| 用亚甲基蓝方法测定红色污泥与棕闪粗面岩的表面积 |
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| 引用本文： | ZHANG Gang-Y,LUO Yong-Ming,DENG Xi-Hai. 用亚甲基蓝方法测定红色污泥与棕闪粗面岩的表面积[J]. 土壤圈, 2002, 12(2): 189-192 |
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| 作者姓名： | ZHANG Gang-Y LUO Yong-Ming DENG Xi-Hai |
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| 作者单位： | InstituteofSoilScience,theChineseAcademyofSciences,Nanjing210008（China） |
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| 基金项目： | *1National Natural Science Foundation of China (Nos.49831070 and 49971046). |
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| 摘 要： | The adsorption of methylene blue (MB) on three soil amendments, red mud from Hungary, red mudfrom UK and beringite from Belgium, was studied to determine the surface areas of the amendments usinga 0.005 mol L-1 NaCl solution and deionised water as background solutions. The surface areas determinedby the methylene blue method in the 0.005 mol L-1 NaCl solution were 3.357, 2.340 and 5.576 m2 g-1 forred mud (Hungary), red mud (UK) and beringite, respectively slightly lower than those in the deionisedwater system. The largest surface area of beringite suggested that the MB could adsorb effectively on theinterlayer surface of illite. The effect of NaCl on the surface areas was relatively small and may therefore beignored. Both the 0.005 mol L-1 NaCl solution and deionised water could be used as a background solution for measurement of surface area of oxide-rich materials.
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| 关 键 词： | 红壤 蓝色亚甲基 土壤改良 匈牙利 |
Determination of surface area of red mud and beringite using methylene blue method |
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| ZHANG Gang-Y,LUO Yong-Ming and DENG Xi-Hai. Determination of surface area of red mud and beringite using methylene blue method[J]. Pedosphere, 2002, 12(2): 189-192 |
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| Authors: | ZHANG Gang-Y LUO Yong-Ming DENG Xi-Hai |
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| Affiliation: | Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China);Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China);Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China) |
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| Abstract: | The adsorption of methylene blue (MB) on three soil amendments, red mud from Hungary, red mudfrom UK and beringite from Belgium, was studied to determine the surface areas of the amendments usinga 0.005 mol L-1 NaCl solution and deionised water as background solutions. The surface areas determinedby the methylene blue method in the 0.005 mol L-1 NaCl solution were 3.357, 2.340 and 5.576 m2 g-1 forred mud (Hungary), red mud (UK) and beringite, respectively slightly lower than those in the deionisedwater system. The largest surface area of beringite suggested that the MB could adsorb effectively on theinterlayer surface of illite. The effect of NaCl on the surface areas was relatively small and may therefore beignored. Both the 0.005 mol L-1 NaCl solution and deionised water could be used as a background solution for measurement of surface area of oxide-rich materials. |
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| Keywords: | beringite methylene blue red mud surface area |
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