催化作用
静电纺丝
化学工程
肿胀 的
甲基橙
降级(电信)
材料科学
纤维
污染物
反应速率常数
纳米颗粒
亚甲蓝
化学
聚合物
复合材料
有机化学
纳米技术
动力学
光催化
工程类
计算机科学
电信
物理
量子力学
作者
Shiru Jia,Tan Jovan,Zhen Liu,Ren Yong-hui,Yuze Zhou,Yu Zhou,Dewei Tang
标识
DOI:10.1016/j.jece.2022.108366
摘要
Aiming at the highly toxic and refractory organic pollutants in wastewater, a stimuli-responsive fiber catalyst was fabricated via blending electrospinning technology and followed thermal treatment. The stable crosslinking structure supported high swelling abilities of the fibers, showing the swelling ratio of 5,629 %. Our studies demonstrated that the swollen structure of the fibers created more inner spaces and active sites to facilitate the diffusion of pollutant molecules inside the fibers. Additionally, the synergy between Ag nanoparticles and the quinone groups of polydopamine further enhanced desirable catalytic properties for 4-nitrophenol, methylene blue, and methyl orange, at reaction rate constants of 9.75 × 10−2 min−1, 2.82 × 10−2 s−1, and 3.51 × 10−2 s−1, respectively. The fiber catalyst also benefited from the stimuli-responsive copolymers and displayed valuable pH/temperature-controlled catalytic activities. Lastly, we determined that the fiber catalyst's performance marginally diminished after several repeated use, making it economically and sustainably suitable for vast applications in wastewater purification.
科研通智能强力驱动
Strongly Powered by AbleSci AI