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Visual identification of 1O2-induced crystal structure transformation of single Zr-MOF by dark-field microscopy.
Xu, Yue; Li, Qian; He, Wei; Yang, Chang Ping; Gao, Peng Fei; Li, Yuan Fang; Huang, Cheng Zhi.
Afiliación
  • Xu Y; Chongqing Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University), Chongqing Science and Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing 400715, China. liyf@swu.edu.cn.
  • Li Q; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China. chengzhi@swu.edu.cn.
  • He W; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China. chengzhi@swu.edu.cn.
  • Yang CP; Chongqing Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University), Chongqing Science and Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing 400715, China. liyf@swu.edu.cn.
  • Gao PF; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China. chengzhi@swu.edu.cn.
  • Li YF; Chongqing Key Laboratory of Luminescent and Real-Time Analysis System (Southwest University), Chongqing Science and Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing 400715, China. liyf@swu.edu.cn.
  • Huang CZ; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China. chengzhi@swu.edu.cn.
Chem Commun (Camb) ; 59(38): 5729-5732, 2023 May 09.
Article en En | MEDLINE | ID: mdl-37092322
Understanding the structural transformation of photocatalysts under illumination provides detailed insights to solve the poisoning of photocatalysts. In this study, the 1O2-induced transformation of crystalline structure in nanosized Zr-porphyrin metal organic frames (ZrTCPP MOFs) is confirmed by a dark-field microscopy (DFM) system. Under continuous illumination, the energy of excited ZrTCPP transfers to oxygen in the surroundings and generates 1O2, which causes the nanosized crystal ZrTCPP to change into the amorphous state The crystalline structure of ZrTCPP corresponds to the multiple resonance peaks of the scattering spectra, and the amorphous structure corresponds to the single scattering peak. Therefore, the crystalline change is characterized by characteristic peaks changes in the scattering spectra under DFM, showing that a real-time and in situ DFM imaging method is a good platform for monitoring the crystal structure transformation at the single particle level.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Chem Commun (Camb) Asunto de la revista: QUIMICA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Chem Commun (Camb) Asunto de la revista: QUIMICA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido