期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 10, 期 6, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.108848
关键词
Metal -organic framework; Hydrogen generation; ZIF-67; Catalysis; Dye degradation
资金
- Science, Technology & Innovation Funding Authority (STIFA) [45020, 35969]
This study reported a method of encapsulating thiourea and D-Glucose-6 -phosphate disodium salt dihydrate into zeolitic imidazolate frameworks, and tested their potential applications as catalysts in hydrogen generation and degradation of organic dyes.
Metal-organic frameworks (MOFs) are promising catalysts for producing clean energy and environmental-based applications. This paper reported one-pot encapsulation of guest molecules, e.g., thiourea (TU) and D-Glucose-6 -phosphate disodium salt dihydrate (G6P-Na2), into zeolitic imidazolate frameworks (ZIF-67), denoted as S@ZIF-67 and P@ZIF-67, respectively. The organic guest molecules offered the synthesis of cobalt-based materials (e.g., Co3O4, CoP, and CoS), embedded heteroatoms (P, N, and S) via carbonization. The materials were tested for hydrogen generation via sodium borohydride (NaBH4) hydrolysis. ZIF-67, S@ZIF-67, and P@ZIF-67 displayed maximum hydrogen generation rates (HGRmax) of 27,273, 24,000, and 60,000 mLH2 gcat -1 min-1, respectively, using 20 mg of the catalyst and 0.2 wt.% of NaBH4 at 60 degrees C. The materials were also investigated as potential catalysts for the adsorption and catalytic degradation of water pollutants such as organic dyes, e.g., methyl orange (MO) and Congo red (CR), with degradation efficiency of 100% and 99% in a short time (30-60 min).
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