| Summary: | 碩士 === 高雄師範大學 === 化學系 === 98 === Abstract
The industry is developed fast and the chlorophenols (CPs) are frequently present in industrial wastewaters in Taiwan. Chlorophenols are toxic and disgusting if they would not be treated effectively, they will seriously endanger the environment quality of river
In this work, the microwave-enhance catalytic degradation (MECD) of 2-chlorophenol (2-CP) using nickel oxide was studied. Nickel oxide was prepared by microwave-assisted hydrothermal technique from nickel nitrate aqueous solution and sodium hypochlorite. The as-prepared catalyst (assigned as PMO) was characterized by thermogravimetric analyzer (TGA), powder x-ray diffraction (PXRD), temperature-programmed reduction (TPR), fourier transform-infrared ray (FT-IR) and field-emission scanning electron microscope (FE-SEM).
The nickel oxides catalytic degradation activities to 2-chlorophenol were studied under continuous bubbling of air into an aqueous reaction mixture under ice-bathed environment.
The catalytic activities of the PMO catalyst towards the degradation of 2-chlorophenol have been investigated. The catalytic activity experiments were carried out under continuous bubbling of air through the liquid phase and further quantitatively evaluated by high performance liquid chromatography (HPLC) with UV-Vis detector. To optimize the catalyst performances of PMO catalyst for the MECD of 2-chlorophenol, the effects of various parameters, such as initial concentration, reaction temperature, initial pH value, dosage of catalyst were investigated.
The optimized MECD condition for the degradation of 2-chlorophenol (initial concentration at 200 mg/L ) is more than 80% within 10 minutes under pH=4 at 70oC.
|
|---|
