文献类型：期刊文献

英文题名：Controlled synthesis and characterizations of thermo-stabilized Ag3PO4 crystals

作者：Wang, Jian-Dong[1];Wang, Feng-Rui[1];Liu, Jin-Ku[1];Yang, Xiao-Hong[1,2];Zhong, Xin-Hua[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]Chizhou Univ, Dept Chem, Chizhou 247000, Peoples R China

年份：2016

卷号：42

期号：12

起止页码：8285

外文期刊名：RESEARCH ON CHEMICAL INTERMEDIATES

收录：;EI(收录号：20162702550099);WOS:【SCI-EXPANDED(收录号:WOS:000388141100036)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant 21341007), Fundamental Research Funds for the Central Universities (Grant 222201313005) and State Key Laboratory of Pollution Control and Resource Reuse Foundation (Grant 13019).

语种：英文

外文关键词：Ag3PO4; In-situ XRD; Thermo-stabilized crystal; Lattice optimization; Chemical stability

摘要：Thermal stability of Ag3PO4 crystals was explored, and the calcination treatment was used to diminish the growth defect inside the Ag3PO4 crystals and improve their photoelectric properties. The results of in situ XRD and TG-DSC patterns indicated that Ag3PO4 crystals could maintain the integrality of their crystal structure under 400 A degrees C. Photocatalytic efficiency and life of Ag3PO4-30-400 was improved by 138 and 800 %, respectively, compared with the pure Ag3PO4 crystals. The XPS patterns of P and O elements showed that hydroxyl groups in Ag3PO4 increased after the thermal treatment, from which it could be concluded that the hydroxyl groups filled up the Ag-O bonds after absorbing the energy in the heating process to re-optimize the lattice structure and were converted into hydroxyl radicals in the photocatalytic process, which generated a higher photocatalytic efficiency and chemical stability.