摘要
利用水热法合成一种新型热敏剂MoS_2/Ni_3Bi_2S_2,并将其用于低温热催化降解亚甲基蓝。通过X射线荧光光谱(XRF)、X射线衍射(XRD)、扫描电子显微镜(SEM)、紫外-可见分光光度测定法(UV-Vis)、傅里叶变换红外光谱(FT-IR)和热重分析(TG)对样品粉末进行分析。结果表明,MoS_2/Ni_3Bi_2S_2具有优良的热催化性能并使得亚甲基蓝快速被降解。当质量浓度为20 mg/L,40℃下反应2.5 h后溶液去除率高达98.59%。此外,热敏剂还表现出良好的重复使用性能,循环5次后去除率仍高达89.7%。
A novel thermosensor,MoS2/Ni3Bi2S2,is synthesized by hydrothermal method and used to catalyze the degradation of methylene blue at low temperature. The powder samples are characterized by X-ray diffraction（ XRD）,scanning electron microscopy（ SEM）,ultraviolet-visible spectrophotometry（ UV-Vis）,Fourier transform infrared spectroscopy（ FT-IR）,X-ray fluorescence（ XRF） and thermogravimetric analysis（ TG）. The results show that MoS2/Ni3Bi2S2 has excellent thermal catalytic performance and makes methylene blue rapidly degraded. When the concentration of MB is 20 mg / L,the removal rate of MB could be as high as 98. 59% after reacted for 2. 5 h at 40℃. In addition,the thermal agent also shows good re-use performance. The removal rate is still as high as 89. 7% even after recycling for 5 times.
出处
《现代化工》
CAS
CSCD
北大核心
2016年第12期101-105,共5页
Modern Chemical Industry
基金
国家核能开发专项课题(13ZG610301)
