Photocatalytic Degradation of Bisphenol A from Aqueous Solutions using TiO2 Nanoparticles and UV Illumination
Background and Purpose: Bisphenol A (BPA) is used to make certain plastics and epoxy resins. It is a non-biodegradable compound, and poses health risks to both humans and animals. The purpose of this study was to evaluate decomposition efficiency of BPA from aqueous solutions using UV irradiation. Materials and Methods: In this study, the photodegradation of BPA in water were carried out in a reactor equipped 6 W UV lamp. In order to obtain the optimum operational conditions, parameters such as BPA concentration (1-50 mg/l), TiO2 dosage (0.025-2 g/l), and pH (3-11) were evaluated. BPA concentration was measured by high-performance liquid chromatography. Results: The highest degradation was 90% and achieved in 60 min. BPA degradation efficiency can be effectively improved by increasing pH, decreasing the initial concentration and increasing TiO2 dosage. The optimal dose of TiO2 was measured at 0.5 g/l. The degradation decreases with increasing TiO2 dosage. Conclusion: Photocatalytic degradation by using TiO2 and low power UV lamp is applicable.
photocatalytic degradation of bisphenol a from aqueous solutions using tio2 nanoparticles and uv illumination
Photocatalytic Degradation of an Anionic Surfactant by Tio2 Nanoparticle under UV Radiation in Aqueous Solutions
In this paper the photocatalytic degradation of the anionic surfactant, linear alkylbenzene sulfonicacid (LABSA) was investigated using UV radiation in the presence of TiO2. Our findingsdemonstrate that various parameters exert their individual influence on the photocatalytic degradationof surfactant in wastewaters. The mentioned parameters have been categorized as follow: the initialpH of the ...متن کامل
High efficient degradation of Cefixime using UV/TiO2 photocatalytic process: A comparison between photocatalytic and photolytic
Introduction: The existence of pharmaceuticals in aquatic ecosystem, their persistence and possible effects on living organisms and inefficient systems in removal of these compounds from water and wastewater are a growing concern. In this research, the UV/TiO2 photocatalytic degradation of Cefixime was investigated so as to identify if this method was efficient for removal of Cefixime or not. ...متن کامل
Photocatalytic degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution using UV/TiO2 and UV/H2O2/TiO2 photocatalysis
Adsorption and Photocatalytic Properties of Surface-Modified TiO2 nanoparticles for Methyl Orange Removal from Aqueous Solutions
Titanium dioxide nanoparticles surface-modified by 5-sulfosalicylic acid 5-SA-TiO2 were prepared in ethanol by the chemisorption process. The effects of surface improvement on the photocatalytic degradation and adsorption of methyl orange MO were studied in a batch system by considering the various parameters, such as contact time, adsorbent dosage, pH, initial dye concentration and temperature...متن کامل
Photocatalytic Decolorization of Uranine Using UV/S2O8 and UV/H2O2 Processes from Aqueous Solutions: A Laboratory Study
Background and Objectives: The entry of textile mills’ wastewater into the environment causes severe disruption to aquatic environments. Thus, the aim of this study was to compare the performance of processes of UV/ S2O8 and UV/H2O2 in removal of Uranine dye from aqueous solutions. Materials and Methods: In this laboratory study, in a batch reactor, the efficiency of UV/S2O8 and UV/H2O2 photoc...متن کامل
دوره 2 شماره None
صفحات 15- 20
تاریخ انتشار 2014-12
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