摘要
二甲苯是泄漏事故频率较高的一种典型危险化学品。在化学品泄漏响应中,吸附材料可以作为一种资源用于水中化学品的回收。为了选择一种优秀的吸附材料清除水面泄漏二甲苯,本文在介绍5类吸附剂(矿物类、生物质、纳米材料、有机合成化合物和超疏水材料)的结构特点、吸附原理、吸附性能基础上,评述了各类吸附剂应用于泄漏事故水域二甲苯分离去除的优缺点,介绍了各类材料吸附分离二甲苯的最新进展。分析表明,超疏水三维多孔材料(超疏水海绵、超疏水纤维等)和超疏水网膜材料由于具有较高的亲油疏水性和二甲苯吸附容量,且机械强度大、耐磨性强、再生方法简单,使其适于作为大面积二甲苯污染水域的分离材料。本文对改进超疏水材料应用效果提出了建议。
Xylene is a typical hazardous chemical with high spill frequency. Recovery of chemical by sorbent materials is one of the countermeasures in water chemical spills response. In order to provide information on the selection of optimal adsorption material for cleanup of leaked xylene, the structural characteristics, adsorption mechanisms and adsorption capacities of five types of adsorbents(products of mineral adsorbents, biomass, nano-materials, organic synthetic compounds and super-hydrophobic materials) were described in this review. The advantages and disadvantages of adsorbents in xylene separation and removal were discussed. The latest research advances of xylene sorption with those materials were also summarized in this review. Due to the superhydrophobic performance, high adsorption capacity, high mechanical strength, strong wear resistance and easy regeneration, the superhydrophobic three-dimensional porous materials(such as super-hydrophobic sponges, super-hydrophobic fibers) and superhydrophobic mesh materials are suitable for xylene recovery in large water area. Several recommendations improving application effectiveness of superhydrophobic materials were put forward.
作者
赵诗琳
孟范平
林雨霏
郑洋
王国善
武江越
ZHAO Shilin;MENG Fanping;LIN Yufei;ZHENG Yang;WANG Guoshan;WU Jiangyue(Key Laboratory of Marine Environmental Science and Ecology,Ministry of Education,Ocean University of China,Qingdao 266100,Shandong,China;National Marine Hazard Mitigation Service,Ministry of Natural Resources,Beijing 100194,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2019年第6期2813-2824,共12页
Chemical Industry and Engineering Progress
基金
国家海洋局海洋减灾中心项目(2017AB030)
关键词
二甲苯
吸附
分离
水上泄漏
污染
xylene
adsorption
separation
spills on water
pollution