چکیده مقاله
The present study focused on the usability of scallop shell coated Fe2O3 nanoparticles as an eco friendly new absorbent in the treatment of tetracycline TC The process performance in terms of TC removal was investigated at different operating conditions i e at solution pH of 7 11, Fe2O3 scallop dosage of 0 4 2 4 g L 1, initial TC content of 20 120 mg L 1, and temperature of 25 55 ℃ Solution pH of 7 yielded the highest TC removal efficiency 99% At this pH value, almost complete TC removal was achieved at a Fe2O3 scallop shell nanocomposite dose of 1 6 g L 1, and 25 C The responsible TC removal mechanism suggested as the non electrical dispersion interaction between the bulk system on the absorbent surface and TC molecules bearing both benzene rings and double bonds at this solution pH TC removal efficiency appreciably enhanced up to the Fe2O3 scallop dosage of 1 6 g L 1 being an optimum Adsorption rate found to be fast at lower initial TC concentrations than 40 mg L 1 The effect of temperature on TC removal efficiency was insignificant Adsorption followed the pseudo second order kinetic model Experimental data perfectly fitted by the Langmuir equation The maximum adsorption capacity was calculated as 49 26 mg g 1 Thermodynamic analysis demonstrated that adsorption process was a spontaneous process and endothermic The results obtained from present study proved the excellent performance of scallop shell coated Fe2O3 nanoparticles as an eco friendly adsorbent in TC treatment
نویسندگان
Dariush Naghipour
School of Health, Guilan University of Medical Sciences Rasht, Iran
Kamran Taghavi
School of Health, Guilan University of Medical Sciences Rasht, Iran
Fatemeh Javan Mahjoub Doust
School of Health, Guilan University of Medical Sciences Rasht, Iran
Jalil Jaafari
School of Health, Guilan University of Medical Sciences Rasht, Iran
شیوه ارجاع
Naghipour, Dariush and Taghavi, Kamran and Javan Mahjoub Doust, Fatemeh and Jaafari, Jalil,1400,Scallop shell coated Fe2O3 nanocomposite as an eco-friendly adsorbent for tetracycline removal,10th International Conference on Innovation and Research in Engineering Sciences
ارائهشده در
مجموعه مقالات دهمین کنفرانس بین المللی نوآوری و تحقیق در علوم مهندسی20 آبان 1400