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Effectiveness of Artificially Synthesized Granitic Residual Soil-Supported Nano Zero-Valent Iron (Gr-nZVI) as Effective Heavy Metal Contaminant Adsorbent

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dc.citedby4
dc.contributor.authorZarime N.?.en_US
dc.contributor.authorSolemon B.en_US
dc.contributor.authorWan Yaacob W.Z.en_US
dc.contributor.authorJamil H.en_US
dc.contributor.authorChe Omar R.en_US
dc.contributor.authorOyekanmi A.A.en_US
dc.contributor.authorid56593247000en_US
dc.contributor.authorid24832320000en_US
dc.contributor.authorid59158386400en_US
dc.contributor.authorid23975896800en_US
dc.contributor.authorid57903899400en_US
dc.contributor.authorid57194067040en_US
dc.date.accessioned2024-10-14T03:19:00Z
dc.date.available2024-10-14T03:19:00Z
dc.date.issued2023
dc.description.abstractSupported nano zero-valent iron is receiving great attention nowadays due to its effectiveness in treating heavy metal pollutants. Therefore, this study aimed to investigate the effectiveness of granitic residual soil-supported nano zero-valent iron (Gr-nZVI) for the removal of the heavy metals Pb2+, Cu2+, Co2+, Cd2+ Ni2+ and Zn2+ in mixture solutions under different experimental conditions of batch equilibrium tests. In this study, Gr-nZVI was successfully synthesized by using the chemical reduction of Ferric Chloride Hexahydrate (FeCl3.6H2O) and Sodium Borohydride (NaBH4). The physical and chemical properties, morphology and mineralogy of all adsorbents were characterized by the Braeuer�Emmett�Teller (BET) method, cation exchange capacity (CEC), X-ray fluorescence (XRF), scanning electron microscopy (SEM), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Isotherm, kinetic and diffusion model analyses were conducted to fit the experimental data. The results show rapid adsorption within 5 min in the initial adsorption stage for Pb2+ on nZVI (qe.Pb = 17.89 mg/g) and Gr-nZVI (qe.Pb = 15.29 mg/g). nZVI and Gr-nZVI also showed no significant effects on pH and temperature, serving as a good example of an energy-efficient process. The isotherm data fitted better to the Langmuir model and the pseudo-second-order kinetic model for the adsorption of all of the heavy metals. The diffusion models revealed that adsorption was not the only rate-limiting step. In this study, nZVI compared to Gr-nZVI and Gr demonstrated superior adsorption capacity for the heavy metal adsorption selectivity. Hence, these materials can be utilized as alternative energy-efficient adsorbents for the adsorption of metal ions from wastewater. � 2023 by the authors.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo131
dc.identifier.doi10.3390/inorganics11030131
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85151163356
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85151163356&doi=10.3390%2finorganics11030131&partnerID=40&md5=e406896dc47fc2bbe86c480c50709ca7
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/34316
dc.identifier.volume11
dc.publisherMDPIen_US
dc.relation.ispartofAll Open Access
dc.relation.ispartofGold Open Access
dc.sourceScopus
dc.sourcetitleInorganics
dc.subjectadsorption
dc.subjectenergy-efficient
dc.subjectgranitic residual soil
dc.subjectheavy metals
dc.subjectsupported nano zero-valent iron
dc.titleEffectiveness of Artificially Synthesized Granitic Residual Soil-Supported Nano Zero-Valent Iron (Gr-nZVI) as Effective Heavy Metal Contaminant Adsorbenten_US
dc.typeArticleen_US
dspace.entity.typePublication
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