期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 592, 期 -, 页码 546-553出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2017.03.087
关键词
Biochar; DOX; Adsorption; Copper modification; Water treatment
资金
- National Natural Science Foundation of China [51609268, 51108167, 51521006]
- Hunan Provincial Innovation Foundation for Postgraduate [CX2015B090, CX2016B135]
In this study, the effect factors andmechanisms of doxycycline hydrochloride (DOX) adsorption on copper nitrate modified biochar (Cu-BC) was investigated. Cu-BC absorbent was synthesized through calcination of peanut shells biomass at 450 degrees C and then impregnation with copper nitrate. The Cu-BC has exhibited excellent sorption efficiency about 93.22% of doxycycline hydrochloride from aqueous solution, which was double higher than that of the unmodified biochar. The experimental results suggest that the adsorption efficiency of DOX on the Cu-BC is dominated by the strong complexation, electrostatic interactions between DOX molecules and the Cu-BC samples. Comprehensively considering the cost, efficiency and the application to realistic water, the Cu-BC hold the significant potential for enhancing the effectiveness to remove DOX from water. (C) 2017 Elsevier B.V. All rights reserved.
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