聚吡咯包裹WO_(3-x)纳米粒子的制备及光动力光热和杀菌性能  

Preparation and Photodynamic and Photothermal Bactericidal Properties of Polypyrrole-encapsulated WO_(3-X) Nanoparticle

作　　者：祁星瑞 靳焘[1,2,3,4,5,6] QI Xingrui;JIN Tao(Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;University of Chinese Academy of Sciences,Beijing 100049,China;CAS Testing Technical Services(Guangzhou)Co.Ltd.,Guangzhou 510650,China;CAS Engineering Laboratory for Special Fine Chemicals,Guangzhou 510650,China;CASH GCC Shaoguan Research Institute of Advanced Materials,Shaoguan 512400,China;CASH GCC(Nanxiong)Research Institute of Advanced Materials Co.,Ltd.,Shaoguan 512400,China)

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院大学,北京100049 [3]中科检测技术服务(广州)股份有限公司,广东广州510650 [4]中国科学院新型特种精细化学品工程实验室,广东广州510650 [5]国科广化韶关新材料研究院,广东南雄512400 [6]国科广化(南雄)新材料研究院有限公司,广东南雄512400

出　　处：《广州化学》2024年第1期67-70,I0004,共5页Guangzhou Chemistry

摘　　要：利用氯化钨和吡咯等原料通过溶剂热法和原位还原制备了聚吡咯包裹的WO_(3-x)纳米粒子。用扫描电镜和红外光谱表征了复合材料,通过单线态氧生成能力、光热测试和体外杀菌实验,对比了聚吡咯包裹前后WO_(3-x)纳米粒子的光动力光热和杀菌性能。结果表明,得到的聚吡咯包裹的WO_(3-x)纳米粒子复合材料在808 nm照射下具有较好的单线态氧生成能力及光热性能。体外杀菌实验证明了其对革兰氏阳性菌和革兰氏阴性菌具有优秀的杀菌性能,对金黄色葡萄球菌和大肠杆菌的杀菌率分别为99.89%和99.71%。Polypyrrole-encapsulated WO_(3-x) nanoparticles were prepared by solvothermal method and in situ reduction using raw materials such as tungsten chloride and pyrrole.The composites were characterised by scanning electron microscopy and infrared spectroscopy,and the bactericidal properties of polypyrrole-encapsulated WO_(3-x) nanoparticles before and after polypyrrole encapsulation were compared by in vitro bactericidal assay,single-linear oxygen generation capacity and photothermal test.The results show that the obtained polypyrrole-encapsulated WO_(3-x) nanoparticles composites have better single-linear oxygen generation capacity and photothermal performance under 808 nm irradiation.The in vitro bactericidal experiments demonstrated the excellent bactericidal properties against Gram-positive and Gram-negative bacteria,with 99.89%and 99.71%bactericidal rates against Staphylococcus aureus and Escherichia coli,respectively.

关 键 词：氧化钨 聚吡咯 光动力 光热 杀菌 

分 类 号：O69[理学—化学]