Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method

碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 98 === The study intends to understand the effectiveness of degradation of ammonia gas by photocatalysis of titanium oxide (TiO2). First of all, TEM and XRD are used to observe the particle size and structure of TiO2 nanopowder, Degussa P25 respectively. After...

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Main Authors: Guei-Jung Lin, 林桂忠
Other Authors: 卓清松
Format: Others
Language:zh-TW
Published: 2010
Online Access:http://ndltd.ncl.edu.tw/handle/m3d98f
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spelling ndltd-TW-098TIT057030662019-05-15T20:33:25Z http://ndltd.ncl.edu.tw/handle/m3d98f Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method 電泳沉積應用於奈米二氧化鈦之光催化性能研究 Guei-Jung Lin 林桂忠 碩士 國立臺北科技大學 能源與冷凍空調工程系碩士班 98 The study intends to understand the effectiveness of degradation of ammonia gas by photocatalysis of titanium oxide (TiO2). First of all, TEM and XRD are used to observe the particle size and structure of TiO2 nanopowder, Degussa P25 respectively. After that, TiO2 nanopowder film is deposited on a stainless steel substrate by electrophoretic deposition (EPD). Different electric field intensities, solvents, suspension concentrations and temperatures are the parameters of electrophoretic experiment. Film thickness gauge is used to observe the deposition situation of TiO2 thin film under different parameters. After that, SEM and EDS are used to observe the surface distribution of the deposited thin film and the situation of its ingredients after high-temperature sintering. In the photocatalytic experiment, ultra violet / visible light spectrophotometer is used as an instrument to inspect ammonia gas all through the experiment. The study explores the effects of vaporization of ammonia water of different concentrations, different heat treatment temperatures of thin films and different deposition thicknesses on photocatalysis of ammonia gas. Experiment result shows that the deposited TiO2 thin film can be controlled by EPD parameters. However, it is found that with the thickness increase of the deposited TiO2 thin film, the cracks on the surface enlarges accordingly, thus being disadvantageous to EPD for a long time. Besides, as shown from the result of photocatalytic experiment, when the temperature of heat treatment is 400oC, the photocatalytic effect of TiO2 thin film can reach 17%. With the thickness increase of the deposited thin film, the contact of ammonia gas with the surface area of thin film is increased, and its photocatalytic effect can reach 24.2%. Finally, it can be found that when the concentration of TiO2 thin film is further reduced, the photocatalytic effect is the best, achieving 26.7%. By means of EPD, the study is able to rapidly control the preparation of deposited TiO2 thin film, and effectively degrade ammonia gas. In future, EPD can be applied to purify air and improve the environmental quality. 卓清松 2010 學位論文 ; thesis 86 zh-TW
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language zh-TW
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description 碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 98 === The study intends to understand the effectiveness of degradation of ammonia gas by photocatalysis of titanium oxide (TiO2). First of all, TEM and XRD are used to observe the particle size and structure of TiO2 nanopowder, Degussa P25 respectively. After that, TiO2 nanopowder film is deposited on a stainless steel substrate by electrophoretic deposition (EPD). Different electric field intensities, solvents, suspension concentrations and temperatures are the parameters of electrophoretic experiment. Film thickness gauge is used to observe the deposition situation of TiO2 thin film under different parameters. After that, SEM and EDS are used to observe the surface distribution of the deposited thin film and the situation of its ingredients after high-temperature sintering. In the photocatalytic experiment, ultra violet / visible light spectrophotometer is used as an instrument to inspect ammonia gas all through the experiment. The study explores the effects of vaporization of ammonia water of different concentrations, different heat treatment temperatures of thin films and different deposition thicknesses on photocatalysis of ammonia gas. Experiment result shows that the deposited TiO2 thin film can be controlled by EPD parameters. However, it is found that with the thickness increase of the deposited TiO2 thin film, the cracks on the surface enlarges accordingly, thus being disadvantageous to EPD for a long time. Besides, as shown from the result of photocatalytic experiment, when the temperature of heat treatment is 400oC, the photocatalytic effect of TiO2 thin film can reach 17%. With the thickness increase of the deposited thin film, the contact of ammonia gas with the surface area of thin film is increased, and its photocatalytic effect can reach 24.2%. Finally, it can be found that when the concentration of TiO2 thin film is further reduced, the photocatalytic effect is the best, achieving 26.7%. By means of EPD, the study is able to rapidly control the preparation of deposited TiO2 thin film, and effectively degrade ammonia gas. In future, EPD can be applied to purify air and improve the environmental quality.
author2 卓清松
author_facet 卓清松
Guei-Jung Lin
林桂忠
author Guei-Jung Lin
林桂忠
spellingShingle Guei-Jung Lin
林桂忠
Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method
author_sort Guei-Jung Lin
title Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method
title_short Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method
title_full Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method
title_fullStr Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method
title_full_unstemmed Research on Analysis of Nano TiO2 Photocatalyst by Electrophoretic Deposition Method
title_sort research on analysis of nano tio2 photocatalyst by electrophoretic deposition method
publishDate 2010
url http://ndltd.ncl.edu.tw/handle/m3d98f
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