摘要
本文以电气石和纳米二氧化钛以及四种镧系稀土氧化物为原料,试制空气负离子保健基元材料,并对它们的性能进行了研究。结果表明:纳米二氧化钛、二氧化铈、氧化镧、氧化错、氧化钕分别与电气石的复合中,空气负离子产生效果为与二氧化铈的复合最强,氧化镨、氧化镧效果一般,氧化钕、氧化钛反而降低了电气石产生的空气负离子浓度;电气石与二氧化铈的最佳复合比例是1:1,100g测试粉体空气负离子浓度即达到2000个／cm3左右;比例为1:1的电气石／二氧化铈复合粉体:在18h内表面能量对空气分子的离解达到饱和,且随样品测试量的增加呈递增关系。
The paper has the trial-preparation of air-negative-ion healthcare elementary materials that are made of tourmaline, nano-TiO2 and four kinds of lanthanum series oxides, and then has the research of their performances. The results show that CeO2 takes on the best effect when nano-TiO2, CeO2, La2O3, Pr6O11, Nd2O3 compounds singly with the tourmaline, Pr6O11, La2O3 take common effect, Nd2O3, nano-TiO2 impels instead the air-negative-ion effect of tourmaline reducing; the best proportion of tourmaline and CeO2 is 1:1, and the air-negative-ion concentration reaches 2000 negative ions/cm3 on having the testing of the sample of 100g; the best proportion of tourmaline and CeO2: the surface energy on the air molecule's ionizations arrives at the saturation in 18 h, and presents the increase by degrees with the increase of the sample's amount.
出处
《中国矿业》
北大核心
2005年第1期53-56,共4页
China Mining Magazine
基金
国家高技术研究发展计划(863计划)(项目编号:2001AA322070)
关键词
保健
基元材料
空气负离子
电气石
稀土
Healthcare Elementary materials Air negative ion Tourmaline Rare earth
