ساخت غشای پلی وینیلیدن فلوراید/گرافن اکساید کاهش یافته سنتز شده با روش سبز به‌منظور استفاده در نمک‌زدایی به روش تقطیر غشایی

نوع مقاله : ترویجی

نویسندگان

1 دانشجوی دکتری، مرکز پژوهش و فناوری فرآیند‌های غشایی، دانشکده مهندسی شیمی، دانشگاه علم و صنعت ایران، تهران

2 استاد،مدیر قطب غشا، دانشکده مهندسی شیمی، دانشگاه علم و صنعت ایران، تهران

3 استادیار، دانشکده مهندسی شیمی، دانشگاه علم و صنعت ایران، تهران

چکیده

تقطیر غشایی به‌عنوان یک فناوری غشایی در حال رشد، طی چند دهه گذشته در سراسر جهان موردتوجه قرار گرفته است. با استفاده از فرآیند تقطیر غشایی، نمک‌زدایی آب با شوری بالا امکان‌پذیر است. در این پژوهش، گرافن اکسید کاهش یافته با استفاده از یک روش سبز شیمیایی سنتز شد. سپس ساختار و خواص آن با انجام آنالیزهای FTIR و FESEM ارزیابی شد. در مرحله بعد، گرافن اکسید کاهش یافته سنتز شده بر سطح غشای پلی وینیلیدن فلوراید به روش فیلتراسیون خلأ، لایه نشانی شد. عملکرد غشای مرکب ساخته شده در فرآیند تقطیر غشایی خلأ مورد ارزیابی قرار گرفت و پس‌زنی نمک 99/99 درصد و شار  11/8LMH به دست آمد.

کلیدواژه‌ها


عنوان مقاله [English]

Fabrication of Polyvinylidene Fluoride/Reduced Graphene Oxide Membrane Synthesized with a Green Method for Using in Desalination by Membrane Distillation

نویسندگان [English]

  • Saeed Seraj 1
  • Toraj Mohammadi 2
  • Maryam Ahmadzadeh Tofighy 3
1 PhD Student, Iran University of Science and Technology, Tehran, Iran
2 Distinguished Professor, Iran University of Science and Technology, Tehran, Iran
3 Assistant Professor, Iran University of Science and Technology, Tehran, Iran
چکیده [English]

Membrane distillation, as a growing membrane technology, has gained worldwide attention over the past few decades. It is possible to desalinate seawater by using membrane distillation process. In this project, reduced graphene oxide was synthesized by a green chemical method. Then, the structure and properties of the synthesized reduced graphene oxide was evaluated by performing FTIR and FESEM analyzes. Next, the synthesized reduced graphene oxide was coated on the polyvinylidene fluoride membrane by vacuum filtration method. Then, structural and functional evaluation of the fabricated composite membrane was performed in vacuum membrane distillation process. The optimized composite membrane reached 99.99% of salt rejection and 11.8 LMH of flux.

کلیدواژه‌ها [English]

  • membrane distillation
  • Desalination
  • Reduced graphene oxide
  • Polyvinylidene Fluoride
  • Coating
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