| 多孔类石墨相氮化碳的制备及光催化性能研究 |
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| 引用本文： | 尤增宇,苏钰璇,王辉,于洋,秦天,申乾宏,杨辉.多孔类石墨相氮化碳的制备及光催化性能研究[J].稀有金属材料与工程,2018,47(S2):204-208. |
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| 作者姓名： | 尤增宇 苏钰璇 王辉 于洋 秦天 申乾宏 杨辉 |
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| 作者单位： | 浙江大学 材料科学与工程学院 硅材料国家重点实验室,浙江大学 材料科学与工程学院 硅材料国家重点实验室,浙江大学 材料科学与工程学院 硅材料国家重点实验室,浙江大学 材料科学与工程学院 硅材料国家重点实验室,浙江大学 材料科学与工程学院 硅材料国家重点实验室,浙江大学 材料科学与工程学院 硅材料国家重点实验室,浙江大学 材料科学与工程学院 硅材料国家重点实验室 |
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| 摘 要： | 通过简单的氨水水热法制备得到了多孔g-C3N4光催化材料。利用 X 射线衍射（XRD）、红外光谱（FT-IR）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）研究了氨水对多孔g-C3N4结构的影响。并以亚甲基蓝为目标分解物考察了样品的可见光催化活性。研究结果表明：制备得到多孔g-C3N4具有由2D 纳米片和相互连通的孔道组成的多孔纳米结构。多孔g-C3N4的可见光催化活性得到了提升，原因在于相较于普通g-C3N4，多孔g-C3N4能够提供更多的光催化反应活性位点，并且具有更高的光生载流子分离及迁移效率。
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| 关 键 词： | g-C3N4 多孔结构 可见光催化 |
| 收稿时间： | 2017/11/28 0:00:00 |
| 修稿时间： | 2017/11/28 0:00:00 |
Preparation of porous graphitic carbon nitride with en-hanced visible-light photocatalytic activities |
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| YOU Zengyu,SU Yuxuan,WANG Hui,YU Yang,QIN Tian,SHEN Qianhong and YANG Hui.Preparation of porous graphitic carbon nitride with en-hanced visible-light photocatalytic activities[J].Rare Metal Materials and Engineering,2018,47(S2):204-208. |
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| Authors: | YOU Zengyu SU Yuxuan WANG Hui YU Yang QIN Tian SHEN Qianhong and YANG Hui |
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| Affiliation: | State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China,State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China,State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China,State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China,State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China,State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China,State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou PR China |
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| Abstract: | A simple and template-free synthesis method was developed to fabricate porous graphitic carbon nitride (g-C3N4) through a hydrothermal process in the presence of ammonium hydroxide. The effect of ammonium hydroxide on the structure of porous g-C3N4 was characterized in details by XRD, FT-IR, SEM and TEM. The photocatalytic activity of porous g-C3N4 was evaluated by the degradation of methylene blue (MB) under visible light irradiation. The results show that as-prepared porous g-C3N4 exhibits a porous nanostructure composed of 2D nanosheets and interconnected pores. The photocatalytic activity of porous g-C3N4 is enhanced, owing to the synergistic effect of more reaction sites and good separation efficiency of photo-generated carriers. |
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| Keywords: | Graphitic carbon nitride porous structure visible-light photocatalysis |
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