Novel photocatalysts for the decomposition of organic dyes based on metal-organic framework compounds.
Three novel metal-organic frameworks (MOFs) [Co(2)(C(10)H(8)N(2))][C(12)H(8)O(COO)(2)](2), 1, [Ni(2)(C(10)H(8)N(2))(2)][C(12)H(8)O(COO)(2)](2).H(2)O, 2, and [Zn(2)(C(10)H(8)N(2))][C(12)H(8)O(COO)(2)](2), 3, with three-dimensional structures have been synthesized and characterized. The structures of the three compounds appear somewhat related, formed by the connectivity involving the metal polyhedra (Co(4)N trigonal bipyramids in 1, NiO(4)N(2) octahedra in 2, and ZnO(4) tetrahedra and ZnO(3)N(2) trigonal bipyramids in 3), 4,4'-oxybis(benzoate), and 4,4'-bipyridine. The photocatalytic studies on 1-3 indicate that they are active catalysts for the degradation of orange G, rhodamine B, Remazol Brilliant Blue R and methylene blue. The compounds have also been characterized by powder X-ray diffraction, IR, thermogravitmetric analysis, UV-vis, photoluminescence, and magnetic studies.
Mahata
Partha
P
Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India.
Madras
Giridhar
G
Natarajan
Srinivasan
S
D002384:Catalysis; D003035:Cobalt / Q000737:chemistry / Q000528:radiation effects; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry* / Q000528:radiation effects; D007700:Kinetics; D009532:Nickel / Q000737:chemistry / Q000528:radiation effects; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry* / Q000528:radiation effects; D010777:Photochemistry; D013696:Temperature; D013997:Time Factors; D014466:Ultraviolet Rays; D015032:Zinc / Q000737:chemistry / Q000528:radiation effects
D005456:Fluorescent Dyes; D009942:Organometallic Compounds; D003035:Cobalt; D009532:Nickel; D015032:Zinc