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Insight of Diversified Reactivity and Theoretical Study of Mixed‐Phase Titanium Dioxide for the Photoactivation of Small Molecules
Author(s) -
Olowoyo Joshua O.,
Hernández Norge Cruz,
Kumar Manoj,
Jain Suman L.,
Babalola Jonathan O.,
Kumar Umesh
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800076
Subject(s) - formic acid , titanium dioxide , photocatalysis , methanol , carbon dioxide , reactivity (psychology) , chemistry , molecule , phase (matter) , hydrothermal circulation , hydrogen , hydrogen production , nuclear chemistry , inorganic chemistry , catalysis , materials science , chemical engineering , organic chemistry , medicine , alternative medicine , pathology , engineering , metallurgy
The mixed‐phase titanium dioxide (TiO 2 ) nanoparticles were prepared by two different methods; sonothermal (S) and sonothermal followed by hydrothermal (SH). The TiO 2 prepared by SH has shown a superior hydrogen (H 2 ) generation via photocatalytic splitting of water (H 2 O) and formic acid (FA) as well as photocatalytic reduction of carbon dioxide (CO 2 ) to methanol (MeOH). The H 2 production rate under UVA from H 2 O and FA was 0.02 and 3.91 mmol g −1 h −1 respectively while MeOH formation rate was 1.97 mmol g −1 h −1 from CO 2 . The DFT calculations of the reactants and products were also investigated.
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