ItemArticle

Functional carbon nanospheres from mulberry leaves for improved flux, fouling resistance and dye rejection

Title
Functional carbon nanospheres from mulberry leaves for improved flux, fouling resistance and dye rejection
Creator
Patel, B.G. Maya; Islam, Sk Safikul; Mandal, Samir; Bose, Suryasarathi; Hegde, Gurumurthy
Description
Carbon-based nanomaterials obtained from biological sources have emerged as promising candidates for advanced water remediation. In this research, carbon nanospheres (CNS) were synthesized using a one-step pyrolysis method, utilizing mulberry leaves as a precursor. The CNS were further modified through surface functionalization with the addition of carboxyl groups to enhance surface hydrophilicity, contributing to improved membrane performance. The functionalized carbon nanospheres (FCNS) ranging from 0.1 to 0.6 wt% were incorporated into Polysulfone (PSF) membranes. Scanning electron microscopy (SEM) analysis revealed the spherical nature and average size found to be 6070 nm. The PSF/FCNS composite membranes were casted via phase inversion method. The fabricated PSF/FCNS composite membranes with 0.0, 0.1, 0.2, 0.4 and 0.6 wt% FCNS concentrations were defined as M-0, M-1, M-2, M-3 and M-4 respectively. SEM, Contact angle, Pure water flux and Antifouling ability using Bovine serum albumin (BSA) were conducted to achieve the target of this paper. Among the developed membranes, the M-2 variant, with 0.2 wt% FCNS, demonstrated optimal performance, exhibiting improved hydrophilicity from 77.49 to 65.48 and reduced surface roughness. This resulted in an increased pure water flux (PWF) of 632.5 L m?2 h?1 and a flux recovery ratio (FRR) of 93.54 %. Furthermore, M-2 achieved dye rejection rates 96.5 % and 95 % for methylene blue and congo red, respectively. These findings underscore the potential of low-cost, bio-derived FCNS as efficient nanofillers for developing high-performance membranes, offering a suitable approach to tackle the multifaceted challenges of water treatment applications. 2025 Elsevier Ltd
Source
Journal of Environmental Chemical Engineering;Volume;13;Issue;2;Article No.;115879;
Date
01-01-2025
Publisher
Elsevier Ltd
Subject
Antifouling; Biomass; Carbon nanospheres; Dye rejection; Ultrafiltration membrane
Coverage
Patel B.G.M., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Karnataka, Bengaluru, 560029, India; Islam S.S., Department of Materials Engineering, Indian Institute of Science, Karnataka, Bengaluru, 560012, India, Department of Chemistry, School of Engineering, Presidency University, Karnataka, Bengaluru, 560064, India; Mandal S., Department of Materials Engineering, Indian Institute of Science, Karnataka, Bengaluru, 560012, India; Bose S., Department of Materials Engineering, Indian Institute of Science, Karnataka, Bengaluru, 560012, India; Hegde G., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Advanced Research and Development (CARD), Christ University, Karnataka, Bengaluru, 560029, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 22133437;
Format
online
Language
English
Type
Article

Citation

Patel, B.G. Maya; Islam, Sk Safikul; Mandal, Samir; Bose, Suryasarathi; Hegde, Gurumurthy, “Functional carbon nanospheres from mulberry leaves for improved flux, fouling resistance and dye rejection,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22334.

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