Abstract
The development of high-efficiency photocatalysts is the primary goal in the field of photocatalytic an-tibacterial research.In this work,the GaN∶ZnO solid solution nanoparticles (NPs) photocatalyst with strong visible absorption and large specific surface area was synthesized via the sol-gel and nitridation reaction process.Also,we systematically investigated the removal efficiency of the organic pollutant and antibacterial activity on E.coli and S.aureus.Notably,methylene blue solution could be completely de-graded after 100 min of visible light illumination using 2 mg/mL GaN∶ZnO catalyst.Moreover,-94％ of the E.coli were inactivated within 120 min,whereas 100％ antibacterial activity against S.aureus was achieved after 90 min of visible light illumination mediated by GaN∶ZnO NPs.We further explore the potential mechanism of visible light photocatalytic antibacterial activity enhanced by GaN∶ZnO NPs photocatalyst.The current work not only provides a new and efficient photocatalytic antibacterial nanomaterial but also demonstrates its promising applications in environmental and biological fields.
基金项目
National Natural Science Foundation of China(51702326)
National Natural Science Foundation of China(1872332)
National Natural Science Foundation of China(51901227)
Liaoning Province Natural Science Foundation(2019-MS-333)
National Key Research and Development Program of China(2018YFC1105504)
NETL
NSTL
万方数据