Preparation of flower-like MgO via spray drying with high adsorption performance

4th International Conference on Applied Materials and Manufacturing Technology

材料科学;机械制造

Kuang, Mengjie^1 ; Yang, Gaoling^1 ; Xie, Zeming^1 ; Su, Qi^1 ; Liu, Baixiong^2

School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi

341000, China^1

Eng. Research Center of High-efficiency Development and Application Technology of Tungsten Resources, Jiangxi University of Science and Technology, Ganzhou, Jiangxi

341000, China^2

关键词: Adsorption model;    Adsorption performance;    Adsorption process;    Adsorption properties;    Calcination temperature;    Langmuir adsorption model;    Mgo nanostructures;    Saturated adsorption capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/423/1/012085/pdf
DOI  :  10.1088/1757-899X/423/1/012085

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Flower-like MgO was synthesized by spray drying combined with heat treatment. The morphologies of MgO can be controlled by adjusting calcination temperature. The adsorption properties of MgO powder as adsorbent to Congo red were studied. When calcination temperature was 350°C, a flower-like MgO nanostructure with a high BET surface area of 180.5m2⋅g-1 was obtained, and the saturated adsorption capacity of Congo red solution was about 2140mg⋅g-1. Furthermore, the adsorption model was explored, and the result shows that the adsorption process accords with Langmuir adsorption model. The high uptake capability of the as-prepared flower-like MgO makes it as a potentially attractive adsorbent for the removal of organic dyes from water.