膨润土吸附材料在有机污染控制中的应用

Use of Bentonite-Based Sorbents in Organic Pollutant Abatements

由于特殊的天然二维纳米结构,膨润土改性吸附材料在有机污染控制与修复中有广阔的应用前景。本文重点评述了膨润土吸附材料对有机污染物的吸附作用机制、构-效关系,简要总结其在有机废水、废气处理、土壤污染控制与修复等方面的应用进展,并展望了今后的重点研究方向。

Bentonite is a naturally occurring material with planar nanocomposite, which is widely modified through intercalated processes to form muhifunctional sorbents. The bentonite-based sorbents are highly attracted to abate organic pollutants in environments due to environmental-friendly, high-efficiency and cost-effective. Recently, the progress in sorption mechanisms of modified-bentonite, which are highlighted in this review, has been made to extend their environmental applications. The recent applications in abating of organic pollutants are briefly summarized, including wasterwater treatment, air pollution control, contaminated soil remediation, and preparation of clay-based environmental catalyst. The potential research areas are also prospected.