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SiC nanomaterials with different morphologies for photocatalytic hydrogen production under visible light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
54830 47027 2013 5 PDF Available
Title
SiC nanomaterials with different morphologies for photocatalytic hydrogen production under visible light irradiation
Abstract

Nanostructured SiC was employed as the catalyst for photocatalytic hydrogen production from water splitting under visible light irradiation. The SiC materials with different morphologies (whiskery, worm-like and particulate) were prepared by the carbothermal reduction using different carbon and silica precursors. The photocatalytic hydrogen evolution was evaluated from pure water without any sacrificial agent. The results show that the SiC with different morphologies presents different photocatalytic hydrogen evolution performance. The average hydrogen evolution rates over the particulate and worm-like SiC are 83.9 μL/g h and 82.8 μL/g h, respectively, which are much higher than that over the SiC whiskers (45.7 μL/g h). The difference in the photocatalytic performance can be ascribed to the different specific surface areas and morphologies.

Graphical abstractSiC nanomaterials with different morphologies show various photocatalytic activity for splitting pure water under visible light irradiation.Figure optionsDownload full-size imageDownload high-quality image (97 K)Download as PowerPoint slideHighlights► SiC nanomaterials can split pure water into hydrogen under visible light irradiation. ► SiC nanomaterials with different morphologies show various photocatalytic activity. ► Worm-like SiC nanowires present stable and efficient photocatalytic activity.

Keywords
Photocatalysis; Hydrogen evolution; Water splitting; Nanostructured SiC; Visible light
First Page Preview
SiC nanomaterials with different morphologies for photocatalytic hydrogen production under visible light irradiation
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 212, 1 September 2013, Pages 220–224
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis