Enhanced hydrogen production over CdSe QD/ZTP composite under visible light irradiation without using co-catalyst

被引：24

作者：

Biswal, Niranjan ^{[1
]}

Parida, K. M. ^{[1
]}

机构：

[1] CSIR Inst Minerals & Mat Technol, Colloids & Mat Chem Dept, Bhubaneswar 751013, Odisha, India

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 03期

关键词：

CdSe QD; CdSe QD/ZTP composite; Visible light irradiation; Photosensitization effect; Hydrogen energy; ZIRCONIUM-TITANIUM PHOSPHATE; SENSITIZED SOLAR CELLS; PHOTOCATALYTIC PROPERTIES; SEMICONDUCTOR NANOCRYSTALS; QUANTUM DOTS; WATER; GENERATION; ENERGY; OXIDE; SIZE;

D O I：

10.1016/j.ijhydene.2012.11.001

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 series of CdSe quantum dot (QD)/zirconium titanium phosphate (ZTP) was synthesized by solvothermal method using ethylene diamine by varying Cd to Se ratio from 1:1 to 1:4 and examined as robust catalysts for hydrogen evolution under visible light irradiation without using any co-catalyst. Extensively, the structural, optical, morphological, elemental and photoresponse spectra measurement of the composite system was studied. The catalytic activity of the materials was correlated with photoluminescence spectra, band gap energy and the photosensitization effect of CdSe quantum dot. Though neat CdSe quantum dot and zirconium titanium phosphate (ZTP) exhibited photocatalytic hydrogen evolution, the composite material showed remarkable high activity. Among these, 1CdSe quantum dot/zirconium titanium phosphate (ZTP) composite showed the highest hydrogen production (905.4 mu mol) within 3 h which is consistent with low photoluminescence (PL) intensity, wide band gap energy and the photosensitization effect of CdSe quantum dot. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1267 / 1277

页数：11

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