title: The antibacterial activity of ceramsite coated by silver nanoparticles in micropore.
abstract: In the present study, ceramsite was combined with silver nanoparticles (AgNPs) to fabricate a new nanocomposite for water disinfection. The ceramsite was prepared by fly ash, straw ash, and cement. AgNPs were synthesized using polyvinylpyrrolidone (PVP) as the capping agent. The nanocomposite was prepared by self-aggregation of AgNPs on the surface of the ceramsite. AgNPs capped with PVP can form a thin film on the surface of micropore in ceramsite. The nanocomposite can inhibit bacteria growth and induce damage of the cell membrane of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Therefore, the nanocomposite is a new material which can be used for disinfection in drinking water.
authors.affiliation: State Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin, China, qiushanh@sohu.com.
authors.forename: Shan
authors.initials: S
authors.lastname: Qiu
authors.forename: Xu
authors.initials: X
authors.lastname: Huang
authors.forename: Shanwen
authors.initials: S
authors.lastname: Xu
authors.forename: Fang
authors.initials: F
authors.lastname: Ma
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D004926:Escherichia coli / Q000254:growth & development*; D053768:Metal Nanoparticles / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000254:growth & development*
chemical_list: D000900:Anti-Bacterial Agents; D012834:Silver