CAJ | 학술논문

以高锰酸钾和马来酸为原料采用溶胶-凝胶法合成了氧化锰八面体分子筛,详细考察了制备参数如焙烧条件、陈化条件、水热处理对合成材料的晶型和比表面积的影响,焙烧温度影响制备材料的晶型,焙烧时间对比表面积有较大影响,而适当的水热处理则可以增加材料的比表面积.较为合适的制备条件为70℃水热处理,在450℃焙烧2h,得到的样品具有较好的晶型和较大的表面积.
이고맹산갑화마래산위원료채용용효-응효법합성료양화맹팔면체분자사,상세고찰료제비삼수여배소조건、진화조건、수열처리대합성재료적정형화비표면적적영향,배소온도영향제비재료적정형,배소시간대비표면적유교대영향,이괄당적수열처리칙가이증가재료적비표면적.교위합괄적제비조건위70℃수열처리,재450℃배소2h,득도적양품구유교호적정형화교대적표면적.
Manganese oxide octahedral molecular sieve is synthesised by sol-gel method with KMnO4 and maleic as raw materials.The effects of the preparation conditions such calcinations time and temperature,aging time,hydrothermal temperature on the crystallization and surface area of the samples are studied.The results show that calcinations temperature affects the samples' crystallization,the calcinations time affects the surface area greatly,and the surface area can be increased through hydrothermal treatment.The best synthesis condition is:hydrothermal treating at 70℃,calcinations at 450℃ for about 2h.