3D g-C3N4/WO3/biochar/Cu2+-doped carbon spheres composites: Synthesis and visible-light-driven photocatalytic hydrogen production

被引：18
作者：
Zhou, Yunlong [1 ]
Sun, Meng [1 ]
Yu, Teng [1 ]
Wang, Jian [1 ]
机构：
[1] Northeast Elect Power Univ, Sch Energy & Power Engn, Jilin, Jilin, Peoples R China
来源：
MATERIALS TODAY COMMUNICATIONS | 2022年 / 30卷
关键词：
G-C3N4/WO3/biochar/Cu2+-doped carbon spheres; Visible-light photocatalysts; Hydrogen production; Cocatalyst; FACILE FABRICATION; GRAPHENE OXIDE; WO3; CONSTRUCTION; DEGRADATION; GLUCOSE; HOLLOW; WATER; PHOTODEGRADATION; NANOCOMPOSITES;
D O I：
10.1016/j.mtcomm.2021.103084
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High surface activity and high-efficiency 3D g-C3N4/WO3/biochar/Cu-2(+)-doped carbon spheres (CWB-CuCs) were prepared by a facile one-pot heating method for use as composite photocatalysts. The photocatalysts were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, UV-vis diffuse reflectance spectroscopy. The photoelectric properties and mechanism of the photocatalysts were analyzed. The CWB-CuCsphotocatalyst with 40 wt% CuCs showed excellent photocatalytic performance for hydrogen generation (about 6 times better than that of pure g-C3N4). This phenomenon was mainly due to a Z-scheme heterojunction in the biochar between the g-C3N4 and WO3. The synergy between the g-C3N4/WO3 and CuCs (acting as cocatalysts) increased the electron transfer rate and increased the photocatalytic performance of the composite.
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页数：12
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