Clean application of magnetic biomaterial for the removal of As (III) from water

Environmental Science and Pollution Research International
Agnes PholosiA E Ofomaja

Abstract

Magnetite-coated pine cone biomass was successfully synthesized, characterized, and its interaction with As (III) in water evaluated in order to apply it as an efficient adsorbent. Transmission electron microscope, scanning electron microscope, and imaging studies revealed that spherical magnetite particles were evenly distributed over the pine cone surface. Adsorption studies showed that the optimum pH of As (III) adsorption was 8 and that Fe (III) leaching was negligible at this pH. The optimum Fe3O4:pine cone ratio for As (III) removal was 2.0 g Fe3O4:1.5 g pine cone with adsorption capacity of 13.86 mg/g. The pseudo-second-order model best fitted the kinetic data with activation energy of adsorption was calculated to be 23.78 kJ/mol. The Langmuir isotherm described the equilibrium data best while the values of Dubinin-Radushkevich mean free energy suggests anion-exchange process. Increasing ionic strength slightly increased As (III) capacity of MNP-PCP from 13.86 to 17.82 mg/g at optimum solution pH of 8, but As (III) adsorption reduced by [Formula: see text]anions and humic acid due to competition. Adsorption mechanism was confirmed with evidence from FTIR, XPS, pHPZC, and [Formula: see text] replacement by As (III) adsorp...Continue Reading

References

Sep 21, 2001·Environmental Science & Technology·X MengC Christodoulatos
Jul 30, 2002·Environmental Science & Technology·Aaron D RedmanDianne Ahmann
Mar 25, 2005·Environmental Science & Technology·Sushil Raj KanelHeechul Choi
Sep 30, 2005·Environmental Science & Technology·Luis Cumbal, Arup K Sengupta
Apr 1, 2006·Environmental Science & Technology·Maria PenaChuanyong Jing
Oct 19, 2006·Journal of Colloid and Interface Science·P LakshmipathirajG Bhaskar Raju
Apr 7, 2007·Environmental Science & Technology·Abul B M GiasuddinHeechul Choi
Dec 21, 2007·Journal of Hazardous Materials·Biplob Kumar BiswasHidetaka Kawakita
Oct 16, 2008·Environmental Science & Technology·Jing-fu LiuGui-bin Jiang
Jan 10, 2009·Journal of Hazardous Materials·D RanjanS H Hasan
Apr 24, 2009·Journal of Hazardous Materials·A E OfomajaS J Modise
Aug 12, 2009·Journal of Colloid and Interface Science·Fangfang ChangXu Zhao
Oct 30, 2009·Journal of Environmental Sciences (China)·Renkou XuHouyan Wang
Nov 20, 2009·Environmental Science & Technology·Edward D BurtonGretel K Parker
Dec 19, 2009·Journal of Colloid and Interface Science·Shujuan ZhangJ Paul Chen
Aug 25, 2011·Journal of Hazardous Materials·Ye TianYong Huang
Oct 18, 2011·Water Research·Zhixi ZhaoShanlin Zhao
Jun 25, 2013·Environmental Geochemistry and Health·Linda AnsoneArturs Viksna
Nov 20, 2013·Advances in Colloid and Interface Science·Eva KumarMika Sillanpää
Oct 7, 2014·Journal of Preventive Medicine and Public Health = Yebang Ŭihakhoe Chi·Jin-Yong ChungYoung-Seoub Hong
Jan 13, 2015·Physical Chemistry Chemical Physics : PCCP·Fei YuSheng Han
Oct 6, 2015·Journal of Environmental Quality·Weihua ZhangRongliang Qiu

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Citations

Aug 1, 2020·Journal of Environmental Management·Khaled Zoroufchi BenisJafar Soltan

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