Preparation of oxygen defect vacancies MoO3-x and its adsorption properties

被引：0
作者：
Lijiang W. [1 ]
Zhu Q. [1 ]
Chen L. [1 ]
Cheng H. [1 ]
Qi Z. [1 ]
机构：
[1] State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 10期
关键词：
Adsorption; Kinetics; Methylene blue; Molybdenum oxide; Oxygen vacancies;
D O I：
10.11949/0438-1157.20190648
中图分类号：
学科分类号：
摘要：
The high-efficiency adsorption purification of organic pollutants such as methylene blue in textile printing and dyeing wastewater is an important research topic in the environmental field. The unique lamellar structure of molybdenum oxides has great potential for adsorption application. Molybdenum oxides with different oxygen vacancies concentration were prepared by one-step microwave assisted hydrothermal method. The prepared molybdenum oxides with different negative surface charge distribution were applied to the efficient selective adsorption of organic pollutant cationic azo dye methylene blue. The relationship between oxygen vacancies concentration and adsorption performance was explored. It is found that molybdenum oxide with oxygen vacancies concentration is relative to its adsorption rate. The adsorption process conforms to Langmuir isotherm model and pseudo second order kinetic model, indicating that the adsorption process belongs to monomolecular adsorption. Therefore, it provides a potential for the development and application of metal oxides in the field of dye adsorption. © All Right Reserved.
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页码：3956 / 3966
页数：10
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