| 工业石膏合成羟基磷灰石及其对Pb2+,Cu2+,Zn2+和Ni2+的吸附作用 |
| |
| 引用本文： | 刘海弟,李福志,赵璇,陈运法. 工业石膏合成羟基磷灰石及其对Pb2+,Cu2+,Zn2+和Ni2+的吸附作用[J]. 过程工程学报, 2008, 8(1): 42-47 |
| |
| 作者姓名： | 刘海弟 李福志 赵璇 陈运法 |
| |
| 作者单位： | 清华大学核能与新能源技术研究院,北京,100084;中国科学院过程工程研究所多相复杂系统国家重点实验室,北京,100080 |
| |
| 摘 要： | 研究了以工业石膏为原料合成羟基磷灰石(HAp)的方法，并考察了所制备的HAp对水溶液中Pb2+, Cu2+, Zn2+和Ni2+四种金属离子的吸附作用. 结果表明，在反应温度90℃、磷酸氢二铵和工业石膏物质的量比为1:2的条件下，反应24 h便可以得到较纯的HAp. 所制备的HAp在pH 7的条件下对水溶液中的Pb2+, Cu2+, Zn2+和Ni2+均具有一定的吸收能力，其饱和吸附量分别为1095, 86.76, 64.68和67.90 mg/g. 该吸附过程符合Langmuir吸附模型.
|
| 关 键 词： | 石膏 固体废弃物 羟基磷灰石 制备 水处理 吸附 |
| 文章编号： | 1009-606X（2008）01-0042-06 |
| 收稿时间： | 2007-07-23 |
| 修稿时间： | 2007-08-31 |
Preparation of Hydroxyapatite with Industrial Gypsum and Its Adsorptionupon Pb2+, Cu2+, Zn2+ and Ni2+ |
| |
| LIU Hai-di,LI Fu-zhi,ZHAO Xuan,CHEN Yun-fa. Preparation of Hydroxyapatite with Industrial Gypsum and Its Adsorptionupon Pb2+, Cu2+, Zn2+ and Ni2+[J]. Chinese Journal of Process Engineering, 2008, 8(1): 42-47 |
| |
| Authors: | LIU Hai-di LI Fu-zhi ZHAO Xuan CHEN Yun-fa |
| |
| Abstract: | The preparation method of hydroxyapatite (HAp) with industrial gypsum was investigated. The adsorption abilities of as-prepared samples upon Pb2+, Cu2+, Zn2+ and Ni2+ ions in aqueous solution were examined. It was indicated that pure HAp could be successfully fabricated when the molar ratio of (NH4)2HPO4 to industrial gypsum was 1:2 with the reaction between them for 24 h under 90℃. The as-synthesized HAp exhibited obvious adsorption ability upon Pb2+, Cu2+, Zn2+ and Ni2+ ions under pH 7, and their saturated adsorption amounts were 1095, 86.76, 64.68 and 67.90 mg/g respectively. Their adsorption behaviors could be described with the Langmuir model approximately. |
| |
| Keywords: | gypsum solid waste hydroxyapatite preparation water treatment adsorption |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《过程工程学报》浏览原始摘要信息 |
|
点击此处可从《过程工程学报》下载全文 |
|
