采用甘蔗渣为生物质原料,浸渍环氧树脂后(两者质量比为2.5∶1)高温烧结制备了分级多孔木质陶瓷.使用XRD、SEM、TG等手段研究了木质陶瓷的物相组成、微观形貌和热稳定性,通过压汞法和氮吸附法分析了木质陶瓷从微米到纳米范围的分级多孔结构.研究结果表明,木质陶瓷主要由非石墨化碳层和微量的磷石英组成.木质陶瓷保留了甘蔗渣的管状孔洞,具有从宏孔到介孔分布的分级多孔结构.木质陶瓷的宏孔孔径分布主要在0.4～6μm之间,BET表面积最高达39.7m2/g.随着烧结温度的升高,木质陶瓷的BET表面积、介孔体积和平均孔径都降低.
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