Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Seongnam-si, 13120, Gyeonggi-do, Republic of Korea.
Korea Railroad Research Institute (KRRI), 176 Cheoldobakmulkwan-ro, Uiwang-si, 16105, Gyeonggi-do, Republic of Korea.
Environ Sci Pollut Res Int. 2018 Sep;25(25):24569-24599. doi: 10.1007/s11356-018-2605-y. Epub 2018 Jul 14.
During the last decade, hydrogels have been used as potential adsorbents for removal of contaminants from aqueous solution. To improve the adsorption efficiency, there are numerous different particles that can be chosen to encapsulate into hydrogels and each particle has their respective advantages. Depending on the type of pollutants and approaching method, the particles will be used to prepare hydrogels. The hydrogels commonly applied in water/wastewater treatment was mainly classified into three classes according to their shape included hydrogel beads, hydrogel films, and hydrogel nanocomposites. In review of many recently research papers, we take a closer look at hydrogels and their applications for removal of contaminants, such as heavy metal ion, dyes, and radionuclides from water/wastewater in order to elucidate the reactions between contaminants and particles and potential for recycling and regeneration of the post-treatment hydrogels. Graphical abstract ᅟ.
在过去的十年中，水凝胶已被用作从水溶液中去除污染物的潜在吸附剂。为了提高吸附效率，可以选择许多不同的颗粒来封装到水凝胶中，并且每种颗粒都有各自的优点。根据污染物的类型和接近方法，将使用颗粒来制备水凝胶。在水/废水处理中常用的水凝胶主要根据其形状分为三类，包括水凝胶珠、水凝胶膜和水凝胶纳米复合材料。在回顾了许多最近的研究论文后，我们更仔细地研究了水凝胶及其在去除污染物方面的应用，例如从水/废水中去除重金属离子、染料和放射性核素，以阐明污染物与颗粒之间的反应以及后处理水凝胶的回收和再生的潜力。
