以Ag和Cu金屬附載於碳化ZIF-8對環境汙染物的還原降解及二維和三維有序中孔洞碳材對亞甲藍之吸附實驗

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/83251

Title:	以Ag和Cu金屬附載於碳化ZIF-8對環境汙染物的還原降解及二維和三維有序中孔洞碳材對亞甲藍之吸附實驗
Authors:	鄭尊豪;Cheng, Tsun-Hao
Contributors:	化學學系
Keywords:	硝基苯酚;羅丹明B;甲基橙;亞甲基藍;碳化類沸石咪唑骨架-8;有序中孔洞碳材料;吸附;降解;Nitrophenol;Rhodamine B;Methyl Orange;Methylene blue;Carbonization of ZIF-8;Ordered Mesoporous Carbons;Adsorption;Degradation
Date:	2020-07-30
Issue Date:	2020-09-02 15:14:40 (UTC+8)
Publisher:	國立中央大學
Abstract:	此論文分為兩個部分，第一部分針對環境汙染物4-Nitrophenol (4-NP)、2-Nitrophenol (2-NP)、Rhodamine B (RhB)、Methyl Orange (MO) 設計一系列催化劑來進行還原降解實驗。將廉價金屬銅輔以貴金屬銀做為反應活性中心，並以化學雙還原的方式將銀銅金屬附載於類沸石咪唑骨架衍生碳材料-8 (Carbonization of ZIF-8) 簡稱CZ-8。藉由調控不同金屬比例來達到最佳催化效果，其中Ag6Cu4對於硝基苯酚的還原速率最快，4-NP的還原速率可達96396.6 s-1gmetal-1；Ag2Cu8對於染料RhB的降解速率更達到151093.3 s-1gmetal-1。而以化學雙還原的方式還原金屬離子，其奈米尺寸大小5.59 - 11.03 nm之間。第二部分中利用KIT-6及SBA-15做為硬模板合成了碳材CMK-5、CMK-8、CMK-9，在無修飾官能基的情況下對陽離子染料Methylene Blue (MB) 探討其吸附行為，並比較了第一部分的碳氮底材CZ-8。結果顯示擁有2382.4 m2/g高比表面積的CMK-9擁有此一系列中最大吸附量977 mg/g，並依Langmuir等溫吸附得知此一系列對於亞甲基藍 (Methylene blue, MB) 的吸附行為皆傾向於單層吸附。 ;There are two parts in my study. In the first part, environmental pollutions such like nitroaromatic compounds and dyes endangers the mother earth. This study chooses 4-nitrophenol and its structural isomer, 2-nitrophenol to represent nitro compound. There is a great deal of different metal nanoparticle, silver, nickel, etc., were used in reduction process. Combining a low-cost metal with noble metal is economical. Especially copper nanoparticle is an outstanding catalysis for nitro compound reduction. Silver/copper alloy nanoparticles are synthesized by using chemical reduction with aqueous solution of NaBH4 and NH3BH3 on carbonization of zeolitic imidazolate framework (CZ-8). The bimetal particle size on the CZ-8 are approximately between 5.59 and 11.03 nm. The catalysis activities of the AgxCuy@CZ-8 materials not only in the nitrophenol reduction but also in dye degradation such as rhodamine b (RhB), methyl orange (MO). And the results show that the most fastest sample to the nitrophenol reduction process and dye degradation process is Ag6Cu4, Ag8Cu2, respectively. They exhibits a high catalytic activity with the activity parameter of 96396.6 s-1gmetal-1 for 4-NP and 151093.3 s-1gmetal-1 for RhB. The second part, we use mesoporous silica material, KIT-6 and SBA-15 as hard template to synthesize CMK-5, CMK-8 and CMK-9 and no functional group at CMK series. The experiment about methylene blue adsorption with mesoporous carbon material. In the results, there is the highest surface area, 2382.4 m2/g in characteristic of CMK-9. It showed an excellent adsorption capacity for 977 mg MB per gram adsorbent. The adsorption behavior of MB tend to single layer adsorption by Langmuir adsorption isotherm theory.
Appears in Collections:	[Graduate Institute of Chemistry] Electronic Thesis & Dissertation

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