Activated carbon obtained from amazonian biomass tailings (acai seed): Modification, characterization, and use for removal of metal ions from water

Queiroz, Leandro S.; Souza, Luiz K.C. de; Thomaz, Kelly Taise C.; Lima, Érika Tallyta Leite; Filho, Geraldo Narciso da Rocha; Nascimento, Luís Adriano Santos do; Pires, Luíza Helena de Oliveira; Faial, Kelson do Carmo Freitas; Costa, Carlos Emmerson Ferreira da

doi:10.1016/j.jenvman.2020.110868

Cited by 123 publications

(51 citation statements)

References 47 publications

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“…4 b shows that while the interaction of A with the AC source, B seems to be irrelevant for the CR% result, the interaction of A with the particle size distribution defined by C, seems to have a moderate effect. This observation supports the inter-particle contact and derived electric conductivity effect that has been previously suggested for C and that should depend up to a certain point on A, since the pre-treatment oxidation process influences the hydrophilicity as well as the chemical composition of the surface of the AC material [ 27 , [55] , [56] , [57] , [58] ].…”

Section: Resultssupporting

confidence: 88%

Study of polarized activated carbon filters as simultaneous adsorbent and 3D-type electrode materials for electro-Fenton reactors

Robles

Moreno-Rubio

García‐Espinoza

et al. 2020

Journal of Environmental Chemical Engineering

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Section: Resultssupporting

confidence: 88%

Study of polarized activated carbon filters as simultaneous adsorbent and 3D-type electrode materials for electro-Fenton reactors

Robles

Moreno-Rubio

García‐Espinoza

et al. 2020

Journal of Environmental Chemical Engineering

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“…Biomass is a complex, abundant, heterogeneous, biodegradable and bio-organic substance that may be obtained from diverse sources such as perennial grass, organic domestic garbage, residues of agriculture, fishery, poultry, animal husbandry, forestry and related industries [ 46 , 47 , 48 ] ( Figure 2 ). Biomass waste is a natural organic carbon source, mainly composed of cellulose, hemicellulose, lignin, ash, proteins and some other ingredients.…”

Section: Synthesis Of C-dots From Biomass Wastesmentioning

confidence: 99%

A Review of Carbon Dots Produced from Biomass Wastes

et al. 2020

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The fluorescent carbon dot is a novel type of carbon nanomaterial. In comparison with semiconductor quantum dots and fluorescence organic agents, it possesses significant advantages such as excellent photostability and biocompatibility, low cytotoxicity and easy surface functionalization, which endow it a wide application prospect in fields of bioimaging, chemical sensing, environmental monitoring, disease diagnosis and photocatalysis as well. Biomass waste is a good choice for the production of carbon dots owing to its abundance, wide availability, eco-friendly nature and a source of low cost renewable raw materials such as cellulose, hemicellulose, lignin, carbohydrates and proteins, etc. This paper reviews the main sources of biomass waste, the feasibility and superiority of adopting biomass waste as a carbon source for the synthesis of carbon dots, the synthetic approaches of carbon dots from biomass waste and their applications. The advantages and deficiencies of carbon dots from biomass waste and the major influencing factors on their photoluminescence characteristics are summarized and discussed. The challenges and perspectives in the synthesis of carbon dots from biomass wastes are also briefly outlined.

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“…RT K  = − ln o (11) ln where R is the universal gas constant (8.314 J mol −1 K −1 ), T is the temperature (K), and K o is the equilibrium constant and can be calculated using following equation 41…”

Section: ∆Gmentioning

confidence: 99%

“…Recently, the preparation of AC with the desired chemical and physical properties from agricultural waste has gained significant interest 8 and can be applied as adsorbents in many purification processes such as wastewater treatment, 9 gas cleaning, 10 and metal removal. 11 The properties of AC not only depend on the source precursors but also depend on the activation methods. Generally, chemical activation is more applicable compared to physical activation due to the lower temperature of the process, the higher production yields, and the easier control of AC pore size distribution.…”

Section: Introductionmentioning

confidence: 99%

Activated carbons from coffee husk: Preparation, characterization, and reactive red 195 adsorption

Thi

Ван

2020

Journal of Chemical Research

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Activated carbons are prepared from coffee husks by chemical activation with ZnCl2 and are characterized by employing Brunauer, Emmett and Teller, scanning electron microscopy, Fourier-transform infrared spectroscopy, and Boehm titrations. The effects of ZnCl2/coffee husks, activation temperature, and activation time are studied, and the results show that the sample ACZ3-600-2 has a high surface area of 1383 m2 g−1, a high pore volume of 1.6482 cm3 g−1, and numerous surface functional groups. The adsorption of reactive red 195 onto the prepared coffee husk activated carbon can be well-described by the pseudo-second-order kinetic model and is found to be controlled by film diffusion followed by intra-particle diffusion. The adsorption isotherm data obtained at 10–40 °C are analyzed and found to follow the Sips model at lower temperatures (10 and 20 °C) and the Redlich–Peterson model at higher temperatures (30 and 40 °C). The obtained thermodynamic parameters (Δ G° < 0, Δ H° = 33.487 kJ mol−1, and Δ S° = 202.30 J K−1 mol−1) suggest that the adsorption of reactive red 195 onto the prepared activated carbon is spontaneous, endothermic, and demonstrates an increasing of randomness at the adsorbate–adsorbent interface. The investigated results show that coffee husk activated carbon is an efficient adsorbent for the removal of reactive red 195 from aqueous solutions.

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Activated carbon obtained from amazonian biomass tailings (acai seed): Modification, characterization, and use for removal of metal ions from water

Cited by 123 publications

References 47 publications

Study of polarized activated carbon filters as simultaneous adsorbent and 3D-type electrode materials for electro-Fenton reactors

Study of polarized activated carbon filters as simultaneous adsorbent and 3D-type electrode materials for electro-Fenton reactors

A Review of Carbon Dots Produced from Biomass Wastes

Activated carbons from coffee husk: Preparation, characterization, and reactive red 195 adsorption

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