Cu2O clusters grown on TiO2 nanoplates as efficient photocatalysts for hydrogen generation

Zhao, Kun and Zhao, Shenlong and Qi, Jian and Yin, Huajie and Gao, Chao and Khattak, Abdul Muqsit and Wu, Yijin and Iqbal, Azhar and Wu, Lei and Gao, Yan and Yu, Ranbo and Tang, Zhiyong (2016) Cu2O clusters grown on TiO2 nanoplates as efficient photocatalysts for hydrogen generation. Inorganic Chemistry Frontiers, 3 (4). pp. 488-493. ISSN 2052-1545

Abstract

Conversion of solar energy into chemical energy in the form of so-called “solar fuels”, e.g., hydrogen, methane etc., is considered as one of the most promising methods to solve the future energy and environment challenges. Herein, ultrafine Cu2O clusters are in situ uniformly grown on the surface of TiO2 nanoplates (Cu2O/TiO2) via a one-pot hydrothermal method. The morphology and structure of Cu2O/TiO2 products are investigated by different characterization techniques. Furthermore, a detailed study on photocatalytic hydrogen generation demonstrates that the charge transfer of TiO2 with Cu2O loading is significantly accelerated, leading to high charge separation efficiency. Impressively, Cu2O/TiO2 exhibits superior catalytic activity towards water reduction, which is even higher than that of TiO2 loaded with noble metal Au nanoparticles. The strategy, facilitating charge transfer by construction of a heterojunction interface with cheap transition metal oxides, will offer the opportunity toward practical application of nanomaterials in energy conversion.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 18 Sep 2017 00:00
Last Modified: 07 Feb 2018 01:03
Uncontrolled Keywords: conversion; solar energy; chemical energy; “solar fuels”; ultrafine Cu2O clusters; TiO2; nanoplates; one-pot hydrothermal method; morphology; structure; characterization techniques; photocatalytic hydrogen generation ; separation efficiency; catalytic activity; nanoparticles; energy conversion
Fields of Research : 09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030601 Catalysis and Mechanisms of Reactions
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030302 Nanochemistry and Supramolecular Chemistry
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970105 Expanding Knowledge in the Environmental Sciences
E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1039/C5QI00284B
URI: http://eprints.usq.edu.au/id/eprint/31935

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