吸附
废水
聚合物
化学工程
材料科学
环境友好型
污染物
热稳定性
污水处理
羧甲基纤维素
微球
壳聚糖
水溶液中的金属离子
废物管理
有机化学
化学
金属
复合材料
冶金
工程类
钠
生物
生态学
作者
Jiwon Lee,Rajkumar Patel
出处
期刊:Polymers
[MDPI AG]
日期:2022-05-05
卷期号:14 (9): 1890-1890
被引量:14
标识
DOI:10.3390/polym14091890
摘要
This review addresses polymer microspheres used as adsorbent for wastewater treatment. The removal of various pollutants (including dyes, heavy metal ions, and organic pollutants) is a prominent issue, as they can cause severe health problems. Porous microspheres can provide large specific area and active sites for adsorption or photo degradation. Enhancement in performance is achieved by various modifications, such as the introduction of nanoparticles, magnetic particles, and ZIF-8. Some microspheres were synthesized from synthetic polymers such as vinylic polymer and polydopamine (PDA) through a facile fabrication process. Natural polymers (such as cellulose, alginate, and chitosan) that are biodegradable and eco-friendly are also used. The adsorbents used in industrial application require high adsorption capacity, thermal stability, and recyclability. Batch adsorption experiments were conducted to investigate the optimal conditions, influence of related factors, and adsorption capacities. Insights regarding the adsorption mechanisms were given from the kinetic model, isotherm model, and various characterization methods. The recyclability is investigated through regeneration ratio, or their maintenance of their capability through repeated adsorption-desorption cycles. The high potential of polymer microsphere for the removal of pollutants from wastewater is shown through the high adsorption capacities, environmentally friendliness, and high stability.
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