首页|Enhanced photocatalytic performance of S-scheme CdMoO4/CdO nanosphere photocatalyst

Enhanced photocatalytic performance of S-scheme CdMoO4/CdO nanosphere photocatalyst

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The photoabsorption capacity,the number of active sites,and the efficiency of carrier separation of photo-catalysts are the main factors that restrict photocatalytic activity.Accordingly,a series of novel CdO-based S-scheme photocatalysts are prepared by a facile one-step precipitation-calcination method for the first time.Although CdO with a narrow band gap has no photocatalytic hydrogen evolution performance,the CdMoO4/CdO composite exhibits excellent photocatalytic activity.The photocatalytic hydrogen evolution(PHE)performance of the optimal ratio(3∶4)is up to 7029 μmol g-1 h-1 under visible light irradiation.At the same time,the CdMoO4/CdO composite also shows excellent degradation activity of water pollu-tants,and the degradation efficiency for Tetracycline hydrochloride,Oxytetracycline,Norfloxacin,Reactive red 2,and Levofloxacin is 96.33％,95.38％,88.48％,95.93％,and 77.30％under visible light irradiation for 90min,respectively.According to the experimental characterization and theoretical calculation analysis,the introduction of CdMoO4 can be used to construct S-scheme heterojunction with CdO,improving the efficiency of charge separation as well as taking full advantage of redox ability,and hence improving su-perior photocatalysts performance.This work affords new insights into efficient PHE and antibiotic/dye degradation of CdO-based S-scheme photocatalysts.

CdMoO4CdOS-scheme heterojunctionHydrogen evolutionAntibiotics degradation

Zhe Chen、Tinglin Ma、Zongjun Li、Wenjing Zhu、Lingling Li

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School of Material Science and Technology,Jilin Institute of Chemical Technology,Jilin 132022,China

National Natural Science Foundation of ChinaEducation Department Project of Jilin ProvinceEducation Department Project of Jilin Province

22278172YDZJ202201ZYTS59120210509049RQ

2024

10.1016/j.jmst.2023.07.029

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.179(12)
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