Статья

Design of Carbon Quantum Dots/CdS/Ta3N5 S-Scheme Heterojunction Nanofibers for Efficient Photocatalytic Antibiotic Removal

Shijie LiKey Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, Zhejiang Province, ChinaKe RongKey Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, Zhejiang Province, ChinaXiaoqin WangKey Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, Zhejiang Province, ChinaChuqi ShenKey Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, Zhejiang Province, ChinaFang YangSchool of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaQinghong ZhangState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China

2024en

ABI

Аннотация

Photocatalytic pollutant removal provides a competitive manner for wastewater purification . The exploration of efficient and durable photocatalysts is significant for this technique. Integrating carbon quantum dots and S-scheme junction into one system represents an effective strategy for achieving the outstanding photocatalytic efficacy. In comparison to S-scheme junction, photocatalysts combining carbon quantum dots and S-scheme junction harness the merits of both, thus holding greater potential. Herein, a multicomponent fibrous photocatalyst of carbon quantum dots/CdS/Ta 3 N 5 that incorporates S-scheme heterojunction and carbon quantum dots is developed for high-efficient destruction of levofloxacin antibiotic . The as-prepared carbon quantum dots/CdS/Ta 3 N 5 heterojunction nanofibers manifest a significantly strengthened photocatalytic levofloxacin degradation activity, with the rate constant (0.0404 min −1 ) exceeding Ta 3 N 5 , CdS/Ta 3 N 5 , and CdS by 39.4, 2.1, and 7.2 folds. Such remarkable photocatalytic performance is credited to the unique 1D/0D/0D core-shell heterostructure with compact-bound hetero-interface, which favors the synergistic effect between carbon quantum dots modification and S-scheme junction. This work offers a new way for developing new Ta 3 N 5 -based heterojunctions for environmental remediation. A multicomponent fibrous photocatalyst of carbon quantum dots/CdS/Ta 3 N 5 that incorporates S-scheme heterojunction and carbon quantum dots is developed for high-efficient destruction of levofloxacin antibiotic.

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Идентификаторы

DOI: 10.3866/pku.whxb202403005

Цитирования и источники

Цитирований: 4Использованных источников: 0

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