Guest modulating the photoactivity of a titanium-oxide cage

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

doi:10.1039/d4sc04983g

Guest modulating the photoactivity of a titanium-oxide cage

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

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

Abstract

Two host-guest Ti-oxide clusters, Ti₁₄(NH₄)₂ and Ti₁₄Cs₂, were synthesized and thoroughly characterized. They possess a rarely seen biloculate structure that encapsulates two NH₄⁺ and Cs⁺ guests, respectively. Interestingly, alkali metal cations can exchange places with NH₄⁺. The ability of the host to capture the guest cations follows the order Cs⁺ > NH₄⁺ > Rb⁺ > K⁺. The guests heavily influence the physiochemical properties and photocatalytic activities of the complexes. Ti₁₄Cs₂ exhibits a redshifted visible-light absorption edge, increased charge-separation properties, and enhanced interfacial charge-transfer ability compared to Ti₁₄(NH₄)₂. It also demonstrates excellent performance in photocatalytic CO₂/epoxide cycloaddition reactions regarding the reaction rate, scalability, sunlight usage, catalyst recyclability, and stability. This study presents a novel Ti-oxide-based cage cluster with exchangeable guests and provides insights for enhancing the solar harvesting applications of Ti-oxide cages.

Original language	English
Pages (from-to)	19952-19961
Number of pages	10
Journal	Chemical Science
Volume	15
Issue number	47
DOIs	https://doi.org/10.1039/d4sc04983g
State	Published - 13 Nov 2024
Externally published	Yes

ASJC Scopus subject areas

General Chemistry

Access to Document

10.1039/d4sc04983g

Cite this

@article{f7c59bd1187f46dc85e164b19ea2fcc9,

title = "Guest modulating the photoactivity of a titanium-oxide cage",

abstract = "Two host-guest Ti-oxide clusters, Ti14(NH4)2 and Ti14Cs2, were synthesized and thoroughly characterized. They possess a rarely seen biloculate structure that encapsulates two NH4+ and Cs+ guests, respectively. Interestingly, alkali metal cations can exchange places with NH4+. The ability of the host to capture the guest cations follows the order Cs+ > NH4+ > Rb+ > K+. The guests heavily influence the physiochemical properties and photocatalytic activities of the complexes. Ti14Cs2 exhibits a redshifted visible-light absorption edge, increased charge-separation properties, and enhanced interfacial charge-transfer ability compared to Ti14(NH4)2. It also demonstrates excellent performance in photocatalytic CO2/epoxide cycloaddition reactions regarding the reaction rate, scalability, sunlight usage, catalyst recyclability, and stability. This study presents a novel Ti-oxide-based cage cluster with exchangeable guests and provides insights for enhancing the solar harvesting applications of Ti-oxide cages.",

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

note = "Publisher Copyright: {\textcopyright} 2024 The Royal Society of Chemistry.",

year = "2024",

month = nov,

day = "13",

doi = "10.1039/d4sc04983g",

language = "English",

volume = "15",

pages = "19952--19961",

journal = "Chemical Science",

issn = "2041-6520",

publisher = "Royal Society of Chemistry",

number = "47",

}

TY - JOUR

T1 - Guest modulating the photoactivity of a titanium-oxide cage

AU - Wang, Dexin

AU - Liu, Yanshu

AU - Zhang, Guanyun

AU - Chu, Menghui

AU - Gao, Fangfang

AU - Chen, Guanjie

AU - Wang, Guo

AU - Tung, Chen Ho

AU - Wang, Yifeng

PY - 2024/11/13

Y1 - 2024/11/13

N2 - Two host-guest Ti-oxide clusters, Ti14(NH4)2 and Ti14Cs2, were synthesized and thoroughly characterized. They possess a rarely seen biloculate structure that encapsulates two NH4+ and Cs+ guests, respectively. Interestingly, alkali metal cations can exchange places with NH4+. The ability of the host to capture the guest cations follows the order Cs+ > NH4+ > Rb+ > K+. The guests heavily influence the physiochemical properties and photocatalytic activities of the complexes. Ti14Cs2 exhibits a redshifted visible-light absorption edge, increased charge-separation properties, and enhanced interfacial charge-transfer ability compared to Ti14(NH4)2. It also demonstrates excellent performance in photocatalytic CO2/epoxide cycloaddition reactions regarding the reaction rate, scalability, sunlight usage, catalyst recyclability, and stability. This study presents a novel Ti-oxide-based cage cluster with exchangeable guests and provides insights for enhancing the solar harvesting applications of Ti-oxide cages.

AB - Two host-guest Ti-oxide clusters, Ti14(NH4)2 and Ti14Cs2, were synthesized and thoroughly characterized. They possess a rarely seen biloculate structure that encapsulates two NH4+ and Cs+ guests, respectively. Interestingly, alkali metal cations can exchange places with NH4+. The ability of the host to capture the guest cations follows the order Cs+ > NH4+ > Rb+ > K+. The guests heavily influence the physiochemical properties and photocatalytic activities of the complexes. Ti14Cs2 exhibits a redshifted visible-light absorption edge, increased charge-separation properties, and enhanced interfacial charge-transfer ability compared to Ti14(NH4)2. It also demonstrates excellent performance in photocatalytic CO2/epoxide cycloaddition reactions regarding the reaction rate, scalability, sunlight usage, catalyst recyclability, and stability. This study presents a novel Ti-oxide-based cage cluster with exchangeable guests and provides insights for enhancing the solar harvesting applications of Ti-oxide cages.

UR - http://www.scopus.com/inward/record.url?scp=85209684485&partnerID=8YFLogxK

U2 - 10.1039/d4sc04983g

DO - 10.1039/d4sc04983g

M3 - Article

C2 - 39568895

AN - SCOPUS:85209684485

SN - 2041-6520

VL - 15

SP - 19952

EP - 19961

JO - Chemical Science

JF - Chemical Science

IS - 47

ER -

Guest modulating the photoactivity of a titanium-oxide cage

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this