One-step deposition of nano-Ag-TiO2 coatings by atmospheric pressure plasma jet for water treatment: Application to trace pharmaceutical removal using solar photocatalysis

Tao Peng*, Jerome Pulpytel, Inna Horovitz, Abhay Kumar Jaiswal, Dror Avisar, Hadas Mamane, Jerald Anthony Lalman, Farzaneh Arefi-Khonsari

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

In this study, micrometer thick Ag-TiO2 coatings were deposited in a single and facile step by spraying the precursor in an atmospheric pressure plasma jet with different concentrations of Ag nanoparticles. The homogenous distribution of Ag decreased the TiO 2 crystal size and increased the surface area. The coatings were characterized to be porous with an anatase phase with improved charge separation and visible light absorption. The photocatalytic activity of the materials was investigated for degrading rhodamine B using a white lamp as a screening method to optimize Ag-TiO 2 coatings. Then the photodegradation of trace pharmaceutical compounds (TrPCs) was investigated by using a solar light simulator at the optimal condition of a TiO 2 coating with 0.4wt% Ag.

Original languageEnglish
Article number1800213
JournalPlasma Processes and Polymers
Volume16
Issue number6
DOIs
StatePublished - Jun 2019

Funding

FundersFunder number
Sorbonne Mitacs Program
Seventh Framework Programme
Mitacs

    Keywords

    • Ag nanoparticles
    • TiO
    • atmospheric pressure plasma jet
    • solar photocatalysis
    • trace pharmaceutical compounds removal
    • water treatment

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