采用低温水溶液法合成三水碳酸镁晶体,考查了反应溶液Mg2+初始浓度、NH4 HCO3初始浓度对三水碳酸镁晶体的形貌及晶须产品长度及长径比的影响.结果表明,在无添加剂的条件下,NH4 HCO3初始浓度对三水碳酸镁晶体结晶形貌具有重要影响,在Mg2初始浓度为0.5 mol/L,(Mg2+):(NH4HCO3)=1:2,反应温度为50℃、反应时间50 min条件下,可以合成出高长径比的三水碳酸镁晶须产品.
参考文献
| [1] | Freitag F;Kleinebudde P .How do roll compaction/dry granulation affect the tableting behaviour of inorganic materials? Comparison of four magnesium carbonates.[J].European journal of pharmaceutical sciences,2003(4):281-289. |
| [2] | A. Botha;C. A. Strydom .Preparation of a magnesium hydroxy carbonate from magnesium hydroxide[J].Hydrometallurgy,2001(3):175-183. |
| [3] | Mitsuhashi K;Tagami N;Tanabe K;Ohkubo T;Sakai H;Koishi M;Abe M .Synthesis of microtubes with a surface of "house of cards" structure via needlelike particles and control of their pore size[J].Langmuir: The ACS Journal of Surfaces and Colloids,2005(8):3659-3663. |
| [4] | 闫小星,李云飞,薛冬峰,晏成林,王雷.基于水合碳酸镁结晶过程的化学键分析[J].人工晶体学报,2007(05):991-999. |
| [5] | 王万平,张懿.碳酸盐热解法制备氧化镁晶须[J].硅酸盐学报,2002(z1):93-95. |
| [6] | X. Wang;D. Xue .Direct observation of the shape evolution of MgO whiskers in a solution system[J].Materials Letters,2006(25/26):3160-3164. |
| [7] | 邵平平,李志宝,密建国.碳酸镁水合物在283-363 K范围内的晶体组成及晶型[J].过程工程学报,2009(03):520-525. |
| [8] | 陈敏,李月圆,王健东,陈庆武,崔虹旭,申莹莹.利用菱镁矿制备碳酸镁晶须[J].硅酸盐学报,2009(10):1649-1653. |
| [9] | Coleyshaw EE.;Crump G.;Griffith WP. .Vibrational spectra of the hydrated carbonate minerals ikaite, monohydrocalcite, lansfordite and nesquehonite[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2003(10):2231-2239. |
| [10] | 闫平科,田海山,高玉娟,王斌,马正先,梁帅.高长径比三水碳酸镁晶须的合成研究[J].人工晶体学报,2012(01):158-164. |
| [11] | 闫平科,薛国梁,高玉娟,王来贵,田海山,卢智强.液相微波法合成三水碳酸镁晶须的研究[J].硅酸盐通报,2013(07):1248-1252,1257. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%