Journal Pre-proofs Preparation of positively charged thin-film nanocomposite membranes based on the reaction between hydrolyzed polyacrylonitrile containing carbon nano- materials and HPEI for water treatment application Elham Valamohammadi, Fatemeh Behdarvand, Maryam Ahmadzadeh Tofighy, Toraj Mohammadi PII: S1383-5866(20)30271-9 DOI: https://doi.org/10.1016/j.seppur.2020.116826 Reference: SEPPUR 116826 To appear in: Separation and Purification Technology Received Date: 16 January 2020 Revised Date: 14 February 2020 Accepted Date: 7 March 2020 Please cite this article as: E. Valamohammadi, F. Behdarvand, M. Ahmadzadeh Tofighy, T. Mohammadi, Preparation of positively charged thin-film nanocomposite membranes based on the reaction between hydrolyzed polyacrylonitrile containing carbon nanomaterials and HPEI for water treatment application, Separation and Purification Technology (2020), doi: https://doi.org/10.1016/j.seppur.2020.116826 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier B.V.