球磨改性生物炭在环境修复中的应用进展

Application advances of ball milling modified biochar in environmental remediation

利用球磨机械力化学技术制备的改性生物炭具有成本低、产能高、绿色无溶剂等优点,近年来受到研究人员的广泛关注。球磨改性增加生物炭表面官能团、扩大其比表面积以及提高吸附容量,使球磨改性生物炭对环境污染物具有优异的去除性能,在环境修复领域应用前景广阔。介绍了球磨改性生物炭的制备与理化性质,总结了球磨改性生物炭在环境修复中对污染物质去除的最新进展,同时明确其对各类污染物的去除机制。在此基础上,探讨球磨改性生物炭在环境修复中目前存在的问题与限制因素,从明确技术和经济可行性、扩展材料应用范围以及厘清潜在生态环境风险等方面提出未来研究方向。

Modified biochar prepared by ball milling mechanochemical technology has been widely concerned by researchers in recent years due to its many advantages,such as low cost,high productivity,green and solvent-free.Ball milling modification can increase the surface functional groups,expand the specific surface area and improve the adsorption capacity,which makes biochar have excellent removal performance for environmental pollutants and broad application prospect in the field of environmental remediation.The preparation and physicochemical properties of ball milling modified biochar are introduced.The latest progress of ball milling modified biochar in the removal of pollutants in environmental remediation is summarized.The removal mechanism of ball milling modified biochar for various pollutants is defined.On this basis,the existing problems and limiting factors of ball milling modified biochar in environmental remediation are discussed.The future research directions are put forward from the aspects of clarifying the technical and economic feasibility,expanding the application scope of materials,clarifying the potential ecological and environmental risks.