Adsorption Properties of Methylene Blue from Aqueous Solution onto Thermal Modified Rectorite

被引：9

作者：

Guo, Yadan ^{[1
,2
]}

Liu, Yuanyuan ^{[1
]}

机构：

[1] E China Inst Technol, Sch Water Resources & Environm Engn, Nanchang 330013, Peoples R China

[2] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2014年 / 35卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Kinetics; methylene blue; rectorite; thermal modified; thermodynamics; LOW-COST ADSORBENTS; WASTE-WATER; CATIONIC DYE; CONGO RED; REMOVAL; ACID; SORPTION; CARBON; NANOCOMPOSITE; MECHANISM;

D O I：

10.1080/01932691.2013.844076

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The thermal modified rectorite (TR) was prepared and characterized by x-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy. The structure of TR was destroyed gradually with increasing the calcination temperature, and the adsorption capacity for methylene blue (MB) of the rectorite can be improved by thermal modification in appropriate temperature ranges. The equilibrium data were well described by the Langmuir model. The kinetic studies indicated that the adsorption process was fitted well with the pseudo-second-order kinetic model. Thermodynamic studies indicated that adsorption of MB was endothermic in nature and favorable with the positive Delta H-0 value of 25.90 kJ/mol.

引用

页码：1351 / 1359

页数：9

共 51 条

[1] Sorption of acid red 57 from aqueous solution onto sepiolite [J].