Facile synthesis of 3D Mg-Al layered double oxide microspheres with ultra high adsorption capacity towards methyl orange

被引：15

作者：

Cao, Yong ^{[1
]}

Wang, Yixin ^{[1
]}

Zhang, Xiangyang ^{[1
]}

Cai, Xiaogai ^{[1
]}

Li, Zehui ^{[1
]}

Li, Guoting ^{[1
]}

机构：

[1] North China Univ Water Resources & Elect Power, Sch Environm & Municipal Engn, Inst Nanomat Environm & Energy, Zhengzhou 450046, Henan, Peoples R China

来源：

MATERIALS LETTERS | 2019年 / 257卷

关键词：

Porous materials; Mg-Al LDO microspheres; Surfaces; Adsorption; DOUBLE HYDROXIDES; ENHANCED REMOVAL; DYE REMOVAL; CONGO RED; WATER;

D O I：

10.1016/j.matlet.2019.126695

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A facile hydrothermal method was adopted to synthesize 3D Mg-Al layered double hydroxide (LDH) microspheres. After being calcined at 500 degrees C, the obtained Mg-Al layered double oxide (LDO) preserving the morphology of LDH precursor was applied to remove methyl orange (MO) from aqueous solutions. The results show that these LDO microspheres possessing an ultra high adsorption capacity of 3056.8 mg g(-1), and the kinetics and isotherms can be fitted well with the pseudo-second-order and Langmuir models. The adsorption process is spontaneous and exothermic, and the mechanism is mainly attributed to the structure reconstruction of LDH with MO incorporated into the interlayer. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：4

共 22 条

[21] Enhanced removal of ionic dyes by hierarchical organic three-dimensional layered double hydroxide prepared via soft-template synthesis with mechanism study [J].

Zhang, Ping ;

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Huang, Yun ;

Frost, Ray L. .

CHEMICAL ENGINEERING JOURNAL, 2019, 360 :1137-1149

[22] Template-free hydrothermal synthesis of 3D flower-like hollow Mg-Al layered double hydroxides microspheres for high-performance optical diffusers [J].

Zhong, Xi ;

Hu, Jingang ;

Zhou, Yuming ;

He, Man ;

Wang, Yongjuan ;

Tong, Yuan ;

Fan, Lidan ;

Cai, Zhilan ;

Ding, Qinghua .

MATERIALS LETTERS, 2018, 211 :343-347

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