Journal
BIORESOURCE TECHNOLOGY
Volume 259, Issue -, Pages 24-31Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.03.013
Keywords
Biochar; Tetracycline; Adsorption; Kinetic; Isotherm
Funding
- Texas A&M University Chancellor Research Initiative Fund
- US-DOE Office of Energy Efficiency and Renewable Energy [DE-EE0006639]
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The objective of this study was to evaluate the adsorption of tetracycline (TC) on the Pinus taeda-derived activated biochar (BC). After NaOH activation, the well-developed porous surface structure was observed with a significantly increase in surface area (959.9 m(2)/g). The kinetic and isotherm studies indicated that hydrogen bonding and p-p interaction on the heterogeneous surface would be the possible mechanisms, while intra-particle diffusion was considered as the major limitation for the adsorption of TC on the activated BC. The maximum adsorption capacity of the activated BC (274.8 mg TC/g BC) was higher than those of various activated BCs from the previous studies while it was similar to those of commercial activated carbons. It indicated that the activated BC had the high potential for TC removal in water.
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