核化学与放射化学2013，Vol.35Issue(1)：46-53,8.DOI:10.7538/hhx.2013.35.01.0046
UO2+2在羟基磷灰石上的吸附
Adsorption of UO2+2 on Hydroxyapatite
邓冰 1蒋树斌 1王和义1
作者信息
- 1. 中国工程物理研究院核物理与化学研究所,四川绵阳621900
- 折叠
摘要
Abstract
Computer simulations are employed to research the adsorption behavior of UO2+2 in hydroxyapatite (HA), which is used as vitro model of bone. The influence of several chela-ting agents is also investigated. Results show that, the adsorption equilibrium of UO2+2 in HA is achieved in 15 min, changes in the particle morphology of HA are not obvious and the adsorption process follow pseudo-second-order kinetics equation. Both of EDTA and DTPA can chelate with UO2+2 , which induce a considerable desorption of UO2+2 from HA, however, also some degree of damage in the bone inorganic surface simultaneously. Citric acid has a strong promotive effect on desorption of UO2+2 from the HA, but high concentration citric acid is unsuitable used as chelating agent, because it will remarkably change the particles morphology of HA. Ascorbic acid has no effect on desorption of UO2+2 from HA, and NTA can lead to an increase of adsorption of UO2+2 on HA.关键词
UO2+2/螯合剂/HAKey words
UO2+2 / chelating agent/ HA分类
化学化工引用本文复制引用
邓冰,蒋树斌,王和义..UO2+2在羟基磷灰石上的吸附[J].核化学与放射化学,2013,35(1):46-53,8.
