Application of air plasma-activated water disinfection
- VernacularTitle:空气等离子体活化水消毒应用研究
- Author:
Yueye HUANG
1
;
Jun CHENG
;
Mingtao QIN
;
Lei DUAN
;
Shicong HUANG
;
Zhitong CHEN
;
Hua JI
Author Information
- Publication Type:Journal Article
- Keywords: air plasma; activated liquid; discharge process; reactive species; disinfection
- From: Journal of Xi'an Jiaotong University(Medical Sciences) 2025;46(1):59-67
- CountryChina
- Language:Chinese
- Abstract: Objective This study focused on the preparation of air plasma-activated water and its application in the field of disinfection.By developing single-layer and double-layer dielectric barrier discharge(DBD)devices,we aimed to prepare plasma-activated liquid with high-efficiency disinfection ability.Methods We constructed single-layer and double-layer DBD devices using air as the working gas to generate activated water.The plasma temperature variation,discharge process and emission spectrum were captured and analyzed by a thermal imager,a time-resolved enhanced camera and a high-resolution spectrometer to evaluate the efficient energy conversion and particle excitation capabilities of the device.In addition,disinfection experiments were conducted on typical microorganisms such as Bacillus subtilis,Escherichia coli and Staphylococcus aureus to verify the disinfection effect of the activation solution.Results We adjusted the plasma treatment time for accurate disinfection of typical microorganisms such as Bacillus subtilis,Escherichia coli,and Staphylococcus aureus.Compared with a single-layer DBD device,the double-layer DBD device could produce higher concentrations of reactive species,significantly improving the disinfection effect of the activated liquid.Conclusion By using the air plasma activated water technology,an activated solution with highly efficient disinfection capability was successfully prepared.This study not only improves the disinfection efficiency,but also has potential environmental friendliness and economy,which provides a scientific basis and technical support for the application of plasma technology in the field of disinfection.
