Photocatalytic Degradation of Pesticides in Natural Water: Effect of Hydrogen Peroxide

Table 7

% Removal of pesticides by photocatalytic treatments.

Group	Pesticide	Removal after TiO2/radiation (%)	Removal after TiO2/H2O2/radiation (%)
Triazines	Simazine	45	50
	Atrazine	35	40
	Propazine	35	40
	Terbuthylazine	50	50
	Prometon	45	45
	Ametryn	55	55
	Prometryn	55	55
	Terbutryn	55	60
	Desethylatrazine	35	40
Organic phosphorated	Parathion methyl	90	90
	Parathion ethyl	55	55
	Chlorpyrifos	80	80
	Chlorfenvinfos	40	55
	Dimethoate	55	60
HCHs	α-HCH	20	20
	β-HCH	15	15
	χ-HCH	15	20
	δ-HCH	15	15
HCB	Hexachlorobenzene	35	35
Heptachlors	Heptachlor	50	50
	Heptachlor epoxide A	30	30
	Heptachlor epoxide B	30	30
Endosulphans	α-Endosulphan	90	100
	Endosulphan-sulphate	5	10
Drins	Endrin	50	50
	Dieldrin	30	30
	Isodrin	60	100
	Aldrin	55	95
DDTs	pp′-DDE	40	70
	pp′-DDD + op′-DDT	35	80
	pp′-DDT	20	70
Anilines	3,4-Dichloroaniline	100	100
	4-Isopropylaniline	100	100
Ureas	Isoproturon	85	85
	Diuron	75	75
Carbamate	Molinate	55	70
Nitroderivate	Trifluralin	55	70
Anilides	Alachlor	50	65
	Metholachlor	50	60
	Methoxychlor	55	75
Chlorophenols	Tetradiphon	40	40
	Dicofol	90	90
Chlorinated diphenyl	4,4′-Dichlrobenzophenone	5	30
Average		48	57