Enhance photocatalytic properties of TiO2 using π-π* conjugate system

被引：10
作者：
Gao, Hejun [1 ,2 ]
Cai, Minghan [1 ]
Liao, Yunwen [1 ,3 ]
机构：
[1] China West Normal Univ, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637000, Peoples R China
[2] China West Normal Univ, Inst Appl Chem, Nanchong, Peoples R China
[3] China West Normal Univ, Coll Environm Sci & Engn, Nanchong, Peoples R China
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2019年 / 40卷 / 10期
关键词：
Conjugate system; TiO2; photocatalyst; methyl orange; rhodamine B; CHEMICAL OXIDATIVE POLYMERIZATION; ONE-POT SYNTHESIS; VISIBLE-LIGHT; FACILE SYNTHESIS; 001; FACETS; COMPOSITE; NANOCOMPOSITES; POLYANILINE; STABILITY; REMOVAL;
D O I：
10.1080/01932691.2018.1518143
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 novel pi-pi* conjugate system photo-catalyst was successfully constructed using aniline, pyrrole and TiO2. The structures of photo-catalyst were measured by XRD, SEM, BET, TEM, FT-IR, XPS and TGA in detail. The photocatalytic properties were investigated in rhodamine B and methyl orange solution, respectively. And the enhance mechanism of pi-pi* conjugate system was discussed in depth. The weight percentage of Ti weight about 47% in the compound and the pi-pi* conjugate system did not change the crystal structure of TiO2. The photocatalytic degradation properties of the pi-pi* conjugate system photo-catalyst could get 99% for rhodamine B and methyl orange after 10 and 15 min, respectively. The introduction of the pi-pi* conjugate system into TiO2 was beneficial to improve light harvest, photoelectric response and separation of electron-holes.
引用
收藏
页码：1469 / 1478
页数：10
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