Adsorption on activated carbons from end-of-life tyre pyrolysis for environmental applications. Part II. Adsorption from aqueous phase

Kuśmierek, Krzysztof; Świątkowski, Andrzej; Kotkowski, Tomasz; Cherbański, Robert; Molga, Eugeniusz

doi:10.1016/j.jaap.2021.105206

Cited by 23 publications

(6 citation statements)

References 87 publications

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“…Kinetics investigations are critical for study of adsorption processes because they contribute to evaluating the rate and the mechanism of adsorption. The most frequent kinetic models used are pseudo-first-order (PFO) and pseudo-second-order (PSO) models [57]. The pseudo-first-order kinetic model is given as follows (Equation ( 7)):…”

Section: Adsorption Kineticsmentioning

confidence: 99%

“…The determination of the isotherms of the adsorption process was very important for the identification of the interaction between the PCT and CPL molecules and the ACs. Various models have been used in the literature [57], such as the Langmuir [59] and Freundlich [60] models. The main hypothesis of the Langmuir isotherm model assumes monolayer adsorption on a homogeneous adsorbent surface and a lack of interaction between the adsorbate molecules on the surface of the adsorbent.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

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Optimization of Paracetamol and Chloramphenicol Removal by Novel Activated Carbon Derived from Sawdust Using Response Surface Methodology

et al. 2023

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Paracetamol (PCT) and chloramphenicol (CPL) can have unfavorable impacts on human health, as well as on natural ecosystems. These substances contribute to the aquatic environment’s contamination and disturb the performance of municipal wastewater treatment systems, causing ecosystem disruption and microbial resistance. In this study, activated carbon produced from sawdust (ACs) was synthesized utilizing the chemical activation process for the removal of both PCT and CPL compounds from an aqueous solution. ACs has a primarily microporous structure with a significant specific surface area of 303–1298 m2/g, total pore volume of 0.462 cm3/g and bimodal distribution of pores of 0.73–1.7 nm. The removal efficiencies for PCT and CPL with the low-cost activated carbon, determined at the optimum dose (750 mg/L for PCT and 450 mg/L for CPL), were significantly high at 85% and 98%, respectively. The adsorption kinetics for both pharmaceuticals exhibited a quick initial decline. For PCT and CPL adsorption, the equilibrium was attained after just 20 and 90 min, respectively. The Langmuir isotherm model and the pseudo-second-order kinetics model offered the best fits for the adsorption of both compounds. Additionally, the central composite design (CCD) and Box–Behnken design (BBD) were used to optimize the experimental adsorption conditions using a response surface methodology (RSM). On the basis of the findings, it is evident that activated carbon made from sawdust may be used as a new, effective alternative adsorbent for removing PCT and CPL in aqueous environments.

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Section: Adsorption Kineticsmentioning

confidence: 99%

Section: Adsorption Isothermsmentioning

confidence: 99%

Optimization of Paracetamol and Chloramphenicol Removal by Novel Activated Carbon Derived from Sawdust Using Response Surface Methodology

et al. 2023

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“…Moreover, after further processing [ 68 , 69 ], these activated carbon materials can be employed in a large variety of fields, as depicted in Figure 4 . In recent studies, activated rCB samples were investigated as adsorbents for the separation of compounds in gaseous [ 70 , 71 , 72 ] and liquid [ 73 ] phases (e.g., adsorption of dyes [ 74 , 75 ], organic compounds [ 76 , 77 , 78 , 79 ], and heavy metals [ 80 , 81 , 82 ]), as conductive additives for carbon electrodes of sodium and lithium batteries [ 83 , 84 , 85 , 86 ], as supercapacitors [ 87 ], as catalysts [ 88 , 89 ] and as nanomaterial precursors [ 90 , 91 ]. Even though rCB has been identified as a potential solid fuel (the HHV is within 25 to 34 MJ/kg [ 9 , 21 ]), its low reactivity, slow oxidation kinetics, small particle size, and low bulk density explain why rCB combustion studies are rarely found.…”

Section: Recovered Carbon Blackmentioning

confidence: 99%

Production and Upgrading of Recovered Carbon Black from the Pyrolysis of End-of-Life Tires

Costa

Fowler²,

Carreira³

et al. 2022

Materials

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Increasing awareness regarding fossil fuel dependence, waste valorization, and greenhouse gas emissions have prompted the emergence of new solutions for numerous markets over the last decades. The tire industry is no exception to this, with a global production of more than 1.5 billion tires per year raising environmental concerns about their end-of-life recycling or disposal. Pyrolysis enables the recovery of both energy and material from end-of-life tires, yielding valuable gas, liquid, and solid fractions. The latter, known as recovered carbon black (rCB), has been extensively researched in the last few years to ensure its quality for market applications. These studies have shown that rCB quality depends on the feedstock composition and pyrolysis conditions such as type of reactor, temperature range, heating rate, and residence time. Recent developments of activation and demineralization techniques target the production of rCB with specific chemical, physical, and morphological properties for singular applications. The automotive industry, which is the highest consumer of carbon black, has set specific targets to incorporate recycled materials (such as rCB) following the principles of sustainability and a circular economy. This review summarizes the pyrolysis of end-of-life tires for the production of syngas, oil, and rCB, focusing on the process conditions and product yield and composition. A further analysis of the characteristics of the solid material is performed, including their influence on the rCB application as a substitute of commercial CB in the tire industry. Purification and modification post-treatment processes for rCB upgrading are also inspected.

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“…Common research on the tire-derived char has been its direct use or its use as a precursor of high-value activated carbons (Saleh and Gupta 2014 ; Jones et al 2021 ), which opens the window for a wide range of applications in different industries. Among the different applications of the tire rubber-derived carbons, their unique properties have made them highly efficient as adsorbents of a wide range of compounds (Kuśmierek et al 2021b , a ).…”

Section: Introductionmentioning

confidence: 99%

Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

Bernardo

Lapa

Pinto

et al. 2023

Environ Sci Pollut Res

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Spent tire rubber-derived chars and their corresponding H3PO4 and CO2-activated chars were used as adsorbents in the recovery of Pb(II) ion and (W(VI)) oxyanion from synthetic solutions. The developed chars (both raw and activated) were thoroughly characterized to have insight about their textural and surface chemistry properties. H3PO4-activated chars presented lower surface areas than the raw chars and an acidic surface chemistry which affected the performance of these samples as they showed the lowest removals of the metallic ions. On the other hand, CO2-activated chars presented increased surface areas and increased mineral content compared to the raw chars, having presented higher uptake capacities for both Pb(II) (103–116 mg/g) and W(VI) (27–31 mg/g) ions. Cation exchange with Ca, Mg and Zn ions was appointed as a mechanism for Pb removal, as well as surface precipitation in the form of hydrocerussite (Pb3(CO3)2(OH)2). W(VI) adsorption might have been ruled by strong electrostatic attractions between the negatively charged tungstate species and the highly positively charged carbons’ surface.The results shown in this work allow concluding that the valorisation of spent tire rubber through pyrolysis and the subsequent activation of the obtained chars is an alternative and a feasible option to generate adsorbent materials with a high uptake capacity of critical metallic elements.

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Adsorption on activated carbons from end-of-life tyre pyrolysis for environmental applications. Part II. Adsorption from aqueous phase

Cited by 23 publications

References 87 publications

Optimization of Paracetamol and Chloramphenicol Removal by Novel Activated Carbon Derived from Sawdust Using Response Surface Methodology

Optimization of Paracetamol and Chloramphenicol Removal by Novel Activated Carbon Derived from Sawdust Using Response Surface Methodology

Production and Upgrading of Recovered Carbon Black from the Pyrolysis of End-of-Life Tires

Valorisation of spent tire rubber as carbon adsorbents for Pb(II) and W(VI) in the framework of a Circular Economy

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