Amarajothi Dhakshinamoorthy | Generation of Fuels by Metal-Organic Framework-Based Photocatalysts

Amarajothi Dhakshinamoorthy, Madurai Kamaraj University,India Title: Generation of Fuels by Metal-Organic Framework-Based Photocatalysts Abstract: In respect to conventional inorganic semiconductors, metal−organic frameworks (MOFs) have emerged as efficient photocatalysts due to their fascinating physical and chemical properties. MOFs are a class of crystalline porous materials whose crystal lattice is composed of strong coordination bonds between the multitopic organic ligands and metal ions/metal oxo-clusters/metal-oxo chains. Interestingly, MOFs have been reported as one of the suitable (photo)catalysts due to their tunability in the physico-chemical and optoelectronic properties. Thus, the possibility of employing MOFs as photocatalysts has significantly accelerated in the hydrogen evolution reaction using triethanolamine or methanol as sacrificial electron donors. In addition, MOFs have also been reported as photocatalysts for the sustainable conversion of H2O into H2 and O2 assisted by sunlight is increasing considerable interest. Further, CO2 recycling into fuels is considered as one of the promising approaches to develop a circular carbon economy to achieve carbon neutrality. In this context, CO2 hydrogenation involving Solar irradiation is appealing technologies for this target. In the present invited lecture, MOF-on-MOF composites possessing UiO-66 topologies, namely UiO-66(Ce), UiO-66(Zr)-NH2, UiO-66(Zr)-NH2@UiO-66(Ce) and UiO-66(Ce)@UiO-66(Zr)-NH2 are prepared, and their photocatalytic activity is tested in the overall water splitting under simulated sunlight irradiation without any sacrificial agents.1 Among these photocatalysts, the promising activity is observed with UiO-66(Zr)-NH2@UiO-66(Ce) photocatalyst exhibiting 708 and 320 µmol g-1 after 22 h for H2 and O2, respectively, with 5 mg of solid. Furthermore, it will also be demonstrated that the photocatalytic CO2 hydrogenation using RuOx supported MIL-125(Ti)-NH2 allows to operate even under continuous flow operation ( 50 h) and visible light irradiation.2 Amarajothi Dhakshinamoorthy received his Ph.D., degree in 2009 from Madurai Kamaraj University, Madurai-21, India. Later, he worked as a postdoctoral researcher and a distinguished researcher with Prof. Hermenegildo Garcia at the Technical University of Valencia for four years. He is working as a Assistant Professor at School of Chemistry, Madurai Kamaraj University, Madurai, Tamil Nadu, India since 2013. His research interests include (photo)catalytic applications of metal-organic frameworks and graphene-related materials. He has co-authored over 225 publications, six book chapters and one patent. He is also serving as an Early Carrier Advisory Board member in Molecular Catalysis, Elsevier. #WCCE2026 #chemistry #chemistryconferences #catalysis #analyticalchemistry #organicchemistry #greenchemistry #nanotechnology #environmentalchemistry #inorganicchemistry #organometallics #materialscience #syntheticchemistry #biochemistry #greenchemistry #medicinalchemistry #chemicalresearch #chemicalengineering