文献类型：期刊文献

英文题名：Preparation and enhanced visible light-driven catalytic activity of ZnO microrods sensitized by porphyrin heteroaggregate

作者：Li, Xiangqing[1];Cheng, Ying[2];Kang, Shizhao[1];Mu, Jin[2]

机构：[1]Shanghai Inst Technol, Dept Chem Engn, Lab New Energy Mat, Shanghai 200235, Peoples R China;[2]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：256

期号：22

起止页码：6705

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20103313160651);WOS:【SCI-EXPANDED(收录号:WOS:000278908900037)】；

基金：This work was financially supported by the Key Discipline Development Program of Shanghai Municipal Education Commission (No. J51503).

语种：英文

外文关键词：Porphyrin heteroaggregate; ZnO; Composite; Photocatalysis

摘要：An inorganic-organic composite (ZnO/TAPPI-CoTPPS) composed of ZnO microrods and nano-heteroaggregates containing tetrakis(4-trimethylaminophenyl) porphyrin (TAPPI) and tetrakis(4-sulfonatophenyl) porphyrin cobalt(II) (CoTPPS), has been achieved by a simple mixing method. From the solid diffuse reflectance UV-vis spectrum of ZnO/TAPPI-CoTPPS, it can be observed that the Soret band of the porphyrin heteroaggregate of ZnO/TAPPI-CoTPPS is blue-shifted in comparison with that of the pure TAPPI-CoTPPS heteroaggregate while the Q bands are red-shifted, which demonstrates that there exists some interaction between the porphyrin heteroaggregate and ZnO. In addition, the photodegradation of rhodamine B (RhB) in water catalyzed by ZnO/TAPPI-CoTPPS was investigated at room temperature. Under visible light irradiation (lambda >= 420 nm), the photocatalytic activity of the ZnO/TAPPI-CoTPPS composite was higher than those of the porphyrin monomers modified ZnO composite and pure ZnO. (C) 2010 Elsevier B.V. All rights reserved.