Abstract：p-Nitrophenol (4-NP) is a representative pollutant in water. Reduction to p-aminophenol by sodium borohydride is a feasible water treatment method. In this work, TiO2-supported platinum copper nanoalloys (Pt2Cu3/TiO2) with high 4-NP activity for catalytic reduction through sodium borohydride were prepared and screened by impregnation method. Through kinetic experiments, the "time - concentration" data of the 4-NP reduction reaction catalyzed by Pt2Cu3/TiO2 was converted into "reaction rate - concentration" data, which confirmed that the reaction was a first-order reaction and established the kinetic equation of power exponential type. According to the Langmuir-Hinshelwood (L-H) adsorption reaction mechanism, the unknown parameters of the intrinsic kinetic equation were regression fitted, including the reaction rate constant, the adsorption constant of the reaction substrate, the apparent activation energy and other thermodynamic parameters.
XIA Xinping,WU Feixiong,ZHU Xiaoting et al. Reduction Reaction of p-Nitrophenol Catalyzed by Pt-based Bimetal[J]. Chemical Reaction Engineering and Technology, 2024, 40(5): 394-402.
