Highly efficient visible-light photocatalytic degradation and antibacterial activity by GaN∶ZnO solid solution nanoparticles

• 作者: Bing Leng Xinglai Zhang Shanshan Chen Jing Li Ziqing Sun Zongyi Ma Wenjin Yang Bingchun Zhang Ke Yang Shu Guo
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2021,（35）
• 页码范围: 67-76
• 页数: 10页
• 语种: 英文

摘要

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.