Photocatalytic H2 evolution with a Cu2WS4 catalyst on a metal free D-π-A organic dye-sensitized TiO2

被引：58

作者：

Aslan, Emre ^{[1
]}

Gonce, Mehmet Kerem ^{[2
]}

Yigit, Mesude Zeliha ^{[3
]}

Sarilmaz, Adem ^{[4
]}

Stathatos, Elias ^{[5
]}

Ozel, Faruk ^{[4
]}

Can, Mustafa ^{[6
]}

Patir, Imren Hatay ^{[7
]}

机构：

[1] Selcuk Univ, Dept Chem, TR-42030 Konya, Turkey

[2] Selcuk Univ, Dept Nanotechnol & Adv Mat, TR-42030 Konya, Turkey

[3] Izmir Katip Celebi Univ, Dept Mat Sci & Engn, Fac Engn & Architecture, TR-35620 Izmir, Turkey

[4] Karamanoglu Mehmetbey Univ, Dept Met & Mat Engn, TR-70200 Karaman, Turkey

[5] Technol Educ Inst Western Greece, Dept Elect Engn, Nanotechnol & Adv Mat Lab, GR-26334 Patras, Greece

[6] Izmir Katip Celebi Univ, Fac Engn & Architecture, Dept Engn Sci, TR-35620 Izmir, Turkey

[7] Selcuk Univ, Dept Biotechnol, TR-42030 Konya, Turkey

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 210卷

关键词：

Hydrogen evolution; Hot-injection; Cu2WS4; catalyst; Dye sensitization; VISIBLE-LIGHT; HYDROGEN-PRODUCTION; ANCHORING GROUPS; WATER; GENERATION; GRAPHENE; OXIDE; NANOPARTICLES; ELECTRODES; NANOFIBERS;

D O I：

10.1016/j.apcatb.2017.03.073

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A system comprising of a noble metal free Cu2WS4 catalyst and donor-pi-bridge-acceptor metal-free organic dyes (MZ-341 and MZ-235) sensitized TiO2 has been reported for the photocatalytic hydrogen production using triethanolamine (TEOA) as the sacrificial reagent under visible light irradiation. Cu2WS4 nanocubes were synthesized according to hot-injection reaction technique. The structural properties of the Cu2WS4 nanocubes were examined by microscopy (HR-TEM) and XRD techniques where the formation of nanocubes (rectangular and square cubes) with average edge length to be ranged from 100 to 500 nm and tetragonal phase (I-42m) was proved respectively. It was found that MZ-341 and MZ-235 dyes sensitized TiO2 have been produced 661 mol g 1 h(-1) and 531 mol g(-1) h(-1) hydrogen, respectively in TEOA solution at pH 9. When Cu2WS4, was used as a co-catalyst, hydrogen evolution by MZ-341 and MZ-235 sensitized TiO2 have been slightly increased to 1406 mol g(-1) h(-1) and 943 mol g(-1) h(-1), respectively. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：320 / 327

页数：8

共 57 条

[1] Effect of water/acetonitrile ratio on dye-sensitized photocatalytic H2 evolution under visible light irradiation [J].