Catalytic behavior of a thermo-responsive PVDF/microgel@Pd membrane for 2- nitroaniline degradation
Catalytic behavior of a thermo-responsive PVDF/microgel@Pd membrane for 2- nitroaniline degradation
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DOI：
10.1016/j.jece.2020.104757
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发表时间：
2020-11
影响因子：
7.7
通讯作者：
Bangkai Li;Xi Chen;Yongdi Ma;Jianzu Wang;Xiaoying Zhai;Yang He;Yuan Li;Rujiang Ma;Wangqing Zhang
中科院分区：
文献类型：
--
作者：
Bangkai Li;Xi Chen;Yongdi Ma;Jianzu Wang;Xiaoying Zhai;Yang He;Yuan Li;Rujiang Ma;Wangqing Zhang
将Pd纳米颗粒修饰的温敏微凝胶插入PVDF膜孔中，制备了一种新型的温敏催化膜，在渗透流和环行流模型下对2-硝基苯胺进行了静态催化降解。由于催化膜特殊的热响应行为，将渗透流降解的温度从30℃提高到35 min，可以使通量增加至少30%，同时转化率提高至少0.3%，显著提高反应效率和产物排放。此外，环状错流的降解速率远高于静态降解。总之，该膜能很好地执行有副反应的催化降解，并通过渗透流及时去除产物。此外，该催化膜还可以很好地执行催化降解，而不会发生环状错流的副反应。
Catalytic degradation of 2- nitroaniline is carried out under a penetrative flow and circular cross flow model as well as in the static state by a novel thermo-responsive catalytic membrane prepared by inserting Pd nanoparticles decorated thermo-responsive microgels into PVDF membrane pores. Due to the special thermo-responsive behavior of the catalytic membrane, increasing the temperature of the penetrative flow degradation from 30 to 35℃ can make the flux increase by at least 30 % and simultaneously the conversion increase by at least 0.3 %, significantly enhancing the reaction efficiency and the product discharge. In addition, the circular cross flow degradation shows a much higher rate than the static degradation. In brief, this membrane can well execute the catalytic degradation with side reactions and timely remove the products by the penetrative flow. Further more, the catalytic membrane can also well execute the catalytic degradation without side reactions by the circular cross flow.