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研究生：	張歐穰 Chang-Ou, Jang
論文名稱：	應用於可見光下分解水之In1-xNixMO4 ( M = Nb, Ta; x = 0, 0.1, 0.3 )光觸媒之製備與特性研究 Synthesis and properties of In1-xNixMO4 ( M = Nb, Ta ; x = 0, 0.1, 0.3 ) photocatalysts applied under visible light for water splitting
指導教授：	黃啟祥 Huang, Chi-Shiang
學位類別：	碩士 Master
系所名稱：	工學院 - 材料科學及工程學系 Department of Materials Science and Engineering
論文出版年：	2005
畢業學年度：	93
語文別：	中文
論文頁數：	70
中文關鍵詞：	InNiTaO4 、光觸媒、含浸法、可見光、分解水
外文關鍵詞：	InNiTaO4, photocatalyst, impregnation method, water splitting, visible light
相關次數：	點閱：71 下載：1
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　　晶體為wolframite結構之InTaO4光觸媒粉末可在可見光的波長下受光激發而將水分解為氫氣與氧氣。為改善此晶體結構的觸媒特性，本研究藉由固態法與含浸法製備雜Ni的In1-xNixTaO4光觸媒粉末，並檢討其微結構與分解水之效率。
　　In1-xNixTaO4光觸媒粉末在可見光的照射之下，其分解水之效率，會隨著煆燒持溫時間的增加而增加、隨著分解水反應溫度之增加而增加、隨著分解水反應時間的增加而降低；在起始的三到五個小時內有最佳分解效率。整體而言，含浸法製備之光觸媒粉末比固態法有較佳之分解水效率。在40℃下反應5個小時後，以含浸法製備之In1-xNixTaO4粉末可分解水產生110μmole之氣體，此為本研究中最佳之數據。
　　經由X光繞射分析，得知以含浸法雜Ni之In1-xNixTaO4粉末比固態法有較多雜的Ni進入晶格並取代In，此結果應是導致含浸法粉末有較佳分解水效率之主要因素。

　An InTaO4 photocatalyst with wolframite structure can split water into oxygen and hydrogen under visible light irradiation. In order to improve the catalytic properties of this catalyst, In1-xNixTaO4 photocatalysts were synthesized by solid state method and impregnation method. The microstructure and efficiency of water-splitting of these photocatalysts were investigated.
　The efficiency of water-splitting of In1-xNixTaO4 photocatalysts under visible light irradiation increases as increasing soaking time of calcinations and increasing reaction temperation, decreases as continuous reaction time of water-splitting, and shows better efficiency at beginning 5 h. In this research, photocatalysts prepared by impregnation show better efficiency than by solid state method one. The best result of gas evolved from water-splitting is 110μmole of In1-xNixTaO4 photocatalysts synthesized by impregnation method react under visible light irradiation at 40℃ for 5 h.
　By the x-ray diffraction analysis, we know that there are more Ni doped into In1-xNixTaO4 and substituted In site when prepared by impregnation method than by solid state method. This may leads to better efficiency of water-splitting of photocatalysts prepared by impregnation method.

中文摘要………………………………………………………………Ⅰ
英文摘要………………………………………………………………Ⅱ
目錄……………………………………………………………………Ⅲ
表目錄…………………………………………………………………VII
圖目錄…………………………………………………………………VIII
第一章 緒論……………………………………………………………1
第二章 理論基礎與文獻回顧…………………………………………6
  2-1 觸媒特質……………………………………………………………6
  2-2 光觸媒特質…………………………………………………………6
  2-3 光觸媒分類…………………………………………………………7
    2-3-1 紫外光光觸媒……………………………………………………7
2-3-1-1二氧化鈦光觸媒（TiO2）……………………………………8
2-3-1-2 氧化鋅光觸媒（ZnO）………………………………………8
2-3-1-3 硫化鎘光觸媒（CdS）………………………………………9
2-3-1-4 Sr2M2O7（M = Nb, Ta）光觸媒………………………………9
    2-3-2 可見光光觸媒……………………………………………………9
      2-3-2-1 改質二氧化鈦光觸媒（modified TiO2）……………………9
      2-3-2-2 NiM2O6（M = Ta, Nb）光觸媒………………………………10
      2-3-2-3 改質硫化鋅光觸媒（modified ZnS）…………………………10
      2-3-2-4 改質氧化鎢光觸媒（modified WO3）………………………10
      2-3-2-5 TaON光觸媒……………………………………………………10
  2-4 光觸媒作用機制……………………………………………………10
    2-4-1 半導體特性………………………………………………………10
    2-4-2光觸媒作用原理與過程…………………………………………11
    2-4-3光觸媒材料的設計………………………………………………11
    2-4-4 摻雜過渡金屬離子於光觸媒的特性……………………………13
2-5 比表面積與觸媒效率之關係………………………………………13
2-6 助觸媒（co-catalyst）………………………………………………14
2-7 近代製備微粒觸媒之研究…………………………………………15
  2-7-1 固相法……………………………………………………………15
    2-7-2 含浸法……………………………………………………………15
第三章 實驗方法及步驟………………………………………………19
  3-1 實驗用起始原料……………………………………………………19
  3-2 合成粉末之命名……………………………………………………20
  3-3 光觸媒粉末之製……………………………………………………20
    3-3-1 InMO4（M＝Nb, Ta）光觸媒粉末之製備………………………20
    3-3-2 In0.9Ni0.1MO4光觸媒粉末之製備………………………………21
  3-4粉末性質檢測及分析方法…………………………………………22
  3-5 觸媒分解特性的量測………………………………………………25
第四章 結果與討論……………………………………………………34
  4-1 粉末之結晶相分析…………………………………………………34
    4-1-1 InMO4（M = Nb, Ta）相鑑定……………………………………34
    4-1-2 In1-xNixTaO4光觸媒粉末………………………………………34
    4-1-3 結晶粒徑（crystallite size）……………………………………35
    4-1-4 繞射峰繞射角度之變化與晶格常數之改變……………………36
  4-2 粒子型態分析………………………………………………………37
  4-3 比表面積分析………………………………………………………37
  4-4 吸收光譜測試………………………………………………………38
  4-5 氣象層析檢測………………………………………………………38
  4-6 水分解測試…………………………………………………………39
    4-6-1 反應溫度對觸媒效率之影響……………………………………40
    4-6-2 雜Ni的量對觸媒粉末分解效率之影響………………………40
    4-6-3 製備方法對光觸媒粉末分解效率之影響………………………41
第五章 結論……………………………………………………………64
參考文獻………………………………………………………………66
                                    

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校內：2007-07-14公開
校外：2007-07-14公開

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