【摘 要】
：
Low dimension nano photocatalysts show great potential in the field of treating contaminated water for their large surface area and size effect.In this study,a 0D/1D AgI/MoO3 Z-scheme photocatalyst with striking photocatalytic performance was constructed
【机 构】
：
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Edu
论文部分内容阅读
Low dimension nano photocatalysts show great potential in the field of treating contaminated water for their large surface area and size effect.In this study,a 0D/1D AgI/MoO3 Z-scheme photocatalyst with striking photocatalytic performance was constructed successfully.The one-dimensional MoO3 nanobelts were prepared by a simple hydrothermal method,and then it was modified by AgI nanoparticles in a handy deposition approach.When choosing sulfamethoxazole (SMZ) as the target contaminant,the rate constant value of the optimal 0D/1D AgI/MoO3 composite could hit up to 0.13 min-1,which is nearly 22.4 times and 32.5 times as that of pure MoO3 (0.0058 min-1) and AgI (0.0040 min-1),respectively.A series of detailed characterizations give evidences that the charge transfer in the composite followed Z scheme mechanism.Therefore,efficient separation/transfer and the remained high redox activity of photo-generated carriers played a vital role in the sharply enhanced photocatalytic properties.The possible degradation pathways of SMZ were proposed based on the intermediates detected by high-performance liquid chromatography-mass spectrometry (HPLC-MS).Meanwhile,the magnificent cyclic stability makes the material a promising material in the practical application.
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