Fast deposition of porous iron oxide on activated carbon by microwave heating and arsenic (V) removal from water

Yürüm, Alp; Kocabaş-Ataklı, Züleyha Özlem; Sezen, Meltem; Semiat, Raphael; Yürüm, Yuda

doi:10.1016/j.cej.2014.01.005

Cited by 110 publications

(21 citation statements)

References 73 publications

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“…The authors reported that more than 99.0 % of uptake was obtained within the pH range of 6-8. In this research, higher adsorption capacities compared to the research by Vitela-Rodriguez and Rangel-Mendez (2013) and Muñiz et al (2009) were obtained, probably due to the treatment technique of adsorbent which is the microwave hydrothermal (MH) technique, but another important detail is that the used initial arsenic concentrations were higher than compared to the initial concentration of 20 mg L −1 in the study by Yürüm et al (2014). Attia et al (2014) prepared magnetic nanoparticle (γ-Fe 2 O 3 )-coated zeolite (MNCZ) for arsenic ion removal from an aqueous solution.…”

Section: Iron(iii)-cerium(iv) Mixed Oxide (Nicmo)contrasting

confidence: 62%

“…The results obtained indicated that both materials are equally useful for As(V) sorption. Yürüm et al (2014) used α-Fe 2 O 3 nanoparticles deposited on activated carbon to investigate As(V) adsorption capacity. Batch adsorption experiments showed high efficiency of As(V) removal and the maximum reported adsorption capacity was 27.78 mg g −1 .…”

Section: Iron(iii)-cerium(iv) Mixed Oxide (Nicmo)mentioning

confidence: 99%

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Arsenic removal by nanoparticles: a review

Habuda-Stanić

Nujić

2015

Environ Sci Pollut Res

158

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Contamination of natural waters with arsenic, which is both toxic and carcinogenic, is widespread. Among various technologies that have been employed for arsenic removal from water, such as coagulation, filtration, membrane separation, ion exchange, etc., adsorption offers many advantages including simple and stable operation, easy handling of waste, absence of added reagents, compact facilities, and generally lower operation cost, but the need for technological innovation for water purification is gaining attention worldwide. Nanotechnology is considered to play a crucial role in providing clean and affordable water to meet human demands. This review presents an overview of nanoparticles and nanobased adsorbents and its efficiencies in arsenic removal from water. The paper highlights the application of nanomaterials and their properties, mechanisms, and advantages over conventional adsorbents for arsenic removal from contaminated water.

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Section: Iron(iii)-cerium(iv) Mixed Oxide (Nicmo)contrasting

confidence: 62%

Section: Iron(iii)-cerium(iv) Mixed Oxide (Nicmo)mentioning

confidence: 99%

Arsenic removal by nanoparticles: a review

Habuda-Stanić

Nujić

2015

Environ Sci Pollut Res

158

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“…The optimized pH range is 6.0-8.0 for As(III) and As(V) adsorption, with apparent inhibition observed in both very acidic solutions (pH 2.0-6.0) and alkaline solutions (pH 8.0-11.0). Very similar results were obtained in the study of arsenic adsorption with the adsorbents containing metal oxides (Han et al 2013;Zhang et al 2012;Yürüm et al 2014). The oxidation rate of As(III) during the adsorption under different pH was calculated based on arsenic speciation analysis.…”

Section: Impacts Of Phsupporting

confidence: 80%

As(III) Adsorption and Oxidation by Metal (Hydro) Oxides Enriched on Alligator Weed Root

Chen

Wei

Sun

2015

Water Air Soil Pollut

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The dried powder of the alligator weed root (AWR) was employed as a biosorbent to remove As(III) from aqueous solution, using acid pretreated AWR (HAWR) and As(V) as the contrasts. The results of batch adsorption experiment suggested that there is no substantial difference between As(III) and As(V) adsorption. Both of them are affected by the solution pH significantly, but insensitive to the ionic strength. The speciation analysis indicated that more than 95 % of the total As(III) in aqueous solution is oxidized into As(V) in the presence of AWR, while barely oxidized in the presence of HAWR. It proves that without pre-oxidation, AWR can oxidize and adsorb As(III), simultaneously. The properties of the biosorbent were characterized by various techniques including scanning electronic microscopy-energy dispersive spectrometer, Fourier transform infrared spectra analysis, inductive coupled plasma emission spectrometer and Zeta potential detection. The results suggested that typical metals including Mn, Fe and Al enrich in the morphology of metal (hydro) oxide over the surface of AWR, originally. Based on the nature of the biosorbent and arsenic besides the adsorption and oxidation performances, the metal (hydro) oxides are proved as the essential role to drive the adsorption and oxidation. The proof is that with the metal (hydro) oxides denuded, as the contrast of AWR, HAWR loses its capability of adsorption and oxidation for As(III), totally.

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“…Metal impregnated AC is commonly prepared by the reduction of metal salt solutions, or by direct adsorption of pre-prepared nanoparticles [66,67]. These composite materials have shown high adsorption affinities for contaminant species including heavy metals, halides and DOM.…”

Section: Chemical Modifications Of Activated Carbon For Improved Contmentioning

confidence: 99%

Activated Carbon, Carbon Nanotubes and Graphene: Materials and Composites for Advanced Water Purification

Sweetman

May²,

Mebberson³

et al. 2017

172

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Abstract:To ensure the availability of clean water for humans into the future, efficient and cost-effective water purification technology will be required. The rapidly decreasing quality of water and the growing global demand for this scarce resource has driven the pursuit of high-performance purification materials, particularly for application as point-of-use devices. This review will introduce the main types of natural and artificial contaminants that are present in water and the challenges associated with their effective removal. The efficiency and performance of recently developed materials for water purification, with a focus on activated carbon, carbon nanotubes and graphene will be discussed. The recent advances in water purification using these materials is reviewed and their applicability as point-of-use water purification systems discussed.

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Fast deposition of porous iron oxide on activated carbon by microwave heating and arsenic (V) removal from water

Cited by 110 publications

References 73 publications

Arsenic removal by nanoparticles: a review

Arsenic removal by nanoparticles: a review

As(III) Adsorption and Oxidation by Metal (Hydro) Oxides Enriched on Alligator Weed Root

Activated Carbon, Carbon Nanotubes and Graphene: Materials and Composites for Advanced Water Purification

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