Adsorption Behavior of Immobilized Nanometer Barium-Strontium Titanate for Cadmium Ion in Water
文献类型：期刊论文
| 作者 | Zhang, D; Zhang, WJ; Guan, X; Gao, H; He, HB; Zhang, D, Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110168, Peoples R China |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2009 |
| 卷号 | 29期号:3页码:824-828 |
| 关键词 | Immobilized Nanometer Barium-strontium Titanate Silica Gel g Adsorption Behavior Cadmium Ion Faas |
| ISSN号 | 1000-0593 |
| 英文摘要 | Nanometer barium-strontium titanate immobilized on silica gel G was successfully prepared by the citrate acid sol-gel method and characterized using X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transform infrared spectrophotometer (FTIR). By means of the determination of flame atomic absorption spectrometry (FAAS), the adsorption behavior of immobilized nanometer-barium strontium titanate for cadmium ion was investigated. The results showed that the nanometer barium-strontium titanate was immobilized on the silica gel G firmly, gaining a new sort of adsorbent. And the cadmium ion studied could be quantitatively retained in the pH value range of 4-7. The adsorption behavior followed a Freundlich adsorption isotherm and a pseudo-second-order kinetic model. The thermodynamic constants of the adsorption process, such as enthalpy changes(Delta H), Gibbs free energy changes(Delta G) and entropy changes(Delta S), were evaluated. These showed that the adsorption of cadmium ion by immobilized nanometer barium-strontium titanate was endothermic and spontaneous physical process. The cadmium ion adsorbed could be completely eluted using 1 mol . L-1 HNO3. A new method for the determination of trace cadmium ion in water based on this immobilized nanometer barium-strontium titanate preconcentration and FAAS determination was proposed. The method has been applied to the determination of trace cadmium ion in tap water and river water with satisfactory results. |
| 学科主题 | Spectroscopy |
| 语种 | 中文 |
| WOS记录号 | WOS:000263801800060 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54217]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Zhang, D, Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110168, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, D,Zhang, WJ,Guan, X,et al. Adsorption Behavior of Immobilized Nanometer Barium-Strontium Titanate for Cadmium Ion in Water[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2009,29(3):824-828. |
| APA | Zhang, D,Zhang, WJ,Guan, X,Gao, H,He, HB,&Zhang, D, Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110168, Peoples R China.(2009).Adsorption Behavior of Immobilized Nanometer Barium-Strontium Titanate for Cadmium Ion in Water.SPECTROSCOPY AND SPECTRAL ANALYSIS,29(3),824-828. |
| MLA | Zhang, D,et al."Adsorption Behavior of Immobilized Nanometer Barium-Strontium Titanate for Cadmium Ion in Water".SPECTROSCOPY AND SPECTRAL ANALYSIS 29.3(2009):824-828. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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