Kinetics, thermodynamics, and equilibrium of As(Ⅲ),Cd(Ⅱ), Cu(Ⅱ) and Pb(Ⅱ) adsorption using porous chitosan bead-supported MnFe_(2)O_(4) nanoparticles

作     者：Hongxia Li Hongbing Ji Xinglan Cui Xiaokui Che Qidong Zhang Juan Zhong Rongzhen Jin Lei Wang Yi Luo Hongxia Li;Hongbing Ji;Xinglan Cui;Xiaokui Che;Qidong Zhang;Juan Zhong;Rongzhen Jin;Lei Wang;Yi Luo

作者机构：National Engineering Research Center for Environment-friendly Metallurgy in Producing Premium Non-ferrous MetalsGRINM Resources and Environmental Technology Corporation LimitedBeijing 101407China Beijing Key Laboratory of Resource-oriented Treatment of Industrial PollutionSchool of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing 100083China GRINM Group Corporation LimitedBeijing 100088China GRIMAT Engineering Institute Corporation LimitedBeijing 100088China 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2021年第31卷第6期

页      面：1107-1115页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 09[农学] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 0903[农学-农业资源与环境] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0713[理学-生态学] 0702[理学-物理学] 

基　　金：funded by the National Key Research and Development Project (No. 2020YFC1807700) the National Key Research and Development Project (No. 2019YFC1805900) the Youth Fund Project of GRINM (No. 12008) the Youth Fund Project of GRINM (No. 12119) the Open Foundation of State Key Laboratory of Mineral Processing (No. BGRIMM-KJSKL-2020-07) the Open Foundation of State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization (No. 2021P4FZG13A) the National Natural Science Foundation of China (No. 51704028) 

主　　题：Equilibrium Adsorption Arsenic Cadmium Chitosan MnFe_(2)O_(4)nanoparticles 

摘      要：A novel porous nanocomposite,cross-linked chitosan and polyethylene glycol(PEG) bead-supported MnFe_(2) O_(4) nanoparticles(CPM),was developed as an efficient adsorbent to remove metalloid(As(Ⅲ))and heavy metals(Cd(Ⅱ),Cu(Ⅱ),and Pb(Ⅱ)).The characteristics of CPM showed a porous structure,well dispersed MnFe_(2) O_(4),and several of hydroxyl and amino groups(-OH,-NH_(2)).Batch experiments demonstrated that the best adsorption property of As(Ⅲ),Cd(Ⅱ),Cu(Ⅱ),and Pb(Ⅱ) was achieved within 8 h with maximum adsorption capacities of 9.90,9.73,43.94,and 11.98 mg/g,*** and synergistic effects(particularly precipitation) were included in the co-adsorption mechanism of As(Ⅲ) and heavy ***,As(Ⅲ) was partly oxidized by MnFe_(2) O_(4) to As(V),and both were coordinated on MnFe_(2) O_(4) ***(Ⅱ) could also bind to MnFe_(2) O_(4) by ion exchange and electrostatic ***,Cd(Ⅱ) and Cu(Ⅱ) tended to be coordinated on ***,CPM can serve as a remediation material for water and soil co-contaminated with As(Ⅲ) and heavy metals.