Functional Activated Biocarbons Based on Biomass Waste for CO2 Capture and Heavy Metal Sorption
Serafin J. Kishibayev K. Tokpayev R. Khavaza T. Atchabarova A. Ibraimov Z. Nauryzbayev M. Nazzal J.S. Giraldo L. Moreno-Piraján J.C.
19 December 2023American Chemical Society
ACS Omega
2023#8Issue 5048191 - 48210 pp.
Inexpensive porous activated biocarbons were prepared from biomass and agriculture waste following the method of thermal and hydrothermal carbonization and activation with superheated water vapor. The activated biocarbons were characterized by nitrogen adsorption-desorption at 77 K, SEM, XRD, Raman spectrometry, FTIR spectroscopy, determination of particle size, and elemental composition by XRF. The specific surface area was in the range of 240-709 m2/g, and the total pore volume was from 0.12 to 0.43 cm3/g. The percentage of microporosity in activated biocarbons was 89-92%. These activated biocarbons have been used for CO2 and heavy metal sorption. Activated biocarbons based on pine cones and birch prepared by thermal carbonization and activation with superheated water vapor had the highest ability to capture CO2 and amounted to 6.43 and 6.00 mmol/g at 273 K, as well as 4.57 and 4.22 mmol/g at 298 K, respectively. The best activated biocarbon was characterized by unchanged stability after 30 adsorption and desorption cycles. It was proved that the adsorption of CO2 depends on narrow micropores (<1 nm). Activated biocarbons have also been analyzed as effective adsorbents for removing Cu2+, Zn2+, Fe2+, Ni2+, Co2+, and Pb2+ ions from aqueous solutions. Activated biocarbons are effective adsorbents for the removal of lead and zinc ions from aqueous solutions.
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Institute of Energy Technologies, Department of Chemical Engineering, Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Eduard Maristany 16, EEBE, Barcelona, 08019, Spain
Center of Physical-Chemical Methods of Research and Analysis, Al Farabi Kazakh National University, 96 A, Tole bi Street, Almaty, 050012, Kazakhstan
Faculty of Chemical Technology and Engineering, Department of Catalytic and Sorbent Materials Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, Szczecin, 71-065, Poland
Facultad de Ciencias, Departamento de Quimica, Grupo de Calorimetria Universidad Nacional de Colombia, Sede, Bogota, 111321, Colombia
Facultad de Ciencias, Departamento de Quimica, Grupo de Investigación de Sólidos Porosos y Calorimetría, Universidad de los Andes, Bogotá, 111711, Colombia
Institute of Energy Technologies
Center of Physical-Chemical Methods of Research and Analysis
Faculty of Chemical Technology and Engineering
Facultad de Ciencias
Facultad de Ciencias
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