后修饰法提高MOFs光催化性能
首发时间:2016-04-27
摘要:发展了两种提高MOFs光催化性能的方法。(1) 通过对NH2-Uio-66(Zr)进行配体氨基功能化增加MOFs中的氨基位点,可以提高其光吸收性质和CO2吸附能力,有效的促进光催化CO2还原。(2) 通过后修饰配体交换的方法用Ti取代NH2-Uio-66(Zr)中的Zr得到具有双金属的NH2-Uio-66(Zr/Ti)。与纯的NH2-Uio-66(Zr)相比,NH2-Uio-66(Zr/Ti)表现出更高的光催化CO2还原性能。
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Post-Synthetic Modification of MOFs for Ehanced Photocatalytic Performance
Abstract:Two strategies for enhanced photocatalytic performance over MOFs were developed. (a) Amine-functionalization on the ligand of NH2-Uio-66(Zr) can improve its light absorption property and adsorption capacity towards CO2, facilitating the photocatalytic CO2 reduction. (b) Ti substituted NH2-Uio-66(Zr) (NH2-Uio-66(Zr/Ti)) was achieved via a post-synthetic metal exchange strategy. The as-formed NH2-Uio-66(Zr/Ti) showed higher performance for the photocatalytic CO2 reduction as compared with the pure NH2-Uio-66(Zr) under otherwise similar condition.
Keywords: metal-organic frameworks photocatalysis post-synthetic modification CO2 reduction
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No.4684952289766146****
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