| C/g-C3N4/MoS2复合材料的制备及光催化性能 | |
| Preparation and Photocatalytic Activity of C/g-C3N4/MoS2 Composites | |
| 摘要: 首先以尿素和葡萄糖为前驱体，通过热缩合方法制备了C/g-C3N4，然后利用溶剂热法合成C/g-C3N4/MoS2三元复合材料。通过不同的手段对其进行了表征，结果表明，与C/g-C3N4相比，该三元复合材料不仅具有更强的光吸收性能和更大的表面积，而且更有利于电子的转移。同时对其可见光催化降解甲基橙性能进行研究，结果发现，C/g-C3N4/MoS2-2.0%复合材料（含有质量分数为2.0%的MoS2）表现出最高的反应速率常数（0.008 6 min-1），分别为g-C3N4/MoS2-2.0%（0.001 5 min-1）和C/g-C3N4（0.003 6 min-1）的5.7倍和2.3倍。 | |
| 关键词: g-C3N4 无定形碳 MoS2 可见光催化 | |
| 基金项目: 国家自然科学基金（No.21701149）、郑州师范学院环境催化创新团队（No.702010）、河南省高等学校大学生创新创业训练计划项目（No.202012949003）、郑州师范学院大学生创新创业训练计划项目（No.DCZ2019025）和郑州师范学院青年骨干教师培养计划（No.QNGG-20889）资助。 | |
| Abstract: C/g-C3N4 was firstly prepared by thermal condensation method with urea and glucose as precursors, and then C/g-C3N4/MoS2 ternary composites were synthesized by solvothermal method. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), N2 adsorption-desorption, ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), photoluminescence spectroscopy (PL) and transient photocurrent analytical tests were used to characterize the crystal structure, morphology, specific surface area and optical properties of photocatalysts. In comparison with the C/g-C3N4, the ternary composites not only present a larger specific surface area, stronger light absorption capacity, but also were more favorable for electron transfer. At the same time, the performance of visible light catalytic degradation of methyl orange was studied. It was found that C/g-C3N4/MoS2-2.0% (Mass fraction of MoS2:2.0%) showed the highest reaction rate constant (0.008 6 min-1), which was 5.7 times and 2.3 times of g-C3N4/MoS2 2.0% (0.001 5 min-1) and C/g-C3N4 (0.003 6 min-1), respectively. | |
| Keywords: g-C3N4 amorphous carbon MoS2 visible light catalysis | |
| 投稿时间：2020-10-26 修订日期：2021-01-28 | |
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| 陈建军,李永宇,王雅苹,崔天露,靳爱玲,尚小林,乔岩.C/g-C3N4/MoS2复合材料的制备及光催化性能[J].无机化学学报,2021,37(5):791-797. | |
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