Facile preparation of TiO2/ZnO composite aerogel with excellent antibacterial activities

Hao Suo, Changxin Peng, Feng Jing, Shuwen Yu, Sheng Cui, Xiaodong Shen

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

TiO2/ZnO composite aerogel is synthesized using Zn(NO3)2·H2O and titanium butoxide as precursors through sol-gel route combined with C2H5OH superfluid drying technique. The effects of the Zn2+/Ti4+ molar ratios and concentration on the antibacterial properties of TiO2/ZnO composite aerogels are investigated. The results show that the specific surface area is as high as 180 m2/g for the samples with the Zn2+/Ti4+ molar ratios of 1.5. The composite aerogels have the maximum inhibition zone of 23 nm and 19.5 nm for E. coli and S. aureus, and the minimum inhibitory concentration for E. coli and S. aureus of 100 ppm.

Original languageEnglish
Pages (from-to)253-256
Number of pages4
JournalMaterials Letters
Volume234
DOIs
StatePublished - 1 Jan 2019

Keywords

  • Antibacterial
  • Composite materials
  • Nanocomposites
  • Sol-gel preparation
  • TiO

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