Synthesis and characterization of porous platelet-shaped α-Bi2O3 with enhanced photocatalytic activity for 17α-ethynylestradiol

被引：33

作者：

Shi, Yingying ^{[1
]}

Luo, Lijun ^{[2
]}

Zhang, Yefei ^{[1
]}

Chen, Yu ^{[1
]}

Wang, Shan ^{[1
]}

Li, Lingxin ^{[1
]}

Long, Yanju ^{[1
]}

Jiang, Fengzhi ^{[1
]}

机构：

[1] Yunnan Univ, Sch Chem Sci & Technol, Kunming 650091, Yunnan, Peoples R China

[2] Yunnan MinZu Univ, Sch Chem & Biotechnol, Engn Lab Polylact Acid Based Funct Mat Yunnan Pro, Kunming 650500, Yunnan, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2018年 / 53卷 / 02期

基金：

中国国家自然科学基金;

关键词：

VISIBLE-LIGHT; HYDROTHERMAL METHOD; DEGRADATION; FABRICATION; EE2; NANOPARTICLES; MICROSPHERES; PERFORMANCE; SURFACTANT;

D O I：

10.1007/s10853-017-1553-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The porous platelet-shaped alpha-Bi2O3 photocatalyst was successfully synthesized by a novel hydrothermal-calcination method assisted with ethylenediamine and polyvinylpyrrolidone. The physical and chemical properties of alpha-Bi2O3 photocatalyst were characterized based on XRD, XPS, SEM, TEM, EDS, UV-Vis DRS, and PL techniques. The influence of preparation conditions on the formation of alpha-Bi2O3 photocatalyst was investigated, and the effect of catalyst dosage and pH value on the EE2 removal rate was also investigated. The synthesized porous platelet-shaped alpha-Bi2O3 photocatalyst exhibited excellent photocatalytic activity for 17 alpha-ethynylestradiol (EE2), and 97.8% of EE2 was removed after 75 min of visible light irradiation using alpha-Bi2O3 as photocatalyst. The reaction rate constant over the porous platelet-shaped alpha-Bi2O3 photocatalyst was 11.6 and 11.4 times of that of traditional alpha-Bi2O3 and N-TiO2, respectively. The possible photocatalytic mechanism has been discussed on the basis of the theoretical calculation and the experimental results. The porous platelet-shaped alpha-Bi2O3 was a stable and efficient photocatalyst, proving that it is a promising photocatalyst.

引用

页码：1049 / 1064

页数：16

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