摘要
以粉煤灰为主要原料,添加适量超细电气石粉和烧结助剂,采用湿式超细研磨,干压成型和低温煅烧工艺,制备了粉煤灰基多孔陶瓷.结合X射线衍射仪、扫描电子显微镜等对粉煤灰基多孔陶瓷材料的结构与性能进行了表征,并探讨了其结构和性能对孔雀石绿吸附和降解能力的影响.结果表明,粉煤灰基多孔陶瓷孔径细小、均匀,孔隙率为38%.该材料对孔雀石绿溶液100 m in的脱色率达到96%,相对于同一工艺条件下制备的不含电气石的粉煤灰基多孔陶瓷提高了25.1%.
Taking flyash as main material,adjoining ultra-fine tourmaline and sintering additive,using wet-superfine milling,half-dry pressing and low-temperature sintering,fly ash-based porous ceramics was obtained.The material was characterized by X-ray diffraction,scanning electron microscopy and electric-heated thermostatic water bath.The effect of its structure and performance on adsorption and degradation of malachite green aqueous solution was investigated.The results indicate that the porosity of porous ceramics was 38%.Using the prepared material,the decoloration conversion for malachite green aqueous solution can reach 96% in 100 min and be increased by 25.1% compared with diatomite-based porous ceramics of non-tourmaline using the same manufacturing technique.
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2011年第4期452-454,466,共4页
Journal of Henan Agricultural University
基金
河南省科技攻关项目(082102190010)
关键词
粉煤灰
多孔陶瓷
电气石
吸附
降解
fly ash
porous ceramics
tourmaline
adsorption
degradation
