Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad 826004, India.
Department of Applied Chemistry, University of Johannesburg, South Africa.
J Colloid Interface Sci. 2019 Apr 15;542:187-197. doi: 10.1016/j.jcis.2019.01.121. Epub 2019 Jan 29.
Water contamination owing to the presence of toxic organic chemicals/heavy metals are considered to be one of the serious global environmental issues. Various advanced polymeric materials have been developed and used for the separation/removal of these contaminants. To consider the afore-mentioned problem, recently in authors' laboratory, an efficient biopolymeric adsorbent has been prepared using poly (vinyl imidazole) crosslinked chitosan (cl-Ch-pVI) through a simple microwave-assisted free radical polymerization technique. The structural characteristics of the developed hydrogel have been studied in details. The copolymer cl-Ch-pVI reveals excellent gel characteristics, demonstrates superior efficiency towards removal of toxic Cr(VI) from aqueous solution. Moreover, the copolymer also shows outstanding adsorption capacity to remediation of organic dye reactive black 5 (RB5), which manifests the potential application of synthesised copolymer in wastewater treatment.
由于有毒有机化学品/重金属的存在而导致的水污染被认为是严重的全球性环境问题之一。已经开发和使用了各种先进的聚合物材料来分离/去除这些污染物。为了考虑到上述问题，最近在作者的实验室中，通过简单的微波辅助自由基聚合技术，使用交联壳聚糖的聚（乙烯基咪唑）（cl-Ch-pVI）制备了一种高效的生物聚合物吸附剂。详细研究了所开发水凝胶的结构特征。共聚物 cl-Ch-pVI 表现出优异的凝胶特性，对从水溶液中去除有毒 Cr(VI) 具有优异的去除效率。此外，该共聚物对有机染料活性黑 5（RB5）的修复也表现出出色的吸附能力，这表明合成共聚物在废水处理方面具有潜在的应用。
