Study of the adsorption and electroadsorption process of Cu (II) ions within thermally and chemically modified activated carbon

Macı́as-Garcı́a, A.; Corzo, M.Gómez; Domínguez, Montserrat; Alexandre-Franco, María; Naharro, J. Martínez

doi:10.1016/j.jhazmat.2016.11.036

Cited by 112 publications

(38 citation statements)

References 63 publications

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“…Adsorption is considered an efficient technology for the removal of organic and inorganic compounds from water due to its low cost, easy operation and production of high‐quality treated effluents without the generation of dangerous products . Conventional adsorption processes use commercial activated carbon due to its excellent adsorption capacities . However, the expensive and complex production of commercial activated carbon limits its wide application …”

Section: Introductionmentioning

confidence: 99%

“…11 Conventional adsorption processes use commercial activated carbon due to its excellent adsorption capacities. 12 However, the expensive and complex production of commercial activated carbon limits its wide application. 13 As a consequence, there are several works about the development and application of new materials for the removal of pharmaceuticals from water, including various biomass residues such as agricultural, industrial and municipal waste.…”

Section: Introductionmentioning

confidence: 99%

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Acetaminophen adsorption using a low‐cost adsorbent prepared from modified residues of Moringa oleifera Lam. seed husks

Quesada

Cusioli

Bezerra

et al. 2019

J of Chemical Tech & Biotech

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Background The high consumption of acetaminophen leads to high concentrations in surface water causing impacts on aquatic organisms, which is highlighting the need for investigation of alternative water and wastewater treatments. Therefore, the present study objective was to evaluate the adsorption capacity of acetaminophen onto Moringa oleifera Lam. seed husks after chemical and thermal treatment. Results The characterization of the adsorbent revelaed heterogeneous morphology with the presence of micro‐ and mesopores. Adsorption studies showed that the adsorption did not altered between pH 3 and 9, and that there was no significant effect of the ionic strength, indicating that the mechanism does not involve electrostatic interactions. In fact, Fourier transform infrard spectra showed that acetaminophen was adsorbed by hydrogen bonds and π‐stacking. The kinetic data were adjusted to the pseudo‐first‐order model, indicating an equilibrium time of 18 h. The equilibrium study showed that adsorption occurred in a monolayer and was favoured by the increase in temperature. The maximum adsorption capacity was 17.48 mg g−1, at 318 K, higher than some capacities found in the literature. The thermodynamic parameters indicated that the process was spontaneous, endothermic and physical. Conclusions The characteristics and results found compared to the recent literature verified the possibility of applying this residue as a low‐cost adsorbent for the removal of acetaminophen. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acetaminophen adsorption using a low‐cost adsorbent prepared from modified residues of Moringa oleifera Lam. seed husks

Quesada

Cusioli

Bezerra

et al. 2019

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

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“…[8][9][10][11][12] Conventional adsorption processes use activated carbon due to its high pollutant removal. 13 However, the expensive production of this adsorbent limits its application. 14 Thus, there are several studies which investigated the application of new adsorbent materials such as biomass residues generated from the agro-industry, [15][16][17][18] and even from domestic activities.…”

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confidence: 99%

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Cusioli

Quesada

Baptista

et al. 2019

Env Prog and Sustain Energy

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Methylene blue is a cationic dye used for dyeing cotton, wool, and silk. This dye can cause impacts when reaching water resources due to the reduction of sunlight infiltration, besides the health problems if ingested. Therefore, the complete removal of this contaminant in industrial effluents is indispensable. Currently, soybean hulls residues are used in animal feed supplementation; however, since soybean oil production is large, expressive quantities is discarded in landfills. Thus, the present study aim is to evaluate the adsorption capacity of methylene blue onto soybean hulls as an alternative use of this agroindustrial residue. The material was characterized through morphological and chemical analysis which showed porosity, heterogeneity, and functional groups that favor the adsorption. Due to the mainly negative charge of the surface, the pH did not affect the cationic dye uptake, enabling a wide pH range. After the adsorption studies, the best experimental conditions were at temperatures of 298 K, mass of 0.025 g, and contact time of 180 min, resulting in the maximum adsorption capacity of 169.90 mg g−1. When compared with other low‐cost biosorbent and activated carbons, it can be perceived a potential applicability of soybean hulls in wastewater treatment as an alternative use.

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“…At present, the purification of low-concentration Cu(II) is facing a series of problems such as difficult removal, high energy consumption, etc [1,2]. Adsorption method is considered to be the most promising and practical technology in the field of low-concentration Cu(II) purification [3,4]. As a new generation of adsorbent materials, activated carbon fibers (ACFs) have a strong adsorptivity for low concentration adsorbates due to the direct distribution of a large number of microporous structures and surface polar groups on the surface of fibers [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Application of sonication in improving the Cu(II) adsorptivity and recycling performanc of activated carbon fibers

Zhu

et al. 2020

Mater. Res. Express

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In order to enhance the adsorptivity of viscose-based activated carbon fibers (VACFs) for lowconcentration Cu(II), sonication-assisted zinc chloride reactivation process and sonication-assistedpickling regeneration process were studied in this research. This study aims to prepare a modified VACFs with high Cu(II) adsorptivity and recycling performance at the same time. As 10 wt% ZnCl 2 used as activator, specific surface area, micropore volume and mesopore volume of VACFs increase by 59.33%, 37.35% and 813.87% respectively, besides, the Cu(II) adsorptivity was improved by 2.04 times through the reactivation process. Based on the sonication-assisted-pickling regeneration process, the regeneration rate was changed from 96.85% to 107.81% during 1-5 recycling times.

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Study of the adsorption and electroadsorption process of Cu (II) ions within thermally and chemically modified activated carbon

Cited by 112 publications

References 63 publications

Acetaminophen adsorption using a low‐cost adsorbent prepared from modified residues of Moringa oleifera Lam. seed husks

Acetaminophen adsorption using a low‐cost adsorbent prepared from modified residues of Moringa oleifera Lam. seed husks

Soybean hulls as a low‐cost biosorbent for removal of methylene blue contaminant

Application of sonication in improving the Cu(II) adsorptivity and recycling performanc of activated carbon fibers

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