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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Activated carbon production from industrial yeast residue to boost up circular bioeconomy

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Modesto, Helen R. [1] ; Lemos, Sherlan G. [2] ; dos Santos, Mikaela S. [1] ; Komatsu, Jenny S. [3] ; Goncalves, Maraisa [4] ; Carvalho, Wagner A. [3] ; Carrilho, Elma N. V. M. [5] ; Labuto, Georgia [1]
Total Authors: 8
[1] Univ Fed Sao Paulo, Dept Chem, BR-09913030 Diadema, SP - Brazil
[2] Univ Fed Paraiba, Dept Chem, BR-58051970 Joao Pessoa, Paraiba - Brazil
[3] Univ Fed ABC, Ctr Nat & Human Sci, BR-09210580 Santo Andre, SP - Brazil
[4] Univ Fed Sao Paulo, Inst Sci & Technol, BR-12231280 Sao Jose Dos Campos - Brazil
[5] Univ Fed Sao Carlos, Dept Nat Sci Math & Educ, BR-13604900 Araras, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Environmental Science and Pollution Research; v. 28, n. 19, SI AUG 2020.
Web of Science Citations: 1

This work aims to obtain activated carbon (AC) from yeast residue to boost up bioeconomy. In this way, carbon was prepared from yeast biomass produced by the ethanol industry and after beta-glucan extraction. Carbon was activated with CO2, water vapor, and a combination of both using an experimental design. The best conditions to produce AC were activation with CO(2)for 30 min at 850 degrees C and CO(2)flow of 0.09 L/min, set by experimental design and desirability function to optimize the yield, surface area, and microporosity. Thus, for physical activation with water vapor employing the optimized conditions, it was possible to achieve a yield of 56.6% (m/m) for AC with 1144 m(2)/g of surface area and mean micropore volume of 0.53 cm(3)/g. The maximum AC surface area reached 1616 +/- 567 m(2)/g with a yield of 21 +/- 1%. The prepared ACs were characterized by elemental analysis, X-ray diffractometry, infrared spectroscopy, thermogravimetry analysis, pH(PZC), and potentiometric titration to determine the main functional groups of sorption sites. The carbon obtained from the desirability condition was used to remove dipyrone from synthetic aqueous effluent with an experimental sorption capacity of 88 +/- 4 mg/g, being the phenomenon described by the Freundlich isotherm model. (AU)

FAPESP's process: 16/06271-4 - Development of adsorbents from yeast biomass residue from industrial fermentation processes to remove emerging contaminants from water and effluents
Grantee:Geórgia Christina Labuto Araújo
Support type: Regular Research Grants
FAPESP's process: 17/13074-3 - Production and characterization of activated carbon obtained from yeast biomass residue of alcohol industry
Grantee:Mikaela Silva dos Santos
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 17/24931-4 - Polyols conversion promoted by alternative catalysts under conventional and microwave heating
Grantee:Wagner Alves Carvalho
Support type: Regular Research Grants