Tightly-coated and easily recyclable Ag@AgBr-cotton hybrid photocatalyst for organic dye degradation under visible light

Immobilization of photocatalysts on substrates is an important factor for water purification in practical applications. In this study, an efficient Ag@AgBr photocatalytic coating was attached onto the surface of cotton fabric via radiation-induced graft polymerization and subsequent chemical reactio...

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Bibliographic Details
Published inCellulose (London) Vol. 27; no. 17; pp. 10047 - 10060
Main Authors Wang, Minglei, Zhang, Maojiang, Gao, Qianhong, Liu, Yinjie, Zhang, Mingxing, Shen, Rongfang, Zhang, Yumei, Hu, Jiangtao, Wu, Guozhong
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.11.2020
Springer Nature B.V
Subjects
Bioorganic Chemistry
Bromine
Catalytic activity
Ceramics
Chemical reactions
Chemistry
Chemistry and Materials Science
Coating
Composites
Cotton
Cotton fabrics
Dyes
Glass
Light irradiation
Natural Materials
Organic Chemistry
Original Research
Photocatalysis
Photocatalysts
Photodegradation
Physical Chemistry
Polymer Sciences
Radiation effects
Silver
Substrates
Sustainable Development
Wastewater treatment
Water purification
Photodegradation
Durability
Ag@AgBr
Radiation-induced grafted polymerization
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Summary:Immobilization of photocatalysts on substrates is an important factor for water purification in practical applications. In this study, an efficient Ag@AgBr photocatalytic coating was attached onto the surface of cotton fabric via radiation-induced graft polymerization and subsequent chemical reactions, and the resultant product was denoted as Cot-Ag@AgBr. The graft chains acted not only as a source of bromine, but also as an intermediate layer to anchor the Ag@AgBr photocatalytic coating via strong electrostatic interactions. The immobilized Ag@AgBr photocatalytic coating exhibited outstanding photocatalytic properties for organic dye degradation under visible light irradiation. Furthermore, Cot-Ag@AgBr presented high stability and robust durability, which conferred its excellent visible-light-driven photocatalytic activity after five rounds of photodegradation. After 10 min of ultrasonication, the amount of Ag@AgBr precipitate that leached from the Cot-Ag@AgBr was < 2%. Therefore, the as-synthesized cotton fabric offered good insight into the functionalization of polymer substrates with photocatalysts and could be useful for advanced wastewater treatment under the cyclic operations.
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-020-03453-7