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Photochemical Enhancement in Catalytic Activity of Nickel Nanoparticles for Hydration of CO 2
Author(s) -
Bhaduri Gaurav A.,
Muzaffar Bilal,
Alamiry Mohammed A. H.,
Yuan Jian,
Shangguan Wenfeng,
Šiller Lidija
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201600317
Subject(s) - mineralization (soil science) , catalysis , chemistry , aqueous solution , irradiation , photochemistry , nickel , nanoparticle , surface plasmon resonance , infrared , absorption (acoustics) , materials science , nanotechnology , optics , organic chemistry , physics , nuclear physics , nitrogen , composite material
The aqueous route for mineralization of CO 2 is considered one of the least energy consuming processes for carbon capture and storage. Reversible hydration of CO 2 is one of the slowest steps in the mineralization process, however, it can be enhanced using nickel nanoparticles (NiNPs). In this study we evaluate the influence of photochemical effects on the catalytic activity of NiNPs for hydration of CO 2 by comparing pH change profiles of catalysed and uncatalysed reactions under different solar irradiation conditions. The activity of NiNPs for CO 2 hydration is observed under artificial solar radiation, with and without an infrared (IR) filter and in dark conditions. It is found that the rate of CO 2 hydration is enhanced by ∼16 % in the presence of IR‐filtered solar radiation and by ∼24 % with the presence of IR radiation. The enhancement of activity is attributed to absorption associated with the NiNP surface plasmon resonance at 400 nm.