Self-photodegradation of formaldehyde under visible-light by solid wood modified via nanostructured Fe-doped WO3 accompanied with superior dimensional stability

Chengmin Sheng; Chao Wang; Hanwei Wang; Chunde Jin; Qingfeng Sun; Song Li

doi:10.1016/j.jhazmat.2017.01.018

Self-photodegradation of formaldehyde under visible-light by solid wood modified via nanostructured Fe-doped WO₃ accompanied with superior dimensional stability

J Hazard Mater. 2017 Apr 15:328:127-139. doi: 10.1016/j.jhazmat.2017.01.018. Epub 2017 Jan 16.

Authors

Chengmin Sheng¹, Chao Wang¹, Hanwei Wang¹, Chunde Jin², Qingfeng Sun³, Song Li⁴

Affiliations

¹ School of Engineering, Zhejiang A&F University, Hangzhou, 311300, PR China.
² School of Engineering, Zhejiang A&F University, Hangzhou, 311300, PR China; College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha, 410004, PR China.
³ School of Engineering, Zhejiang A&F University, Hangzhou, 311300, PR China. Electronic address: qfsun@zafu.edu.cn.
⁴ School of Engineering, Zhejiang A&F University, Hangzhou, 311300, PR China; College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha, 410004, PR China. Electronic address: li123song@163.com.

PMID: 28110147
DOI: 10.1016/j.jhazmat.2017.01.018

Abstract

In this paper, solid wood with superior self-photodegradation of formaldehyde (HCHO) under visible-light was realized through a facile method at room temperature. Spherical Fe-doped WO₃ nanostructured materials deposited on the wood substrate with diameters ranging from 100 to 150nm were mainly responsible for the self-photodegradation of formaldehyde. Fe-doped WO₃ nanostructured materials were strongly adhered to wood surface through electrostatic and hydrogen bonding interactions. Additionally, the dimensional stability and the inherent anisotropic thickness swelling of wood were greatly improved and eliminated, respectively. Interestingly, a wood rabbit craft was also designed and showed a good visible-light-driven photocatalytic performance in a relatively larger area for different concentrations of HCHO. The research result would both fabricate a novel catalyst for the degradation of the hazardously gaseous pollutants and basically improve the wood intrinsic performance.

Keywords: HCHO; Photocatalytic activity; WO(3) nanomaterials; Wood.