Adsorption studies of arsenic on Mn-substituted iron oxyhydroxide.
作者： P. Lakshmipathiraj , B.R.V. Narasimhan , S. Prabhakar , G. Bhaskar Raju
DOI: 10.1016/J.JCIS.2006.09.024
关键词: Adsorption 、 Arsenate 、 Inorganic chemistry 、 Sodium carbonate 、 Arsenite 、 Arsenic 、 Manganese 、 Ferrous 、 Langmuir adsorption model 、 Chemistry
摘要: Abstract Mn-substituted iron oxyhydroxide (Mn 0.13 Fe 0.87 OOH) was prepared by the oxidation of ferrous carbonate precipitated from sulfate and sodium solutions. X-ray diffraction analysis led to conclusion that sample basically manganese hydroxide with bixbyite structure. The exhibited a surface area 101 m 2 g −1 pore volume 0.35 cm 3 . Batch experiments were conducted study adsorption arsenite arsenate species onto (MIOH) equilibrium time evaluated. temperature varied 30 60 °C. maximum uptake found be 4.58 5.72 mg g , respectively. Zeta potential measurements FT-IR spectral studies also nature adsorption. In both cases, best described Langmuir isotherm activation energies as calculated model-free isoconversional method on order 15–24 45–67 kJ mol for arsenite,
harvard.edu
elsevier.com
sci-hub.se 参考文章(18)
Sergey Vyazovkin, Computational aspects of kinetic analysis. Thermochimica Acta. ,vol. 355, pp. 155- 163 ,(2000) , 10.1016/S0040-6031(00)00445-7
Andrew K Galwey, Eradicating erroneous Arrhenius arithmetic Thermochimica Acta. ,vol. 399, pp. 1- 29 ,(2003) , 10.1016/S0040-6031(02)00465-3
Joyce D. Sewry, Michael E. Brown, “Model-free” kinetic analysis? Thermochimica Acta. ,vol. 390, pp. 217- 225 ,(2002) , 10.1016/S0040-6031(02)00083-7
E.A Deliyanni, D.N Bakoyannakis, A.I Zouboulis, K.A Matis, Sorption of As(V) ions by akaganéite-type nanocrystals. Chemosphere. ,vol. 50, pp. 155- 163 ,(2003) , 10.1016/S0045-6535(02)00351-X
X. Chris Le, Xiufen Lu, Mingsheng Ma, William R. Cullen, H. Vasken Aposhian, Baoshan Zheng, Speciation of key arsenic metabolic intermediates in human urine. Analytical Chemistry. ,vol. 72, pp. 5172- 5177 ,(2000) , 10.1021/AC000527U
Sushil Raj Kanel, Bruce Manning, Laurent Charlet, Heechul Choi, Removal of Arsenic(III) from Groundwater by Nanoscale Zero-Valent Iron Environmental Science & Technology. ,vol. 39, pp. 1291- 1298 ,(2005) , 10.1021/ES048991U
P LAKSHMIPATHIRAJ, B NARASIMHAN, S PRABHAKAR, G BHASKARRAJU, Adsorption of arsenate on synthetic goethite from aqueous solutions. Journal of Hazardous Materials. ,vol. 136, pp. 281- 287 ,(2006) , 10.1016/J.JHAZMAT.2005.12.015
Jenny Weijun Wang, Dorin Bejan, Nigel J. Bunce, Removal of arsenic from synthetic acid mine drainage by electrochemical pH adjustment and coprecipitation with iron hydroxide. Environmental Science & Technology. ,vol. 37, pp. 4500- 4506 ,(2003) , 10.1021/ES030359Y
Jennifer A Wilkie, Janet G Hering, Adsorption of arsenic onto hydrous ferric oxide: effects of adsorbate/adsorbent ratios and co-occurring solutes Colloids and Surfaces A: Physicochemical and Engineering Aspects. ,vol. 107, pp. 97- 110 ,(1996) , 10.1016/0927-7757(95)03368-8
P Ratna Kumar, Sanjeev Chaudhari, Kartic C Khilar, S.P Mahajan, REMOVAL OF ARSENIC FROM WATER BY ELECTROCOAGULATION Chemosphere. ,vol. 55, pp. 1245- 1252 ,(2004) , 10.1016/J.CHEMOSPHERE.2003.12.025