title: TEMPO-oxidized bacterial cellulose nanofibers-supported gold nanoparticles with superior catalytic properties.
abstract: A novel nanohybrid was successfully fabricated by deposition of gold nanoparticles (AuNPs) onto the surface of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized bacterial cellulose nanofibers (TOBCNs). The prepared AuNPs/TOBCNs nanohybrids were characterized by UV-vis spectral analysis, XRD, TEM and HRTEM. Their catalytic activity for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) was estimated by UV-vis spectrometry. The results showed that the AuNPs/TOBCNs nanohybrids possessed AuNPs with an average diameter of 4.30±0.97nm exhibited superior catalytic properties for the reduction of 4-NP to 4-AP. The influences of the content of reducing agent and system temperature on the catalytic property were studied. Moreover, the turnover frequency of AuNPs/TOBCNs was 750h-1, which is higher than most recently reported AuNPs-based catalysts. This work reported a heterogeneous catalyst based on TOBCNs supported AuNPs with superior catalytic properties.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance Fibers and Products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance Fibers and Products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China. Electronic address: chensy@dhu.edu.cn.
authors.forename: Shiyan
authors.initials: S
authors.lastname: Chen
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance Fibers and Products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Baoxiu
authors.initials: B
authors.lastname: Wang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance Fibers and Products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Yao
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance Fibers and Products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China. Electronic address: wanghp@dhu.edu.cn.
authors.forename: Huaping
authors.initials: H
authors.lastname: Wang
mesh_terms: D002384:Catalysis; D002483:Cellulose, Oxidized / Q000737:chemistry*; D003497:Cyclic N-Oxides / Q000737:chemistry*; D006046:Gold; D053768:Metal Nanoparticles; D057139:Nanofibers
chemical_list: D002483:Cellulose, Oxidized; D003497:Cyclic N-Oxides; D006046:Gold; C003959:TEMPO
keywords: AuNPs; Bacterial cellulose nanofibers; Catalytic properties; Nanohybrids