文献类型：期刊文献

中文题名：负载型催化剂Au(Pd)@UIO-66的制备及其催化性能

英文题名：Preparation and Catalytic Performance of Supported Catalysts Au(Pd)@UIO-66

作者：李岩松[1];罗惜阔[1];许海涛[1];许振良[1]

机构：[1]华东理工大学化工学院化学工程联合国家重点实验室,上海200237

年份：2017

卷号：43

期号：6

起止页码：749

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：国家自然科学基金(21371058)

语种：中文

中文关键词：金属有机骨架;纳米金;纳米钯;催化;对硝基苯酚

外文关键词：metal-organic framework;AuNPs;PdNPs;catalysis;p-nitrophenol

摘要：以多孔金属有机骨架UIO-66为基材,采用浸渍还原法分别合成了Au@UIO-66和Pd@UIO-66两种负载型催化剂,通过透射电镜(TEM)、X射线衍射(XRD)、红外光谱(IR)、N2物理吸脱附对所制备催化剂进行了表征。结果表明:尺寸为13nm的金纳米粒子(AuNPs)均匀分散在载体上,钯纳米(PdNPs)呈现出纳米粒子(粒径5~8nm)和纳米线两种状态,且分散均匀。研究了两种催化剂在不同条件下催化还原对硝基苯酚的性能,结果表明:Au@UIO-66和Pd@UIO-66这两种催化剂都具有较高的催化活性,各使用10mg催化100mL、1.6×10^(-4) mol/L的对硝基苯酚溶液,5min内对硝基苯酚都可达到95%以上的转化率。
Using metal-organic framework(UIO-66)as the support,two supported catalysts Au@UIO-66 and Pd@UIO-66 were prepared by impregnation reduction method and characterized by transmission electron microscope(TEM),X-ray diffraction(XRD),infrared spectroscopy(IR)and N2 adsorptiondesorption.The results showed that gold nanoparticles with size of 13 nm were uniformly dispersed on the carrier and the nano-palladiums also dispersed uniformly on UIO-66 as 5-8 nm nanoparticles and nanowires.The catalytic performance of two catalysts in the catalytic reduction of p-nitrophenol under different conditions was studied.Both catalysts had high catalytic activity.When 10 mg catalyst was used in 100 mL p-nitrophenol aqueous solution(1.6×10^(-4) mol/L),the conversion of p-nitrophenol can reach more than 95% within 5 min.