Chemometric evaluation of different parameters for removal of tembotrione (agricultural herbicide) from water by adsorption and photocatalytic degradation using sustainable nanotechnology

Fractional multivariate design of experiments with seven factors was used to chemometrically evaluate adsorption tembotrione on the surface catalyst, efficiency photocatalytic degradation tembotrione, and removal efficiency. For adsorption, revealed two significant main effects (loading TiO2 concentration KBrO3) interactions × purging O2 loading stirring during 5 min before irradiation). Model for three (concentration KBrO3, O2, irradiation), while overall had four TiO2, irradiation) one factor interaction KBrO3). The optimal yield 99.5% 1.25 mg/ml, KBrO3 4.33 mM, β-cyclodextrin Au in ratio 2:1, 3 ml/min purging, irradiation. effect tert-butanol, NaF, EDTA 2Na, p-benzoquinone under experimental conditions suggested that relative contribution various reactive species changed following order: O 2 ∙ - ˃ ●OHads h+ ●OHfree.