Facile one-pot hydrothermal method to prepare Sn(Ⅱ) and N co-doped TiO_(2) photocatalyst for water splitting under visible light irradiation

作     者：Xiao-Huan Jiang Ying-Nan Duan Yu Tian Meng Chen Mao-Kun Li Huan-Huan Liu Wan-Liang Yang Meng-Kui Tian Xiao-Huan Jiang;Ying-Nan Duan;Yu Tian;Meng Chen;Mao-Kun Li;Huan-Huan Liu;Wan-Liang Yang;Meng-Kui Tian

作者机构：School of Chemistry and Chemical EngineeringGuizhou UniversityGuiyang 550025China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第2期

页      面：406-414页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：This study was financially supported by the Natural Science Foundation of China(No.21663009) the National Key R&D Projects of China(No.2018YFC1801706-01) the Science and Technology Supporting Project of Guizhou Province(Nos.2835 and480) 

主　　题：Photocatalyst Photocatalytic water splitting Visible light driven Sn^(2+)and N co-doped TiO_(2) 

摘      要：In this paper,a visible light-responsive Sn^(2+)and N co-doped TiO_(2)photocatalyst was prepared by facile one-pot hydrothermal *** as-prepared samples were characterized in detail by a series of characterization *** results showed that the Sn^(2+)and N elements were co-doped into TiO_(2),while the catalyst still maintains anatase crystal structure and gets irregular little nanocluster in diameter of 9–10 nm with higher specific surface *** absorption edge of Sn^(2+)and N co-doped TiO_(2)extends to the visible light *** with Sn^(2+)-doped TiO_(2)and N-TiO_(2),the absorption edges have obvious red-shift of about 50 and 70 nm,*** synergistic effect of O 2p-N 2p and O 2p-Sn 5s hybridization to form impurity levels is the main reason for the *** hydrogen production performance of the Sn^(2+)and N co-doping TiO_(2)(n(N)/n(Ti)=1)catalyst reached the maximum value of 0.37 mmol·h^(-1)·g^(-1)under visible light,which is higher than that of N-doped TiO_(2)and SnTiO_(2)-doped TiO_(2)*** result is due to the wider visible light region-responsive ability of Sn^(2+)and N codoped into TiO_(2).Furthermore,mild hydrothermal methods will not make the Sn^(2+)oxidized to Sn^(4+),which make the catalysts still maintain high photocatalytic *** work provides a simple and mild method for the preparation of dual-element co-doped TiO_(2)with high crystallinity,excellent performance and broad application prospects.