Solvothermal-Assisted Synthesis of Biomass Carbon Quantum Dots/Bismuth Oxyiodide Microflower for Enhanced Photocatalytic Activity

被引：15
作者：
Yao, Xin [1 ]
Ma, Changchang [2 ]
Huang, Hai [1 ]
Zhu, Zhi [1 ]
Dong, Hongjun [1 ]
Li, Chunxiang [1 ]
Zhang, Wenli [1 ]
Yan, Yongsheng [1 ]
Liu, Yang [3 ]
机构：
[1] Jiangsu Univ, Sch Chem & Chem Engn, Inst Green Chem & Chem Technol, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang 212013, Peoples R China
[3] Jilin Normal Univ, Dept Phys, Siping 136000, Peoples R China
来源：
NANO | 2018年 / 13卷 / 03期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
BiOI; biomass CQDs; photocatalyst; methylene blue; BISMUTH OXYIODIDE; SEPARATION EFFICIENCY; DOTS; WATER; TIO2; HETEROJUNCTION; DEGRADATION; PERFORMANCE; DYE; NANOCOMPOSITE;
D O I：
10.1142/S1793292018500315
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper, the biomass carbon quantum dots (CQDs) modified flower-like BiOI (CQDs/BiOI) composite photocatalyst was synthesized by a facile solvothermal method. Compared with the pristine BiOI, the biomass CQDs/BiOI exhibited outstanding photocatalytic activity for degradation of the typical methylene blue (MB) under visible light irradiation since the biomass CQDs could act as electron acceptors to effectively facilitate the separation effciency of photon-generated carriers and prolong their lifetime. Furthermore, the mechanism detection experiment showed that the center dot O-2(-) and H+ were major activity species, and the photocatalytic electron transfer mechanism was further investigated. This work provided a new insight into biomass CQDs effects and took an important step toward the development of improving Bi-based semiconductor photocatalyst activity.
引用
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页数：11
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