Electrospun cellulose acetate supported Ag@AgCl composites with facet-dependent photocatalytic properties on degradation of organic dyes under visible-light irradiation

Zidan Zhou; Xinwen Peng; Linxin Zhong; Lan Wu; Xuefei Cao; Run Cang Sun

doi:10.1016/j.carbpol.2015.09.009

Electrospun cellulose acetate supported Ag@AgCl composites with facet-dependent photocatalytic properties on degradation of organic dyes under visible-light irradiation

Carbohydr Polym. 2016 Jan 20:136:322-8. doi: 10.1016/j.carbpol.2015.09.009. Epub 2015 Sep 8.

Authors

Zidan Zhou¹, Xinwen Peng², Linxin Zhong¹, Lan Wu³, Xuefei Cao⁴, Run Cang Sun⁵

Affiliations

¹ State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China.
² State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China. Electronic address: fexwpeng@scut.edu.cn.
³ School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China.
⁴ Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
⁵ State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China; Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China. Electronic address: rcsun3@bjfu.edu.cn.

PMID: 26572362
DOI: 10.1016/j.carbpol.2015.09.009

Abstract

Electrospun cellulose acetate (CA) membrane was employed as a support that provided sites for AgCl crystals in situ growth. The Ag@AgCl crystals on electrospun CA composites with exposed {100} and {111} facets were fabricated at room temperature by a double diffusion technique. The crystal structure, morphology, composition, and absorption light ability of CA supported Ag@AgCl were characterized utilizing X-ray powder diffraction (XRD), scanning electron microscopy (SEM), attenuated total reflection-infrared intensity (ATR-IR), X-ray photoelectron spectroscopy measurements (XPS), energy dispersive spectrometer (EDS) and ultraviolet-visible (UV-vis) diffuse reflectance spectra, respectively. The photocatalytic activity of the catalysts was evaluated using methyl orange (MO) as a target. The CA supported cubic Ag@AgCl catalyst exhibited much higher catalytic activity than octahedral catalyst in terms of the degradation of MO under visible light. The 10mg CA based cubes could completely degrade MO (10 mg L(-1)) in 160 min. The photocatalyst still exhibited a good catalytic ability after three times.

Keywords: Composites; Dye degradation; Electrospun cellulose acetate; Silver chloride; Visible light.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Azo Compounds / chemistry*
Catalysis
Cellulose / analogs & derivatives*
Cellulose / chemistry
Coloring Agents / chemistry
Electricity*
Light*
Membranes, Artificial
Photochemical Processes*
Silver / chemistry*
Silver Compounds / chemistry*
Temperature

Substances

Azo Compounds
Coloring Agents
Membranes, Artificial
Silver Compounds
acetylcellulose
Silver
methyl orange
Cellulose
silver chloride