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Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination

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Department of Prostheses, Al-Dour Technical Institute, Northern Technical University, Saladin 41002, Iraq
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Department of Science, College of Basic Education, University of Wasit, Azizia, Wasit 52001, Iraq
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Department of Chemical Engineering, University of Tikrit, Saladin 41002, Iraq
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Environment and Water Directorate, Ministry of Science and Technology, Baghdad 10001, Iraq
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Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
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Department of Environmental Engineering, University of Tikrit, Saladin 41002, Iraq
*
Author to whom correspondence should be addressed.
Membranes 2019, 9(8), 101; https://doi.org/10.3390/membranes9080101
Received: 15 June 2019 / Revised: 7 August 2019 / Accepted: 12 August 2019 / Published: 15 August 2019
Reverse osmosis is a major process that produces soft water from saline water, and its output represents the majority of the overall desalination plants production. Developing efficient membranes for this process is the aim of many research groups and companies. In this work, we studied the effect of adding cellulose micro crystals (CMCs) and cellulose nano crystals (CNCs) to the support layer and thin film nanocomposite (TFN) membrane on the desalination performance. SEM, TEM, ATR-FTIR, and contact angle measurements were used to characterize the membrane’s properties; and membrane’s performance were evaluated by water flux and NaCl rejection. Filling 2% of CNCs gel in the support layer improved the water flux by +40%, while salt rejection maintained almost the same, around 95%. However, no remarkable improvement was gained by adding CNCs gel to m-phenylenediamine (MPD) solution, which was used in TFN membrane preparation. Filling CMCs powder in TFN membrane led to a slight improvement in terms of water flux. View Full-Text
Keywords: cellulose nano-crystals; cellulose micro-crystals; reverse osmosis; TFN membranes; desalination cellulose nano-crystals; cellulose micro-crystals; reverse osmosis; TFN membranes; desalination
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Kadhom, M.; Albayati, N.; Salih, S.; Al-Furaiji, M.; Bayati, M.; Deng, B. Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination. Membranes 2019, 9, 101.

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