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Preparation of g-C3N4/Bi2WO6 Composite Photocatalyst and Its Catalytic Reduction of Cr(Ⅵ)
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Yuxin QIN1, Yuxin ZHA1, Xinyu HE1, Xiaozhou SHI2, Lin CHEN3, Guozhuang CHEN1, Yue MA1, Bingrui MA1, Jincheng LI1
Hydrometallurgy of China | 2025, 44(1) : 100 - 110
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Hydrometallurgy of China | 2025, 44(1): 100-110
• Experiment Research •
Preparation of g-C3N4/Bi2WO6 Composite Photocatalyst and Its Catalytic Reduction of Cr(Ⅵ)
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Yuxin QIN1, Yuxin ZHA1, Xinyu HE1, Xiaozhou SHI2, Lin CHEN3, Guozhuang CHEN1, Yue MA1, Bingrui MA1, Jincheng LI1
Affiliations
  • 1 School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
  • 2 Dezhou Zhanquan Water Supply Engineering Design Co., Ltd., Dezhou 253000, China
  • 3 Qingdao Yinhuang Jiqing Water Co., Ltd., Qingdao 266000, China
Published: 2025-02-28 doi: 10.13355/j.cnki.sfyj.2025.01.014
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The g-C3N4/Bi2WO6 composite photocatalyst was prepared by hydrothermal method, and its properties and mechanism for Cr(Ⅵ) reduction were studied under visible light. The results show that g-C3N4/Bi2WO6 is a petaloid structure composed of nanosheets with larger surface area than the single g-C3N4 and Bi2WO6, which can provide more active sites for photocatalytic reaction. The adsorption efficiency of g-C3N4/Bi2WO6 for Cr(Ⅵ) is 43.2% under 40 min dark condition, and the adsorption behavior is consistent with the quasi-second-order kinetic model. After 100 min of visible light irradiation, the photocatalytic reduction rate of g-C3N4/Bi2WO6 for Cr(Ⅵ) is 81.3%, and the photocatalytic reduction process is consistent with the quasi-first-order kinetic model. After the combination of g-C3N4 and Bi2WO6, forms a Z-scheme heterojunction, which broadens the light absorption range and promots the separation of photogenerated electron-hole, thus showing excellent visible light catalytic activity.

composite photocatalyst  /  reduction  /  g-C3N4/Bi2WO6  /  preparation  /  Cr(Ⅵ)  /  Z-scheme heterojunction  /  hydrothermal method
Yuxin QIN, Yuxin ZHA, Xinyu HE, Xiaozhou SHI, Lin CHEN, Guozhuang CHEN, Yue MA, Bingrui MA, Jincheng LI. Preparation of g-C3N4/Bi2WO6 Composite Photocatalyst and Its Catalytic Reduction of Cr(Ⅵ)[J]. Hydrometallurgy of China, 2025 , 44 (1) : 100 -110 . DOI: 10.13355/j.cnki.sfyj.2025.01.014
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Year 2025 volume 44 Issue 1
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doi: 10.13355/j.cnki.sfyj.2025.01.014
  • Receive Date：2024-06-11
  • Online Date：2025-07-05
  • Published：2025-02-28
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  • Received：2024-06-11
Affiliations
    1 School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
    2 Dezhou Zhanquan Water Supply Engineering Design Co., Ltd., Dezhou 253000, China
    3 Qingdao Yinhuang Jiqing Water Co., Ltd., Qingdao 266000, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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