本研究先以懸浮聚合法製備顆粒狀的交聯型聚縮水甘油甲基丙烯酸酯(簡稱 cPGMA)，再以巰基乙酸鈉和cPGMA 進行反應而得到側鏈含巰基乙酸鈉的螯合樹 脂(簡稱PGSA)。透過傅立葉轉換紅外線光譜儀(FT-IR)與能量分散光譜儀(EDS)的 分析，證實巰基乙酸鈉確實和cPGMA 反應而得到PGSA。利用EDS 與紫外光/可 見光光譜儀分析後得知PGSA 吸附金屬離子時同時具備螯合及離子交換的特性。 此外，藉由掃描式電子顯微鏡(SEM)的觀察得知PGSA 的粒徑介於250～350 μm 之 間，其形狀不規則且表面具有孔洞。利用PGSA 吸附單獨的Cu2+、Ag+ 與Cd2+ 時， 大約10 分鐘左右達飽和，最大吸附量為Ag+ [2.41 mmol/(g PGSA)] > Cu2+ [1.52 mmol/(g PGSA)] > Cd2+[1.21 mmol/(g PGSA)]。而PGSA 的吸附量也隨著金屬離子 初濃度的上升而增加，並於某一高濃度以上達最大值，其吸附行為都符合Langmuir 等溫吸附模式。當金屬離子溶液的pH 值由5(或6)降到3 時，吸附量只由最高值些 微下降2～10%；當溶液的pH 值小於3 時，吸附量則大幅下降且在pH 1 時失去對 Cu2+ 與Cd2+ 的吸附力，而對Ag+ 的吸附也只維持在0.63 mmol/(g PGSA)的最低 值。在競爭吸附方面，選擇適當的操作條件，PGSA 可從同濃度的Cu2+/Cd2+ 混合 液中分離出高濃度的Cu2+，而在同濃度的Ag+/Cu2+ 與 Ag+/Cd2+ 中則可分離出純的 Ag+，其選擇性尚佳。以0.5 M 的HNO3 溶液對吸附金屬離子的PGSA 進行5 次的 連續脫附/再吸附實驗後，發現PGSA 對Ag+ 的再吸附量只有初始值的49%，但對 Cu2+ 與Cd2+ 的再吸附量都達到98%，具備極佳的重複使用特性。所以本研究認為 PGSA 是一個成本不高但效能佳的螯合樹脂。

In this study, cross-linked poly(glycidyl methacrylate) (cPGMA) was prepared via a suspension polymerization. Then it reacted with sodium thioglycolate to form a chelate resin (PGSA) containing sodium thioglycolate groups in the side chain. The measurements of Fourier transform infrared spectrometer (FT-IR) and energy dispersive X-ray spectrometer (EDS) proved that PGSA was prepared successfully. Scanning electron microscope (SEM) images displayed that the shape of PGSA was irregular and the diameter of PGSA was 250-350 μm. The adsorptions of single-metal ions tended toward equilibrium at about 10 minutes, and the maximum adsorption capacities were Ag+ [2.41 mmol/(g PGSA)] > Cu2+ [1.52 mmol/(g PGSA)] > Cd2+ [1.21 mmol/(g PGSA)]. The adsorption capacities increased with increasing the initial concentration of metal ions, and reached maximum values at a high concentrations. The adsorption behavior was in accordance with the Langmuir isothermal adsorption mode. When the pH of Ag+, Cu2+ and Cd2+ solutions decreased from 5 (or 6) to 3, the adsorption capacities decreased slightly. When the pH of the solutions were less than 3, the adsorption capacities of metal ions decreased dramatically and approached to zero at pH 1 except Ag+. Controlling the optimum operation conditions, the competitive adsorption tests confirmed that PGSA had good adsorption selectivity for the recovery of Cu2+ from Cu2+/Cd2+ mixture or the recovery of Ag+ from Ag+/Cu2+ and Ag+/Cd2+ mixtures. After 5 cycles of desorption/re-adsorption experiments, the re-adsorption capacities of Ag+, Cu2+ and Cd2+ were 49%, 98% and 98% of initial values, respectively. PGSA was a good adsorbent for adsorbing Ag+, Cu2+ and Cd2+ from aqueous solutions.

摘要.......................................I
Abstract..................................II
誌謝.....................................III
目錄......................................IV
表目錄....................................VI
圖目錄...................................VII
第一章 緒論................................1
1-1 前言...................................1
1-2 處理水中重金屬離子之方法................2
1-3 螯合高分子.............................4
1-3-1 螯合高分子之簡介......................4
1-3-2 螯合高分子之分類......................5
1-3-3 螯合高分子之合成方式..................9
1-3-4 螯合高分子之應用.....................10
1-4 吸附理論...............................13
1-4-1 吸附類型.............................13
1-4-2 影響螯合樹脂吸附金屬離子的因素.........14
1-4-3 吸附模式.............................16
1-4-4 吸附動力學...........................17
1-5 研究動機...............................19
第二章 實驗內容............................21
2-1 實驗藥品...............................21
2-2 儀器設備...............................21
2-3 實驗步驟...............................23
2-3-1 螯合高分子PGSA 的製備................23
2-3-2 PGSA 的鑑定..........................25
2-3-3 PGSA 吸附單一金屬離子之研究...........26
2-3-4 PGSA 重複使用性能之研究..............27
2-3-5 競爭吸附.............................28
第三章 結果與討論..........................29
3-1 螯合樹脂PGSA的製備.....................29
3-2 螯合樹脂PGSA的分析.....................29
3-2-1 傅立葉轉換紅外線光譜儀(FT-IR)之分析...29
3-2-2 掃描式電子顯微鏡(SEM)對PGSA 表面的分析...........31
3-2-3 能量散射光譜儀(EDS)對吸附金屬離子前後的PGSA之分析................32
3-2-4 紫外光/可見光光譜儀對PGSA 吸附Cu2+的分析...........35
3-3 PGSA 吸附單一金屬離子之研究....................37
3-3-1 不同吸附時間對吸附量的影響...................37
3-3-2 不同初濃度的金屬離子對吸附量的影響...........41
3-3-3 不同金屬離子溶液的pH 值對吸附量的影響........44
3-4 PGSA 重複使用性能之研究......................45
3-5 競爭吸附.....................................47
第四章 結論......................................51
參考文獻.........................................52

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