Enhanced Nanofiltration Performance of the PVC/PVA Thin Film Membranes for Treatment of Petroleum Refinery Wastewater through Incorporation of Amino-functionalized SBA-15 Nanoparticles
Milad Hermani, Hossein Abdollahi-Esfahlani, Amir Sadeghi, Abolfazl Sadeghiazar Sharabiani, Erfan Shafaati, Ali Imani, Ahdieh Amjadi, Atena Daneshvar
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Abstract
Thin film nanocomposite (TFN) membranes have shown remarkable potential for the extensive application in various areas, such as industrial and domestic wastewater treatment, dye desalination, and chemicals separation and purification. This work proposes a highly efficient TFN membrane by incorporation of the amine-functionalized ordered mesoporous silica (APTES-SBA-15) nanoparticles into the polyvinyl alcohol (PVA) top layer of a polyvinylchloride (PVC)-based membrane. The superior TFN membranes were fabricated through a facile and optimum preparation method consisting of immersion-precipitation phase inversion followed by dip-coating method to address the challenges hindering performance. The physicochemical characteristics of the synthesized nanoparticles and prepared TFN membranes were studied using a variety of techniques including XRD, FTIR, AFM, FE-SEM and contact angle measurements. The presence of APTES-SBA-15 nanoparticles in TFN membrane enables efficient separation of contaminants compared to pure thin film composite (TFC) and SBA-15 TFN membranes that were investigated by calculating the values of various parameters such as water flux, flux recovery ratio (FRR), rejection percentage, total fouling ratio (TFR), and irreversible fouling ratio (IFR). A more hydrophilic TFN membrane containing 0.50 wt% APTES-SBA-15 nanoparticles (M3 membrane) exhibits a rejection performance of 91.41%, TFR value of 88.89% and IFR value of 11.11% with a total organic carbon (TOC) content of 15.05 mg/L for the treatment of petroleum refinery wastewater.
期刊介绍：
The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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