| CdS/石墨烯纳米复合材料的超声化学法制备及光催化性能 | |
| CdS-Graphene Nanohybrids: Facile Ultrasonic Synthesis and Photocatalytic Performance | |
| 摘要: 采用超声化学法制备了CdS/石墨烯纳米复合材料，通过TEM、FE-SEM、XRD、UV-Vis等对该复合材料的结构、形貌及其光学和可见光光催化性能进行了表征。结果表明，超声化学法不仅合成过程简单，而且石墨烯表面所负载的CdS纳米粒子尺寸小、分散性好，与石墨烯的结合牢固。由于石墨烯优异的吸附性能和对载流子的高迁移率，CdS/石墨烯纳米复合材料显示出较高的可见光光催化性和光稳定性，30 min内甲基橙的降解率即可达到90%以上，且3次重复实验过程中光催化效果接近。 | |
| 关键词: 石墨烯 CdS 纳米复合材料 超声化学法 光催化 | |
| 基金项目: | |
| Abstract: CdS/graphene nanohybrids were synthesized by a facile ultrasonic method. Their morphology, microstructure, optical property and photocatalytic activity under visible light were characterized by TEM、FE-SEM、XRD、UV-Vis and PL. The results show that ultrasonic condition enables small-sized, well-dispersed CdS nanoparticles to anchor firmly on the graphene sheets. Due to the good absorption property and the reduction of electron-hole pair recombination in CdS, the CdS/graphene nanohybrids exhibit high photo-stability and excellent photocatalytic performance for the degradation of methyl orange with a maximum removal rate of more than 90% in 30 min under visible light irradiation, and also no detectable changes of photocatalytic performance were observed during three cycles. | |
| Keywords: graphene CdS nanohybrids ultrasonic synthesis photocatalytic activity | |
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| 周 田,陈炳地,姚爱华,王德平.CdS/石墨烯纳米复合材料的超声化学法制备及光催化性能[J].无机化学学报,2013,29(2):231-236. | |
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