Fabrication of 3 D Mesoporous Black TiO2 /MoS2 /TiO2 Nanosheets for Visible-Light-Driven Photocatalysis.
A novel 3 D mesoporous black TiO2 (MBT)/MoS2 /MBT sandwich-like nanosheet was successfully fabricated using a facile mechanochemical process combined with an in situ solid-state chemical reduction approach, followed by mild calcination (350 °C) under an argon atmosphere. The MBT/MoS2 /MBT exhibits a 3 D sandwich-like nanosheet structure and heterojunctions are formed at the interfaces between MoS2 and black TiO2 . The significantly narrowed band gap of MBT/MoS2 /MBT is attributed to the introduction of MoS2 and the formed Ti(3+) species in the frameworks. The visible-light photocatalytic degradation rate of methyl orange and the hydrogen production rate are as high as 89.86 % and 0.56 mmol h(-1)  g(-1) , respectively. The introduction of MoS2 and Ti(3+) in the frameworks favors the visible-light absorption and the separation of photogenerated charges, and the 3 D sandwich-like heterojunction structure facilitates the transfer of photogenerated charges.
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
Xuefeng
X
Liu
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China. xzplab@163.com.
Zipeng
Z
Xing
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
Hang
H
Zhang
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
Wenmei
W
Wang
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China.
Yan
Y
Zhang
Department of Epidemiology and Biostatistics, Harbin Medical University, No. 194 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150040, P.R. China.
Zhenzi
Z
Li
Department of Epidemiology and Biostatistics, Harbin Medical University, No. 194 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150040, P.R. China.
Xiaoyan
X
Wu
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China. yuxiujuan@hlju.edu.cn.
Xiujuan
X
Yu
Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of PR China, Heilongjiang University, No. 74 Xuefu Road, Nangang District, Harbin City, Heilongjiang Province, 150080, P.R. China. zwchem@hotmail.com.
Wei
W
Zhou
D000327:Adsorption; D001391:Azo Compounds / Q000737:chemistry / Q000302:isolation & purification; D002384:Catalysis; D004220:Disulfides / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry; D008027:Light; D008982:Molybdenum / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D055668:Photochemical Processes; D016062:Porosity; D014025:Titanium / Q000737:chemistry*
D001391:Azo Compounds; D004220:Disulfides; C009495:titanium dioxide; C100258:methyl orange; D006859:Hydrogen; D008982:Molybdenum; D014025:Titanium; C082964:molybdenum disulfide
heterojunction; hydrogen evolution; mesoporous black titania; photocatalysis; visible-light-driven