Photocatalytic degradation of surface-coated tourmaline-titanium dioxide for self-cleaning of formaldehyde emitted from furniture

Xiangjie Wang; Shu Hong; Hailan Lian; Xianxu Zhan; Mingjuan Cheng; Zhenhua Huang; Maurizio Manzo; Liping Cai; Ashok Nadda; Quyet Van Le; Changlei Xia

doi:10.1016/j.jhazmat.2021.126565

Photocatalytic degradation of surface-coated tourmaline-titanium dioxide for self-cleaning of formaldehyde emitted from furniture

J Hazard Mater. 2021 Oct 15:420:126565. doi: 10.1016/j.jhazmat.2021.126565. Epub 2021 Jul 3.

Authors

Xiangjie Wang¹, Shu Hong¹, Hailan Lian², Xianxu Zhan³, Mingjuan Cheng³, Zhenhua Huang⁴, Maurizio Manzo⁴, Liping Cai⁵, Ashok Nadda⁶, Quyet Van Le⁷, Changlei Xia⁸

Affiliations

¹ Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Jiangsu Engineering Research Center of Fast-growing Trees and Agri-fiber Materials, Nanjing, Jiangsu 210037, China.
² Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Jiangsu Engineering Research Center of Fast-growing Trees and Agri-fiber Materials, Nanjing, Jiangsu 210037, China. Electronic address: lianhailan@njfu.edu.cn.
³ DeHua TB New Decoration Materials Co., Ltd. Enterprise of Graduate Research Station of Jiangsu Province, Huzhou, Zhejiang 313200, China.
⁴ Department of Mechanical Engineering, University of North Texas, Denton, TX 76207, USA.
⁵ Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Department of Mechanical Engineering, University of North Texas, Denton, TX 76207, USA.
⁶ Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173 234, India.
⁷ Department of Materials Science and Engineering, Korea University, 145, Anam-ro Seongbuk-gu, Seoul 02841, South Korea.
⁸ Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Jiangsu Engineering Research Center of Fast-growing Trees and Agri-fiber Materials, Nanjing, Jiangsu 210037, China. Electronic address: changlei.xia@njfu.edu.cn.

PMID: 34252680
DOI: 10.1016/j.jhazmat.2021.126565

Abstract

Formaldehyde emission is an intrinsic property derived from aldehyde-based resin that is used in wood-based composites. To reduce formaldehyde emission from plywood, the composite catalyst of tourmaline-titanium dioxide (T-TiO₂) was fabricated by the sol-gel method. Furthermore, the impregnated paper loaded with the T-TiO₂ composite catalyst was used to decorate the surface of 5-layer poplar plywood. The physicochemical structure, photocatalytic activity of T-TiO₂ composite catalyst and its mechanism of degrading gaseous formaldehyde and generating air negative ions were assessed. The results discovered that the synergistic influence of the tourmaline and TiO₂ anatase nanocrystals achieved good photodegradation of the gaseous formaldehyde. The neat T(20%)-TiO₂ catalyst offered a higher formaldehyde removal efficiency (92.2%) than other catalysts, possessing 800 ions/cm³ of air negative ions concentration after 10-h visible light irradiation. The poplar plywood with a load of 3% T(20%)-TiO₂ catalyst can stably induce the degradation formaldehyde into air negative ions with a concentration of 1200 ions/cm³ in visible light. The impregnation process of paper was feasible to be industrialized and the decorated wood-based composites can be widely applied in the furniture industry.

Keywords: Air negative ions; Air pollution; Environmental hazards; Formaldehyde; Impregnated paper; Surface decorated plywood.

Publication types

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

MeSH terms

Formaldehyde
Interior Design and Furnishings*
Silicates
Titanium*

Substances

Silicates
tourmaline
titanium dioxide
Formaldehyde
Titanium