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

Yanshu Liu; Guanyun Zhang; Dexin Wang; Guanjie Chen; Fangfang Gao; Chen Ho Tung; Yifeng Wang

doi:10.1039/d3dt04051h

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

Yanshu Liu, Guanyun Zhang, Dexin Wang, Guanjie Chen, Fangfang Gao, Chen Ho Tung, Yifeng Wang

Research output: Contribution to journal › Article › peer-review

Abstract

A cryptand-like Ti-coordination compound, namely Ti12Cs, comprising two Ti₆-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.

Original language	English
Pages (from-to)	1989-1998
Number of pages	10
Journal	Dalton Transactions
Volume	53
Issue number	5
DOIs	https://doi.org/10.1039/d3dt04051h
State	Published - 3 Jan 2024
Externally published	Yes

ASJC Scopus subject areas

Inorganic Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/d3dt04051h

Cite this

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title = "A cryptand-like Ti-coordination compound with visible-light photocatalytic activity in CO2 storage",

abstract = "A cryptand-like Ti-coordination compound, namely Ti12Cs, comprising two Ti6-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.",

author = "Yanshu Liu and Guanyun Zhang and Dexin Wang and Guanjie Chen and Fangfang Gao and Tung, {Chen Ho} and Yifeng Wang",

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T1 - A cryptand-like Ti-coordination compound with visible-light photocatalytic activity in CO2 storage

AU - Liu, Yanshu

AU - Zhang, Guanyun

AU - Wang, Dexin

AU - Chen, Guanjie

AU - Gao, Fangfang

AU - Tung, Chen Ho

AU - Wang, Yifeng

PY - 2024/1/3

Y1 - 2024/1/3

N2 - A cryptand-like Ti-coordination compound, namely Ti12Cs, comprising two Ti6-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.

AB - A cryptand-like Ti-coordination compound, namely Ti12Cs, comprising two Ti6-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.

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