典型文献
Asenic removal from groundwater using granular chitosan-titanium adsorbent
文献摘要：
Arsenic (As) contamination poses an urgent environmental risk,and its removal from groundwater remains a challenge due to the lack of efficient adsorbents.Herein,a novel granular chitosan-titanium (CS-Ti) adsorbent was fabricated by the sol-gel method.Batch experiments show that As(Ⅴ) adsorption on CS-Ti followed the pseudo-second-order kinetic model,and the adsorption isotherm conformed to the Freundlich model with the correla-tion coefficient of 0.99.In situ FTIR spectra revealed that the CS-Ti adsorbent was composed of amorphous TiOx and chitosan by forming C-O-Ti and N-Ti bonds,and the amorphous TiOx was responsible for As(Ⅴ) adsorption.Rapid small-scale column tests show that 165.6μg/L of As in groundwater were effectively removed in approximately 126-bed volumes,and the spent adsorbents were regenerated with 0.01 mol/L NaOH and maintained the adsorp-tion efficiency after four cycles.This study provides a simple and practical route to fabricate adsorbents for water treatment.
文献关键词：
中图分类号：
作者姓名：
Zuben Xu;Yaqin Yu;Li Yan;Wei Yan;Chuanyong Jing
作者机构：
State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Environmental Science and Engineering,Shandong University,Qingdao 266237,China
文献出处：
引用格式：
[1]Zuben Xu;Yaqin Yu;Li Yan;Wei Yan;Chuanyong Jing-.Asenic removal from groundwater using granular chitosan-titanium adsorbent)[J].环境科学学报（英文版）,2022(02):202-209
A类：
Asenic
B类：
removal,from,groundwater,using,granular,chitosan,titanium,Arsenic,contamination,poses,urgent,environmental,risk,its,remains,challenge,due,lack,adsorbents,Herein,novel,CS,was,fabricated,by,sol,gel,method,Batch,experiments,show,that,adsorption,followed,pseudo,second,order,kinetic,model,isotherm,conformed,Freundlich,correla,coefficient,In,situ,FTIR,spectra,revealed,composed,amorphous,TiOx,forming,bonds,responsible,Rapid,small,scale,column,tests,were,effectively,removed,approximately,bed,volumes,spent,regenerated,NaOH,maintained,efficiency,after,four,cycles,This,study,provides,simple,practical,route,treatment
AB值：
0.58318
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
