A cryptand-like Ti-coordination compound with visible-light photocatalytic activity in CO2 storage

被引：1

作者：

Liu, Yanshu ^{[1
]}

Zhang, Guanyun ^{[1
]}

Wang, Dexin ^{[1
]}

Chen, Guanjie ^{[1
]}

Gao, Fangfang ^{[1
]}

Tung, Chen-Ho ^{[1
]}

Wang, Yifeng ^{[1
,2
]}

机构：

[1] Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Sci, Minist Educ, Jinan 250100, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

DALTON TRANSACTIONS | 2024年 / 53卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CYCLIC CARBONATES; CHARGE-TRANSFER; CYCLOADDITION; EPOXIDES; CLUSTERS; ACID;

D O I：

10.1039/d3dt04051h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A cryptand-like Ti-coordination compound, namely Ti12Cs, comprising two Ti-6-salicylate cages and hosting two Cs+ ions, was synthesized by the solvothermal method. It exhibits strong visible-light absorption with an absorption band edge of 652 nm, attributed to the electron transition from salicylate ligands to Ti ions. Electrochemical impedance, visible-light transient photocurrent response, and photoluminescence spectra confirm that Ti12Cs has excellent visible-light response and charge-separation properties. Ti12Cs can be used as a heterogeneous and recyclable photocatalyst for CO2/epoxide cycloaddition, with high utilization efficiency of visible-light under mild conditions. The mechanism investigation points to a synergistic effect of photocatalysis and Lewis acid catalysis.

引用

页码：1989 / 1998

页数：10

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