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Fabrication and characterization electrospun clinoptilolite filled polylactic acid composite membrane: purification of multiple impurities from water
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Scientists created a new water filter membrane by combining a natural mineral (clinoptilolite) with a plant-based plastic (PLA), and it was remarkably effective at removing common water pollutants all at once, trapping 100% of tested microplastics, over 90% of a dye contaminant, and nearly 88% of oil. This matters because most water treatment systems struggle to catch multiple types of pollutants simultaneously, and microplastics in particular are an emerging health concern since they can end up in our drinking water and bodies; this membrane offers a promising, more efficient approach to cleaning water before it reaches us.
In this study, electrospun clinoptilolite (Clp)- polylactic acid (PLA) nanocomposite membranes were produced and used for dyestuff (methylene blue, MB), oil (soybean oil), microplastic (Polyamide 66, PA66), and Linear Alkyl Benzene Sulfonate (LAS) rejection from simulated gray water. The membrane's physical, chemical, thermal, morphological, mechanical, and antimicrobial properties were investigated regarding Clp incorporation. According to the characterization results, the empirical porosity of the membrane was found to be between 79 % and 83 %. The PLA membrane's water uptake capacity, surface hydrophilicity , and mechanical strength were improved with Clp incorporation. All membranes show antimicrobial effects against both gram-positive and negative bacteria. According to the filtration test results, MB separation was above 90 %. The highest oil rejection was found to be 87.84 % using 4 wt% Clp loaded membrane. All membranes rejected 100 % of microplastic . 66.6 % of LAS rejection was achieved with 3 wt% Clp loaded membrane. All separation and characterization results show that Clp-doped PLA membranes have the potential to be used as a filtration membrane that can simultaneously separate all impurities from water.
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