本論文主旨在於，利用簡單且快速的方式合成出具高比表面積及高金屬分散性的孔洞材料，並尋找出其應用性。研究中發現此類型的材料，依照金屬氧化物的組成不同，可分別應用於催化觸媒、吸附劑以及螢光材料。
藉由Pauling所提出「具有不同結晶尺寸的層狀物，在彼此互相結合下會自發性的捲曲」，因此使用不同的載體單載金屬氧化物，在水熱重組作用後會形成各種特殊結構的孔洞材料 。合成Cu/Fe-silicate孔洞材料，利用矽酸鹽和金屬離子互相螯合的概念，使金屬離子能夠均勻分散在整個架構中，形成amorphous結構的金屬矽酸鹽，藉由水熱提供能量使材料進行重組，得到結構更穩定的類管狀Cu/Fe-silicate。至於合成Cu/Fe-aluminate孔洞材料，則是將金屬氫氧化物沉澱於活性氧化鋁的孔洞中，水熱過程gibbsite的晶格結構逐漸消失轉變成絲綢片狀的結構。
藉由反應參數的變動如:反應環境pH值、金屬離子/載體比例、水熱時間等，可達到操控表面積及孔洞結構，另外，以硫酸銅廢液作為銅離子前驅物進行相同步驟合成，一樣能合成出具高比表面積Cu/Fe-silicate及Cu/Fe-aluminate孔洞材料，對於成本考量及綠色化學上有一定的優勢。將這類孔洞材料進行煅燒後，在結構中形成高分散度的金屬氧化物活性中心，可用來作為催化觸媒材料。
引入共沉澱的概念，進行nickel-silicate的合成，在反應過程中將鎳離子廢液和矽酸鹽互相螯合，形成amorphous的沉澱物，使濾液中鎳離子濃度能符合放流水排放標準，不但能夠降低實驗成本，且製程對環境是友善的。以此手法合成的產物，具有高比表面積，可應用於廢水處理以及工業上廢氣的吸附上。目前與台塑公司合作處理水中氨氮離子的移除，也具有良好的效果。
Zn-silicate和Y-silicate皆具有很高的能階空隙，因此可透過摻雜不同離子，得到不同發光波段的螢光粉。針對溶膠凝膠法做研究，以溫和的反應條件、減短製程時間的一鍋法合成出發光效率佳的無機螢光材料。
Zn2SiO4:Mn2+，前驅物Mn/Zn-silicate在水熱過程中會進行拆解重組，形成主結構為捲曲片狀的Zn-stevensite，經過900oC煅燒後，主體結構轉相形成α-Zn2SiO4，活化劑在此結構中能有較佳的螢光強度。反應過程中Mn2+會取代晶格內的Zn2+，成為螢光材料中的發光中心，於300 nm紫外光照射下可發出綠色螢光；Zn2SiO4: Eu3+，在未煅燒的情況下，屬於amorphous的Eu/Zn-silicate結構，煅燒900oC後轉相形成α-Zn2SiO4，於240 nm紫外光照射下可發出紅色螢光。Zn2SiO4: Eu3+在500oC煅燒下就能夠形成高螢光強度的產物，且具有高比表面積，吸附水中硫化物後會使螢光強度下降，因此可應用於快速檢測硫化物上。Y2SiO5: Ce3+，藍色螢光會以yttrium-silicate為主體結構，水熱後形成amorphous的結構，與Ce3+螯合後，Ce3+會取代Y3+的位置，藉由900oC煅燒使產物轉相為Y2SiO5，於340 nm的紫外光激發下可發出藍色螢光。

To mimic the formation of the clay minerals in nature, we provided a facile and simple method to prepare metal-silicate material. To prepare the porous metal-silicate, the amorphous metal-silicate was prepared by simultaneously adding NaOH(aq) and metal-ion solution to sodium silicate solution. Then the resulted amorphous metal-silicate is hydrothermally treated under alkaline condition for reconstruction of the metal-silicate composites. The effect of pH value, the metal to silica ratio, hydrothermal time, metal-ion sources, and other experimental parameters were discussed in detail. We also used active alumina as supporter to prepare metal-aluminate. The resulted materials including Cu/Fe-silicate, Cu/Fe-aluminate, nickel-silicate, Mn/Zn-silicate, Eu/Zn-silicate, and Ce/Y-silicate. In practice, these porous metal-silicate and aluminate materials demonstrate high performances to be used as catalysts、adsorbents and phosphors.

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