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  • 學位論文

製備摻氮氧化鋅/聚苯胺進行染料降解之研究

Application of nitrogen-doped zinc oxide/polyaniline composite for dyes degradation

指導教授 : 王雅玢
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摘要


有機染料主要用於紡織及食品加工中,目前染料的種類已超過了十萬種,由於其非生物降解性、對水生生物高毒性及對人體的致癌性,再加上,染料廢水具有色澤深且酸鹼性強等特點,因此一直是廢水處理中的難題。 本研究使用熱液法 (solvothermal method)將氧化鋅進行摻雜,使氧化鋅能隙縮小,進而可利用可見光進行光催化反應,接著再以原位聚合法 (in-situ polymerization)與聚苯胺做結合形成有機/無機複合物,使其同時具有氧化鋅的特性與聚苯胺的優勢,進而讓材料之應用範圍更加廣泛。另外,以此材料進行染料的去除研究,欲去除之染料為酸性與鹼性染料,前者選用活性黑KN-B (reactive black 5,RB5),後者則以亞甲基綠氯化鋅複合鹽 (methylene green zinc chloride double salt,MG)做代表,進行吸附及可見光光催化之研究。 結果顯示,摻氮氧化鋅/聚苯胺複合物是由摻氮氧化鋅表面包覆一層聚苯胺而形成的。在去除RB5染料的實驗中,ZnO-N/PANI(1:1)擁有最好的總去除率(60.5%),24小時的吸附去除率為44.4%,而6小時的光催化降解率為16.1%,其最大吸附量是221 mg/g,且整個過程中並無副產物產生。在去除MG染料的實驗中,ZnO-N/PANI(1:1)具有最好的總去除率 (71.8%),24小時的吸附去除率為17.4% (非最佳,最佳的為PANI,其吸附去除率為36.0%),而6小時的光催化降解率為54.4%,其最大吸附量是9.80 mg/g,且整個過程中並無副產物產生,摻氮氧化鋅/聚苯胺複合物在可見光下可加速RB5和MG染料的分解。

關鍵字

摻氮氧化鋅 聚苯胺 光催化 吸附 染料

並列摘要


More than one hundred thousand kind of organic dyes are used in textile and food industries. In wastewater treatment, organic dyes are big problems due to their non-biodegradability and high toxicity to aquatic creatures and carcinogenic effects on humans, as well as the dark color and extreme pH. In this study, nitrogen-doped zinc oxide (ZnO-N) were fabricated by solvothermal method. The photocatalyst ZnO-N could process chemical reaction under visible light. Further, ZnO-N was combined with polyaniline (PANI) by in-situ polymerization to form inorganic-organic material─nitrogen-doped zinc oxide with polyaniline (ZnO-N/PANI) composite. The composite had advantage of PANI and ZnO-N so it can be widely used. In addition, reactive black 5 (RB5) and methylene green zinc chloride double salt (MG) dyes were tested by ZnO-N/PANI under visible light to evaluate its effect. The results showed PANI and ZnO-N had formed a composite in which the ZnO-N was embedded within the polymer matrix. For RB5 dye removal experiment, 60.5% of total removal efficiency was the highest for ZnO-N/PANI(1:1). The adsorption efficiency is 44.4% for 24 hours and its photo-degradation efficiency is 16.1% for 6 hours. The maximum adsorption capacity is 221 mg/g. For MG dye removal experiment, 71.8% of total removal efficiency was the highest for ZnO-N/PANI(1:1). The adsorption efficiency is 17.4% for 24 hours and its photo-degradation efficiency is 54.4% for 6 hours. The maximum adsorption capacity is 9.80 mg/g. The ZnO-Z/PANI composite will accelerate the degradation of RB5 and MG under visible light.

參考文獻


王國至. (2014). 應用二氧化鈦/聚苯胺複合物去除甲醛之研究. 中原大學生物環境工程學系,碩士論文.
朱秉駿. (2015). 製備摻氮氧化鋅聚偏氟乙烯薄膜進行可見光催化之研究. 中原大學生物環境工程學系,碩士論文.
楊誌欽, 陳., 林宗義, 吳秉宸. (2010). 應用氧化鋅鈀材成長氮摻雜感測材料之研製. 國立高雄海洋科技大學學報, 24, 105-113.
陳智永. (2009). 添加氧化鋅對聚苯胺電性之影響. 大同大學材料工程研究所,碩士論文.
江庭妍. (2012). 以表面改質天然多醣體合成氧化鋅之研究. 國立中央大學環境工程研究所,碩士論文.

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