Journal
CATALYSIS TODAY
Volume 360, Issue -, Pages 185-193Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2019.06.044
Keywords
Self-assembly; Platinum; Nanoparticles; Catalytic reduction; 4-Nitrophenol; Methylene blue
Funding
- CONACyT [INFR-2014-01226291]
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The study presents a green synthesis method using Coffea Arabica seed extract to create Pt nanoparticles, which form efficient reusable 2D superstructures for catalytic reduction of industrial pollutants in water. The results suggest that the green synthesis process could be extended to fabricate other metallic superstructures for efficient catalytic reduction of organic contaminants.
We report a simple eco-friendly green synthesis of self-assembled (SA) Pt nanoparticles, forming 2D sub-micrometric structures, from Coffea Arabica seed (CAS) extract. Small (2 nm) spherical Pt nanoparticles organized in the form of square/rectangular shaped 2D superstructures, have been utilized as efficient reusable catalysts for the reduction of industrial pollutants such as 4-nitrophenol (4-NP), methylene blue (MB) and their mixtures in aqueous medium (as well as in adsorbed state), with the activity parameters 0.75, 0.68 and 0.94 s(-1) mg(-1), respectively. The green process utilized for the fabrication of platinum superstructures in the present work could be extended for the fabrication of other metallic superstructures for efficient reusable catalytic reduction of organic contaminants.
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