三维多孔弹性体吸附剂的制备及其高效去除染料特性  

Synthesis of Three-Dimensional Porous Elastomer Adsorbent and Its Properties of Highly Efficient Dyes Removal

作　　者：张敏[1,2] 何健怡 沈钦阳 梁业如 刘应亮 徐飞 熊开容 ZHANG Min;HE Jianyi;SHEN Qinyang;LIANG Yeru;LIU Yingliang;XU Fei;XIONG Kairong(School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China;College of Materials and Energy,South China Agricultural University,Guangzhou 510642,China;School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]广东工业大学环境科学与工程学院,广州510006 [2]华南农业大学材料与能源学院,广州510642 [3]西北工业大学材料学院,西安710072

出　　处：《功能高分子学报》2022年第6期540-547,共8页Journal of Functional Polymers

基　　金：国家自然科学基金(51972121);国家社会科学基金(17 BXW104);广东省自然科学基金面上项目(2019 A1515011502)。

摘　　要：通过使用乙烯-醋酸乙烯酯共聚物将多孔炭黏附在聚氨酯泡沫骨架中,构建了一种新型三维多孔弹性体吸附剂(3D-PE)。利用扫描电子显微镜(SEM)、气体吸附分析仪、电子万能试验机、紫外-可见分光光度计等对3D-PE的结构、性质及染料吸附性能进行了表征。结果表明:3D-PE在压缩条件下表现出高强度、优异的回弹性和良好的柔韧性,对有机染料分子具有较高的吸附速率(5 min内去除率为96%)和稳定的循环使用性。Developing an efficient adsorbent is of great importance for wastewater treatment.Despite many examples for their synthesis exist,it still remains a challenge to fabricate a versatile adsorbent to overcome the defects of their common forms(e.g.,powder,pellet,bead and flake).Herein,a novel three-dimensional porous elastic adsorbent(3D-PE)was constructed by adhering porous carbon to polyurethane foam framework using ethylene-vinyl acetate copolymer.3D-PE was characterized by scanning electron microscope(SEM),gas adsorption analyzer,electronic universal testing machine and UV-Vis spectrophotometer.Benefitting from the rational integration of the porous carbon,ethylene-vinyl acetate copolymer and polyurethane foam,3D-PE exhibited high strength,excellent resilience and remarkable flexibility even under compression conditions.Inspired by these impressive characteristics,3D-PE was potentially used as an adsorbent for wastewater purification,especially in a feasible application to be operated under harsh conditions.As a proof of concept,when the adsorbents were used towards methylene blue removal,3D-PE exhibited high adsorption rate(96%removal efficiency within 5 min),stable recyclability even under a repeatedly compressed condition.In addition,kinetics and isotherm models were fitted.It was confirmed that the adsorption of methylene blue by 3D-PE was chemisorption and multi-molecular layer adsorption.3D-PE may hold good promising applications in wastewater remediation,catalytic reactions,and environmental engineering.

关 键 词：弹性 柔性 三维多孔弹性体 吸附剂 染料吸附 

分 类 号：X522[环境科学与工程—环境工程]