|
|||||
|
|
| 用悬液Wien效应研究Na+、K+、NH4+、Ca2+、Zn2+和Cd2+阳离子与红壤黏粒间的相互作用及能量关系 | |
| 引用本文： | 朱浩文,王玉军,姜军,李成保,周东美,徐仁扣,周立祥. 用悬液Wien效应研究Na+、K+、NH4+、Ca2+、Zn2+和Cd2+阳离子与红壤黏粒间的相互作用及能量关系[J]. 土壤学报, 2009, 46(2): 308-314 |
| 作者姓名： | 朱浩文 王玉军 姜军 李成保 周东美 徐仁扣 周立祥 |
| 作者单位： | 1. 土壤和农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008;南京农业大学资源与环境科学学院,南京,210095 2. 土壤和农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008 3. 南京农业大学资源与环境科学学院,南京,210095 |
| 基金项目： | 国家自然科学基金，中国科学院知识创新工程项目 |
| 摘 要： | 采用悬液Wien效应法研究了Na+、K+、NH4+、Ca2+、Zn2+和Cd2+阳离子与红壤黏粒间的相互作用及能量关系。结果表明,在试验条件下,红壤黏粒与阳离子Na+、K+、NH4+、Ca2+、Zn2+和Cd2+的平均结合自由能分别为:4.50、7.35、7.15、9.12、9.84和9.63 kJ mol-1。含Ca2+悬液的电导率随场强增加而递增最快,含Na+和NH4+悬液的电导率随场强增加而增加最慢,而含K+、Zn2+和Cd2+的悬液电导率的增速相近、介于其间。红壤悬液中不同阳离子的解离速率顺序为Ca2+>K+>Zn2+=Cd2+>Na+=NH4+。在低场强(15～80 kV cm-1)下,不同阳离子的平均吸附自由能ΔGad没有差异。在场强100 kV cm-1以上,二价阳离子的ΔGad明显大于单价阳离子,不同阳离子间ΔGad的大小顺序为NH4+≤Na+ |
| 关 键 词： | 悬液Wien效应 阳离子 红壤黏粒 平均结合自由能 平均吸附自由能 平均解离度 |
STUDIES OF INTERACTIONS AND ENERGY RELATIONSHIPS BETWEEN CATIONS (Na+, K+, NH+4, Ca2+, Zn2+ AND Cd2+) AND CLAY FRACTION OF RED SOIL USING THE WIEN EFFECT IN DILUTE SUSPENSIONS |
|
| Zhu Haowen,Wang Yujun,Jiang Jun,Li Chengbao,Zhou Dongmei,Xu Renkou and Zhou Lixiang. STUDIES OF INTERACTIONS AND ENERGY RELATIONSHIPS BETWEEN CATIONS (Na+, K+, NH+4, Ca2+, Zn2+ AND Cd2+) AND CLAY FRACTION OF RED SOIL USING THE WIEN EFFECT IN DILUTE SUSPENSIONS[J]. Acta Pedologica Sinica, 2009, 46(2): 308-314 | |
| Authors: | Zhu Haowen Wang Yujun Jiang Jun Li Chengbao Zhou Dongmei Xu Renkou Zhou Lixiang |
| Affiliation: | College of Resources and Environmental Science, Nanjing Agricultural University; State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science, the Chinese Academy of Sciences;State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science, the Chinese Academy of Sciences;State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science, the Chinese Academy of Sciences;State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science, the Chinese Academy of Sciences;State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science, the Chinese Academy of Sciences;State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science, the Chinese Academy of Sciences;College of Resources and Environmental Science, Nanjing Agricultural University |
| Abstract: | |
| Keywords: | Wien effect in suspension Cation Clay fraction of red soil Mean free binding energy Mean free adsorption energy Mean dissociation degree |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《土壤学报》浏览原始摘要信息 | |
| 点击此处可从《土壤学报》下载全文 | |