Building P-doped MoS2/g-C3N4 layered heterojunction with a dual-internal electric field for efficient photocatalytic sterilization
Building P-doped MoS2/g-C3N4 layered heterojunction with a dual-internal electric field for efficient photocatalytic sterilization
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构建具有双内电场的磷掺杂MoS2/g-C3N4层状异质结以实现高效光催化灭菌
DOI：
10.1016/j.cej.2021.132588
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发表时间：
2022-02
影响因子：
15.1
通讯作者：
Yongsheng Yu
中科院分区：
文献类型：
--
作者：
Xin Zhang;Fenyang Tian;Xiao Lan;Yequn Liu;Weiwei Yang;Jie Zhang;Yongsheng Yu
内电场（IEF）的构建通常被认为是提高光催化效率的有效策略，因为它在光致载流子分离中发挥着重要作用。在此，我们报告了一种合成磷掺杂（P掺杂）MoS2/g-C3N4逐层复合材料的新方法，该复合材料可以暴露更多的活性位点，并通过形成Mo-N键产生强相互作用，用于光催化灭菌。实验和理论证实，P掺杂MoS2/g-C3N4异质结不仅产生双等电势驱动电荷迁移，而且有利于空间分离的氧化还原位点，进一步促进光生载流子的分离。优化的P掺杂MoS2/g-C3N4层状异质结对大肠杆菌表现出高光催化灭菌效率（99.99%）。在可见光照射下，其显着高于P掺杂g-C3N4（44.73％）和P掺杂MoS2（61.69％）。这项研究将为设计和合成具有双 IEF 的层状复合光催化剂提供一种新方法，以实现有效的光催化灭菌。
The construction of internal electric field (IEF) is usually considered an effective strategy to enhance photocatalytic efficiency because of its significant role in photo-induced carrier separation. Herein, we report a novel method to synthesize phosphorus-doped (P-doped) MoS2/g-C3N4layer-by-layer composite, which could expose more active sites and generate a strong interaction by forming Mo-N bonds for photocatalytic sterilization. It is experimentally and theoretically confirmed that P-doped MoS2/g-C3N4heterojunctions not only generate a dual-IEF to drive charge migration, but also facilitate spatially separated redox sites to further promote the separation of photo-induced carrier. The optimized P-doped MoS2/g-C3N4layered heterojunction exhibits high photocatalytic sterilization efficiency (99.99%) towardsE. coliunder visible-light irradiation, which is remarkably higher compared with those of P-doped g-C3N4(44.73%) and P-doped MoS2(61.69%), respectively. This research will offer a novel method of designing and synthesizing layered composite photocatalyst with a dual-IEF for effective photocatalytic sterilization.
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影响因子：
15.1
作者：
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通讯作者：
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影响因子：
6.7
作者：
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通讯作者：
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影响因子：
15.1
作者：
Chen, Yanli;Su, Fengyun;Ye, Liqun
通讯作者：
Ye, Liqun
DOI：
10.1016/j.colsurfa.2020.124668
发表时间：
2020-06
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
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通讯作者：
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影响因子：
22.1
作者：
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通讯作者：
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