Construction of Ag SPR-Promoted S-Scheme SnNb2O6/Ag3PO4 Heterostructure for Enhanced Visible-Light-Driven Photocatalytic Activity

被引：0
|
作者：
Dai K. [1 ]
Zhang H. [1 ]
Zhang J. [1 ]
Wang Z. [1 ]
机构：
[1] Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2023年 / 51卷 / 01期
关键词：
Carrier separation; Photocatalytic degradation; Step-scheme; Surface plasmon resonance;
D O I：
10.14062/j.issn.0454-5648.20220314
中图分类号：
学科分类号：
摘要：
Ag surface plasmon resonance promoted step-scheme (S-scheme) SnNb2O6/Ag3PO4 heterojunctions were constructed via simple chemical deposition andprecipitation. The samples were characterized by X-ray diffractometer, field-emission scanning electron microscope, high resolution transmission electron microscope, X-ray photoelectron spectrometer, UV-Vis diffuse reflectance spectrometer and photoluminescence spectrometer. The photocatalytic activities of SnNb2O6, Ag3PO4 and SnNb2O6/Ag3PO4 composites can be determined via degradation experiments. The results show that the SnNb2O6/Ag3PO4 composite possesses an optimum degradation performance in the photocatalytic degradation of methylene blue. Besides, the pseudo-first-order rate constant (Kapp) of SnNb2O6/Ag3PO4 is 0.313 min-1, which is 13.1 times and 4.8 times greater than that of SnNb2O6 and Ag3PO4, respectively. Also, Ag surface plasmon resonance-promoted SnNb2O6/Ag3PO4S-scheme heterojunction can accelerate the separation of electron-hole pairs, thereby enhancing the redox reaction capability of the whole system. © 2023, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：23 / 31
页数：8
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