化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (10) : 204-206.

科学研究

水热时间对纳米MoS₂形貌及光催化性能的控制研究

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Influence of hydrothermal time on morphology and photocatalysis of MoS₂ nanomaterial

Wu Zhengying¹,Mao Anwen²,Huang Hai¹,Sheng Beibei²,Liu Jinsong²

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摘要

采用水热合成法制得二硫化钼(MoS₂)粉末,详细研究了水热时间对产物形貌及光催化降解性能的影响。首先采用粉末X射线衍射仪(XRD)和场发射扫描电子显微镜(FE-SEM)对产物MoS₂进行了表征,然后利用光催化技术评价了MoS₂对模拟有机污染物亚甲基蓝的降解性能。结果表明:水热时间的延长有利于改善产物MoS₂的形貌规整性,从而进一步提高其光催化性能,水热反应24h制得的MoS₂在光照90min条件下,对亚甲基蓝(MB)的光降解率达到91.29%。

Abstract

Molybdenum disulfide (MoS₂) powders were synthesized by hydrothermal method,and the effect of hydrothermal time on morphology and photocatalytic performance of MoS₂ nanomaterials was studied.The MoS₂ products were characterized by X-ray diffraction (XRD),and field emission scanning electron microscopy (FESEM).Photocatalytic performance of MoS₂ powders for degradation of methylene blue was also measured by degrading methylene blue (MB).Results showed that the longer hydrothermal time was benefits for the more regular morphology of MoS₂,resulting in the higher MB degradation efficiency.The MoS₂ powders synthesized at 24h can degrade about 91.29% of MB within 90min under irradiation.

关键词

MoS₂粉末 / 水热法 / 光催化

Key words

MoS₂ powder / hydrothermal method / photocatalytic performance

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水热时间对纳米MoS₂形貌及光催化性能的控制研究[J]. 化工新型材料, 2018, 46(10): 204-206 DOI:

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参考文献

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