A superhydrophobic MOF facilitating efficient solvent-free catalytic chemical fixation of CO2 and oxidation of hydrocarbons and MOF@cotton@starch composite-based selective sensing of a herbicide

Modern-day environmental pollution does not end with only air pollution by harmful gases. Issues also arise due to dust particles released by industry and motor vehicles. Regular use of herbicides, fungicides, and pesticides to increase the production of foodstuffs in agricultural fields also enhanc...

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Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2024-03, Vol.12 (12), p.4460-4472
Main Authors: Ghosh, Subhrajyoti, Mukherjee, Srijan, Veerappan Karthik, Bera, Priti, Dhakshinamoorthy, Amarajothi, Biswas, Shyam
Format: Article
Language:English
Subjects:
Alcohols
Carbon dioxide
Catalytic converters
Cotton
Fluorine
Fungicides
Herbicides
Hydrocarbons
Hydrophobicity
Ketones
Metal-organic frameworks
Motor vehicles
Multifunctional materials
Outdoor air quality
Oxidation
Recyclability
Soil pollution
Solvents
Ultraviolet radiation
Water sampling
Zirconium
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Summary:Modern-day environmental pollution does not end with only air pollution by harmful gases. Issues also arise due to dust particles released by industry and motor vehicles. Regular use of herbicides, fungicides, and pesticides to increase the production of foodstuffs in agricultural fields also enhances the risk of soil and aquatic environmental pollution. Therefore, the systematic development of multi-functional materials for the catalytic conversion of toxic gases and hydrocarbons into value-added products under mild conditions, selective detection, and quantification of toxic organic pollutants in environmental water bodies are crucial to maintaining a sustainable environment. Herein, we have strategically engineered a highly robust, fluorine-rich, Zr(iv)–organic framework (1) and, desolvated (1′) to address three emerging environmental issues. This is the first recyclable metal–organic framework (MOF) catalyst (1′) where the Lewis basic nature of fluorine atoms and the Lewis acidic nature of the Zr(iv) sites are utilized for the mild pressure, solvent-free entrapping of CO2 to epoxides with various kinetic dimensions in high yields. The hydrophobic cavity of 1′ also facilitated better conversions of hydrocarbons into their respective alcohols/ketones compared to non-hydrophobic MOF under aerobic oxidation conditions with recyclability. Notably, for the first time, selective, rapid (response time
ISSN:2050-7526
2050-7534
DOI:10.1039/d3tc04140a