Photocatalytic demethylation of 2,4,6-trinitrotoluene (TNT) by porphyrins.
Illumination of tetraphenyl porphyrin sulfonate (TPPS), CuTPPs and FeTTPPS in solution with trinitrotoluene (TNT) at pH7 at room temperature using tungsten lamp illumination results in the degradation of TNT to yield trinitrobenzoic acid and trinitrobenzene. No other degradation products are observed. The rate of TNT degradation follows the series TPPS > FeTPPS > CuTPPS.
Harmon
H James
HJ
Department of Physics, Oklahoma State University, Stillwater, OK 74078, United States. james.harmon@okstate.edu
D002384:Catalysis; D008665:Metalloporphyrins / Q000737:chemistry; D010777:Photochemistry; D011166:Porphyrins / Q000737:chemistry*; D013997:Time Factors; D014303:Trinitrotoluene / Q000032:analysis* / Q000528:radiation effects; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000528:radiation effects
C466420:5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrinato iron(III) chloride; D008665:Metalloporphyrins; D011166:Porphyrins; D014874:Water Pollutants, Chemical; C441604:meso-tetra(4-sulphonatophenyl)porphyrinato copper(II); D014303:Trinitrotoluene; C016136:tetraphenylporphine sulfonate