Visible-light-driven CeO2/black phosphorus heterostructure with enhanced photocatalytic performance

被引：15

作者：

He, Chengli ^{[1
]}

Qian, Heming ^{[1
]}

Li, Xiazhang ^{[1
,2
]}

Yan, Xiangyu ^{[1
]}

Zuo, Shixiang ^{[1
]}

Qian, Junchao ^{[3
]}

Chen, Qun ^{[1
]}

Yao, Chao ^{[1
]}

机构：

[1] Changzhou Univ, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Peoples R China

[2] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA

[3] Suzhou Univ Sci & Technol, Jiangsu Key Lab Environm Funct Mat, Suzhou 215009, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 01期

基金：

美国国家科学基金会;

关键词：

BLACK PHOSPHORUS; HIGHLY EFFICIENT; NANOPARTICLES; CONSTRUCTION; NANOSHEETS;

D O I：

10.1007/s10854-018-0325-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

CeO2/black phosphorus (BP) heterostructure nanocomposite was synthesized via a two-step assembly method. The structure and optical property of the prepared composites were characterized by X-ray diffraction, transmission electron microscopy, UV-Vis diffuse reflectance spectroscopy (UV-Vis), Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Photocatalytic degradation of bisphenol A (BPA) in simulated waste water was performed by using CeO2/BP nanocomposite as catalyst. Results indicated that the degradation rate of BPA reached 82.3% within 180min, which was remarkably improved compared with pure CeO2 and BP due to the formation of indirect Z-scheme heterostructure intermediated by oxygen vacancies originated from CeO2. The unique heterostructure facilitated the charge transfer and preserved the high redox potential leading to improve the photocatalytic degradation performance.

引用

页码：593 / 599

页数：7

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