Sorption based easy-to-use low-cost filters derived from invasive weed biomass for dye contaminated water cleanup.

Autor: Kamath SV; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., Manohara HM; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., Aruchamy K; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., Maraddi AS; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., D'Souza GB; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., Santhosh KN; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., Mahadevaprasad KN; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com., Nataraj SK; Centre for Nano and Material Sciences, JAIN University Jain Global Campus Bangalore 562112 India sk.nataraj@jainuniversity.ac.in sknata@gmail.com.; IMDEA Water Institute Avenida Punto Com, 2. Parque Científico Tecnológico de la Universidad de Alcalá Alcalá de Henares 28805 Madrid Spain.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2022 Mar 23; Vol. 12 (15), pp. 9101-9111. Date of Electronic Publication: 2022 Mar 23 (Print Publication: 2022).
DOI: 10.1039/d2ra00670g
Abstrakt: Today, the development of functional nanostructured materials with specified morphologies utilizing environmentally friendly techniques is a very appealing topic in materials chemistry. Much emphasis has recently been paid to the utilization of biomass to make functional carbonaceous materials of varying forms, specifically carbon helices, with greater implications for the environment, economy, and society. A metal-catalyzed chemical vapour deposition technique has been developed for the fabrication of such carbon helices from nonrenewable hydrocarbons. Also, functionalization approaches were seen to necessitate high temperatures, hazardous gases, and multi-step processes. Herein, we have synthesized tendril-like functional carbon helices (HTCs) from toxic bio-weed, Parthenium hysterophorus as the carbon source by a greener solvothermal method employing deep eutectic solvent (DES) as both soft template and catalyst. Further, for the first time by taking advantage of the in-built chemical functionalities, HTCs were physically activated in an inert atmosphere at 900 °C (AHC) and functionalized with manganese oxide at room temperature by employing DES. Furthermore, the materials were characterized using FE-SEM, EDX, FT-IR, XRD, and BET analysis, where a surface area of 313.12 m 2 g -1 was achieved with a robust removal of 99.68% of methylene blue (MB) dye with a flux rate of 7432.71 LMH in a simulated continuous flow system. The obtained material was also evaluated for its specificity towards contaminant removal from an aqueous medium. Thus, Mn 3 O 4 /AHC membranes exhibited great promise as an easy-to-use filter for organic contaminant cleanup, with about 91% rejection of MB even at the end of the 10 th cycle, indicating its potential.
Competing Interests: The authors state that they have no known competing financial interests or personal ties that may have influenced the work presented in this study.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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