Article
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Synthesis and Characterization of Biochars and Activated Carbons Derived from Various Biomass for CO2 Adsorption
Version 1
: Received: 30 April 2024 / Approved: 30 April 2024 / Online: 30 April 2024 (10:03:54 CEST)
A peer-reviewed article of this Preprint also exists.
Hoang, T.-D.; Liu, Y.; Le, M.T. Synthesis and Characterization of Biochars and Activated Carbons Derived from Various Biomasses. Sustainability 2024, 16, 5495. Hoang, T.-D.; Liu, Y.; Le, M.T. Synthesis and Characterization of Biochars and Activated Carbons Derived from Various Biomasses. Sustainability 2024, 16, 5495.
Abstract
Reducing CO2 emissions is urgently needed to slow down the impacts of climate change. CO2 capture using an amine solution has been developed and implemented on pilot and commercial scales. However, amine scrubbing, in particular, produces a lot of degraded solvent as waste and is energy intensive. Solid sorbents have been called to overcome those drawbacks. In this work, waste biomass-derived carbon materials were developed and tested for CO2 capture and conversion. Advanced thermal chemical processes i.e. hydrothermal and pyrolysis were applied to produce materials from agri-food waste such as soybean and okara. It was found that the number of functional groups (-C=O and -OH) in activated carbon appears in the synthesized materials, implying the generation of surface oxygenated groups. Preliminary results showed that the synthesized activated carbons are obtained with good yields, and a relatively high surface area, which may be applied as CO2 adsorption materials to solve the CO2 emission problems.
Keywords
biomass; okara powder waste; pyrolysis; hydrothermal carbonization, activated carbon; catalysis; adsorption; CO2 capture
Subject
Chemistry and Materials Science, Biomaterials
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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