Azole Functionalized Polyoxo-Titanium Clusters with Sunlight-Driven Dye Degradation Applications: Synthesis, Structure, and Photocatalytic Studies
datasetposted on 06.10.2016, 15:29 by Nagaraju Narayanam, Kalpana Chintakrinda, Wei-Hui Fang, Yao Kang, Lei Zhang, Jian Zhang
Six polyoxo-titanium clusters (PTCs) with varying nuclearities containing Ti–N bonds and heteronuclearity, namely, [Ti6(μ3-O)2(μ2-O)2(O3P-Phen)2(OiPr)10(1-hbta)2] (PTC-37), Ti8(μ3-O)2(μ2-O)2(O3P-Phen)2(OiPr)16(adn)2(NO3)2] (PTC-38), [Ti4(μ3-O)(μ2-O)(μ2-OiPr)2(OiPr)4(O3P-Phen)3(1,10-phn)](HOiPr) (PTC-39), [Ti4(μ3-O)(μ2-OiPr)3(OiPr)5(O3P-Phen)3(Im)] (PTC-40), [Ti4(μ3-O)(μ2-OiPr)3(OiPr)5(O3P-Phen)3(Im)][Ti3M(μ3-O)(μ2-OiPr)3(OiPr)3(O3P-Phen)3(Im)] (M = Co for PTC-41 and M = Zn for PTC-42; O3P-Phen = phenyl phosphonate, 1-hbta = 1-hydroxy benzotriazolate, adn = adenine, 1,10-phn = 1,10-phenanthroline, Im = imidazolate, and OiPr = isopropoxide) were prepared as crystalline samples and structurally characterized. Simultaneous doping of nitrogen and transition metal heteroatoms into the Ti–O clusters created complex chemical environments in the resulting hybrid materials. Thus, photocatalytic methylene blue degradation studies were performed to understand structure–property relationships in these Ti cluster-based materials. The complex chemical environment created in these novel molecular clusters had proved to exhibit ligand-dependent photocatalytic activities under normal sunlight. Adenine-functionalized PTC-38 presented moderate activities, while other PTCs all show rapid dye degradation.
Read the peer-reviewed publication
Ti cluster-based materialspolyoxo-titanium clustersdye degradationdegradation studiesO 3 P-PhenSunlight-Driven Dye Degradation ApplicationsO i Prexhibit ligand-dependent photocatalytic activitiesphotocatalytic methylenechemical environments1- hydroxy benzotriazolateSimultaneous dopingchemical environmentAdenine-functionalized PTC -381- hbtatransition metal heteroatomsphenyl phosphonatePhotocatalytic StudiesPTC -41PTC -42Azole Functionalized Polyoxo-Titanium Clusters