Composites between photoactive anatase-type TiO2 and adsorptive carbon

被引：150

作者：

Tsumura, T

Kojitani, N

Umemura, H

Toyoda, M

Inagaki, M ^{[1
]}

机构：

[1] Aichi Inst Technol, Fac Engn, Toyota 4700392, Japan

[2] NARD Inst Co Ltd, Amagasaki, Hyogo 6600805, Japan

[3] Fukui Natl Coll Technol, Geshi, Sabae 916857, Japan

来源：

APPLIED SURFACE SCIENCE | 2002年 / 196卷 / 1-4期

关键词：

composite materials; anatase; TiO2; photocatalytic activity; carbon coating; TiO2-mounting; exfoliated graphite;

D O I：

10.1016/S0169-4332(02)00081-8

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：

Two composites between anatase-type TiO2 and carbon were prepared, i.e. carbon-coated TiO2 and TiO2-mounted exfoliated graphite. Carbon-coated TiO2 shows effective photocatalytic activity for methylene blue (MB) decomposition. Carbon layer coated on TiO2 particle was experimentally proved to adsorb methylene blue from its aqueous solution and transfer it to TiO2 surface to decompose photocatalytically. Carbon coating was found to stabilize anatase-type structure at high temperatures and, as a consequence, high crystallinity of anatase could be obtained, which had high activity. TiO2-mounted exfoliated graphite could work as the absorbent of heavy oil and also as the catalyst for the decomposition of absorbed heavy oil under UV irradiation. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：429 / 436

页数：8

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