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Assessment of green tea-enabled iron/calcined bentonite nanocomposites for phosphate removal and recovery

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dc.contributor.authorERKEN, ESRA
dc.contributor.authorsHür C., ERKEN E.
dc.date.accessioned2022-10-21T06:58:56Z
dc.date.available2022-10-21T06:58:56Z
dc.date.issued2022-10-01
dc.description.abstract© 2022 Elsevier Ltd.We suggest using green tea enabled iron nanoparticles supported on calcined bentonite (G-nZVI/B) to remove and recover phosphate from synthetic wastewater. The nanocomposites are proposed as an eco-innovative adsorbent material for wastewater treatment plants. Adsorption columns packed with this novel nanocomposite would help overcome the footprint obstacle of wastewater treatment plants in a cost-effective way. We assessed the effect of various iron (Fe) /calcined bentonite (Cal-B) mass ratios (2 g Cal-B/2 g Fe, 2 g Fe, 2 g Cal-B/0.56 g Fe) and Fe/Green tea extract (GT) volumetric ratios (1/1, 1/0.5, 1/0.1) in 9 different nanocomposites (G-nZVI/B). The nanocomposites were characterized using BET, SEM, TEM, FT-IR, XRD, and XPS. The recipe for the optimized nanocomposite composition was found as follows: NC2 (Fe: 2 g, Calcined bentonite: 2 g, Fe/Green tea extract: (1/0.5) (V/V)). TEM analysis demonstrated that size of the iron nanoparticles (INPs) was within the range of 8-30 nm for NC2. Adsorption isotherms and kinetic models were carried out with the optimized nanocomposite under the following conditions: Room temperature; adsorbent dosage = 5 g/L; initial phosphate concentration: 10-900 mg/L, and contact time = 5-1500 min. The results revealed that the maximum adsorption capacity was 58.60 mg/g using Sips model (R2 = 0.959), and the adsorption rate constant was 23.017 mg/(g.min) using Elovich model (R2 = 0.971). Chemisorption was suggested to be the major mechanism of phosphate removal from an aqueous solution. The adsorption and recovery efficiencies were determined to be 98.60% and 53.48% using 1 g of NC2 with 50 mg/L initial phosphate concentration.
dc.identifier.citationHür C., ERKEN E., "Assessment of green tea-enabled iron/calcined bentonite nanocomposites for phosphate removal and recovery", Journal of Environmental Chemical Engineering, cilt.10, sa.5, 2022
dc.identifier.doi10.1016/j.jece.2022.108519
dc.identifier.issn2213-3437
dc.identifier.issue5
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85137546477&origin=inward
dc.identifier.urihttps://hdl.handle.net/11424/282475
dc.identifier.volume10
dc.language.isoeng
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectKimya Mühendisliği ve Teknolojisi
dc.subjectKimya
dc.subjectDiğer
dc.subjectTemel Bilimler
dc.subjectMühendislik ve Teknoloji
dc.subjectChemical Engineering and Technology
dc.subjectChemistry
dc.subjectOther
dc.subjectNatural Sciences
dc.subjectEngineering and Technology
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectTemel Bilimler (SCI)
dc.subjectMühendislik
dc.subjectMÜHENDİSLİK, ÇEVRE
dc.subjectMÜHENDİSLİK, KİMYASAL
dc.subjectKİMYA, UYGULAMALI
dc.subjectEngineering, Computing & Technology (ENG)
dc.subjectNatural Sciences (SCI)
dc.subjectENGINEERING
dc.subjectCHEMISTRY
dc.subjectENGINEERING, ENVIRONMENTAL
dc.subjectENGINEERING, CHEMICAL
dc.subjectCHEMISTRY, APPLIED
dc.subjectKimya Mühendisliği (çeşitli)
dc.subjectFizik Bilimleri
dc.subjectAtık Yönetimi ve Bertarafı
dc.subjectKirlilik
dc.subjectProses Kimyası ve Teknolojisi
dc.subjectChemical Engineering (miscellaneous)
dc.subjectPhysical Sciences
dc.subjectWaste Management and Disposal
dc.subjectPollution
dc.subjectProcess Chemistry and Technology
dc.subjectAbbreviations GT Green tea
dc.subjectBET Brunauer-Emmett-Teller
dc.subjectBJH Barrett, Joyner and Halenda
dc.subjectCal-B Calcined bentonite
dc.subjectDH Dollimore and Heal
dc.subjectEDS X-ray spectroscopy
dc.subjectFT-IR Fourier transform infrared
dc.subjectG-nZVI/B Green synthesized iron nanoparticles supported on calcined bentonite
dc.subjectH-J Harkins-Jura
dc.subjectINPs Iron nanoparticles
dc.subjectNRMSE Normalized root mean square error
dc.subjectnZVI Nanoscale zero-valent iron
dc.subjectPFO Pseudo-first order
dc.subjectPSO Pseudo-second order
dc.subjectR-D Radushkevich-Dubinin
dc.subjectRaw-B Raw bentonite
dc.subjectSEM Scanning electron microscopy
dc.subjectTEM Transmission electron microscopy
dc.subjectXPS X-ray photoelectron spectroscopy
dc.subjectXRD X-ray diffraction
dc.titleAssessment of green tea-enabled iron/calcined bentonite nanocomposites for phosphate removal and recovery
dc.typearticle
dspace.entity.typePublication
local.avesis.idcc78f076-5273-4ede-a880-e2b588bcd549
local.indexed.atSCOPUS
relation.isAuthorOfPublication3192cfff-b495-4ffc-b4b1-98efaeec8b99
relation.isAuthorOfPublication.latestForDiscovery3192cfff-b495-4ffc-b4b1-98efaeec8b99

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