Fang Luo

Name: 罗芳

Organization: Northeast Normal University , China

Department: College of Chemistry

Title: NULL(PhD)

Chemicals
References

An UV equipped box for photoactivation with a fluorescent coordination polymer for recognizing amine gases by “turn-color” in air

Co-reporter:Dan-Feng He, Yi-Wei Liu, Ying Lu, Shu-Mei Liu, Xu-gang Chen, Ning Li, Fang Luo, Shu-Xia Liu

Sensors and Actuators B: Chemical 2017 Volume 247(Volume 247) pp:

Publication Date(Web):1 August 2017

DOI:10.1016/j.snb.2017.02.178

•Alkaline earth metal-organic coordination polymers have multiple active sites.•The complex was used to recognize toxic amine gases by rapid “turn-color” switch.•A low-cost and convenient fluorescent sensor was prepared.•The sensing material is reusable for more than ten cycles by washing with DMF.•The closed-loop stiffening effect and the enhanced conjugate effect were analyzed.A low-cost and convenient fluorescent indicator of alkaline earth metal–organic coordination polymer Sr(H2ABTC)(DMF)(H2O) (1) (ABTC = 3,3,5,5-azobenzenetetracarboxylic acid) was designed and synthesized by using a flexible ligand ABTC and alkaline earth metal ion Sr2+ for sensing trace amine gases in the air. The complex 1 was characterized by X-ray single crystal measurement, mainly composed of conjugated fluorophore and uncoordinated carboxyl groups. A series of detailed experiments confirmed the dramatic change of fluorescence color under ultraviolet. When the complex 1 interacted with amine gases, its fluorescence emission intensity is enhanced and emission peak redshift greatly. Of most important, convenient fluorescence detection for amine gases was realized by a homemade indicator box, which was reusable and allowed to detect the concentration of amine gases down to 10 ppb (parts per billion) upon real-time (3 min). The sensing mechanisms were analyzed through the closed-loop stiffening effect and the enhanced conjugate effect.

Facile fabricating the polyoxometalates functionalized graphene nanocomposite applied in electrocatalytic reduction

Co-reporter:Xiangyan Wei, Jiawei Wei, Liping Huang, Tingting Yan, Fang Luo

Inorganic Chemistry Communications 2017 Volume 81(Volume 81) pp:

Publication Date(Web):1 July 2017

DOI:10.1016/j.inoche.2017.04.021

•The well dispersed and porous phosphomolybdic acid-reduced graphene oxide nanocomposite was synthesized.•The PMo12-rGO electrode presented a much higher peak current of around 1.34 mA with the addition of 25 mM of H2O2.•The PMo12-rGO electrode also presented a much higher peak current of around 1.4 mA with the addition of 10 mM of NO2-.The well dispersed and porous PMo12-rGO nanocomposite was synthesized via a chemical reduction method by the facile and economical reducing agent of thiourea. By optimizing the amount of reducing agent of thiourea, PMo12 was reduced to heteropoly blue, and then reacted with GO to assemble PMo12 clusters onto the rGO by the strong interaction between rGO and PMo12. The SEM, HTEM, FT-IR, UV–vis, XPS and Raman were performed to verify the structure of the PMo12-rGO nanocomposite. The as-prepared PMo12-rGO nanocomposite exhibits high stability and excellent electrocatalytic activity towards the reduction of nitrite and hydrogen peroxide compared with individual PMo12 catalysts, which could be mostly attributed to the synergistic effects of rGO and PMo12. The method is facile, economical and suitable for mass production and common POMs, which opens a new way to fabricate a wide range of hybrid materials using different type of polyoxometalates, and such as-prepared materials have potential applications in catalysis, electrochemisty and related fields.Polyoxometalates (POMs) are reduced to heteropoly blue by facile and economical reducing agent-thiourea, which subsequently react with GO to assemble POMs clusters onto the rGO by the strong interaction between rGO and POMs.Download high-res image (146KB)Download full-size image

Polyoxometalate-Modified Sponge-Like Graphene Oxide Monolith with High Proton-Conducting Performance

Co-reporter:Yiwei Liu;Shumei Liu;Xuying Lai;Jun Miao;Danfeng He;Ning Li;Zhan Shi;Shuxia Liu

Advanced Functional Materials 2015 Volume 25( Issue 28) pp:4480-4485

Publication Date(Web):

DOI:10.1002/adfm.201501912

Graphene oxide (GO) contains abundant oxygen-containing functional groups acting as hydrogen bond acceptors for proton conduction on its basal plane. However, the dilemma in realizing bulk in-plane conduction and the metastability at room temperature of GO films both obstruct its application. Polyoxometalate-modified sponge-like GO monolith (PEGO) with 3D cross-linking inner structure, which exhibits unique “shrink-expand” effect to polar solvent, are synthesized. Owing to the introduction of polyoxometalates and the replacement of unstable epoxy groups by ethylenediamine, PEGO exhibits hitherto the highest proton conductivity under low relative humidity (1.02 × 10⁻² S cm⁻¹ at 60% relative humidity) and excellent long-term stability (more than 1 month). The outstanding conductivity originates from 3D transporting pathways, high-density hopping sites, and eliminated grain boundary resistance. This study provides a practical way to design GO-based proton-conducting material dominated by in-plane diffusion.

White-light emission by selectively encapsulating single lanthanide metal ions into alkaline earth metal-organic coordination polymers

Co-reporter:Dan-Feng He, Qun Tang, Shu-Mei Liu, Fang Luo, Yi-Wei Liu, Ning Li, Jun Miao, Xing-Quan Wang, Xu-Gang Chen, Feng-ji Ma, Shu-Xia Liu

Dyes and Pigments 2015 Volume 122() pp:317-323

Publication Date(Web):November 2015

DOI:10.1016/j.dyepig.2015.07.005

•Alkaline earth metal-organic coordination polymers with multiple active sites.•Eu3+ was fixed to generate white-light emission instead of “three primary colors”.•The amount of Ln3+ was obtained by two trajectories in the CIE colour space model.•The complexes were used to sense Fe(III) ions with an almost total quenching effect.An effective method to obtain white-light emitters by encapsulating a single lanthanide metal ion into an alkaline earth metal-organic coordination polymers is presented. Two novel complexes SrL(H2O) and BaL(DMF) (L = 1,1′,1′′-(benzene-1,3,5-triyl)tripiperidine-4-carboxylic acid) were synthesized, and lanthanide metal ions were encapsulated by coordination with their active sites. The CIE coordinates of the modified complexes are tuned along two separate trajectories by regulating the content of either Eu3+ or Tb3+. The trajectories of the complexes containing Eu3+ pass through the white region in the CIE diagram. Different from the traditional idea of overlaying three emission colors, white-light emission of the modified complexes is explored by encapsulating only Eu3+ into the blue-light emission coordination polymers to decrease the number of unmanageable variables. Luminescence measurements show that the complexes can specifically identify Fe3+ with almost complete emission quenching, which is not observed in the presence of other metal ions.The novel blue-light emitting alkaline earth metal-organic coordination polymer was converted to white-light emitter by selectively encapsulating single lanthanide metal ions.

One-pot twelve tungsten phosphate acid assisted electrochemical synthesis of WO3-decorated graphene sheets for high-efficiency UV-light-driven photocatalysis

Co-reporter:Yuanmeng Zhao, Xiangyan Wei, Yinyin Wang, Fang Luo

Chemical Physics Letters 2014 Volume 607() pp:34-38

Publication Date(Web):27 June 2014

DOI:10.1016/j.cplett.2014.05.043

One-step molybdate ion assisted electrochemical synthesis of α-MoO3-decorated graphene sheets and its potential applications

Co-reporter:Jiangbo Hu, Anas Ramadan, Fang Luo, Bin Qi, Xiaojiao Deng and Ji Chen

Journal of Materials Chemistry A 2011 vol. 21(Issue 38) pp:15009-15014

Publication Date(Web):19 Aug 2011

DOI:10.1039/C1JM12035B

We introduce an easy and scalable approach to synthesize α-MoO3-decorated graphene sheets from a graphite electrode by molybdate-assisted electrochemical exfoliation. The samples were examined by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transformation infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction and thermogravimetric analysis. TEM analysis shows that the exfoliated material consists of mainly a few-layers of graphene and the results of XPS, FT-IR and Raman confirmed the presence of α-MoO3 on the graphene sheets. Moreover, XPS spectra indicate that the content of surface oxygen groups on the graphene sheets is lower than that on graphite oxide. After being heat-treated at low-temperature (200 °C), samples exhibited high conductivity (up to 5367 S m−1) and good specific capacitance (up to 86.3 F g−1) when tested as electrode materials in a supercapacitor.

Design synthesis and photocatalytic activity of a novel lilac-like silver-vanadate hybrid solid based on dicyclic rings of [V4O12]4− with {Ag7}7+ cluster

Co-reporter:Yan Hu, Fang Luo and Fangfang Dong

Chemical Communications 2011 vol. 47(Issue 2) pp:761-763

Publication Date(Web):11 Nov 2010

DOI:10.1039/C0CC02965C

An unusual two-dimensional bicyclic [V4O12]4−-based coordination polymer with a novel maximum {Ag7}7+ cluster and containing five crystallographically-independent silver atoms was obtained and showed good photocatalytic activity for the degradation of methylene blue.

Synthesis, characterization, and crystal structure of a new three-dimensional phosphate with large cavities and polynuclear vanadium

Co-reporter:Liang Che, Luolan Li, Fang Luo

Inorganic Chemistry Communications 2011 Volume 14(Issue 8) pp:1271-1273

Publication Date(Web):August 2011

DOI:10.1016/j.inoche.2011.04.039

A new three-dimensional phosphate by the synergy of five-coordinated and six-coordinated vanadium, has been obtained. Compared with other V–P–O systems, large cavity and polynuclear transition metal are co-existed in the new compound, which is rarely reported.A new 3D vanadium oxide phosphate compound (H2en)2{V(H2O)2[(V2O2)2(OH)2(HPO4)2(PO4)2]2}·4H2O (1) has been synthesized and characterized. Its electrochemical and magnetic properties were studied. In order to verify and interpret the cavities of the compound (1), the property of N2 adsorption was also pulled in as means of assisting.Research Highlights► In this study, we report a new three-dimensional vanadium phosphate. ► We study electrochemical and magnetic properties of a new phosphate and polynuclear vanadium. ► In this study,we can see that the three-dimensional structure have large cavities.

Kinetics and Equilibria of Cd(II) Adsorption onto a Chemically Modified Lawny Grass with H[BTMPP]

Co-reporter:Lihua Chen, Lili Lü, Wenjing Shao, and Fang Luo

Journal of Chemical & Engineering Data 2011 Volume 56(Issue 4) pp:1059-1068

Publication Date(Web):March 14, 2011

DOI:10.1021/je101037x

Removing Cd(II) by a modified lawny grass adsorbent (RG) containing H[BTMPP] (Cyanex272) has been investigated in this paper. The grass sorbents were characterized by SEM, FTIR, and elemental analysis, confirming that carboxylic groups were introduced onto the grass by chemical modification (citric acid (1CG)) and H[BTMPP] was successfully immobilized onto the grass (H-RG and H-1CG). H[BTMPP] played an important role in improving the maximum adsorption capacities to 133.2 mg·g−1 from 89.26 mg·g−1 and shortened the equilibration time from (40 to 20) min. From the batch experiments, the optimum pH is in the range of 5.5−6.0 for all adsorbents. H-1CG always had a higher ability to adsorb cadmium ions and the removal rate could be up to 99.54%. The kinetic equilibria could be explained as pseudosecond-order. Column experiments showed that breakthrough began at 160 bed volumes (BV) with H-1CG. A selection of 0.1 mol·L−1 HCl was used as the optimum desorption agent and elution is completed within 25 BV. Thermodynamic results indicated the adsorption of Cd(II) is spontaneous and endothermic. An ion exchange mechanism is involved in the adsorption process. This modified method can be regarded as an efficient strategy to improve the adsorption of cadmium from aqueous solution.

Synthesis and characterization of two inorganic–organic hybrid polyoxometalates bridged by Keggin-type building blocks and copper(II) organonitrogen complexes

Co-reporter:Fang-Fang Dong;Liang Che;Luo-Lan Li

Transition Metal Chemistry 2011 Volume 36( Issue 1) pp:125-130

Publication Date(Web):2011 February

DOI:10.1007/s11243-010-9444-0

Two new inorganic–organic hybrid compounds, namely [Cu(dab)2]2[α-SiW12O40]·H2O (dab = 1,2-diaminobenzene) and [Cu(dafo)3]2[Cu(dafo)2(H2O)2][α-PMo12O40]2·4H2O (dafo = 4,5-diaza- fluorene-9-one) have been synthesized under hydrothermal conditions and structurally characterized by single-crystal X-ray diffraction. [Cu(dab)2]2[α-SiW12O40]·H2O exhibits an alternating 2D ladder-like structure built of [α-SiW12O40]4− and [Cu(L)2]2+ units. As the inorganic building block, the Keggin-type polyoxoanion [α-SiW12O40]4− is linked to two metal–organic complexes [Cu(dab)2]2+ through different kinds of oxygen atoms (terminal and bridging). [Cu(dafo)3]2[Cu(dafo)2(H2O)2][α-PMo12O40]2·4H2O shows an extended 3D supramolecular network via hydrogen bonding. Both complexes were characterized by physico-chemical and spectroscopic methods.

Biosorption of Methylene Blue from Aqueous Solution Using Lawny Grass Modified with Citric Acid

Co-reporter:Lihua Chen, Anas Ramadan, Lili Lü, Wenjing Shao, Fang Luo, and Ji Chen

Journal of Chemical & Engineering Data 2011 Volume 56(Issue 8) pp:3392-3399

Publication Date(Web):July 11, 2011

DOI:10.1021/je200366n

Using the low cost of lawny grass to remove methylene blue (MB) from aqueous solution was evaluated in the batch process and the fixed-bed column. The MB adsorption capacity onto CG (grass modified with citric acid) was 301.1 mg·g–1 biomass, which was almost three times than that of RG (raw grass). The equilibrium could be explained as pseudofirst-order kinetic processes, and equilibrium time was shortened to 20 min (CG) from 40 min (RG). The adsorption equilibrium followed the Langmuir isotherm model. The desorption rate with 0.1 mol·L–1 HCl was almost 90 %. Regenerated CG was reusable with a little decrease (only about 3.38 %) in its adsorption capacity during six repeated cycles. In the fixed-bed column, the breakthrough point of CG begins at 183 BV, which was much higher than that of RG (56 BV). The elution process was achieved in a very small HCl volume.

Controlling the synthesis of novel chiral polyoxometalate-based compounds and racemic compounds from the same system

Co-reporter:Yi Zhang, Ling Zhang, Zhaomin Hao and Fang Luo

Dalton Transactions 2010 vol. 39(Issue 30) pp:7012-7016

Publication Date(Web):26 May 2010

DOI:10.1039/B926777H

A pair of enantiomers and one racemic compound have been constructed in the absence of any outside chiral influence. The enantiomers represent the first chiral configuration based on s-block cation linked 1D chain. Meanwhile, the racemic compound comprised of two chiral units shows centrosymmetric structure due to spacial structural symmetry.

Two organic–inorganic hybrid frameworks with helical structures and large cavities constructed from poly(oxomolybdophosphates)

Co-reporter:Zhaomin Hao, Qingsong Dong, Ling Zhang, Yi Zhang and Fang Luo

CrystEngComm 2010 vol. 12(Issue 3) pp:977-982

Publication Date(Web):27 Nov 2009

DOI:10.1039/B916687D

Two novel poly(oxomolybdophosphates) have been synthesized hydrothermally and characterized by single-crystal X-ray diffraction, IR spectroscopy, TG analysis, cyclic voltammetry, and magnetic susceptibility. In compound 1, the bbi ligands form a series of unusual one-dimensional pores with large apertures through the π⋯π stacking and hydrogen bonding interactions, meanwhile, the right- and left-hand helical chains are constructed from the Mn[P4Mo6]2-type secondary building units that are interspersed in the one-dimensional pore. Compound 2 exhibits a three-dimensional open-framework structure with large cavities where the protonated molecules of ethylenediamine and dissociative water molecules are located.

Equilibrium and Kinetic Modeling of Pb(II) Biosorption by a Chemically Modified Orange Peel Containing Cyanex 272

Co-reporter:Lili Lü, Lihua Chen, Wenjing Shao, and Fang Luo

Journal of Chemical & Engineering Data 2010 Volume 55(Issue 10) pp:4147-4153

Publication Date(Web):July 30, 2010

DOI:10.1021/je1000846

In this paper, a new kind of biosorbent containing the extractant Cyanex 272 was prepared by the method of solid−liquid grinding and found to be efficient in removing Pb(II) from aqueous solution. Orange peel (OP) biosorbents were characterized by SEM, FTIR, BET, and elemental analysis, which confirmed that carboxylic groups were introduced into the orange peel by chemical modification [citric acid (CO), saponification and citric acid (SCO)] and that Cyanex 272 was successfully immobilized on the orange peel (272OP, 272CO, and 272SCO). In addition, Cyanex 272 played an important role in the adsorption process, i.e., the maximum adsorption capacity (obtained from the Langmuir−Freundlich model) was improved, with the order of the adsorption capacities being 272SCO (1.30 mol·kg−1) > SCO (1.26 mol·kg−1) > 272CO (1.20 mol·kg−1) > 272OP (1.02 mol·kg−1) > CO (0.62 mol·kg−1), and the equilibrium time was shortened from 60 to 40 min for 272SCO. It was obvious that adsorption of Pb(II) strongly depends on pH, with the optimum pH range being 5.0−5.8 for all adsorbents, and the removal rate of Pb(II) by 272SCO could be as high as 100 %. The optimum solid/liquid ratio was 3.7 g·L−1 for an initial Pb(II) concentration of 0.002 mol·L−1. The kinetic equilibria could be explained as pseudo-second-order kinetic processes. The optimum desorption agent was found to be 0.1 mol·L−1 HCl. The adsorption capacity of 272SCO declined slightly after being recycled six times. After the sixth cycle, the adsorption rate of Pb(II) onto 272SCO was still 89.61 %.

One-Step Ionic-Liquid-Assisted Electrochemical Synthesis of Ionic-Liquid-Functionalized Graphene Sheets Directly from Graphite

Co-reporter:Na Liu;Haoxi Wu;Yinghui Liu;Chao Zhang;Ji Chen

Advanced Functional Materials 2008 Volume 18( Issue 10) pp:1518-1525

Publication Date(Web):

DOI:10.1002/adfm.200700797

Abstract

Graphite, inexpensive and available in large quantities, unfortunately does not readily exfoliate to yield individual graphene sheets. Here a mild, one-step electrochemical approach for the preparation of ionic-liquid-functionalized graphite sheets with the assistance of an ionic liquid and water is presented. These ionic-liquid-treated graphite sheets can be exfoliated into functionalized graphene nanosheets that can not only be individuated and homogeneously distributed into polar aprotic solvents, but also need not be further deoxidized. Different types of ionic liquids and different ratios of the ionic liquid to water can influence the properties of the graphene nanosheets. Graphene nanosheet/polystyrene composites synthesized by a liquid-phase blend route exhibit a percolation threshold of 0.1 vol % for room temperature electrical conductivity, and, at only 4.19 vol %, this composite has a conductivity of 13.84 S m⁻¹, which is 3–15 times that of polystyrene composites filled with single-walled carbon nanotubes.

A versatile and “green” electrochemical method for synthesis of copper and other transition metal oxide and hydroxide nanostructures

Co-reporter:Na Liu, Di Wu, Haoxi Wu, Ce Liu, Fang Luo

Materials Chemistry and Physics 2008 Volume 107(2–3) pp:511-517

Publication Date(Web):15 February 2008

DOI:10.1016/j.matchemphys.2007.08.026

A simple electrolysis process employing plain water as an electrolyte was used to prepare Cu(OH)2, CuO, Cu2O nanostructures with different morphologies. No special electrolytes, chemicals, and surfactants are needed. In addition, the FeOOH, Fe3O4, ZnO, and Ni(OH)2 nanostructures were also synthesized by this route, indicative of the universality of the solution route presented herein. The morphologies and structures of the obtained nanostructures have been characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), power X-ray diffraction (XRD), and UV–vis absorption spectra. Furthermore, the mechanism for the formation of metal hydroxide and oxide nanostructures has been preliminarily discussed. The successful preparation of metal-based nanostructures under mild conditions could be of interest for both applications and fundamental studies.

Controllable synthesis of metal hydroxide and oxide nanostructures by ionic liquids assisted electrochemical corrosion method

Co-reporter:Na Liu, Di Wu, Haoxi Wu, Fang Luo, Ji Chen

Solid State Sciences 2008 Volume 10(Issue 8) pp:1049-1055

Publication Date(Web):August 2008

DOI:10.1016/j.solidstatesciences.2007.11.017

Cu(OH)2 nanowires have been synthesized by anodic oxidation of copper through a simple electrolysis process employing ionic liquid as an electrolyte. Controlling the electrochemical conditions can qualitatively modulate the lengths, amounts, and shapes of Cu(OH)2 nanostructures. A rational mechanism based on coordination self-assembly and oriented attachment is proposed for the selective formation of the polycrystalline Cu(OH)2 nanowires. In addition, the FeOOH nanoribbons, Ni(OH)2 nanosheets, and ZnO nanospheres were also synthesized by this route, indicative of the universality of the electrochemical route presented herein. The morphologies and structures of the synthesized nanostructures have been characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), powder X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), and thermogravimetric (TG).

Preparation and evaluation of orange peel cellulose adsorbents for effective removal of cadmium, zinc, cobalt and nickel

Co-reporter:Xiaomin Li, Yanru Tang, Xiuju Cao, Dandan Lu, Fang Luo, Wenjing Shao

Colloids and Surfaces A: Physicochemical and Engineering Aspects 2008 Volume 317(1–3) pp:512-521

Publication Date(Web):20 March 2008

DOI:10.1016/j.colsurfa.2007.11.031

The preparation of chemically modified orange peel cellulose adsorbents and its biosorption behaviors of Co(II), Ni(II), Zn(II) and Cd(II) have been studied. Effects of different chemical modifications on the adsorbent properties including different alkalis saponification (NaOH, NH4OH, and Ca(OH)2) and different acids (C6H6O7·H2O, H2C2O4, and H3PO4) modification after saponification with NaOH were investigated. The FT-IR spectra showed that there are different functional groups in adsorbents, which are able to react with metal ions in aqueous solution. The maximum adsorption capacities of Ni(II), Co(II), Zn(II) and Cd(II) for SPA, SPA, SCA and SOA were obtained as 1.28, 1.23, 1.21 and 1.13 mol/kg and have increased by 95, 178, 60 and 130% compared to raw orange peel, respectively. Effects of initial pH, initial metal ions concentrations, shaking time and solid/liquid ratio on metal ions biosorption were also investigated. Biosorption equilibriums were rapidly established in about 60 min and the adsorption kinetics followed the Lagergren first-order kinetics model. The Langmuir and Freundlich adsorption isotherms models fitted the experimental data best with regression coefficient R2 > 0.95 for all the metal ions. Elution efficiencies with different concentrations of HCl were evaluated.

Study on the preparation of orange peel cellulose adsorbents and biosorption of Cd2+ from aqueous solution

Co-reporter:Xiaomin Li, Yanru Tang, Zhexian Xuan, Yinghui Liu, Fang Luo

Separation and Purification Technology 2007 Volume 55(Issue 1) pp:69-75

Publication Date(Web):15 May 2007

DOI:10.1016/j.seppur.2006.10.025

In this paper, orange peel modified with different chemical reagents as biosorbents were used to remove cadmium ion from aqueous solution. Effects of different chemical modifications on the biosorbent properties including washing, alkali saponification, cross-linking temperature and concentration of cross-linking reagent were investigated. Meanwhile, influence of pH of solution, initial cadmium concentration, shaking time and solid/liquid ratio on the removed of Cd(II) by different chemically modified biosorbents were studied. It can be concluded that cadmium ion could be removed by 0.6SCA80 (orange peel modified with 0.6 mol L−1 citric acid under 80 °C after alkali saponification) biosorbent effective and quick. We obtained a series of biosorbents with the order of cadmium: 0.6SCA80 > SOP > CA2 > CA1 > PA1 > PA2 > OP. For 0.6SCA80, the maximum capacity of cadmium was 0.90 mol kg−1, the optimum pH value was 6, the reaction balance was established after shaking 120 min and the optimum solid/liquid ratio was 4.3 g L−1. The desorption rate of cadmium was 94% with 0.15 mol L−1 HCl solution. A comparison of different isotherm models revealed that the Langmuir isotherm model is fitted the experimental data best. The biosorption follows the Lagergren first-order kinetics model.

Controlling the synthesis of novel chiral polyoxometalate-based compounds and racemic compounds from the same system

Co-reporter:Yi Zhang, Ling Zhang, Zhaomin Hao and Fang Luo

Dalton Transactions 2010 - vol. 39(Issue 30) pp:NaN7016-7016

Publication Date(Web):2010/05/26