Hydrogen photoproduction on TiO2-reduced graphene oxide hybrid materials from water-ethanol mixture

被引：11
|
作者：
Serafin, Jaroslaw [1 ,2 ]
Kusiak-Nejman, Ewelina [3 ]
Wanag, Agnieszka [3 ]
Morawski, Antoni W. [3 ]
Llorca, Jordi [1 ,2 ]
机构：
[1] Univ Politecn Cataluna, EEBE, Inst Energy Technol, Dept Chem Engn, Eduard Maristany 10-14, Barcelona 08019, Spain
[2] Univ Politecn Cataluna, EEBE, Barcelona Res Ctr Multiscale Sci & Engn, Eduard Maristany 10-14, Barcelona 08019, Spain
[3] West Pomeranian Univ Technol, Dept Chem & Environm Engn, Fac Chem Technol & Engn, Pulaskiego 10, PL-70322 Szczecin, Poland
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2021年 / 418卷
关键词：
Hydrogen production; Photocatalysis; Photoreactor; Titanium dioxide; rGO; PHOTOCATALYTIC ACTIVITY; TIO2; NANOPARTICLES; H-2; PRODUCTION; NANOCOMPOSITES; COMPOSITES; NANOMATERIALS; CALCINATION; CATALYSTS; REMOVAL;
D O I：
10.1016/j.jphotochem.2021.113406
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：
Titanium dioxide mixed with reduced graphene oxide (rGO) has been tested in the photoproduction of hydrogen using UV light from water-ethanol combination in gas phase. The presence of the reduced graphene oxide in TiO2/rGO nanocomposites affects the physicochemical properties of hybrid materials, thus enhancing the photocatalytic activity. The obtained catalysts have been characterized for physical-chemical properties using X-ray diffraction (XRD), UV-vis spectroscopy, Raman spectroscopy, transmission electron microscopy (TEM)/highresolution transmission electron microscopy (HRTEM), and Brauner Emmett Teller (BET). The best photocatalyst has been obtained by mixing anatase and rGO (10 wt%) after calcination at 700 degrees C. This TiO2-rGO composite exhibited the highest performance with a hydrogen photogeneration rate of 9.5 mmol h-1 g-1.
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页数：7
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