Electronic structure and optical properties of V-doped Bi4Ti3O12 nanoparticles

被引：33

作者：

Gu, Daguo ^{[1
]}

Qin, Yingying ^{[1
]}

Wen, Yongchun ^{[1
]}

Li, Tie ^{[2
]}

Qin, Lin ^{[3
,4
]}

Seo, Hyo Jin ^{[3
,4
]}

机构：

[1] Yancheng Inst Technol, Sch Mat Engn, Yancheng 224051, Peoples R China

[2] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion SINANO, I Lab, 398 Ruoshui Rd, Suzhou 215123, Peoples R China

[3] Pukyong Natl Univ, Dept Phys, Busan 608737, South Korea

[4] Pukyong Natl Univ, Interdisciplinary Program Biomed Mech & Elect Eng, Busan 608737, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 695卷

基金：

中国博士后科学基金; 新加坡国家研究基金会;

关键词：

Inorganic compounds; Semiconductors; Photocatalysis; Band structure; Optical absorption and reflection; ENHANCED PHOTOCATALYTIC ACTIVITY; ROOM-TEMPERATURE; TIO2; PERFORMANCE; NANOSHEETS; OXIDE; MO;

D O I：

10.1016/j.jallcom.2016.11.071

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：

Pure and V5+-doped Bi4Ti3O12 (BTO) photocatalysts were prepared by sol-gel routine and subsequent hydrothermal synthesis. The samples were developed into the platelike microparticles with the exposed (001) facets. The crystalline phases were verified via the XRD measurement. The surface characteristics of the photocatalysts were studied by TEM, SEM, BET, EDX and XPS measurements. The UV-vis optical absorption spectra showed that the V-doped photocatalysts exhibit an obvious red shift in the visible light absorption band compared with the pure BTO. Rhodamine B (RhB) dye solution was used as the model organic pollutants to verify the influence of V-doping on the photocatalytic activity. The 10 mol % V-doped BTO showed efficient photocatalytic ability. The photocatalytic activities and mechanisms were discussed on the crystal structure characteristics and the measurements such as EES and XPS results. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：2224 / 2231

页数：8

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