期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 29, 期 12, 页码 16988-17000出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-021-16792-0
关键词
Activated carbon; Vitis vinifera; Adsorption; Naproxen; Mechanism
资金
- CAPES (Coordination for the Improvement of Higher Education Personnel)
- CNPq (National Council for Scientific and Technological Development)
The study demonstrates that activated carbon derived from grape branches is effective in removing naproxen and treating synthetic mixtures containing drugs and salts, with a removal efficiency of 95.63%. Furthermore, the adsorbent can be regenerated up to 7 times using an HCl solution, showcasing its sustainable reuse potential.
Activated carbon prepared from grape branches was used as a remarkable adsorbent to uptake naproxen and treat a synthetic mixture from aqueous solutions. The material presented a highly porous texture, a surface area of 938 m(2) g(-1), and certain functional groups, which were key factors to uptake naproxen from effluents. The maximum adsorption capacity predicted by the Langmuir model for naproxen was 176 mg g(-1). The thermodynamic study revealed that the adsorption process was endothermic and spontaneous. The linear driving force (LDF) model presented a good statistical adjustment to the experimental decay data. A suitable interaction pathway of naproxen adsorption onto activated carbon was proposed. The adsorbent material was highly efficient to treat a synthetic mixture containing several drugs and salts, reaching 95.63% removal. Last, it was found that the adsorbent can be regenerated up to 7 times using an HCl solution. Overall, the results proved that the activated carbon derived from grape branches could be an effective and sustainable adsorbent to treat wastewaters containing drugs.
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