title: Highly Efficient Catalysis of Azo Dyes Using Recyclable Silver Nanoparticles Immobilized on Tannic Acid-Grafted Eggshell Membrane.
abstract: In this study, a facile one-step synthesis of a novel nanocomposite catalytic film was developed based on silver nanoparticles (AgNPs) immobilized in tannic acid-modified eggshell membrane (Tan-ESM). Tannic acid, as a typical plant polyphenol from oak wood, was first grafted onto ESM fibers to serve as both the reductant and the stabilizer during the synthesis of AgNPs. The morphology, constitution, and thermal stability of the resulting AgNPs@Tan-ESM composites were fully characterized to explain the excellent catalytic efficiency of AgNPs@Tan-ESM composites. These composite catalysts were applied to the degradation of azo dyes which exhibited the high catalytic activity toward Congo red and methyl orange according to the kinetic curves. More importantly, they can be easily recovered and reused for many times because of their good stability.
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
authors.forename: Xiaojing
authors.initials: X
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
authors.forename: Miao
authors.initials: M
authors.lastname: Liang
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
authors.forename: Mingyue
authors.initials: M
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China. surx@tju.edu.cn.|Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China. surx@tju.edu.cn.|Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin, 300072, China. surx@tju.edu.cn.
authors.forename: Rongxin
authors.initials: R
authors.lastname: Su
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China. mwang@tju.edu.cn.|Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin, 300072, China. mwang@tju.edu.cn.
authors.forename: Mengfan
authors.initials: M
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.|Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China.|Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin, 300072, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Qi
authors.affiliation: State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: He
keywords: Azo dyes; Catalysis; Eggshell membrane; Silver nanoparticles; Tannic acid