Journal of Catalysts · 2012 · 42 citations · 22 references
Natural SciencesChemical EngineeringChemistryNanomaterialsWater Quality EngineeringWater TreatmentBiodegradationDegradation ProductsNanocatalysisPhotocatalysisPhotochemical KineticsPhotochemistryLaboratory-scale ReactorsMicroextractionNanostructured PhotocatalystsOrganic Pollutant DegradationPhotocatalytic DegradationPhotocatalytic KineticsPhotocatalytic NanomaterialsSolid-phase Microextraction
The study of photocatalytic degradation of phenol was exploited with nano-ZnO as immobilized photocatalysts in a laboratory scale photocatalytic reactor. The photocatalytic degradation mechanism and kinetics of phenol in water were studied using the solid-phase microextraction (SPME) technique. Based on optimized headspace SPME conditions, phenol in water was first extracted by the fibre, which was subsequently inserted into an aqueous system with immobilized photocatalysts (nano-ZnO) exposed to an irradiation source (i.e., ultraviolet A (UVA) lamps). After different irradiation times (5–80 min), four main intermediates of photocatalytic degradation generated on the fibre were determined by GC-MS.
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