Enhanced sequestration of Cr(VI) onto plant extract anchored on carbon-coated aluminium oxide composite.

James Friday Amaku, Segun A Ogundare, Kovo G Akpomie, Jeanet Conradie

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In one paragraph

Article in Environmental science and pollution research international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

1.2field-weighted citation impact, top 23% of its field

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0 citing papers in PubMed, 14 citations in OpenAlex.

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5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

James Friday AmakuDepartment of Chemistry, Michael Okpara University of Agriculture, Umudike, Nigeria. amakufj2006@gmail.com.

Segun A OgundareChemical Sciences Department, Olabisi Onabanjo University, Ago-Iwoye, P. M. B. 2002, Nigeria.

Kovo G AkpomieDepartment of Chemistry, University of the Free State, Bloemfontein, South Africa.

Jeanet ConradieDepartment of Chemistry, University of the Free State, Bloemfontein, South Africa.

University of the Free State · ZAMichael Okpara University of Agriculture · NGOlabisi Onabanjo University · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aluminium oxide (ALU) and carbon-coated aluminium oxide modified with Kigelia africana leaf extract (KECA) were employed for the removal of toxic hexavalent chromium (Cr(VI)) from the aqueous phase. The adsorbents (ALU and KECA) were characterized by TGA, BET, FESEM, FTIR, Raman and XRD spectroscopic techniques. The potential of KECA and ALU to remove Cr(VI) from simulated wastewater was optimum at pH 2, sorbent dose of 0.025 g and a contact time of 200 min. Meanwhile, the uptake capacity of KECA and ALU was enhanced with an increase in sorbent dose, contact time and initial Cr(VI) concentration. The uptake of Cr(VI) onto the adsorbents ALU and KECA was kinetically best described by the pseudo-second-order and Elovich models, respectively. Besides, the equilibrium data acquired for ALU and KECA obeyed Freundlich and Langmuir isotherm models, respectively. ALU and KECA were observed to have optimum adsorption capacity of 56.45 mg g

Indexed as

CarbonWater Pollutants, ChemicalAdsorptionAluminum OxideChromiumHydrogen-Ion ConcentrationKineticsPlant ExtractsAluminum OxideCarbonChromiumchromium hexavalent ionPlant ExtractsWater Pollutants, ChemicalAdsorptionChromium (VI)IsothermsKigelia africana leavesKineticsRegeneration

Identifiers

PMID34091835

DOI10.1007/s11356-021-14694-9

OpenAlexW3171672836

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.