Silica gel-supported porphyrinatoantimony(V) complex acting as visible-light driven photocatalyst for dechlorination of chlorophenols in aqueous solution

摘要

In order to develop the photocatalyst operating under visible-hight irradiation,silica gel-supported dihydroxo(tetraphenylporphyrinato)-antimony(V)cmplex,[SbTPP(OH)_2]~+/SiO_2,was prepared.The irradiated [SbTPP(OH)_2]~+/SiO_2 particles by fluorescent light induced the dechlorination of chlorophenols in aqueous solution containing Fe9NO_3)_3 to give Cl ion,1,4-benzoquinone (BQ),and Fe~2+.The [SbTPP9OH)_2]~+ catalyst supported by Fe~3+-impregnated SiO_2[SbTPP(OH)_2]~+/SiO_2-Fe~3+,was prepared in order to perform the photo-chemical dechlorination without the Fe(No_3)_3.