典型文献
Release of Pb adsorbed on graphene oxide surfaces under conditions of Shewanella putrefaciens metabolism
文献摘要：
In this study,Pb(Ⅱ)was used as a target heavy metal pollutant,and the metabolism of She-wanella putrefaciens(S.putrefaciens)was applied to achieve reducing conditions to study the effect of microbial reduction on lead that was preadsorbed on graphene oxide(GO)surfaces.The results showed that GO was transformed to its reduced form(r-GO)by bacteria,and this process induced the release of Pb(Ⅱ)adsorbed on the GO surfaces.After 72 hr of exposure in an S.putrefaciens system,5.76％of the total adsorbed Pb(Ⅱ)was stably dispersed in solution in the form of a Pb(Ⅱ)-extracellular polymer substance(EPS)complex,while another portion of Pb(Ⅱ)released from GO-Pb(Ⅱ)was observed as lead phosphate hydroxide(Pb10(PO4)6(OH)2)precipitates or adsorbed species on the surface of the cell.Additionally,increasing pH in-duced the stripping of oxidative debris(OD)and elevated the content of dispersible Pb(Ⅱ)in aqueous solution under the conditions of S.putrefaciens metabolism.These research re-sults provide valuable information regarding the migration of heavy metals adsorbed on GO under reducing conditions due to microbial metabolism.
文献关键词：
中图分类号：
作者姓名：
Jianfeng Zhang;Shichang Wei;Zhenxing Liu;Huang Tang;Xiaoguang Meng;Weihuang Zhu
作者机构：
Shaanxi Key Laboratory of Environmental Engineering,Key Laboratory of Northwest Water Resource,Environment and Ecology,MOE,Xi'an University of Architecture and Technology,Xi'an 710055,China;Center for Environmental Systems,Stevens Institute of Technology,NJ 07030,USA
文献出处：
引用格式：
[1]Jianfeng Zhang;Shichang Wei;Zhenxing Liu;Huang Tang;Xiaoguang Meng;Weihuang Zhu-.Release of Pb adsorbed on graphene oxide surfaces under conditions of Shewanella putrefaciens metabolism)[J].环境科学学报（英文版）,2022(08):67-75
A类：
wanella,preadsorbed,Pb10
B类：
Release,graphene,surfaces,under,conditions,Shewanella,putrefaciens,metabolism,In,this,study,was,used,target,heavy,pollutant,applied,achieve,reducing,effect,microbial,reduction,lead,that,results,showed,transformed,its,reduced,by,bacteria,process,induced,After,hr,exposure,system,total,stably,dispersed,solution,extracellular,polymer,substance,EPS,complex,while,another,portion,released,from,observed,phosphate,hydroxide,PO4,precipitates,species,Additionally,increasing,stripping,oxidative,debris,OD,elevated,content,dispersible,aqueous,These,research,provide,valuable,information,regarding,migration,metals,due
AB值：
0.46874
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