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dc.contributor.author翁冠羽en_US
dc.contributor.authorWeng, Guan-Yuen_US
dc.contributor.author林明璋en_US
dc.date.accessioned2015-11-26T00:57:04Z-
dc.date.available2015-11-26T00:57:04Z-
dc.date.issued2015en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#GT070252508en_US
dc.identifier.urihttp://hdl.handle.net/11536/126878-
dc.description.abstract研究InN與TiO2奈米粒子,利用sol-gel與hydrothermal合成不同粒徑大小的TiO2與InN奈米粒子化合物,藉由XRD、SEM、TEM、UV-Vis分析粒子組成方式與光學特性。 組成兩種不同奈米粒子,粒徑較小的InN吸附在TiO2上稱為InN: TiO2反之為粒徑較小的TiO2吸附在InN上稱為TiO2:InN,並探討兩種不同組成方式的化合物光電和光催化反應的特性。 InN: TiO2經UV-Vis圖譜觀察到吸收範圍從390 nm延伸至800 nm,然而於放射汙染物質Methyl Orange (MO)在氙燈下進光催化能力測試,卻沒有任何反應,在photoluminescence (PL) 230 nm激發下沒有任何放光訊號產生。TiO2:InN光吸收與InN: TiO2結果相似,在390 nm與500 nm間的吸收些微降低,在PL 230nm激發測量下,存在一個較寬的訊號於325 nm與410 nm之間與分別佇立在425 nm與480 nm兩根尖銳的訊號,在氙燈下進行光催化能力測試,結果媲美純TiO2。zh_TW
dc.description.abstractIn this study the nanoparticles (NPs) of InN, TiO2 and their composites of varying sizes have been synthesized by hydrothermal and sol-gel methods and characterized with different analytical techniques including XRD, SEM, TEM and optical absorption spectroscopy. Two different composite NPs with smaller InN adsorbed on larger TiO2 NPs (InN:TiO2) and vice versa (TiO2:InN) have been fabricated and studied for their opto-electronic and photo-catalytic properties. The former was found to have a very broad UV-Vis absorption spectrum extending from 390 nm to much beyond 800 nm; however, no photo-catalytic activity was observed under the irradiation of a Xe-lamp and no photo- luminescence (PL) was detected upon excitation at 230 nm. On the other hand, the latter composite was found to have a similar but a smaller absorption between 390 nm and 500 nm, with an increasing absorptivity at longer wavelengths. In addition, the TiO2:InN composite was found to exhibit a broad PL peak between 325 and 410 nm together with two sharper ones at 425 nm and 480 nm upon excitation at 230 nm. The photo-catalytic activity of the TiO2:InN composite NPs was found to be similar to that of pure TiO2 NPs under Xe-lamp irradiation.en_US
dc.language.isozh_TWen_US
dc.subject二氧化鈦zh_TW
dc.subject氮化銦zh_TW
dc.subject可見光吸收zh_TW
dc.subject光催化zh_TW
dc.subjectInNen_US
dc.subjectTiO2en_US
dc.subjectLEDen_US
dc.titleTiO2:InN奈米粒子化合物的研究zh_TW
dc.titleA study on TiO2:InN nanoparticle compositesen_US
dc.typeThesisen_US
dc.contributor.department應用化學系碩博士班zh_TW
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