| 几种土壤锰结核对Cr(Ⅲ)的氧化与锰矿物类型 |
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| 引用本文： | 刘桂秋,刘凡,谭文峰.几种土壤锰结核对Cr(Ⅲ)的氧化与锰矿物类型[J].生态环境,2002,11(3):241-244. |
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| 作者姓名： | 刘桂秋 刘凡 谭文峰 |
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| 作者单位： | 1. 华中农业大学农业部亚热带土壤资源与环境重点开放实验室,湖北,武汉,430070;西北工业大学空调制冷与太阳能应用研究所,陕西,西安,710072
2. 华中农业大学农业部亚热带土壤资源与环境重点开放实验室,湖北,武汉,430070 |
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| 基金项目： | 国家自然科学基金(4970001) |
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| 摘 要： | 以几种土壤锰结核为实验材料.研究了不同氧化锰对Cr(Ⅲ)的氧化特性。结果表明,供试锰结核对Cr(Ⅲ)的氧化能力大小顺序为N1-1>N4-1>N2-1>N5-1,与他们所含易还原性锰含量顺序不一致。换算成易还原性锰对Cr(Ⅲ)的氧化后,则其顺序为N4-1>N2-l>N1-1>N5-1。由组成供试锰结核的主要氧化锰矿物得知,对Cf(Ⅲ)的氧化能力;钠水锰矿>锂硬锰矿>钙锰矿,这可能与氧化锰矿物的结晶程度、晶体构造和Mn(Ⅳ)含量的差异以及Cr(Ⅲ)在氧化锰表面的吸附位置有关。
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| 关 键 词： | 氧化锰 Cr(Ⅲ) 氧化 |
| 文章编号： | 1008-181X(2002)03-0241-04 |
| 修稿时间： | 2002年1月6日 |
Study on the oxidation of Cr(Ⅲ) by Mn nodules in several soil |
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| LIU Gui-qiu,LIU Fan,TAN Wen-feng
: Key Lab of Subtropical Soil resource & Environment,Ministry of Agriculture. Huazhong Agricultural University,Wuhan ,China, : Northwestern Polytechnical University,Air-conditioning & Solar Energy Institute,Xi'an ,China.Study on the oxidation of Cr(Ⅲ) by Mn nodules in several soil[J].Ecology and Environmnet,2002,11(3):241-244. |
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| Authors: | LIU Gui-qiu LIU Fan TAN Wen-feng
: Key Lab of Subtropical Soil resource & Environment Ministry of Agriculture Huazhong Agricultural University Wuhan China : Northwestern Polytechnical University Air-conditioning & Solar Energy Institute Xi'an China |
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| Affiliation: | LIU Gui-qiu,LIU Fan,TAN Wen-feng
1: Key Lab of Subtropical Soil resource & Environment,Ministry of Agriculture. Huazhong Agricultural University,Wuhan 430070,China, 2: Northwestern Polytechnical University,Air-conditioning & Solar Energy Institute,Xi'an 710072,China |
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| Abstract: | Reaction characteristics of Cr(b!) oxidized by several soil Mn-nodules were studied, and the result showed: the sequence that the amount of Cr(b!) oxidized by test samples was N1-1 > N4-1 > N2-1 > N5-1, and it didn' t consistent with the order of test samples' reductive manganese amount. According to the content of Mn in nodules dissolved with 0.1 mol/L NH2OH |
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