化工进展 ›› 2019, Vol. 38 ›› Issue (06): 2813-2824.DOI: 10.16085/j.issn.1000-6613.2018-1880

• 材料科学与技术 • 上一篇    下一篇

二甲苯吸附剂及其在泄漏事故水域的适用性评述

赵诗琳1(),孟范平1(),林雨霏2,郑洋2,王国善2,武江越2   

  1. 1. 中国海洋大学海洋环境与生态教育部重点实验室,山东 青岛 266100
    2. 国家自然资源部海洋减灾中心,北京 100194
  • 收稿日期:2018-09-18 出版日期:2019-06-05 发布日期:2019-06-05
  • 通讯作者: 孟范平
  • 作者简介:赵诗琳(1994—),女,硕士研究生,研究方向为海洋环境生态学。E-mail:<email>shilin.xingmu@qq.com</email>。
  • 基金资助:
    国家海洋局海洋减灾中心项目(2017AB030)

Sorbents for seprating xylene and their applicability in waters after the accidental spills: a review

Shilin ZHAO1(),Fanping MENG1(),Yufei LIN2,Yang ZHENG2,Guoshan WANG2,Jiangyue WU2   

  1. 1. Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong, China
    2. National Marine Hazard Mitigation Service, Ministry of Natural Resources, Beijing 100194, China
  • Received:2018-09-18 Online:2019-06-05 Published:2019-06-05
  • Contact: Fanping MENG

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。

关键词: 二甲苯, 吸附, 分离, 水上泄漏, 污染

Abstract:

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.

Key words: xylene, adsorption, separation, spills on water, pollution

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