摘要
采用注浆成型技术制备了负载活性炭的硅藻土多孔陶瓷,研究烧结温度对其孔径、孔隙率、强度和晶相的影响,并测定其细菌过滤性能。研究发现,经1000℃烧成的产品,硅藻土保持原有的微孔结构,孔隙率最高(67%),强度较好(5.81MPa),而且对大肠杆菌截留效果好,滤液中未检测出大肠杆菌,可满足国家饮用水标准的要求。
Porous ceramics has been prepared in this work by slip casting and sintering. Diatomite and activated carbon are used as the major materials. The development of pore size, porosity, strength and crystal phases during sintering are studied. It is found that the best property combination is obtained by sintering the porous ceramic at 1O00℃. The intrinsic pore structure of diatomite is preserved and the ceramic filter has sufficient strength for filtration applications. Filtration test has found that the porous ceramic filter can completely re- move bacillus, giving the water meeting the hygienic standard for drinking.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2013年第12期1755-1757,共3页
Journal of Functional Materials
基金
国家自然科学基金面上资助项目(51072169)
关键词
硅藻土
活性炭
多孔陶瓷
diatomite
activated carbon
porous ceramic
