Yogarathinam Lukka Thuyavan, Usman Jamilu, Othman Mohd Hafiz Dzarfan, Ismail Ahmad Fauzi, Goh Pei Sean, Gangasalam Arthanareeswaran, Adam Mohd Ridhwan
Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia; Department of Chemistry, Faculty of Science, Sokoto State University, P.M.B. 2134, Sokoto, Sokoto State, Nigeria.
J Hazard Mater. 2022 Feb 15;424(Pt A):127298. doi: 10.1016/j.jhazmat.2021.127298. Epub 2021 Sep 20.
In this study, an economic silica based ceramic hollow fiber (HF) microporous membrane was fabricated from guinea cornhusk ash (GCHA). A silica interlayer was coated to form a defect free silica membrane which serves as a support for the formation of thin film composite (TFC) ceramic hollow fiber (HF) membrane for the removal of microplastics (MPs) from aqueous solutions. Polyacrylonitrile (PAN), polyvinyl-chloride (PVC), polyvinylpyrrolidone (PVP) and polymethyl methacrylate (PMMA) are the selected MPs The effects of amine monomer concentration (0.5 wt% and 1 wt%) on the formation of poly (piperazine-amide) layer via interfacial polymerization over the GCHA ceramic support were also investigated. The morphology analysis of TFC GCHA HF membranes revealed the formation of a poly (piperazine-amide) layer with narrow pore arrangement. The pore size of TFC GCHA membrane declined with the formation of poly (piperazine-amide) layer, as evidenced from porosimetry analysis. The increase of amine concentration reduced the porosity and water flux of TFC GCHA HF membranes. During MPs filtration, 1 wt% (piperazine) based TFC GCHA membrane showed a lower transmission percentage of PVP (2.7%) and other suspended MPs also displayed lower transmission. The impact of humic acid and sodium alginate on MPs filtration and seawater pretreatment were also analyzed.
在本研究中，以几内亚玉米 husk 灰（GCHA）为原料制备了一种经济的二氧化硅基陶瓷中空纤维（HF）微孔膜。涂覆二氧化硅中间层以形成无缺陷的二氧化硅膜，该膜用作制备用于从水溶液中去除微塑料（MPs）的薄膜复合（TFC）陶瓷中空纤维（HF）膜的支撑体。聚丙烯腈（PAN）、聚氯乙烯（PVC）、聚乙烯吡咯烷酮（PVP）和聚甲基丙烯酸甲酯（PMMA）为选定的 MPs。还研究了胺单体浓度（0.5 wt% 和 1 wt%）对通过界面聚合在 GCHA 陶瓷载体上形成聚（哌嗪 - 酰胺）层的影响。TFC GCHA HF 膜的形态分析表明形成了具有窄孔排列的聚（哌嗪 - 酰胺）层。孔隙率分析表明，随着聚（哌嗪 - 酰胺）层的形成，TFC GCHA 膜的孔径减小。胺浓度的增加降低了 TFC GCHA HF 膜的孔隙率和水通量。在 MPs 过滤过程中，基于 1 wt%（哌嗪）的 TFC GCHA 膜对 PVP 的透过率较低（2.7%），其他悬浮 MPs 的透过率也较低。还分析了腐殖酸和海藻酸钠对 MPs 过滤和海水预处理的影响。
