| 高效三相光催化剂BiVO4@C3N4@GO的制备及性能研究 |
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| 引用本文： | 柳艳修,郭智,王立娟,吕文学,宋华,王雪芹.高效三相光催化剂BiVO4@C3N4@GO的制备及性能研究[J].中国炼油与石油化工,2019,21(2):50-57. |
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| 作者姓名： | 柳艳修 郭智 王立娟 吕文学 宋华 王雪芹 |
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| 作者单位： | 1. 东北石油大学;2. 东北石油大学化学化工工学院;3. 中国石油大庆化工研究中心;4. 大庆石化公司化工二厂造气丁辛醇车间;5. 东北石油大学化学化工学院; |
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| 摘 要： | NBiVO4, BiVO4@C3N4 and BiVO4@C3N4@GO composite photocatalysts were synthesized, and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer(EDS), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), Fourier Transform Infrared Spectroscopy(FT-IR), and Brunauer-Emmett-Teller (BET) surface area techniques. The photocatalytic activity was evaluated for the degradation of the methylene blue (MB) under visible light irradiation and BiVO4@C3N4@GO ternary composite outperformed the binary composites, BiVO4@C3N4 and BiVO4. Then the effects of catalyst dosage, initial pH, and initial methylene blue concentration on degradation process were investigated systematically. The improvement of visible-light photocatalytic degradation performance was attributed to the enhanced visible light absorption, larger surface area, higher adsorption ability, and prolonged lifetime of photo-generated electron-hole pairs. The recycle experiments results showed that the BiVO4@C3N4@GO composite have excellent photo-stability for MB photocatalytic degradation.
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| 关 键 词： | BiVO4 C3N4 GO 可见光 光催化剂 |
| 收稿时间： | 2018-09-14 |
| 修稿时间： | 2018-11-24 |
Novel BiVO4@C3N4@GO Composites with Higher Photocatalytic Performance |
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| Yan-Xiu Liu,Hus SONG.Novel BiVO4@C3N4@GO Composites with Higher Photocatalytic Performance[J].China Petroleum Processing and Petrochemical Technology,2019,21(2):50-57. |
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| Authors: | Yan-Xiu Liu Hus SONG |
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| Abstract: | NBiVO4, BiVO4@C3N4 and BiVO4@C3N4@GO composite photocatalysts were synthesized, and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer(EDS), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), Fourier Transform Infrared Spectroscopy(FT-IR), and Brunauer-Emmett-Teller (BET) surface area techniques. The photocatalytic activity was evaluated for the degradation of the methylene blue (MB) under visible light irradiation and BiVO4@C3N4@GO ternary composite outperformed the binary composites, BiVO4@C3N4 and BiVO4. Then the effects of catalyst dosage, initial pH, and initial methylene blue concentration on degradation process were investigated systematically. The improvement of visible-light photocatalytic degradation performance was attributed to the enhanced visible light absorption, larger surface area, higher adsorption ability, and prolonged lifetime of photo-generated electron-hole pairs. The recycle experiments results showed that the BiVO4@C3N4@GO composite have excellent photo-stability for MB photocatalytic degradation. |
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| Keywords: | BiVO4 C3N4 GO Visible light Photocatalyst |
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