Ultrasonic irradiati on and m agnetic polymeric s orbent for complete removal of p-nitr ophenol

P-Nitrophenol is considered priority to xic pollutants by the United State s Environm ental Protection Agenc y and the maximum allowed concentration in water is in the range of ۱–۲۰ ppb. The ever increasing di scharge of these comp ounds into the environment has caused various problems in water and wastew ater treatm ent systems because they can not be effectively treated by traditional tech nologies such as biological deg radation, so lvent extraction, and adsorption [۱, ۲].Mate rials and m ethods:The s orbent used in this study was mag netic polymeric sorbent that used for removal of P-nitrophenol from aqueous solution.The n, the sorbent and s olution were separated by centri fuge. After separation, the concentration of pollutant was determined by U V–vis spectrophotometer. Appa ratus: The ultrasonic irradiation with equip ment operating at ۲۰ kHz (W- ۴۵۰ D), X-ray diffrac tometer (X RD, Phlips PW۱۸۰۰), Fourier transform in frared (FT-IR) spectrometer (Avat ar ۳۷۰). Transmission electron microscopy ( TeM, Leo ۹۱۲ AB ), S canning electron microscopy (SE M). UV–vis spectrophotometer (Un ico ۲۸۰۰), centrifuge by Universal ۳۲۰ (Hettich Zentrifugen Germany ) .

کلیدواژه ها:

Ultrasound ، P-n itrophenol ، Nanomagnetic sorbent