Please use this identifier to cite or link to this item:
|Title: ||Production of low-cost adsorbents with tunable surface chemistry by conjunction of hydrothermal carbonization and activation processes|
|Authors: ||Roman, Silvia|
Valente Nabais, Joao
|Keywords: ||hydrothermal carbonization|
|Issue Date: ||2013|
|Citation: ||Microporous and Mesoporous Materials 165 (2013) 127–133|
|Abstract: ||We report a new methodology to produce activated carbons from biomass-derived hydrothermal carbons
using air and carbon dioxide. The activation step is crucial to develop porosity in the hydrothermal carbons.
Additionally different surface functionalities are also introduced on the surface of the final materials.
Our method based on initial hydrothermal carbonization of lignocellulosic biomass (walnut shell,
sunflower stem and olive stone) represents a more energy-efficient tactic as compared with the traditional
pyrolysis. The final yield is higher and the initial hydrothermal treatment allows a better control
over the resulting porosity. The produced activated carbons show a higher porosity development when
activated with carbon dioxide. The activation with air produced carbon materials with acidic surface
|Appears in Collections:||QUI - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica|
CQE - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.