壳聚糖/氧化石墨烯气凝胶吸附废水中染料的研究进展

Research progress of adsorption of dyes in wastewater by chitosan/graphene oxide aerogel

壳聚糖/氧化石墨烯(CS/GO)气凝胶具有吸附能力强、比表面积大、官能团丰富、机械稳定性好的特点,近年来在染料废水处理领域得到了广泛的研究和应用。介绍了CS/GO气凝胶的制备方法,包括水热法、交联法、模板法、接枝法,探究了CS/GO气凝胶吸附染料的机理,阐述了CS/GO气凝胶的循环利用性能,指出了该材料在吸附性能优化方面所面临的挑战,并对其在染料吸附领域未来的发展前景作出展望。

As chitosan/grapheme oxide(CS/GO)aerogel has characteristics of strong adsorption capability,large specific surface area,abundant functional groups,good mechanical stability,and so on,it has been studied and widely applied in dyestuff-containing wastewater treatment.The preparation methods of CS/GO aerogel includes:hydrothermal,crosslinking,templating and stem grafting,were introduced,and the mechanism of CS/GO aerogel adsorbing dyes was explored.The cyclic utilization performance of CS/GO aerogel was elaborated,the challenges the said material face when optimizing the adsorption capability,were pointed out;besides,the development prospected of it in the field of dyestuff adsorption in the future was expected.