典型文献
Design of BiOBr0.25I0.75 for synergy photoreduction Cr(Ⅵ)and capture Cr(Ⅲ)over wide pH range
文献摘要:
Conversion of hexavalent chromium(Cr(Ⅵ))to trivalent chromium(Cr(Ⅲ))is an effective way to reduce its environmental risk,especially via photoreduction process.However,over a wide range of pH values,it is still a great challenge to achieve a high removal rate,and the disposal of produced Cr(Ⅲ)should be concerned.In this work,we implemented a high removal rate at 98%for Cr(Ⅵ)and total chromium(Cr(T))over a wide pH range(4-10)through the synergistic effect of adsorption,photoreduction and im-mobilization on the surface of BiOBr0.25I0.75.The substitution of bromine by iodine reduced the adsorption energy of Cr(Ⅵ)on BiOBr0.25I0.75,promoting the adsorption of Cr(Ⅵ).Meanwhile,the introduced iodine upshifted the conduction band(CB),enhancing the reduction ability for Cr(Ⅵ)to Cr(Ⅲ).The negative surface of BiOBr0.25I0.75 can capture Cr(Ⅲ),achieving a high removal rate for Cr(T).The pH-independent feature for Cr(Ⅵ)and Cr(Ⅲ)removal make BiOBr0.2510.75 a potential material for chromium-containing wastewater treatment.This work provides an effective strategy for removing chromium over a wide pH range.
文献关键词:
中图分类号:
作者姓名:
Lixia Jia;Xin Tan;Yanfang Li;Yizhong Zhang;Shiqian Cao;Wei Zhou;Xiang Huang;Lequan Liu;Tao Yu
作者机构:
School of Environmental Science and Engineering,Tianjin University,Tianjin 300350,China;School of Science,Tibet University,Lhasa 850000,China;School of Science,Tianjin University,Tianjin 300350,China;School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China;School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China
文献出处:
引用格式:
[1]Lixia Jia;Xin Tan;Yanfang Li;Yizhong Zhang;Shiqian Cao;Wei Zhou;Xiang Huang;Lequan Liu;Tao Yu-.Design of BiOBr0.25I0.75 for synergy photoreduction Cr(Ⅵ)and capture Cr(Ⅲ)over wide pH range)[J].中国化学快报(英文版),2022(06):3053-3060
A类:
BiOBr0,25I0
B类:
Design,synergy,photoreduction,capture,over,wide,range,Conversion,hexavalent,chromium,trivalent,effective,way,its,environmental,risk,especially,via,process,However,values,still,great,challenge,achieve,high,removal,disposal,produced,should,be,concerned,In,this,work,implemented,total,through,synergistic,adsorption,mobilization,surface,substitution,bromine,by,iodine,reduced,energy,promoting,Meanwhile,introduced,upshifted,conduction,band,CB,enhancing,ability,negative,can,achieving,independent,feature,make,potential,material,containing,wastewater,treatment,This,provides,strategy,removing
AB值:
0.460892
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