文献类型：期刊文献

英文题名：Localized surface-plasmon resonance effect as a new driver of Z-scheme electron transfer in cerium dioxide-graphitic carbon nitride heterojunctions

作者：Li, Xiang[1,2,3] Wu, Ting[1,2,3,6] Liang, Long[1,2,3,4] Tian, Qingwen[1,2,3] Yang, Qiang[1,2,3] Zhu, Yawei[1,2,3] Fang, Guigan[1,2,3,5]

第一作者：Li, Xiang

通信作者：Wu, T[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, Nanjing, Jiangsu, Peoples R China;[2]Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing, Jiangsu, Peoples R China;[3]Natl Forestry & Grassland Adm, Natl Engn Lab Biomass Chem Utilizat, Key Lab Chem Engn Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[4]South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China;[5]Shandong Huatai Paper Co Ltd, Dongying 257335, Shandong, Peoples R China;[6]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Beijing, Peoples R China

年份：2024

卷号：349

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20240115020);Scopus(收录号：2-s2.0-85192449305);WOS:【SCI-EXPANDED(收录号:WOS:001240593000001)】；

基金：This work was supported by the Foundation of the National Key Research and Development Program of China (Project No. 2023YFD2201902) , State Key Laboratory of Pulp and Paper Engineering (202311) , "Jie bang gua shuai" Science and Technology Project of Yibin City (2022JB009) and "Jiebang gua shuai" Project of Chenzhou National Sustainable Development Agenda Innovation Demonstration Zone Provincial Special Programme (2022sfq56) .

语种：英文

外文关键词：LSPR effect; Z-scheme; Bamboo pulping wastewater; Sunlight-driven photocatalyst

摘要：The intersecting interface between the two semiconductors of cerium dioxide (CeO2)-graphitic carbon nitride (gC3N4) heterojunctions, which have demonstrated excellent photocatalytic activity, inhibits the rapid compounding of the photogenerated electron-hole pairs of g-C3N4. CeO2-g-C3N4 heterojunctions with Z-scheme and type-II electron-transfer routes were prepared via calcination in argon and air atmospheres, respectively. The built-in electric field theory cannot be used to explain the presence of a type-II electron-transfer route in CeO2-gC3N4 heterojunctions. According the femtosecond transient absorption spectra, the localized surface-plasmon resonance (LSPR) effect of CeO2 drove the Z-scheme electron transfer in CeO2-g-C3N4 heterojunctions. The CeO2-g-C3N4 heterojunction exhibited a type-II electron-transfer route when the particle size of CeO2 increased, which attenuated the LSPR effect. The CeO2-g-C3N4 heterojunction with the Z-scheme electron-transfer route exhibited 4.4 times higher degradation efficiency for bamboo pulping wastewater than g-C3N4, and this result was attributed to the reduced complexation of photogenerated electron-hole pairs and extended photogenerated electron lifetime. Overall, this research provides a new idea for constructing Z-scheme electron-transfer heterojunctions.