摘要
制备合成一系列膦酸钛多孔材料,并应用于氨气的静态吸附研究。以BET法测比表面积,BJH法测定孔径分布。对材料的孔结构表征表明合成的膦酸钛材料比表面积高达400m2/g。统计6种不同膦酸钛和分子筛的静态吸附数据,计算出每个时间段的吸附效率。氨气的静态吸附测试表明该材料具有较高的吸附容量,吸附效率均达150%以上。材料的比表面积越高,材料中酸含量越高,吸附量越大,吸附效率越高,这是物理吸附和化学吸附共同作用的结果。
A serial of Titanium Phosphonate porous materials was fabricated and their static adsorption studies were performed.The specific surface area was tested by BET method and the pore-size distribution was tested by BJH method.The resulting materials were characterized by N2 adsorption analysis and the resultant materials exhibited high surface area,up to 400 m2/g.The static adsorption of 6 kinds of Titanium Phosphonate materials was calculated to find the adsorption efficiency in different period.The samples had high surface area and acid amount,the NH3 adsorption capacity and adsorption efficiency （＞150％） were large.The big specific surface area and big acid concentration leads to big adsorbance and high adsorption efficiency,which is due to the chemical adsorption and physical adsorption co-effect.
出处
《消防科学与技术》
CAS
北大核心
2014年第2期124-127,共4页
Fire Science and Technology
基金
国家"十二五"科技支撑计划项目(2011BAK03B07)
公安部应用创新项目(2011YYCXWJXY131)
关键词
膦酸钛
比表面积
氨气
静态吸附
Titanium Phosphonate
specific surface area
ammonia gas
static adsorption
