摘要
以钼酸钠为原材料采用超声波法制备了纳米MoO_(3),研究了纳米MoO_(3)对亚甲基蓝的吸附性能.通过红外光谱、X射线光电子能谱仪、X射线粉末衍射仪、扫描电镜及能谱,研究了纳米MoO_(3)对亚甲基蓝的吸附机理.研究结果表明:纳米MoO_(3)对亚甲基蓝吸附的最大吸附容量为535.78 mg/g,其吸附类型为化学吸附,主要为亚甲基蓝中硫与钼络合成键吸附;根据吸附热力学研究,其吸附模型符合Langmuir等温吸附模型,符合准一级动力学模型.
Nano-MoO_(3) was prepared by ultrasonic method with sodium molybdate as raw material.The nanoMoO_(3) was studied by infrared spectroscopy,X-ray photoelectron spectroscopy,X-ray powder diffractometer,scanning electron microscope and energy spectrum.The maximum adsorption capacity of nano-MoO_(3) of methylene blue is 535.78 mg/g,and its adsorption type is chemical adsorption,mainly the complex bond between sulfur in methylene blue and molybdenum.According to the adsorption thermodynamics and thermodynamic study,the adsorption model conforms to the Langmuir isothermal adsorption model and quasi-first-order kinetic model,respectively.
作者
王先行
杨改霞
谢武
何佳正
WANG Xianxing;YANG Gaixia;XIE Wu;HE Jiazheng(Institute of Resources Utilization and Rare Earth Development Guangdong Academy of Sciences State Key Laboratory of Rare Metals Separation and Comprehensive Utilization Guangdong Province Key Laboratory of Mineral Resources Development and Comprehensive Utilization,China;Guangzhou Tianrun New Materials Technology Co.,Ltd.,Guangzhou 510650,China)
出处
《材料研究与应用》
CAS
2021年第5期561-566,共6页
Materials Research and Application
基金
广东省科学院建设国内一流研究机构行动专项资金项目(2020GDASYL-20200302009)。
