کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
13415862 | 1841313 | 2020 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Artificial all-solid-state system by RGO bridged Cu2O and Bi2WO6 for Z-scheme H2 production and tetracycline degradation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
With the development of visible-light-driven photocatalytic systems, the Z-scheme system has been paid more attention for water-splitting and contaminants degradation in an effort to the full utilization of superior band potential between two different semiconductors. Here we present systemic investigation of the reduced graphene oxide (RGO)-based composites, including RGO-Cu2O, RGO-Bi2WO6, RGO-Cu2O/Bi2WO6, Cu2O/Bi2WO6 heterojunction and physical mixed RGOâ¯+â¯Cu2Oâ¯+â¯Bi2WO6, to give a clear demonstration of the Z-scheme photocatalytic mechanism. The three-component RGO-Cu2O/Bi2WO6 composite showed the highest photocatalytic activity on water splitting, which is about 3 times and 4 times that of RGO-Cu2O and Cu2O respectively. And it also exhibited an excellent photocatalytic performance with a 86% degradation rate for tetracycline that is about 3 (6) times as high as that of pure Cu2O (Bi2WO6). These results demonstrate that the construction of RGO-Cu2O/Bi2WO6 Z-scheme system is beneficial to water splitting and pollutant degradation for which the superior band potential of Cu2O and Bi2WO6 are fully utilized. This work not only reports a new Z-scheme system of RGO-Cu2O/Bi2WO6 but also provides a guide to the design of RGO-based photocatalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 259, 1 January 2020, 116311
Journal: Fuel - Volume 259, 1 January 2020, 116311
نویسندگان
Hongqiang Shen, Guiwu Liu, Yong Zhao, Di Li, Jinhui Jiang, Jinrui Ding, Baodong Mao, Hao Shen, Kyo-Seon Kim, Weidong Shi,