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	氟、铈对磷酸三钙水解过程及其产物抗酸性的影响; Effect of Fluoride and Cerium Hydrolysis of Tricalcium Phosphate and Anti-acid Property of Its Hydrolysate
	江洋 ; 陈菲 ; 冯祖德
	2002-10
关键词	稀土 磷酸三钙 氟 铈 恒pH值法 rare earths tricalcium phosphate fluoride cerium pH-static method
英文摘要	[中文文摘]研究了不同浓度的F- 和Ce3 +对磷酸三钙 (Ca3 (PO4) 2 ,TCP)的水解过程和水解产物的影响。XRD及IR实验结果表明 ,TCP在NaF溶液中的水解产物为羟基磷灰石 (Ca1 0 (PO4) 6(OH) 2 ,HAP)和氟基磷灰石 (Ca1 0 (PO4) 6F2 ,FAP)的混合物。氟离子浓度越高 ,FAP的含量越多。TCP水解过程的pH值变化随氟离子的起始浓度不同而不同。氟离子浓度越高 ,pH值越低。TCP在CeCl3 溶液中的水解产物为铈取代的羟基磷灰石 (CexCa1 0 -y(PO4) 6-z(OH) 2 ,Ce HAP)。溶解实验表明 ,氟处理比铈处理更有效地增强了TCP水解产物的抗酸性。当F -浓度为 0 1%或Ce3 +浓度为 5× 10 - 2 %时 ,TCP水解产物的抗酸性最强。[英文文摘]The effect of concentration of fluoride and cerium on the hydrolyses and hydrolysate of tricalcium phosphate (Ca_3(PO_4)_2, TCP) in aqueous solution was investigated. A pH-static method was used to estimate the dissolution properties of TCP and its hydrolysate. The crystal structure of the hydrolysate was determined using XRD and IR. The results reveal that the hydrolysate of TCP in NaF solution is the mixture of hydroxyapatite (Ca_ 10(PO_4)_6(OH)_2, HAP) and fluorinapatite (Ca_ 10(PO_4)_6F_2, FAP). The amount of FAP increases as the concentration of fluoride increases. The variety tendency of pH when TCP hydrolyzes is different with different initial concentration of fluoride. The hydrolysate of TCP in CeCl3 solutions is Ce-hydroxyapatite （Cex Ca10- y(PO4)6-z (OH)2 , Ce-HAP) of which calcium is replaced partly by cerium. The dissolution experiments reveal that treatment with fluoride enhances the anti-acid property of TCP more efficiently than treatment with cerium. When fluoride concentration is 0.1% or creium concentration is 5 ×10-2 %, the hydrolysate of TCP shows excellent anti-acid property.; 国家计委科研项目; 福建省自然科学基金资助项目(E0 010003)。
语种	中文
出版者	中国稀土学会
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/3007]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	江洋,陈菲,冯祖德. 氟、铈对磷酸三钙水解过程及其产物抗酸性的影响, Effect of Fluoride and Cerium Hydrolysis of Tricalcium Phosphate and Anti-acid Property of Its Hydrolysate[J],2002.
APA	江洋,陈菲,&冯祖德.(2002).氟、铈对磷酸三钙水解过程及其产物抗酸性的影响..
MLA	江洋,et al."氟、铈对磷酸三钙水解过程及其产物抗酸性的影响".(2002).

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