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Yao Q, Pan X, Si X, Wang X, Zhang X, Hou J, Su J, Qiu Y, Li J. A porous and photoactive Ti-MOF based on a novel tetranuclear [Ti 2Tb 2] cluster. Chem Commun (Camb) 2024; 60:2188-2191. [PMID: 38295378 DOI: 10.1039/d3cc06114k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
A robust and porous titanium metal-organic framework (Ti-MOF; LCU-505) has been solvothermally synthesized based on an unprecedented tetranuclear Ti2(μ3-O)2Tb2(μ2-CH3COO)2(H2O)4(OOC-)8 cluster (abbreviated as [Ti2Tb2]) and tritopic 4,4',4''-s-triazine-2,4,6-triyl-tribenzoic acid ligand (H3TATB). LCU-505 shows remarkable water stability and permanent porosity for N2 and CO2 gas adsorption. Moreover, LCU-505 demonstrates n-type semiconductor behavior and good photocatalytic activity in the degradation of organic dyes.
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Affiliation(s)
- Qingxia Yao
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Xuze Pan
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Xuezhen Si
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Xin Wang
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Xiaoying Zhang
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Jinle Hou
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Jie Su
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China.
| | - Yi Qiu
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China.
| | - Jun Li
- School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
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Men F, Hu T, Jiang Z, Yang H, Gao Y, Zeng Q. The Creation of Multimode Luminescent Phosphor through an Oxygen Vacancy Center for High-Level Anticounterfeiting. Inorg Chem 2024; 63:668-676. [PMID: 38113464 DOI: 10.1021/acs.inorgchem.3c03561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Integrating multimode optical properties into a single material simultaneously is promising for improving the security level of fluorescent anticounterfeiting. However, there has been a lack of affirmative principles and unambiguous mechanisms that guide the design of such material. Herein, we achieve color-tunable photoluminescence, long-lived persistent emission, thermally stimulated luminescence, and reversible photochromism in a Tb3+-activated Mg4Ga8Ge2O20 phosphor by employing the F-like color center as an energy reservoir. It is experimentally revealed that the role of oxygen vacancies in the lattice of Mg4Ga8Ge2O20 is assumed as the main trap for the photogenerated electronic carriers, which is the origin of metastable F-like color centers. The formed color centers with the estimated depths of 0.48-0.95 eV could suppress the recombination of electron-hole pairs, thus giving rise to good photochromism and persistent emission properties, while under various modes of stimulation such as thermal attack or photo radiation, a quick recombination of electron holes happens, accounting for the bright thermally stimulated luminescence and the accompanied color bleaching. Finally, we fabricate a flexible phosphor/polymer composite by encapsulating the developed phosphor into a polydimethylsiloxane matrix, and conceptual demonstration of the composite for the high-security fluorescent anticounterfeiting technology, by virtue of multimode optical phenomena as authentication signals.
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Affiliation(s)
- Fanchao Men
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province , P. R. China
| | - Tao Hu
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province , P. R. China
- Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, Guangdong Province, P. R. China
| | - Zelong Jiang
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province , P. R. China
| | - Hong Yang
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province , P. R. China
| | - Yan Gao
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province , P. R. China
| | - Qingguang Zeng
- School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province , P. R. China
- Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, Guangdong Province, P. R. China
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Shi H, Feng D, Li H, Yu D, Chen X. Hydrophilic hydrogen-bonded organic frameworks/g-C3N4 all-organic Z-scheme heterojunction for efficient visible-light photocatalytic hydrogen production and dye degradation. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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