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Chemosphere

Title:		Acetaldehyde gas removal by a nylon film-TiO(2) composite sheet prepared on a paper surface using interfacial polymerization and electrostatic interactions
Author(s):		Ichiura H; Seike T; Kozu A;
Address:		"Faculty of Agriculture, Kochi University, 200 Monobe-Otsu, Nankoku, Kochi, 783-8502, Japan. Electronic address: ichiura@kochi-u.ac.jp. Faculty of Agriculture, Kochi University, 200 Monobe-Otsu, Nankoku, Kochi, 783-8502, Japan"
Journal Title:		Chemosphere
Year:		2020
Volume:		20200523
Issue:
Page Number:		127143 -
DOI:		10.1016/j.chemosphere.2020.127143
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"In this study, preparation of a nylon film-TiO(2) composite sheet with both physical durability under UV irradiation and TiO(2) photocatalysis functionality was investigated. First, a nylon film was directly prepared on paper by interfacial polymerization using ethylenediamine and terephthaloyl chloride in a cyclohexane-chloroform mixture (3:1, v/v). Next, the nylon-coated paper was treated with tetraethyl orthosilicate and 3-aminopropyltrimethoxysilane to prepare polysiloxane on its surface. This was followed by fixation of TiO(2) powder via electrostatic interactions with the polysiloxane. Although nylon films on paper usually decompose under TiO(2) photocatalysis, the nylon film-TiO(2) composite sheets prepared using 0.5%-1.0% (w/v) TiO(2) did not decompose under photocatalysis. The residual rate of strength of the sheet remained at almost 100% after 240 h, which could be attributed to protection of the sheet by the polysiloxane layer. The nylon film was fibrous and could effectively adsorb acetaldehyde gas. All of the nylon film-TiO(2) composite sheets prepared using 0.5%-5.0% TiO(2) photocatalytically removed acetaldehyde under UV irradiation and no acetaldehyde gas was detected after 240-300 min. These results show the nylon film-TiO(2) composite sheet can effectively remove acetaldehyde gas by photocatalysis and adsorption and could be applied to removal of volatile organic compounds in indoor air"
Keywords:		"Acetaldehyde/*analysis Adsorption Air Pollution, Indoor/*analysis Catalysis Nylons/*chemistry *Photochemical Processes Polymerization Siloxanes/chemistry Static Electricity Titanium/chemistry Ultraviolet Rays Volatile Organic Compounds/*analysis Electrost;"
Notes:		"MedlineIchiura, Hideaki Seike, Takenori Kozu, Ayako eng England 2020/05/31 Chemosphere. 2020 Oct; 256:127143. doi: 10.1016/j.chemosphere.2020.127143. Epub 2020 May 23"