Fabrication of 1D/2D BiPO4/g-C3N4 heterostructured photocatalyst with enhanced photocatalytic efficiency for NO removal

被引：97
作者：
Wang, Xiaotian [1 ]
Ren, Yuyu [1 ]
Li, Yuan [1 ]
Zhang, Gaoke [1 ,2 ]
机构：
[1] Wuhan Univ Technol, Shenzhen Res Inst, State Key Lab Silicate Mat Architectures, Hubei Key Lab Mineral Resources Proc & Environm, 122 Luoshi Rd, Wuhan 430070, Peoples R China
[2] Zhengzhou Univ, Henan Inst Adv Technol, Zhengzhou 450052, Peoples R China
来源：
CHEMOSPHERE | 2022年 / 287卷
基金：
中国国家自然科学基金;
关键词：
BiPO4; G-C3N4; Heterostructured photocatalysts; NO removal; In situ DRIFTS; SELECTIVE CATALYTIC-REDUCTION; VISIBLE-LIGHT; CARBON NITRIDE; BIPO4; HETEROJUNCTION; MECHANISM; DEGRADATION; OXIDATION; NITROGEN; PATHWAY;
D O I：
10.1016/j.chemosphere.2021.132098
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The visible light photocatalytic removal of NO in air is a promising way. BiPO4 is restricted by its wide band gap and can only be responded to ultraviolet light. Herein, 1D BiPO4 nanorod/2D g-C3N4 heterostructured photo catalyst was successfully synthesized via a facile one-step hydrothermal process for efficient visible light photocatalytic removal of NO. With simulated sunlight irradiation, the photocatalytic NO removal activity of the BiPO4/g-C3N4 (64%) is much higher than that of the pure BiPO4 (7.2%) and g-C3N4 (50%). Its excellent photocatalytic performance was ascribed to broadening the light response range to visible light and boosting the separation and transfer of photogenerated electrons and holes. The NO photocatalytic removal mechanism was proposed by the free radical trapping experiment and in situ DRIFTS research. The present study might induce a new means to design BiPO4-based heterostructured photocatalysts for the removal of NO from air pollution under simulated solar light irradiation.
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页数：10
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