【正文】 TB34 1008034216 AgAgCl quaternized chitosan /OREC/TiO2Study on posite membrane photocatalytic degradation of anic pollutants 分類號 學號 密級 10722 公開 AgAgCl季銨化殼聚糖 /OREC/TiO2 復合膜光催化降解有機污染物的研究 作 者 姓 名 指 導 教 師 學 科 門 類 提交論文日期 專 業(yè) 名 稱 學校代碼 成 績 評 定 賈 洲 平 材料 化學 楊連利 20xx 年 6 月 理 學 摘要 I 摘 要 本實驗通過研究 AgAgCl季銨化殼聚糖 /OREC/TiO2 復合膜光催化 對有機物的降解，光催化 具有分解水制氫和光降解有機污染物等作用，在解決能源問題、溫室效應和環(huán)境問題方面有重要的應用前景 ， 貴金屬一半導體光催化劑結(jié)合了貴金屬的表面等離子體共振效應和半導體光催化活性的優(yōu)點，能 夠提高對可見光的利用率和光催化活性 ，實驗以殼聚糖、二氧化鈦累托石為原料 先將殼聚糖進行季銨化處理，將 TiO2 及 AgAgCl 等離子體通過沉積 沉淀法和光化學反應加入有機累托石中，并采用 N， N亞甲基雙丙烯酰胺 (NMBA)做交聯(lián)劑進行交聯(lián)反應，制得了 AgAgCl季銨化殼聚糖 /OREC/TiO2 復合膜；利用 X 射線衍射(XRD)、透射電子顯微鏡 (TEM),掃描電子顯微鏡 ((SEM),X 射線光電子能譜分析 (XPS)、激光拉曼光譜 (Raman),紫外可見漫反射光譜 (UVvis DRS)等測試手段對所制備的催化劑進 行了表征。分別以 甲基橙 和 4 一硝基苯酚為目標降解物，研究了光催化劑在可見光下對有 機污染物的光催化降解性能，探討了復合光催化材料的結(jié)構(gòu)與光催化性能之間的關(guān)系。通過紫外一可見光光譜分析和活性自由基的分析，探討了制備的光催化劑對有機污染物的降解機理。 關(guān)鍵詞 ：累托石；；季銨化殼聚糖； 光催化；氯化銀；等離子體 目錄 II Abstract This experiment by studying the Ag AgCl quaternary ammonium chitosan/when/TiO2 posite film photocatalytic degradation of anic matter, photocatalysis has deposition hydrogen and light degradation of anic pollutants in water, and so on, to deal with the problem of energy, the greenhouse effect and environmental issues have important application prospect, precious metals a semiconductor photocatalyst bines the precious metal surface plasmon resonance effect and the advantages of semiconductor photocatalytic activity, can improve the utilization ratio of visible light and light catalytic activity, the experiment with chitosan, titanium dioxide rectorite as raw material to chitosan quaternary ammonium, TiO2 and Ag AgCl plasma by sedimentary precipitation and light chemical reactions in anic pareto stone, using N, N methylene double acrylamide (NMBA) as crosslinking agent of crosslinking reaction, with Ag AgCl quaternary ammonium chitosan/when/TiO2 posite film。 Using Xray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), Xray photoelectron spectroscopy (XPS) analysis, laser Raman spectroscopy (Raman), uvvis diffuse reflection spectroscopy (UV vis DRS) of the test methods such as the preparation of catalysts have been characterized. Respectively with methyl orange and 4 a nitro phenol degradation as the goal, research of photocatalyst in the visible light Machine photocatalytic degradation performance of pollutants, probes into the structure of the posite photocatalytic materials and the relationship between the photocatalytic performance. By ultraviolet visible light spectrum analysis and the analysis of the active free radicals, discusses the preparation of photocatalyst for the degradation of anic pollutants (pops) mechanism. Keywords: rectorite。 Quaternary ammonium chitosan。 Photocatalytic。 Silver chloride。 plasma 摘要 III 目 錄 摘 要 ................................................................................................................................................ I 前 言 ............................................................................................................................................... 4 1 文獻綜述 ........................................................................................................................................ 3 殼聚糖 的結(jié)構(gòu)及作用機理 ............................................................................................ 4 殼聚糖 的化學性質(zhì) ...................................................................................................... 5 殼聚糖 的制備 ............................................................................................................. 5 殼聚糖 的季銨化改性 ................................................................................................... 6 殼聚糖的研究現(xiàn)狀及應用 ............................................................................................ 7 新型敷料的研究現(xiàn)狀及應用 .................................................................................................. 7 累托石概述 .......................................................................................................................... 8 累托石的結(jié)構(gòu) ............................................................................................................. 8 累托石的物化性能 ...................................................................................................... 8 累托石的應用 ............................................................................................................. 9 二氧化鈦概述 ....................................................................................................................... 9 二氧化鈦 的作用 ........................................................................................................ 10 海藻酸鈉的理化性能 ................................................................................................. 10 二氧化鈦 的應用 .........................................................................................................11 衣康酸的結(jié)構(gòu)與性能 ................................................................................................. 13 衣康酸的發(fā)展及應用 ................................................................................................. 13 插層法概述 ........................................................................................................................ 14 本課題研究內(nèi)容、可行性分析及創(chuàng)新點 ...........................................................