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Preparation and Performance Study of Antibacterial Materials Based on GO−TiO 2
Author(s) -
Li Hongxia,
Wu Jie,
Gao Xiang,
Li Tiantian,
Zhang Mengmeng,
Niu Xiaohui,
Zhang Deyi,
Wang Yi,
Fan Haiyan,
Wang Kunjie
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202101404
Subject(s) - hydrothermal circulation , graphene , composite number , oxide , nanomaterials , materials science , titanium oxide , antibacterial activity , titanium , hydrothermal synthesis , mixing (physics) , hydrothermal reaction , chemical engineering , nanotechnology , composite material , bacteria , metallurgy , physics , quantum mechanics , biology , engineering , genetics
A composite of graphene oxide (GO) and titanium (IV) oxide was prepared through a hydrothermal treatment by mixing TiO 2 with GO. The GO was obtained by using an improved Hummers’ method. The composite (TiO 2 ‐GO) only indicated a weak antibacterial effect against Escherichia coli under dark conditions. Upon introduction of silver‐based nanomaterials, two new composites viz. GO−TiO 2 −Ag and GO−TiO 2 −Ag 2 S were prepared also through hydrothermal reaction. While both composites exhibit stronger antibacterial activities against E. coli than TiO 2 ‐GO in dark, GO−TiO 2 −Ag composite exhibited higher bactericidal rate (92 %) than GO−TiO 2 −Ag 2 S (40 %).
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