生物炭基复合水凝胶的制备及应用研究进展

Research Progress on the Preparation and Application of Biochar-based Composite Hydrogels

生物炭基复合水凝胶具有优异的理化性质,近年来在诸多领域有所研究并得到应用。本文综述了生物炭基复合水凝胶的制备方法,如物理交联法和化学交联法;总结了生物炭基复合水凝胶在去除水体污染物、土壤改良、作物增产、缓释肥料和缓解植物重金属胁迫方面的应用,阐明了相关应用机制及作用机理;在此基础上,展望了生物炭基复合水凝胶未来的研究方向,分析了生物炭基复合水凝胶在应用中存在的问题和潜在的风险,并提出了相应建议。

Biochar-based composite hydrogel has excellent physicochemical properties.Thus it has been studied and applied in many fields in recent years.In this paper,the preparation methods of biochar-based composite hydrogels were reviewed,such as physical cross-linking method and chemical cross-linking method.The applications of biochar-based composite hydrogels in removing pollutants in water,soil im‐provement,increasing crop yield,slow-releasing fertilizer and alleviating plant heavy metal stress were summarized,and the application mechanism and action mechanism were expounded.On this basis,the future research direction of biochar-based composite hydrogels was prospected,the existing problems and potential risks in the application of biochar-based composite hydrogels were analyzed,and the corre‐sponding suggestions were put forward.