@article {48320,
	title = {Photoinduced CO2 and N2 reductions on plasmonically enabled gallium oxide},
	journal = {Journal of Colloid and Interface Science},
	volume = {629},
	year = {2023},
	month = {JAN},
	pages = {654-666},
	type = {Article},
	abstract = {<p>
	Ag-containing ZnO/ b-Ga2O3 semiconductor, which exhibit reduced bandgap, increased light absorption, and hydrophilicity, have been found to be useful for photocatalytic CO2 reduction and N2 fixation by water. The charge-separation is facilitated by the new interfaces and inherent vacancies. The Ag@GaZn demonstrated the highest photocurrent response, about 20-and 2.27-folds that of the Ga and GaZn sam-ples, respectively. CO, CH4, and H2 formed as products for photo-reduction of CO2. Ag@GaZn catalyst exhibited the highest AQY of 0.121 \% at 400 nm (31.2 W/m2). Also, Ag@GaZn generated 740 lmolg-1 of NH4+ ions, which was about 18-folds higher than Ga sample. In situ DRIFTS for isotopic-labelled 13CO2 and 15N2 reaffirmed the photo-activity of as-synthesized catalysts. Density functional theory pro-vided insight into the relative affinity of different planes of heterostructures towards H2O, CO2 and N2 molecules. The structure-photoactivity rationale behind the intriguing Ag@GaZn sample offers a funda-mental insight into the role of plasmonic Ag and design principle of heterostructure with improved pho-toactivity and stability.(c) 2022 Elsevier Inc. All rights reserved.</p>
},
	keywords = {CO2 reduction, DRIFTS density functional theory, hydrophilicity, Photocurrent response},
	issn = {0021-9797},
	doi = {10.1016/j.jcis.2022.09.097},
	author = {Ojha, Niwesh and Thakkar, Kavita and Bajpai, Abhinav and Joshi, Kavita and Kumar, Sushant}
}
