Приказ основних података о документу

dc.creatorMohammad, Ahmad Hakky
dc.creatorRadović, Ivona
dc.creatorIvanović, Marija
dc.creatorKijevčanin, Mirjana
dc.date.accessioned2022-10-06T11:02:07Z
dc.date.available2022-10-06T11:02:07Z
dc.date.issued2022
dc.identifier.issn2071-1050
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/5224
dc.description.abstractWater hyacinth biomass was used for the synthesis of activated carbons in the process of chemical activation with H3PO4, followed by controlled carbonization. The study investigates the effect of various impregnation weight ratios of H3PO4 and dry hyacinth (0.5–3.0), as well as different carbonization temperatures (T = 400–800 °C), on the surface characteristics of the produced activated carbons (AC). The activated carbon obtained with an impregnation ratio of 1.5 and a carbonization temperature of 600 °C (1.5 AC/600) showed the highest values of specific surface area of 1421 m2 g−1, representing a selected adsorbent for metformin removal. The chosen sample was characterized by elemental analysis, adsorption–desorption isotherms of nitrogen at −196 °C, via FTIR spectroscopy and the SEM method. The modeling of the experimental adsorption data showed that metformin adsorption: (i) can be best described by the Langmuir isotherm model, with the value of qmax = 122.47 mg g−1; (ii) led the pseudo-second order kinetic model; and (iii) is a spontaneous (ΔG° = −3.44 kJ mol−1) and endothermic (ΔH° = 8.77 kJ mol−1) process. A desorption study has shown that 92% of metformin was successfully desorbed in the presence of a 0.1 MHCl/ethanol mixture (volume ratio 2:1). The recovery of the adsorbent of 84%, after five successive cycles, indicated that the 1.5 AC/600 has potential to be applied in the real systems for water treatment.sr
dc.language.isoensr
dc.publisherMDPIsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS//sr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceSustainabilitysr
dc.subjectactivated carbonsr
dc.subjectisothermsr
dc.subjectkineticssr
dc.subjectmetformin hydrochloride adsorptionsr
dc.subjectwater hyacinth biowastesr
dc.titleAdsorption of Metformin on Activated Carbon Produced from the Water Hyacinth Biowaste Using H3PO4 as a Chemical Activatorsr
dc.typearticlesr
dc.rights.licenseBYsr
dc.citation.issue18
dc.citation.rankM22~
dc.citation.spage11144
dc.citation.volume14
dc.identifier.doi10.3390/su141811144
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/12888/bitstream_12888.pdf
dc.identifier.scopus2-s2.0-85138706891
dc.type.versionpublishedVersionsr


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Приказ основних података о документу