光催化
二苯并噻吩
异质结
烟气脱硫
材料科学
聚吡咯
表面等离子共振
化学工程
光电子学
纳米技术
光化学
化学
纳米颗粒
催化作用
聚合
工程类
复合材料
聚合物
有机化学
作者
Chenchao Hu,Jie Yin,Suhang Xun,Linhua Zhu,Hongping Li,Minqiang He,Peiwen Wu,Huaming Li,Wenshuai Zhu
标识
DOI:10.1016/j.apcatb.2024.124155
摘要
Construction of photocatalyst that combines excellent electron transfer and photoresponse capabilities to enhance photocatalytic performance remains a challenging task. In this work, interfacial Mo-N bonds and vacancy engineering collaborative modified MoO3-x@polypyrrole (MP) S-scheme heterojunction is rational designed for efficient photocatalytic oxidative desulfurization. The addition of polypyrrole introduce rich defects which inducing the localized surface plasmon resonance (LSPR) effect and enhancing light absorption. Furthermore, the combination facilitates the formation of Mo-N bonds. The modifications amplify the built-in electric field and conduct the efficacious separation of photogenerated carriers. With the synergism of LSPR effect and interfacial chemical Mo-N bonds, the optimal MP photocatalyst displays attractive desulfurization rate of 100% for dibenzothiophene (DBT) in 60 min under illumination, touching the objective of ultra-deep desulfurization. The study extends a novel understanding of the impact of LSPR effect and heterojunction interface charge transfer on the photocatalytic desulfurization ability.
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