Nghiên cứu đặc điểm phản ứng phân hủy 2,4-dinitrotoluen, nitro glycerin trong môi trường nước bằng tác nhân fenton

This paper introduces the research results on the oxidative decomposition reaction characteristics of 2,4-dinitrotoluen (DNT), nitroglycerin (NG) pollution in water by the Fenton agent. The obtained results showed that Fenton process could decompose DNT and NG. Test results also showed that the decomposition reaction DNT and NG by Fenton agents follow the rules of pseudo first-order reaction and the rate of decomposition of DNT larger decay rate NG

Nghiên cứu đặc điểm động học quá trình phân hủy axit 2,4-diclophenoxy axetic trong môi trường nước bằng hệ xúc tác Fe(III)-TAML/H2O2

Iron(III)–TAML (Tetra-Amindo Macrocyclic Ligand) complex is an advanced green oxidation catalyst and reactive capabilities of the catalytic through the catalyzed activation process by peroxide to form Fe-oxo intermediates that the oxidation number of Fe element is +4 or +5. Although many factors influence the of the decomposition kinetic of 2,4-D in water by Fe(III)-TAML/H2O2 catalytic system but two factors are pH and the concentration ratio of Fe (III) -TAML/2.4-D are more important than the whole. Degradation kinetics of 2,4-D in water by Fe(III)-TAML/H2O2 catalytic system are researched by changing of 2,4-D concentration, that changings are determined by using  high-performance liquid chromatography analysis method (HPLC), the peaks of 2,4-D characterized by the retention time t = 4.17 min. With pH values ranging from 7 to 12, kinetic of oxidation reaction fit to the pseudo first-order form. While changing the mole concentration ratio of Fe(III)-TAML/2,4-D, if the ratio is low showing that the reaction rate  is first-order  but when the mole concentration ratio of Fe(III)-TAML/2,4-D is high, the pseudo first-order form is not true. When change the temperature of the reaction we can calculate the k' rate constants and activation energy of the oxidation reaction Ea = 17.027 (kJ /mol). Keywords. Kinetic, Fe(III)–TAML/H2O2 catalyst, degradation of 2,4-D

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270 tr. ; 21 cm

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269 tr. ; 210 c

Cơ sở lý thuyết hoá đại cương : Phần cấu tạo chất

269 tr. ; 21 c

Cơ sở lý thuyết hoá đại cương : Phần các quá trình hoá học

203 tr. ; 21 c