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Item Effective removal of hazardous atrazine and chlorpyrifos by waste PET bottles-derived linker having novel MIL-53(Al)/PMMA-nanofiber incorporated poly(vinylidene) fluoride membranes(Elsevier Ltd, 2025) Prabhakar, N.; Isloor, A.M.; Farnood, R.Synthesis of novel MIL-53(Al)/PMMA nanofiber and its incorporation into PVDF thin-film composite flat-sheet membranes for the rejection of hazardous herbicides and pesticides from water is the crux of this work. Initially, poly (methyl methacrylate) polymer dope solution with MIL-53(Al) dispersed in the matrix was subjected to electrospinning to get a novel nanofiber. The linker terephthalic acid, here was derived from waste PET bottles. Both the MOF and nanofibers were characterized using BET, FTIR, zeta potential, and XRD. The optimized nanofibers were used as additives in the TFC in different weight percentages using synthesized porous PVDF as support. TFC Membranes were analyzed by pure water flux, chlorpyrifos, and atrazine rejection. MPM-2 with 0.05 wt% nanofiber gave a pure water flux of 18.6824 Lm?2h?1. The rejection of chlorpyrifos (a hazardous pesticide) was 86.8 % for MPM-2 membranes and atrazine (a herbicide) gave rejection of 60.48 %. Further, membranes gave excellent antifouling property with FRR of 95.45 %. © 2025 Elsevier LtdItem High performance 2D molybdenum MXene polyphenylsulfone membranes for boosting water flux and efficient removal of humic acid, antibiotic and dyes from wastewater(Elsevier B.V., 2025) Satishkumar, P.; Isloor, A.M.; Farnood, R.MXene, a leading two-dimensional material, is attracting scientists due to its rich polar surface termination and compatibility. Through the etching of an aluminum layer from Mo3AlC2, we have effectively produced molybdenum MXene Mo3C2Tx (where T stands for polar moieties like –OH and ?F) and used it to fabricate a new Mo3C2Tx embedded mixed matrix membrane. By the incorporation of highly hydrophilic Mo3C2Tx MXene into polyphenylsulfone (PPSU) membrane, its water flux tremendously increased to a peak value of 290 L m-2h?1 and is higher than 300 % compared to pristine polyphenylsulfone membrane without Mo3C2Tx MXene. Water contact angle study of Mo3C2Tx MXene embedded membranes showed improvement in hydrophilicity with an increase in its loading. Mo3C2Tx-PPSU membrane demonstrated appreciable antifouling nature and pollutant separation efficacy. The optimal membrane revealed 98.68 %, 96.7 %, 84.72 %, and 80.2 % removal of toxic contaminants like humic acid, RB 5 dye, RO 16 dye, and tetracycline antibiotic, respectively. This study offers a novel Mo3C2Tx embedded polyphenylsulfone membrane for wastewater treatment that eliminates potentially harmful humic acid, antibiotics, and dyes. © 2025Item A polysulfone/MIL-125(Ti) mixed matrix membrane for removing toxic dyes and heavy metals from water(Springer Science and Business Media Deutschland GmbH, 2025) Shivarama, B.; Isloor, A.M.; Murthy, C.S.; Prabhu, B.; Abdul Rashid, S.A.In this work, a titanium-incorporated metal–organic framework nanoadditive was used to study its efficiency in removing heavy metals and dyes from contaminated water. The use of MIL-125 (Ti) nanoadditive-incorporated polysulfone membranes has been tested for the elimination of heavy metals such as cadmium and lead as well as synthetic dyes, such as reactive black-5 (RB-5) and reactive orange -16 (RO-16). The incorporation of metal–organic frameworks (MOFs) into polysulfone matrices can increase the performance of the membrane for specific applications, such as dye removal and heavy metal rejection. The MIL-125 (Ti) is a well-known MOF with excellent chemical stability, large surface area, and adjustable pore size, making it suitable for membrane fabrication. This study fabricated membranes composed of MIL-125(Ti) and polysulfone (PSF) with MOF doses ranging from 0.5 to 3 wt %. Compared with the pristine PSF membrane, the pore-forming agent PVP was used at a 12% concentration, increasing the pore size and porosity. The hydrophilicity, water flux, and antifouling nature of the fabricated membrane were studied. The dye removal and heavy metal rejection experiments were carried out, and a dye removal efficiency of 90% for RB-5 and 47% for RO-16 was exhibited by the M-1 membrane. Furthermore, the M-2 membrane resulted in heavy metal rejection of 89.33% for Cd2+, and M-3 resulted in 68.81% for Pb2+ at a feed concentration of 500 ppm. Hence, the membranes showed good stability and efficiency with a high feed concentration of heavy metals. In the present study, metal ion rejection was studied without the use of any complexing agents. © King Abdulaziz City for Science and Technology 2025.
