{"title":"γ-辐照法合成的Ag/TiO2在可见光下降解甲基红","authors":"Vo Thi Thu Nhu, N. Q. Hien","doi":"10.1109/GTSD.2016.66","DOIUrl":null,"url":null,"abstract":"Commercial TiO<sub>2</sub> (P25) doped with metallic silver nanoparticles was prepared by γ-irradiation method. The size of silver nanoparticles (AgNPs) was determined by transmission electron microscopy (TEM) to be of 1-2 nm. The photo-catalytic degradation of azo dye Metyl Red (MR) in the aqueous suspensions of TiO<sub>2</sub> and Ag/TiO<sub>2</sub> under visible light was carried out to evaluate the photo-catalytic activity. Results showed that Ag/TiO<sub>2</sub> was found to enhance higher photo-degradation efficiency of Metyl Red (72%) than those of commercial P25-TiO<sub>2</sub> (23%). Thus, γ-irradiation method can be suitably applied to prepare photo-catalyst of TiO<sub>2</sub> doped with siver nanoparticles with highly photo-catalytic activity under visible light.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Photodegradation of Methyl Red under Visible Light Using Ag/TiO2 Synthesized by γ- Irradiation Method\",\"authors\":\"Vo Thi Thu Nhu, N. Q. Hien\",\"doi\":\"10.1109/GTSD.2016.66\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Commercial TiO<sub>2</sub> (P25) doped with metallic silver nanoparticles was prepared by γ-irradiation method. The size of silver nanoparticles (AgNPs) was determined by transmission electron microscopy (TEM) to be of 1-2 nm. The photo-catalytic degradation of azo dye Metyl Red (MR) in the aqueous suspensions of TiO<sub>2</sub> and Ag/TiO<sub>2</sub> under visible light was carried out to evaluate the photo-catalytic activity. Results showed that Ag/TiO<sub>2</sub> was found to enhance higher photo-degradation efficiency of Metyl Red (72%) than those of commercial P25-TiO<sub>2</sub> (23%). Thus, γ-irradiation method can be suitably applied to prepare photo-catalyst of TiO<sub>2</sub> doped with siver nanoparticles with highly photo-catalytic activity under visible light.\",\"PeriodicalId\":340479,\"journal\":{\"name\":\"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)\",\"volume\":\"39 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GTSD.2016.66\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GTSD.2016.66","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
采用γ辐照法制备了金属银纳米粒子掺杂的商用TiO2 (P25)。透射电镜(TEM)测定银纳米颗粒(AgNPs)的尺寸为1 ~ 2 nm。在可见光下对偶氮染料meyl Red (MR)在TiO2和Ag/TiO2水悬浮液中的光催化降解性能进行了研究。结果表明，Ag/TiO2对甲基红的光降解效率(72%)高于商用P25-TiO2(23%)。因此，在可见光下，γ-辐照法制备了具有高光催化活性的掺杂银纳米粒子的TiO2光催化剂。
Photodegradation of Methyl Red under Visible Light Using Ag/TiO2 Synthesized by γ- Irradiation Method
Commercial TiO2 (P25) doped with metallic silver nanoparticles was prepared by γ-irradiation method. The size of silver nanoparticles (AgNPs) was determined by transmission electron microscopy (TEM) to be of 1-2 nm. The photo-catalytic degradation of azo dye Metyl Red (MR) in the aqueous suspensions of TiO2 and Ag/TiO2 under visible light was carried out to evaluate the photo-catalytic activity. Results showed that Ag/TiO2 was found to enhance higher photo-degradation efficiency of Metyl Red (72%) than those of commercial P25-TiO2 (23%). Thus, γ-irradiation method can be suitably applied to prepare photo-catalyst of TiO2 doped with siver nanoparticles with highly photo-catalytic activity under visible light.
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