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

被引：0

作者：

Zong Mengya ^{[1
]}

Zhao Yutong ^{[2
]}

Fan Cunzheng ^{[1
]}

Wang Danhong ^{[1
,3
]}

机构：

[1] Nankai Univ, Natl Inst Adv Mat, Sch Mat Sci & Engn, TKL Met & Mol Based Mat Chem, Tianjin 300350, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

[3] Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China

来源：

CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY | 2020年 / 22卷 / 04期

关键词：

phosphotungstic acid; Zr-MOF; oxidative desulfurization; synergistic effect; oxygen vacancy; METAL-ORGANIC FRAMEWORKS; ADSORPTIVE DESULFURIZATION; OXIDE;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

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 W-0 as revealed by the XPS analysis.

引用

页码：56 / 62

页数：7

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