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Finishing of cotton fabrics with aqueous nano‐titanium dioxide dispersion and the decomposition of gaseous ammonia by ultraviolet irradiation
Author(s) -
Dong Yongchun,
Bai Zhipeng,
Zhang Liwen,
Liu Ruihua,
Zhu Tan
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22476
Subject(s) - titanium dioxide , materials science , dispersion (optics) , decomposition , aqueous solution , photocatalysis , ammonia , scanning electron microscope , nano , chemical engineering , silicone , composite material , irradiation , nuclear chemistry , chemistry , organic chemistry , catalysis , optics , physics , nuclear physics , engineering
An aqueous dispersion of nano‐titanium dioxide (nano‐TiO 2 ) was prepared and mixed with a silicone softener to establish a finishing bath. Cotton fabrics were treated with this finishing bath with a pad–dry–cure process and were then characterized by X‐ray diffraction and scanning electron microscopy. The gaseous ammonia was derived from an environmental condition simulated chamber. The specifically designed photocatalytic reactor was used to assess the factors, including the dosage of the aqueous dispersion of nano‐TiO 2 , the nature of the fabric, the direct dye, and the water‐repellent agent, that affected the decomposition efficiency of ammonia in air. In addition, nano‐TiO 2 ‐finished fabrics were evaluated with respect to whiteness and breaking tension properties. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 286–291, 2006