本研究以快速析出製程出二氧化鈦奈米球狀粉體，並對其衍生光觸媒進行光催化產氫的研究與探討。實驗中，將透過不同比例的Cu元素摻雜合成出Cu-TiO2-n光觸媒，可得具有最佳產氫率的Cu-TiO2-6光觸媒。之後在此光觸媒為基底再分別複合四種不同類型之材料(BiOBr、rGO、Ag、Pt)合成出複合光觸媒，並分別探討其複合光催化劑對於光催化產氫效率之影響。為了解本實驗之光觸媒之物理與化學現象，將利用XRD、SEM、EDS、XPS、TEM進行分析，光學與其他特性也將利用DRS、PL、Raman、EPR、EIS、MS、CV分析其結果，而光催化產氫量則使用GC儀器進行量測。
實驗第一部分是以不同比例之銅元素摻雜於二氧化鈦中。製備方式係快速析出法，將氯化銅前驅物直接加入於二氧化鈦前驅物四正丁醇钛的異丙醇溶液中均勻的攪拌，然後加入大量的水並持續攪拌4小時，之後使用酒精清洗並乾燥後，將其材料進行450度2小時的退火後而製備完成。第二部分是以最佳產氫量之Cu-TiO2-6光催化劑為主體，分別複合四種材料後進行光催化產氫量之比較與分析。
從研究中可以發現銅的摻雜雖然大大的提升光催化產氫效率，但要再製備出複合材料進行修飾與增進其光催化活性的效果都並不佳，添加從文獻中參考之材料，對此光催化劑都沒有能提升其光催化產氫效果，只有在使用Pt光催化助劑，才有明顯提升與幫助。
本實驗之複合光催化劑最佳效果之條件係添加2% Pt於Cu-TiO2-6光催化劑上合成出2% Pt/Cu-TiO2-6，其光催化產氫率最高達4934 μmol/h·g。

This research prepared titanium dioxide nano-spherical powder by a new process method for investigating its derived photocatalysts for hydrogen evolution. Cu-TiO2-n photocatalyst was synthesized by adding different proportions of Cu elements, and the best hydrogen production rate was Cu-TiO2-6 photocatalyst. Afterward, four different types of materials (BiOBr, rGO, Ag, Pt) were added to the Cu-TiO2-6 photocatalyst as the substrate to synthesize a composite photocatalyst, and the effects of the composite photocatalyst on the photocatalytic efficiency were discussed respectively. To understand the physical and chemical phenomena of the photocatalyst in this experiment, XRD, SEM, EDS, XPS, and TEM will be used; optical and other characteristics will be analyzed by DRS, PL, Raman, EPR, EIS, MS, CV; and the amount of hydrogen produced by photocatalytic was measured using a GC instrument.
The first stage of the experiment was prepared by the rapid precipitation method, which involved adding different proportions of the Copper element to titanium dioxide. The Copper precursor of Copper chloride was directly added into the titanium precursor of titanium n-butoxide in an isopropanol solution and stirred evenly, then added a large amount of water and kept stirring for 4 hours, and finally washed and dried with alcohol. The photocatalyst was then annealed at 450°C for 2 hours. The second stage compares and analyzes the photocatalytic hydrogen production after adding four kinds of materials to the Cu-TiO2-6 photocatalyst with the best hydrogen production.
The research results show that although adding Copper significantly improves the photocatalytic hydrogen production efficiency, modifying the prepared composite material to enhance its photocatalytic activity is not good. Adding the materials referenced in the literature cannot improve this photocatalyst's photocatalytic hydrogen production effect, and only using a Pt photocatalytic accelerator can significantly enhance and help.
The best effect condition of the composite photocatalyst in this experiment is to add 2% Pt to the Cu-TiO2-6 photocatalyst to synthesize 2% Pt/Cu-TiO2-6, and the photocatalytic hydrogen production rate is as high as 4934 μmol/h·g.

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