Self-template-oriented synthesis of lead-free perovskite Cs3Bi2I9 nanosheets for boosting photocatalysis of CO2 reduction over Z-scheme heterojunction Cs3Bi2I9/CeO2|You-Xiang Feng;Guang-Xing Dong;Ke Su;Zhao-Lei Liu;Wen Zhang;Min Zhang;Tong-Bu Lu|Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion,School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China - 期刊导航|首站-论文投稿智能助手|论文发表|论文智能投稿|期刊自助发表推荐|杂志社快速发表|查同导刊-域田数据官方网站

典型文献

Self-template-oriented synthesis of lead-free perovskite Cs3Bi2I9 nanosheets for boosting photocatalysis of CO2 reduction over Z-scheme heterojunction Cs3Bi2I9/CeO2

文献摘要：

Lead halide perovskite(LHP)nanocrystals have been intensely studied as photocatalysts for artificial pho-tosynthesis in recent years.However,the toxicity of lead in LHP seriously limits their potential for wide-spread applications.Herein,we first present the synthesis of 2D lead-free halide perovskite(Cs3Bi2Ig)nanosheets with self-template-oriented method,in which BiOI/Bi2O2.7 nanosheets were used as the tem-plate and Bi ion source simultaneously.Through facile electrostatic self-assembly strategy,a Z-scheme heterojunction composed of CS3Bi2I9 nanosheets and CeO2 nanosheets(CS3Bi2I9/CeO2-3:1)was con-structed as photocatalyst for the photo-reduction of CO2 coupled with the oxidation of H2O.Due to the matching energy levels and the close interfacial contact between Cs3Bi2I9 and CeO2 nanosheets,the sep-aration efficiency of the photogenerated carriers in CS3Bi2I9/CeO2-3:1 composite was significantly improved.Consequently,the environment-friendly halide perovskite heterojunction CS3Bi2l9/CeO2-3:1 presents impressive photocatalytic activity for the reduction of CO2 to CH4 and CO with an electron con-sumption yield of 877.04 μmol g-1,which is over 7 and 15 times higher than those of pristine Cs3Bi2I9 and CeO2 nanosheets,exceeding the yield of other reported bismuth-based perovskite for photocatalytic CO2 reduction.

文献关键词：

中图分类号：

[1] 自动化技术、计算机技术（TP） / 计算技术、计算机技术（TP3） / 计算机的应用（TP39） / 信息处理(信息加工)（TP391）

[2] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）

[3] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）

作者姓名：

You-Xiang Feng;Guang-Xing Dong;Ke Su;Zhao-Lei Liu;Wen Zhang;Min Zhang;Tong-Bu Lu

作者机构：

MOE International Joint Laboratory of Materials Microstructure,Institute for New Energy Materials and Low Carbon Technologies,School of Materials Science and Engineering,Tianjin University of Technology,Tianjin 300384,China;Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion,School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China

文献出处：

能源化学

引用格式：

[1]You-Xiang Feng;Guang-Xing Dong;Ke Su;Zhao-Lei Liu;Wen Zhang;Min Zhang;Tong-Bu Lu-.Self-template-oriented synthesis of lead-free perovskite Cs3Bi2I9 nanosheets for boosting photocatalysis of CO2 reduction over Z-scheme heterojunction Cs3Bi2I9/CeO2)[J].能源化学,2022(06):348-355

A类：

Cs3Bi2Ig,CS3Bi2I9,CS3Bi2l9

B类：

Self,template,oriented,lead,free,perovskite,Cs3Bi2I9,nanosheets,boosting,photocatalysis,reduction,over,scheme,heterojunction,CeO2,Lead,halide,LHP,nanocrystals,have,been,intensely,studied,photocatalysts,artificial,tosynthesis,recent,years,However,toxicity,seriously,limits,their,potential,wide,spread,applications,Herein,first,2D,self,method,which,BiOI,Bi2O2,were,used,source,simultaneously,Through,facile,electrostatic,assembly,strategy,composed,was,structed,coupled,oxidation,H2O,Due,matching,energy,levels,close,interfacial,contact,between,sep,aration,efficiency,photogenerated,carriers,composite,significantly,improved,Consequently,environment,friendly,presents,impressive,photocatalytic,activity,CH4,electron,sumption,yield,times,higher,than,those,pristine,exceeding,other,reported,bismuth

AB值：

0.512521

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