TEMPO-oxidized bacterial cellulose nanofibers-supported gold nanoparticles with superior catalytic properties

Yan Chen; Shiyan Chen; Baoxiu Wang; Jingjing Yao; Huaping Wang

doi:10.1016/j.carbpol.2016.12.020

TEMPO-oxidized bacterial cellulose nanofibers-supported gold nanoparticles with superior catalytic properties

Carbohydr Polym. 2017 Mar 15:160:34-42. doi: 10.1016/j.carbpol.2016.12.020. Epub 2016 Dec 9.

Authors

Yan Chen¹, Shiyan Chen², Baoxiu Wang¹, Jingjing Yao¹, Huaping Wang³

Affiliations

¹ 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.
² 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.
³ 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.

PMID: 28115098
DOI: 10.1016/j.carbpol.2016.12.020

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.

Keywords: AuNPs; Bacterial cellulose nanofibers; Catalytic properties; Nanohybrids.

MeSH terms

Catalysis
Cellulose, Oxidized / chemistry*
Cyclic N-Oxides / chemistry*
Gold
Metal Nanoparticles*
Nanofibers*

Substances

Cellulose, Oxidized
Cyclic N-Oxides
Gold
TEMPO