高效可回收吸附剂磁性生物炭研究进展

Research Progress of Efficient Recyclable Adsorbent Magnetic Biochar

生物炭因其来源广泛、成本低廉、吸附效果优异而受到广泛关注,但由于粉末状生物炭在吸附完成后不易固液分离,其自身应用范围受到限制。研究表明:生物炭与磁性介质结合制备磁性生物炭,可以在外加磁场作用下轻松从废液中分离,因此磁性生物炭已成为生物炭领域的热门趋势。总结近年来磁性生物炭的制备和应用研究进展,探讨不同合成原料、制备方法对其产生的影响,分析磁性生物炭对不同类型水体污染物的吸附机理及应用,得到磁性生物炭研究的局限性和未来发展趋势,为未来磁性生物炭研究领域的深化提供参考依据。

Biochar has received high attention due to its wide range of sources, low cost, and excellent adsorption effect, but it is not easy to separate from the waste liquid after the adsorption is completed, which limits its scope of application. Studies have shown that the combination of biochar and magnetic media to prepare magnetic biochar can achieve solid-liquid separation under the action of a magnetic field. Magnetic biochar has become a hot trend in the field of biochar. The research progress of the preparation and application of magnetic biochar in recent years was reviewed, the influence of different synthetic raw materials and preparation methods on it was discussed, and the adsorption application and mechanism of magnetic biochar to different types of water pollutants were summarized. Furthermore, the development trend of magnetic biochar and related problems were analyzed and discussed, which can provide a reference for the deepening of the field of magnetic biochar in the future.