HKUST-1固载1-丁基-3-甲基咪唑氯盐及其光催化性能研究

Photocatalytic Performance over 1-Butyl-3-Methylimidazolium Chloride Supported on HKUST-1

摘要: 本文通过溶剂热法合成了HKUST-1，并以此为基底，固载制备不同比例1-丁基-3-甲基咪唑氯盐([BMIM]Cl)，合成HKUST-1:[BMIM]Cl复合材料。通过SEM、XRD、FT-IR、XPS、PL等表征手段分析复合材料的形貌、结构及光物理性能。探究其可见光下模拟燃油(100 μg/g吡啶/正辛烷)脱氮和染料(20 mg/L亚甲基蓝、罗丹明B)催化降解性能。实验结果表明：可见光照射4 h，1:2HKUST-1:[BMIM]Cl复合材料兼具优良的光催化燃油脱氮及染料降解活性，燃油脱氮率可达80.2%，亚甲基蓝、罗丹明B光降解率分别达到45.1%和47.1%。

Abstract: In this study, HKUST-1 was synthesized via solvothermal method. Using HKUST-1 as the substrate, 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) composites with different mass ratios were prepared by immobilization, resulting in the successful synthesis of HKUST-1:[BMIM]Cl composites. The morphology, structure and photophysical properties of the HKUST-1:[BMIM]Cl composites were systematically analyzed over SEM, XRD, FT-IR, XPS and PL spectroscopy. The denitrification performance of simulated fuel oil (100 μg/g pyridine/n-octane) and the photocatalytic degradation activity for dyes (20 mg/L methylene blue and 20 mg/L rhodamine B) under visible light irradiation were investigated. The experimental results showed that under 4 hours of visible light irradiation, the HKUST-1:[BMIM]Cl composite with a mass ratio of 1:2 exhibited the optimal comprehensive photocatalytic performance, possessing both excellent fuel denitrification effect and good dye degradation activity. Its fuel denitrification rate could reach 80.2%, and the photodegradation rates for methylene blue and rhodamine B were 45.1% and 47.1%, respectively.