聚苯胺
吸附
膜
静电纺丝
化学工程
壳聚糖
材料科学
导电聚合物
聚苯胺纳米纤维
甲基橙
复合数
电化学
高分子化学
聚合物
化学
复合材料
有机化学
电极
聚合
催化作用
物理化学
工程类
光催化
生物化学
作者
Wenxia Liu,Tao Lou,Xuejun Wang
标识
DOI:10.1016/j.ijbiomac.2023.124711
摘要
Polyaniline is widely used in the field of electrochemistry due to its excellent electrical conductivity. However, its effectiveness and mechanism of enhancing adsorption property are unclear. Herein, chitosan/polyaniline nanofibrous composite membranes with average diameter ranging from 200 to 300 nm were fabricated by electrospinning technology. The as-prepared nanofibrous membranes exhibited significantly improved adsorption capacity of 814.9 mg/g and 618.0 mg/g towards acid blue 113 and reactive orange dyes, which were 121.8 % and 99.4 % higher than that of pure chitosan membrane. The doped polyaniline promoted the dye transfer rate and capacity due to the enhanced conductivity of the composite membrane. Kinetic data showed that chemisorption was the rate-limiting step, and thermodynamic data indicated the adsorption of the two anionic dyes was spontaneous monolayer adsorption. This study provides a feasible strategy to introduce conductive polymer into adsorbent to construct high performance adsorbents for wastewater treatment.
科研通智能强力驱动
Strongly Powered by AbleSci AI