Through releasing negative ions and infrared radiation, tourmaline can absorb dust and hazardous substances to purify air. The purpose is to improve the air purification efficiency of tourmaline through the remarkable electrical properties of graphene. The efficient preparation method of graphene/tourmaline composite was proposed. The environmental properties of the graphene/tourmaline composites, such as infrared radiation and negative ion release, were systematically analyzed. The Hall effect was used to reveal the enhancement mechanism of graphene on tourmaline. This laid a solid foundation for the application of composites in the air purification fields. The results demonstrated that graphene could significantly enhance the environmental effect of tourmaline. The ball milling method was the optimum preparation method, and the parameters were determined as follows: ball milling speed = 200 rpm and ball milling time = 2 h. The optimum graphene content was 0.5% of the mass of tourmaline. The negative-ion release performance of graphene/tourmaline composites was higher than that of tourmaline by over 11.9%. The infrared emissivity and negative-ion release of graphene/tourmaline composites were observed to be significantly correlated with the band gap. The main reason for the enhancement in the environmental properties of tourmaline by graphene was that the band gap of tourmaline was reduced when graphene was compounded with tourmaline.

通过释放负离子和红外辐射，电气石可以吸收灰尘和有害物质以净化空气。目的是通过石墨烯的卓越电性能来提高电气石的空气净化效率。提出了石墨烯/电气石复合材料的有效制备方法。系统地分析了石墨烯/电气石复合材料的环境特性，例如红外辐射和负离子释放。用霍尔效应揭示了石墨烯在电气石上的增强机理。这为复合材料在空气净化领域的应用奠定了坚实的基础。结果表明，石墨烯可以显着增强电气石的环境效应。球磨法是最佳的制备方法，并确定如下参数：球磨速度＝ 200rpm和球磨时间＝ 2h。最佳石墨烯含量为电气石质量的0.5％。石墨烯/电气石复合材料的负离子释放性能比电气石高11.9％以上。观察到石墨烯/电气石复合材料的红外发射率和负离子释放与带隙显着相关。石墨烯改善电气石环境特性的主要原因是，将石墨烯与电气石混合后，电气石的带隙减小。石墨烯/电气石复合材料的负离子释放性能比电气石高11.9％以上。观察到石墨烯/电气石复合材料的红外发射率和负离子释放与带隙显着相关。石墨烯改善电气石环境特性的主要原因是，将石墨烯与电气石混合后，电气石的带隙减小。石墨烯/电气石复合材料的负离子释放性能比电气石高11.9％以上。观察到石墨烯/电气石复合材料的红外发射率和负离子释放与带隙显着相关。石墨烯改善电气石环境特性的主要原因是，将石墨烯与电气石混合后，电气石的带隙减小。