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Degradation, mineralization of bromoxynil pesticide by heterogeneous photocatalytic ozonation
Suresh Maddila,Palakondu Lavanya,Sreekanth B. Jonnalagadda 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.24 No.-
The photocatalysts of Cs doped bare TiO2, 0.50 and 1.0 wt% were prepared by wet-impregnation method and characterized by XRD, SEM-EDX, TEM, BET, ICP, FTIR, and UV-DRS analyses. The degradation of bromoxynil was investigated under visible irradiation with ozone to compare the efficiency of these photoinduced advanced oxidation techniques. Photocatalysis with 1% Cs/TiO2 was yielded 100% degradation and mineralization of bromoxynil in 2 h at basic pH. The extent of degradation was confirmed by GC–MS. The oxidation products were identified by 1H NMR and GC–MS spectral analyses. The catalyst is fully recoverable and reusable multiple times with no loss of activity.
Kotaiah, Y.,Krishna, N. Hari,Raju, K. Naga,Rao, C.V.,Jonnalagadda, S.B.,Maddila, Suresh Korean Chemical Society 2012 대한화학회지 Vol.56 No.1
In the present study, we have synthesized novel Isopropyl 2-(4-substitutedbenzylidene)-5-methyl-3-oxo-7-phenyl-3,7-dihydro-2H-thiazolo[3,2-a]-pyrimidine-6-carboxylate derivatives (6a-j). Elemental analysis, IR, $^1H$ NMR and mass spectral data elucidated structure of newly synthesized compounds. The newly synthesized compounds were screened for antiinflammatory and anti microbial studies. Their biological activity data of the 10 compounds indicates that two compounds posses potent anti-inflammatory and five have antimicrobial activities.