Synergistic Excited State Involved Catalytic Reduction of (NH3-trz)[Fe(dipic)2] Complex by SnO2/TiO2Nanocomposite

• Published in: Journal of inorganic and organometallic polymers and materials Vol. 32; no. 7; pp. 2712 - 2728
• Main Authors: Venkatesh, D., Pavalamalar, S., Silambarasan, R., Anbalagan, K.
• Format: Journal Article
• Language: English
• Published: New York Springer US 2022; Springer Nature B.V
• Subjects: Ammonia; Catalytic activity; Chemical reduction; Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Iron; Nanocomposites; Organic Chemistry; Photocatalysis; Polymer Sciences; Solvents; Tin dioxide; Titanium dioxide; trz)[Fe(dipic; composites; Adsorption; SnO; Photoreduction; NH; TiO; ]; Hydroxyl radical
• ISSN: 1574-1443; 1574-1451
• DOI: 10.1007/s10904-022-02304-1

In this study, cost-effective, environmentally friendly well-fabricated SnO 2 /TiO 2 nanocomposite synthesized via hydrothermal route and the photocatalytic activity was validated using the (NH 3 -trz)[Fe(dipic) 2 ] complex under ultra-violet illumination. The structural features of (NH 3 -trz)[Fe(dipic) 2 ] complex and catalysts were systematically examined by various characteristics. The photoreactivity of the model compound (NH 3 -trz)[Fe(dipic) 2 ] in water/binary solvent systems was investigated. The rate of photoreaction ( k ) of nanocomposite (0.1432 s −1 ) is higher than the SnO 2 (0.0373 s −1 ) and TiO 2 (0.1422 s −1 ) in H 2 O:Pr i OH (70:30%) than the rest of the solvents system. The pathways, mechanistic feature of accumulated reactive species on nanocomposite to induce adherent [Fe(dipic) 2 ] − anion and photo-reductive products were studied. Graphical Abstract