Advanced Cr(VI) sorption properties of activated carbon produced via pyrolysis of the “Posidonia oceanica” seagrass

Asimakopoulos, Georgios; Baikousi, Maria; Salmas, Constantinos E.; Bourlinos, Athanasios B.; Zbořil, Radek; Karakassides, Michael A.

doi:10.1016/j.jhazmat.2020.124274

Cited by 58 publications

(26 citation statements)

References 65 publications

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“…Moreover, DTA curves of both atmospheres show an exothermic reaction that represents the thermal decomposition of the walnut-shell. 49,50 As mentioned exothermic peaks, burning the precursor produces, conrm CO 2 production, indicating that walnut-shell combustion takes place in both atmospheres. This implies there is enough oxygen in the walnut-shell components for the combustion process to take place.…”

Section: O 2 /N 2 Adsorption-desorption Measurementmentioning

confidence: 90%

Biomass derived hierarchical porous carbon for high-performance O₂/N₂ adsorption; a new green self-activation approach

et al. 2021

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Section: O 2 /N 2 Adsorption-desorption Measurementmentioning

confidence: 90%

Biomass derived hierarchical porous carbon for high-performance O₂/N₂ adsorption; a new green self-activation approach

et al. 2021

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“…Looking at Table 4 it is possible to note the mains difference regarding their characteristic S BET and C% which are higher in activated carbon than in biochar, while Ash content and N% are lower. V mi (cm 3 /g) 0.086-0.582 [151] 0.16-0.335 [154] V me (cm 3 /g) 0.13-0.30 [155] 0.004-0.21 [154] V T (cm 3 /g) 0.66-0.931 [150,156] 0.01-0.88 [154] Λ particle (g/mL) 0.86-087 [45] 0.14-0.65 [157] λ ap (g/mL) 0.25-1.0 [158,159] 1. 25 The following section described the theory of the textural properties and the elemental analyses.…”

Section: Characterization Of Carbon-based Adsorbentsmentioning

confidence: 99%

A Review on the Removal of Carbamazepine from Aqueous Solution by Using Activated Carbon and Biochar

et al. 2021

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Carbamazepine (CBZ), one of the most used pharmaceuticals worldwide and a Contaminant of Emerging Concern, represents a potential risk for the environment and human health. Wastewater treatment plants (WWTPs) are a significant source of CBZ to the environment, polluting the whole water cycle. In this review, the CBZ presence and fate in the urban water cycle are addressed, with a focus on adsorption as a possible solution for its removal. Specifically, the scientific literature on CBZ removal by activated carbon and its possible substitute Biochar, is comprehensively scanned and summed up, in view of increasing the circularity in water treatments. CBZ adsorption onto activated carbon and biochar is analyzed considering several aspects, such as physicochemical characteristics of the adsorbents, operational conditions of the adsorption processes and adsorption kinetics and isotherms models. WWTPs usually show almost no removal of CBZ (even negative), whereas removal is witnessed in drinking water treatment plants through advanced treatments (even >90%). Among these, adsorption is considered one of the preferable methods, being economical and easier to operate. Adsorption capacity of CBZ is influenced by the characteristics of the adsorbent precursors, pyrolysis temperature and modification or activation processes. Among operational conditions, pH shows low influence on the process, as CBZ has no charge in most pH ranges. Differently, increasing temperature and rotational speed favor the adsorption of CBZ. The presence of other micro-contaminants and organic matter decreases the CBZ adsorption due to competition effects. These results, however, concern mainly laboratory-scale studies, hence, full-scale investigations are recommended to take into account the complexity of the real conditions.

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“…PerkinElmer Spectrum One FT-IR spectrometer (Waltham, MA, USA) equipped with a universal attenuation total reflectance sampling accessory with a spectral range between 1,800 and 650 cm À1 was used for adsorbent characterization. A Perkin Elmer Lambda 35 UV-Vis Systems spectrophotometer, having a range of 190-1,000 nm, was utilized to survey the equilibrium concentration of zinc at 300 nm after adsorption (Masoudian et al 2019;Thompson et al 2020;Asimakopoulos et al 2021).…”

Section: Adsorbent Characterizationmentioning

confidence: 99%

Zinc adsorption from aqueous solution using lemon, orange, watermelon, melon, pineapple, and banana rinds

Yılmaz

Tuğrul

2021

Water Practice and Technology

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In this study, six fruit rind, chemical activated using ZnCl2 and carbonized by microwave, were used as biosorbent to remove zinc from aqueous solution. Fruit kind, microwave treatment time and adsorption contact time effects on zinc biosorption yield were examined. The characterization of raw materials and synthesized biosorbents were realized by Fourier-transform infrared spectroscopy (FT-IR). The dried fruits rinds were activated for 2 or 4 h using ZnCl2 and carbonized for 1, 2, 3 or 4 min at 800 W microwave power. Zinc biosorption yield was determined using ultraviolet-visible spectroscopy (UV-Vis). Maximum zinc biosorption capability was determined 39.18 mg/g for lemon, 35.78 mg/g for orange, 14.76 mg/g for watermelon, 13.06 mg/g for melon, 12.2 mg/g for pineapple and 9 mg/g for banana rinds. The results indicate that the six fruits rinds can be used for zinc adsorption from aqueous solution as cost-effective and environmentally friendly biosorbent with high adsorption efficiency.

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Advanced Cr(VI) sorption properties of activated carbon produced via pyrolysis of the “Posidonia oceanica” seagrass

Cited by 58 publications

References 65 publications

Biomass derived hierarchical porous carbon for high-performance O₂/N₂ adsorption; a new green self-activation approach

Biomass derived hierarchical porous carbon for high-performance O₂/N₂ adsorption; a new green self-activation approach

A Review on the Removal of Carbamazepine from Aqueous Solution by Using Activated Carbon and Biochar

Zinc adsorption from aqueous solution using lemon, orange, watermelon, melon, pineapple, and banana rinds

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Advanced Cr(VI) sorption properties of activated carbon produced via pyrolysis of the “Posidonia oceanica” seagrass

Cited by 58 publications

References 65 publications

Biomass derived hierarchical porous carbon for high-performance O2/N2 adsorption; a new green self-activation approach

Biomass derived hierarchical porous carbon for high-performance O2/N2 adsorption; a new green self-activation approach

A Review on the Removal of Carbamazepine from Aqueous Solution by Using Activated Carbon and Biochar

Zinc adsorption from aqueous solution using lemon, orange, watermelon, melon, pineapple, and banana rinds

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Product

Resources

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Biomass derived hierarchical porous carbon for high-performance O₂/N₂ adsorption; a new green self-activation approach

Biomass derived hierarchical porous carbon for high-performance O₂/N₂ adsorption; a new green self-activation approach