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Plasmon enhanced photocatalytic and antimicrobial activities of Ag-TiO2 nanocomposites under visible light irradiation prepared by DBD cold plasma treatment.
Dong, Peimei; Yang, Fangfang; Cheng, Xudong; Huang, Zhengfeng; Nie, Xiaoxiao; Xiao, Yonghong; Zhang, Xiwen.
Afiliación
  • Dong P; State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
  • Yang F; School of Pharmaceutical Biotechnology, Zhejiang University, Hangzhou 310027, China.
  • Cheng X; State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
  • Huang Z; State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
  • Nie X; State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
  • Xiao Y; State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of Medical College, Zhejiang University, 310003, China.
  • Zhang X; State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China. Electronic address: zhangxw@zju.edu.cn.
Mater Sci Eng C Mater Biol Appl ; 96: 197-204, 2019 Mar.
Article en En | MEDLINE | ID: mdl-30606525
ABSTRACT
Silver nanoparticles (Ag NPs) have been deposited on powder P25 by a novel two-step method involving a precipitation reaction and atmospheric pressure dielectric barrier discharge (DBD) cold plasma treatment without the use of any environmentally and biologically hazardous reducing agents. The silver precursor is formed in the processing of precipitation reaction and then completely reduced to the metallic state by atmospheric pressure DBD cold plasma treatment as proved by X-ray photoelectron spectroscopy, UV-Visible absorption spectra and HRTEM analyses. TEM images indicate that the Ag NPs with average diameter of 3.7 nm were deposited on powder P25 with high dispersion although no reducing agents, stabilizers or surfactants were used. The prepared products show remarkable improvement for methylene blue (MB) photodegradation and effective inhibition of bacterias against Escherichia coli and Staphylococcus aureus.
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Texto completo: 1 Base de datos: MEDLINE Asunto principal: Plata / Staphylococcus aureus / Titanio / Escherichia coli / Nanocompuestos / Procesos Fotoquímicos / Gases em Plasma / Luz / Antiinfecciosos Idioma: En Revista: Mater Sci Eng C Mater Biol Appl Año: 2019 Tipo del documento: Article País de afiliación: China
Texto completo
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Texto completo: 1 Base de datos: MEDLINE Asunto principal: Plata / Staphylococcus aureus / Titanio / Escherichia coli / Nanocompuestos / Procesos Fotoquímicos / Gases em Plasma / Luz / Antiinfecciosos Idioma: En Revista: Mater Sci Eng C Mater Biol Appl Año: 2019 Tipo del documento: Article País de afiliación: China