@article {48225,
	title = {Enhanced hydrogen fuel production using synergistic combination of solar radiation and TiO2 photocatalyst coupled with Burkholderia cepacia lipase},
	journal = {International Journal of Hydrogen Energy},
	volume = {47},
	year = {2022},
	month = {APR },
	pages = {14483-14492},
	type = {Article},
	abstract = {<p>
	Promising and sustainable alternatives for hydrogen production have been investigated. Among these, the use of enzymes may represent an efficient alternative. In this work, an increase in hydrogen production under simulated sunlight by combining TiO2 and TiO2/MgCl2 with Burkholderia cepacia lipase (BCL) was reported. The samples (TiO2, TiO2/MgCl2, and TiO2 /MgCl2/BCL) were characterized by X-ray diffraction (XRD), thermo-gravimetric (TGA), N-2 adsorption-desorption isotherms (BET), scanning electron microscopy (SEM), and UV-Visible absorption spectra. Hydrogen production tests were performed in aqueous methanol solutions under simulated sunlight. The results demonstrated that 130-times greater increase in hydrogen production rate was observed by the addition of BCL than individual TiO2. This better hydrogen production rate can be attributed to the increase in the amount of reduction equivalent of the system due to the oxidation of protein peptides caused by TiO2. In conclusion, the results indicate that hydrogen production efficiency can be significantly improved when integrating TiO2/MgCl2 with BCL. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.</p>
},
	keywords = {hydrogen production, Lipase, Nano-conjugated enzymes, Photocatalyst, Solar radiation, Titanium dioxide},
	issn = {0360-3199},
	doi = {10.1016/j.ijhydene.2022.02.220},
	author = {de Souza Brandao, Luma Mirely and Barbosa, Milson dos Santos and de Jesus, Roberta Anjos and Bharad, Pradnya Arunrao and Lima, Alvaro Silva and Faria Soares, Cleide Mara and Navarro Yerga, Rufino Manuel and Bilal, Muhammad and Romanholo Ferreira, Luiz Fernando and Iqbal, Hafiz M. N. and Gopinath, Chinnakonda S. and Figueiredo, Renan Tavares}
}
@article {49773,
	title = {Synthesis of Pd-integrated carbon Dot@TiO2 thin film for photocatalytic glycerol reforming reaction for producing hydrogen},
	journal = {Chemistry-an Asian Journal},
	volume = {20},
	year = {2025},
	month = {NOV},
	type = {Article},
	abstract = {<p>
	A series of thin-film photocatalysts comprising TiO2 modified with carbon dots (CDs) dispersed either with palladium (Pd-CD/TiO2) or nickel (Ni-CD/TiO2) were synthesized via solid-state and wet-impregnation methods. Morphological characterization (HR-TEM, SEM-EDS) confirmed the anatase phase of TiO2 and the atomic dispersion of metal-integrated CDs on its surface. UV-vis DRS and XPS analyses revealed a marginal red shift in band-gap and the presence of sp2-hybridized graphitic carbon, and metal-carbon interactions, indicating enhanced light absorption and charge separation through Schottky junctions. Under direct sunlight illumination, Pd-CD/TiO2 thin film exhibited superior hydrogen yield (1167 mu mol g-1 h-1) and maintained stability over 25 h, outperforming Ni-CD/TiO2 (494 mu mol g-1 h-1) and bare TiO2 (166 mu mol g-1 h-1) photocatalyst thin films. Concurrent glycerol oxidation at neutral pH (pH similar to 7) yields glycolaldehyde (41\% selectivity), formic acid, and dihydroxyacetone as value-added products. Enhanced photocurrent density and lower impedance of Pd-CD/TiO2 corroborate improved charge carrier separation and dynamics. The results demonstrate that Pd-CD synergistically improves the photocatalytic performance of the Pd-CD/TiO2 for sustainable hydrogen generation and selective biomass valorization.</p>
},
	keywords = {Glycerol oxidation, Graphitic carbon dots, hydrogen production, Photocatalysis, titania},
	issn = {1861-4728},
	doi = {10.1002/asia.202500757},
	author = {Abraham, Athira and Salgaonkar, Kranti N. and Nivedhitha, Thazhath R. and Ekal, Vishal Ashok and Kondhekar, Deepali and Chakraborty, Shubhankar and Gopinath, Chinnakonda S. and Saha, Avishek}
}
