| g-C3N4/MoS2纳米片/氧化石墨烯三元复合催化剂的制备及可见光催化性能 |
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| 引用本文： | 阎鑫,卢锦花,惠小艳,闫从祥,高强,孙国栋.g-C3N4/MoS2纳米片/氧化石墨烯三元复合催化剂的制备及可见光催化性能[J].无机材料学报,2018,33(5):515-520. |
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| 作者姓名： | 阎鑫 卢锦花 惠小艳 闫从祥 高强 孙国栋 |
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| 作者单位： | 1. 长安大学 材料科学与工程学院, 西安 710064;
2. 西北工业大学 材料科学与工程学院, 凝固技术国家重点实验室, 西安 710072 |
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| 基金项目： | 国家自然科学基金(51402024);陕西省自然科学基金(2015JM2070);西北工业大学凝固技术国家重点实验室开放课题(SKLSP201751) |
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| 摘 要： | 采用球磨法制备 g-C3N4/MoS2纳米片/氧化石墨烯(GO)三元复合催化剂。运用X 射线衍射(XRD)、透射电子显微镜(TEM)、紫外-可见吸收光谱(UV-Vis)和光致激发光谱(PL)等分析手段, 对催化剂的结构、形貌和光学性能进行表征。结果表明: MoS2纳米片和g-C3N4形成异质结结构, 均匀地分散在氧化石墨烯的表面上。以罗丹明B(RhB)为模拟污染物, 研究三元复合催化剂在可见光照射下的光催化特性。结果显示: 三元复合催化剂在120 min内对RhB的降解率达到96%, 其降解动力学常数分别是g-C3N4、g-C3N4/ MoS2、g-C3N4/GO复合催化剂的3、2.1和2.8倍。根据实验结果及能带结构提出了三元复合催化剂可能的光催化机理。
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| 关 键 词： | 氮化碳 二硫化钼纳米片 氧化石墨烯 光催化 |
| 收稿时间： | 2017-05-26 |
| 修稿时间： | 2017-07-10 |
Preparation and Visible Light Photocatalytic Property of g-C3N4/MoS2 Nanosheets/GO Ternary Composite Photocatalyst |
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| YAN Xin,LU Jin-Hua,HUI Xiao-Yan,YAN Cong-Xiang,GAO Qiang,SUN Guo-Dong.Preparation and Visible Light Photocatalytic Property of g-C3N4/MoS2 Nanosheets/GO Ternary Composite Photocatalyst[J].Journal of Inorganic Materials,2018,33(5):515-520. |
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| Authors: | YAN Xin LU Jin-Hua HUI Xiao-Yan YAN Cong-Xiang GAO Qiang SUN Guo-Dong |
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| Affiliation: | 1. School of Materials and Science and Engineering, Chang’an University, Xi’an 710064, China;
2. State Key Laboratory of Solidification Processing, School of Materials and Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China; |
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| Abstract: | The g-C3N4/MoS2 nanosheets/graphene oxide (GO) ternary composite photocatalyst was successfully prepared by a ball milling method. Its structure, morphology and optical property were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-Vis absorption spectroscopy (DRS), and photoluminescence spectroscopy (PL), respectively. The results indicated that the heterogeneous structure of MoS2 nanosheets and g-C3N4 were formed on the surface of GO. The photocatalytic activity of the photocatalyst was evaluated by degradation of organic Rhodamine B (RhB) under visible light irradiation. The ternary composite photocatalyst could degrade 96% of RhB within 120 min, about 3, 2.1 and 2.8 times higher than that of the g-C3N4, g-C3N4/MoS2 composite and g-C3N4/GO composite. Based on the experimental results and the band structure, a possible charge transfer mechanism of ternary composite photocatalyst was proposed. |
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| Keywords: | carbon nitride molybdenum disulfide nanosheets graphene oxide photocatalysis |
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