Atmospherical oxidative coupling of amines by UiO-66-NH2 photocatalysis under milder reaction conditions

被引：42

作者：

Liu, Ruxue ^{[1
]}

Meng, Shuangyan ^{[1
]}

Ma, Yali ^{[1
]}

Niu, Litong ^{[1
]}

He, Shuanghong ^{[1
]}

Xu, Xueqing ^{[2
]}

Su, Bitao ^{[1
]}

Lu, Dedai ^{[1
]}

Yang, Zhiwang ^{[1
]}

Lei, Ziqiang ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Ecoenvironm Related Polymer Mat, Key Lab Polymer Mat Gansu Prov,Minist Educ, Lanzhou 730070, Peoples R China

[2] Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2019年 / 124卷

关键词：

UiO-66-NH2; Heterogeneous photocatalysis; Amines coupling reaction; Free radicals; METAL-ORGANIC FRAMEWORK; LIGHT-DRIVEN PHOTOCATALYST; AEROBIC OXIDATION; SELECTIVE OXIDATION; CO2; REDUCTION; EFFICIENT; IMINES; NANOCOMPOSITES; NANOPARTICLES; SEPARATION;

D O I：

10.1016/j.catcom.2019.03.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To assess the mechanism and milder conditions for amines to imines, UiO-66-NH2 was chosen as an efficient photocatalyst for the transformation under light irradiation. A series of experiments for the catching of the active species were performed, and it was proved that holes (h(+)) and superoxide radicals (center dot O-2(-)) were involved when the reaction was performed under air. The reaction also occurred because of the presence of nitrogen-centered radical cations and carbon-centered radicals, which were induced by photogenerated hole (h(+)) with considerable conversion and selectivity under anaerobic conditions. Our experiments revealed that the catalyst can be recycled for four times.

引用

页码：108 / 112

页数：5

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