Preparation, characterization, and photocatalytic performance of zeolitic-imidazolate-framework-67 for the degradation of four types of dyes

The typical porous material zeolitic-imidazolate-framework-67 (ZIF-67) in which Co+2 ions strongly connect with the imidazole ligand. ZIF-67 can expose a large surface area, pore volume, and well stability. In this work, ZIF-67 was well prepared by a co-precipitation approach. The prepared ZIF-67 wa...

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Bibliographic Details
Main Authors: Jabbar, L. R., Al-Farraji, A.
Format: Conference Proceeding
Language:English
Subjects:
Dyes
Imidazole
Indigo
Optical properties
Photodegradation
Porous materials
Surface area
Surface stability
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Summary:The typical porous material zeolitic-imidazolate-framework-67 (ZIF-67) in which Co+2 ions strongly connect with the imidazole ligand. ZIF-67 can expose a large surface area, pore volume, and well stability. In this work, ZIF-67 was well prepared by a co-precipitation approach. The prepared ZIF-67 was characterized by DRS, FESEM, N2-sorption, EDS and XRD analyses. The results demonstrate that the ZIF-67 has a huge surface area of about 2413.5 m2/g, also ZIF-67 has good optical properties which have bandgap energy (3.3 eV). The photocatalytic efficiency of ZIF-67 under visible light was examined for degradation of four types of dyes MB, MO, Rh.B, and indigo carmine. The result shows that the degradation rates were 100% within 80 min for MB, 100% within 200 min for MO, 87.26% within 240 min for Rh-B, and 91.3% within 240 min for indigo carmine. These results proved that ZIF-67 has a satisfactory photocatalytic performance.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0163866