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wlfine82
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Through experimental research, the following conclusions can be drawn: 1. Synthesis of Lanthanum carbonate Crystals under the action of ¦¢-cyclodextrin (¦Â-CD) . Lanthanum carbonate prepared flower-like, particle size is about 10¦Ìm; prepared with different thickness of lanthanum carbonate at both ends of nanotubes, tube length is 2¦Ìm, Coarse about 300 ~ 400nm. 2. Polyvinyl alcohol (PVA) under the action of lanthanum carbonate Crystals. Preparation of a six-rowed lanthanum carbonate layers, particle size is about 8¦Ìm; prepared lanthanum carbonate nanorods, rod length is 2¦Ìm, Coarse about 300 ~ 400nm. 3. To cotton as the template synthesis of lanthanum carbonate crystals. Size of approximately 10¦Ìm was prepared tree lanthanum carbonate particles. 4. Through the determination of molybdenum antimony anti-P combined effects of lanthanum carbonate. The strongest binding with the phosphate sample as the synthesis of polyvinyl alcohol under the action of lanthanum carbonate nanorods, the reaction of the sample and the phosphate solution to achieve the shortest time the reaction end, and the phosphorus content of at least the end solution. |
2Â¥2010-05-09 15:27:57
xunmengzhang
ľ³æ (ÖøÃûдÊÖ)
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- ×¢²á: 2010-03-31
- ÐÔ±ð: GG
- רҵ: Ò©Îﻯѧ
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Through experimental research, the availability of the following conclusions: 1. ¦¢-cyclodextrin (¦Â-CD) under the action of lanthanum carbonate Crystals. Lanthanum carbonate prepared flower-like, particle size is about 10¦Ìm; prepared with different thickness of lanthanum carbonate at both ends of nanotubes, tube length is 2¦Ìm, Coarse about 300 ~ 400nm. 2. Polyvinyl alcohol (PVA) under the action of lanthanum carbonate Crystals. Preparation of a six-rowed lanthanum carbonate layers, particle size is about 8¦Ìm; prepared lanthanum carbonate nanorods, rod length is 2¦Ìm, Coarse about 300 ~ 400nm. 3. To cotton as the template synthesis of lanthanum carbonate crystals. Size of approximately 10¦Ìm was prepared tree lanthanum carbonate particles. 4. Through the determination of molybdenum antimony anti-P combined effects of lanthanum carbonate. The strongest binding with the phosphate sample as the synthesis of polyvinyl alcohol under the action of lanthanum carbonate nanorods, the reaction of the sample and the phosphate solution to achieve the shortest time the reaction end, and the phosphorus content of at least the end solution. |
3Â¥2010-05-09 18:19:35
¸ßÐËÐÇÆÚÎå
Ìú¸Ëľ³æ (ÖøÃûдÊÖ)
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- ÐÔ±ð: MM
- רҵ: ¸ÖÌúÒ±½ð

4Â¥2010-05-09 19:12:10
ss001
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5Â¥2010-05-09 22:36:10
hefangfang
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In the study, one can obtain four conclusions. Crystalline lanthanum carbonate was synthesized with ¦Â-cyclodextrin(¦Â-CD), shape as efflorescent, particle size about 10¦Ìm. The thickness of lanthanum Carbonate nanotubes is difference in both ends, longs about 2¦Ìm, diameters of 300-400¦Ìm. ¿´¿´Ðв»£¿ |

6Â¥2010-05-10 09:36:39
duxinghao
Òø³æ (ÖøÃûдÊÖ)
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- ×¢²á: 2008-11-13
- רҵ: ½ðÊô²ÄÁϵÄÁ¦Ñ§ÐÐΪ
¸ßÐËÐÇÆÚÎå(½ð±Ò+160, ·ÒëEPI+1):·Ç³£¸ÐлÄú 2010-05-10 09:59:33
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Through experimental research, the following conclusions can be drawn: 1. Synthesis of carbonate Lanthanum Crystals under the action of ¦¢-cyclodextrin (¦Â-CD) . Flower-like carbonate Lanthanum has been prepared with the particle size of about 10¦Ìm; Besides, carbonate lanthanum nanotubes with different diameters at both ends have also been prepared with the tube length of about 2¦Ìm and diameters of about 300 ~ 400nm. 2. Synthesis of carbonate Lanthanum Crystals under the action of Polyvinyl alcohol (PVA). The six-rowed layered carbonate lanthanum crystals have been prepared with the particle size of about 8¦Ìm; Carbonate lanthanum nanorods have also prepared with the rod length of about 2¦Ìm and diameter of about 300 ~ 400nm. 3. Synthesis carbonate of lanthanum crystals based on the cotton template. Tree-like carbonate lanthanum particles with the size of about 10¦Ìm have been prepared. 4. The ability for carbonate lanthanum to combine with P was measured by anti-molybdenum (antimony) method. It found that the strongest binding with the phosphate sample was the carbonate lanthanum nanotubes synthesized under the action of polyvinyl alcohol. The reaction of the sample and the phosphate solution took the shortest time to the end, and the least phosphorus content remained in the end solution. |
7Â¥2010-05-10 09:51:20














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