期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 5, 期 2, 页码 1718-1731出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2017.03.014
关键词
Microsheets; Nanoplates; Layered double hydroxide; Cr(VI) ions removal; Methyl orange adsorption
资金
- National Research Foundation (NRF), South Africa
- Faculty of Science, University of Johannesburg, South Africa
The removal of effluents from water is necessary for environmental concerns. The common approach to the development of methodologies for water purification is to search for excellent materials with optimised chemical compositions and unique structural dimension. Here a facile chemical approach has been developed for the synthesis of microsheets of chlorine interlayer ZnAl layered double hydroxides (Cl-ZnAl LDHs) hexagonal nanoplates by simply varying the molar ratio of salts precursors in the presence of hexamethylenetetramine (HMTA). The possible formation mechanism of microsheets of ClZnAl LDHs hexagonal nanoplates has been described on the basis of different characterization. The prepared unique structural microsheets exhibited ultrafast adsorption rates and high adsorption capacities in the removal of anionic methyl orange (MO) dye and Cr(VI) ions from aqueous solution. The adsorption isotherms, kinetics models and mechanisms for Cr(VI) ions and MO onto Cl-ZnAl LDHs were also investigated in detail. The high uptake capability, reusability and ultrafast kinetics make Cl-ZnAl LDHs unique structural microsheets a potentially attractive low-cost adsorbent for the efficient removal of metal ions and toxic dye from contaminated water. Furthermore, the simple synthesis strategy might be envisaged for another type of LDHs, and consequently, a variety of applications can target due to their specific structural dimensions. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据