A Study of Isotherms and Adsorption Kinetic of Di (2-Ethylhexyl)Phthalate by Nano Cellulose from Aqueous Solutions

  • سال انتشار: 1396
  • محل انتشار: فصلنامه بهداشت محیط و توسعه پایدار، دوره: 2، شماره: 2
  • کد COI اختصاصی: JR_JEHSD-2-2_004
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 393
دانلود فایل این مقاله

نویسندگان

Sima Makzoom

Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, and Student Research Center and Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran

Nezamaldin Mangolizade

Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, and Student Research Center and Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences,Isfahan, Iran

Tayebe Kalte

Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, and Student Research Center and Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences,Isfahan, Iran

Pegah Salehi

Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, and Student Research Center and Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences,Isfahan, Iran

چکیده

Introduction: Di (2-ethylhexyl) phthalate is one of the most abundant phthalate esters and it is widely used as softeners in plastic products. Malformation, carcinogenicity, the poisoning of the reproductive system, and also the disruption of the human endocrine system are the harmful effects of these substances. Materials and Methods: In this research, the removal of di (2-ethylhexyl) phthalate from aqueous solutions by cellulose nanofiber non-continuous was studied. The effects of some variables such as the initial concentration of the di (2-ethylhexyl) phthalate, the adsorbent dosage, the contact time, and the pH atroom temperature were tested. The pseudo-first-order and pseudo-second-order kinetic models were used to describe the kinetic data. furthermore, the Freundlich and Langmuir adsorption models were tested based on the optimum conditions.Results: The results indicated that the adsorption of di (2-ethylhexyl) phthalate follows the pseudo-second-order kinetic model (R2 = 0.9674) and the Langmuir isotherm (R2 = 0.9573). Conclusion: Due to the high adsorption capacity of the cellulose nano fiber (312.5 mg/gr), it can be concluded that it is an appropriate adsorbent for removal of di (2-ethylhexyl) phthalate from aqueous solutions

کلیدواژه ها

Diethylhexyl Phthalate,Nano Cellulose, Aqueous Solutions, Adsorption Kinetic

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.