Porous TiB2-TiC/TiO2 heterostructures: Synthesis and enhanced photocatalytic properties from nanosheets to sweetened rolls

被引：29

作者：

Guo, Xueqi ^{[1
]}

Zhang, Guosong ^{[1
]}

Cui, Honghi ^{[1
]}

Wei, Na ^{[1
]}

Song, Xiaojie ^{[1
]}

Li, Jian ^{[1
]}

Tian, Jian ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 217卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Photocatalytic; Porous TiB2-TiC; TiO2; heterostructure; Sweetened roll; ANATASE TIO2 MICROSPHERES; EXPOSED; 001; FACETS; DEGRADATION; DYE; FILMS; NANOPARTICLES; PERFORMANCE; COMPOSITES; GROWTH; PORE;

D O I：

10.1016/j.apcatb.2017.05.079

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：

Exposing high surface areas with porous materials and assembling heterostructures with chemical element doping represent a useful approach to producing high-performance photocatalysts. Porous TiB2-TiCiTiO(2) heterostructure, a new three-dimensional (3D) porous material with carbon and boron elements, was prepared in this study via alkali-assisted hydrothermal method followed by the in situ growth of porous TiB2-TiC material. The samples as-formed contain a wide variety of morphologies from nanosheet to sweetened roll, and exhibit dramatically enhanced photocatalytic activity for the degradation of methyl orange and rhodamine B compared to pure porous TiB2-TiC materials. The mechanisms for heterostructure formation and photocatalytic effect are analyzed to find that the heterostructures enhanced the separation of the photoinduced carriers, and that the morphological features of TiB2-TiC/TiO2 heterostructures exert a significant influence on the photocatalytic degradation of organic pollutants. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：12 / 20

页数：9

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