Antimony porphyrin complexes as visible-light driven photocatalyst

Potential applications of porphyrins in photodynamic inactivation beyond the medical scope

“…The bactericidal effect of silica gel-supported antimony porphyrin complex SbTPP/SiO 2 , under visible-light irradiation over Legionella pneumophila has been reported by the group of Yasuda et al [97,98]. Laboratory and environmental field experiments in a cooling tower of 800 L capacity were carried out using fluorescent lamps as light source, and also in a public fountain filled with 13 m 3 of water and sunlight irradiation.…”

“…No [47] No [50,52,69] On filter paper [82] On cotton fabric [86,108] On polysilsesquioxane plastic films [61] On cotton fabric [87] On azide-modified cellulose nanocrystals [43,75] On chloroacetyl cellulose ester chlorides [78] On cellulose laurate esters plastic films [79] No [71] No [93] No [49,71,93,110] and Tri-Py + -Me-PF on silica coated Fe3O4 nanoparticles [70] and also on CoFe2O4 nanoparticles [111] No [81] No [105] No [36,37,71,74,81,105]; Tetra-Py + -Me was entrapped into microporous silica gels [88] and into three alkylene-bridged polysilsesquioxanes [89] On optically transparent indium tin oxide electrodes [63] On chitosan membranes [72] Pd(II) TetraTPPCO2H On a polyurethane matrix [83] No [105] In hydrophilic polycaprolactone and polyurethane (TecophilicH) nanofibers [60]; on electrospun polymeric nanofiber materials polyurethane Larithane TM , polystyrene, polycaprolactone, and polyamide 6 [76]; into three alkylene-bridged polysilsesquioxanes [89]; and in a silica-gel supported antimony porphyrin complex SbTPP [97,98] No [44,…”

“…In the public fountain, the bacterial concentrations were reduced to the detection limit 12 days after the SbTPP/SiO 2 catalyst had been installed in the fountain. The bacterial concentrations were kept at <30 CFU 100 mL −1 for 3 months until the removal of the catalyst from the fountain [97,98].…”

Photochemical Transformations Involving Porphyrins and Phthalocyanines

“…Some selected examples for the use of zinc(II) tetrapyrroles as photosensitizers are the oxidation of isopropyl alcohol (Uchida et al 1977) or water (Gerasimov et al 1991), the photochemical dediazoniation of arene diazonium salts with a zinc(II) phthalocyanine derivative (Becker et al 1986), the photocatalytic decomposition of CCl 4 (Khairutdinov et al 1982), trichlorophenol (Kasuga et al 2000), amino acids (Spikes et al 1995, Zhang andXu 1994) and of atrazine (Héquet , et al 2000). Likewise reactions with hydroquinone (Fan and Bard 1979), cellulose (Thomas and Allen 2002) and the photocatalytic destruction of organic matter in effluents from paper industry (Machado et al 2003) were studied and a variety of antimony porphyrin based photocatalysts were prepared and analyzed (Shiragami et al 2005). Phenol photooxidation can also be performed by an iron porphyrin in the presence of oxygen.…”

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

“…Porphyrins and their metallic derivatives have been widely studied and have been proved as very promising photosensitizers for photocatalytic hydrogen production [24][25][26][27] owing to their large extinction coefficients in the visible-light region, prospective photochemical electron-transfer ability, excellent chemical and thermal stability and low cost [28,29]. In addition, the central metal of the metalloporphyrins can result in stronger and broader photoresponse in the visible region [30,31]. Among various metalloporphyrins, manganese porphyrin possesses strong absorption in the visible region and specific electron-transfer kinetics distinguished it from other metalloporphyrins [32].…”