期刊
ENVIRONMENTAL POLLUTION
卷 179, 期 -, 页码 146-152出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2013.04.030
关键词
Biochar; Simulated degradation; Surface properties; Environmental implications
资金
- Natural Science Foundation of China [40771090, 40471064]
A simulated oxidation technique was used to examine the impacts of degradation on the surface properties of biochar and the potential implications of the changes in biochar properties were discussed. To simulate the short- and long-term environmental degradation, mild and harsh degradation were employed. Results showed that after mild degradation, the biochar samples showed significant reductions in surface area and pore volumes. After harsh degradation, the biochar samples revealed dramatic variations in their surface chemistry, surface area, pore volumes, morphology and adsorption properties. The results clearly indicate that changes of biochar surface properties were affected by biochar types and oxidative conditions. It is suggested that biochar surface properties are likely to be gradually altered during environmental exposure. This implies that these changes have potential effects for altering the physicochemical properties of biochar amended soils. (C) 2013 Elsevier Ltd. All rights reserved.
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