Pd修饰片状硼掺杂二氧化钛(B/TiO_(2))纳米材料制备及对病原菌的防治

Preparation of Pd Modified Flake Boron Doped Titanium Dioxide(B/TiO_(2))Nano Materials and Its Prevention and Treatment of Pathogens

采用溶剂热法制备出不同比例的Pd修饰硼掺杂TiO_(2)纳米复合材料(Pd-B/TiO_(2)),通过非金属掺杂和纳米钯修饰对TiO_(2)进行改性,弥补TiO_(2)自身缺点,增强其可见光响应范围,提高其光催化反应能力。测试了Pd-B/TiO_(2)纳米复合材料可见光下对大肠杆菌的杀灭效果。结果显示,Pd-B/TiO_(2)纳米复合材料能够有效杀灭大肠杆菌,其中7%Pd-B/TiO_(2)纳米复合材料在40 mW/cm2可见光照射下,2 h内可将10^(7) CFU/mL大肠杆菌完全杀灭。

Different proportions of Pd modified boron doped TiO_(2) nano composites(Pd-B/TiO_(2))are prepared by solvothermal method.TiO_(2) is modified by non-metallic doping and nano palladium modification to make up for the shortcomings of TiO_(2),enhance its visible light response range,improve its photocatalytic reaction ability.The killing effect of Pd-B/TiO_(2) nano composites on Escherichia coli under visible light is tested.The results show that Pd-B/TiO_(2) nano composites can effectively kill E.coli,and 7%Pd-B/TiO_(2) nano composites can completely kill 10^(7) CFU/mL E.coli within 2 h under 40 mW/cm2 visible light irradiation.