Synergistic Effect between Zr-MOF and Phosphotungstic Acid for Oxidative Desulfurization

作者：Zong Mengya,Zhao Yutong,Fan Cunzheng,Wang Danhong

摘要：PTA/UiO-66 composites were successfully synthesized by the hydrothermal method.The results showed that the synergistic effect between phosphotungstic acid(PTA)and UiO-66 could enhance the oxidative desulfurization(ODS)activity.The XRD results proved that UiO-66 retained its structure in the PTA/UiO-66 composites.The SEM results showed that the PTA/UiO-66 catalysts exhibited regular octahedral shape.The Raman spectra revealed that PTA in the composites retained the Keggin structure.The XPS results showed that the electron transfer occurred from Zr-MOF to PTA.The ODS reaction mechanism was discussed.Electrons transfer from Zr-MOF to PTA can promote the generation of active species(·OH)and thus enhance the ODS activity.This explanation can be confirmed by the formation of oxygen vacancy and W0 as revealed by the XPS analysis.

发文机构：TKL of Metal and Molecule Based Material Chemistry Dalian Institute of Chemical Physics Key Laboratory of Advanced Energy Materials Chemistry（Ministry of Education）

关键词：phosphotungsticacidZr-MOFoxidativedesulfurizationsynergisticeffectoxygenvacancy

分类号： TB3[一般工业技术—材料科学与工程]