Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 332, Issue -, Pages 112-123Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2017.03.009
Keywords
Sulphonated polysulphone; Composite membranes; Separation of Cr (VI); TiO2; Recovery of Cr (III)
Categories
Funding
- Thailand Research Fund, Chulalongkorn University, Bangkok, THAILAND [IRG 578001]
- Jain University
- Ministry of Drinking Water Resources
- Department of Science and Technology, INDIA
Ask authors/readers for more resources
Hydrophobic polysulphone (PSf) was reformed into a hydrophilic polymer by sulphonation (via electrophilic substitution) and was subsequently made into a composite by incorporating nano titania to reduce Cr (VI) in the concentrated feed to Cr (III), thus eliminating the hazards of Cr (VI). The modified polymer and its composites were characterized by spectroscopic and microscopic techniques. The composite membranes exhibited enhanced hydrophilicity and flux and were evaluated for the rejection of chromium. The effect of pH and interference of counter ions towards rejection was studied. The charges fixed on the surface of the membrane due to titania, support ionic interactions and facilitated the rejection process. Essentially, rejection of up to 98% was achieved. The innovation of using a bifunctional membrane for the rejection of Cr (VI) together with the removal of its toxicity by photocatalytic reduction, leading to the potential recovery of Cr (III), highlight the uniqueness of this work. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available