以六水合氯化镁(MgCl·6H2O)为原料,以尿素为沉淀剂,采用改进的多元醇法制备了颗粒均匀、分散性好的纳米氧化镁粒子,并分别研究了反应温度和反应时间对前驱体和MgO粉体结构和形貌的影响.研究表明,在110℃反应8h后制备的前驱体为30 nm左右纳米颗粒状碱式碳酸镁Mg5 (CO3)4(OH)2(H2O)4.在700℃焙烧3h后可得到粒径为50 nm左右分散性较好的MgO纳米粒子.该种纳米氧化镁粉体对水溶液中的锶具有较好的吸附作用,吸附量为5.3 mg/g.
参考文献
| [1] | 游新锋;张振涛;马辉.无机锶吸附剂的制备及其应用[J].核化学与放射化学,2015(3):171-176. |
| [2] | A. Botha;C. A. Strydom.Preparation of a magnesium hydroxy carbonate from magnesium hydroxide[J].Hydrometallurgy,20013(3):175-183. |
| [3] | Narottom Sutradhar;Apurba Sinhamahapatra;Sandip Kumar Pahari.Controlled Synthesis of Different Morphologies of MgO and Their Use as Solid Base Catalysts[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201125(25):12308-12316. |
| [4] | Hanlon, James M.;Diaz, Laura Bravo;Balducci, Giulia;Stobbs, Blane A.;Bielewski, Marek;Chung, Peter;MacLaren, Ian;Gregory, Duncan H..Rapid surfactant-free synthesis of Mg(OH)(2) nanoplates and pseudomorphic dehydration to MgO[J].CrystEngComm,201530(30):5672-5679. |
| [5] | 崔洪梅;武晓峰;陈运法;唐文翔.反应温度和时间对纳米氧化镁形貌和结构的影响[J].人工晶体学报,2013(8):1601-1606. |
| [6] | Noriya Izu;Toshio Uchida;Ichiro Matsubara;Toshio Itoh;Woosuck Shin;Maiko Nishibori.Formation mechanism of monodispersed spherical core-shell ceria/polymer hybrid nanoparticles[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,20118(8):1168-1176. |
| [7] | Cui, Z.-M.;Chen, Z.;Cao, C.-Y.;Song, W.-G.;Jiang, L..Coating with mesoporous silica remarkably enhances the stability of the highly active yet fragile flower-like MgO catalyst for dimethyl carbonate synthesis[J].Chemical communications,201354(54):6093-6095. |
| [8] | 张文龙;徐景文;吉超;戴亚杰;赵洪;王暄.均匀沉淀法制备纳米MgO[J].哈尔滨理工大学学报,2010(6):112-115. |
| [9] | Keiko Sasaki;Sayo Moriyama.Effect of calcination temperature for magnesite on interaction of MgO-rich phases with boric acid[J].CERAMICS INTERNATIONAL,20141 Pt.B(1 Pt.B):1651-1660. |
| [10] | Carrasco, E.;Aumer, A.;Gomes, J.F.;Fujimori, Y.;Sterrer, M..Vibrational spectroscopic observation of ice dewetting on MgO(001)[J].Chemical communications,201339(39):4355-4357. |
| [11] | Marek Bryjak;Joanna Wolska;Iwona Soroko.Adsorption-membrane filtration process in boron removal from first stage seawater RO permeate[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,20091/3(1/3):127-132. |
| [12] | Kake Zhu;Juncheng Hu;Christian Kübel;Ryan Richards.Efficient Preparation and Catalytic Activity of MgO(111) Nanosheets[J].Angewandte Chemie,200643(43):7277-7281. |
| [13] | Shuifen Xie;Xiguang Han;Qin Kuang.Intense and wavelength-tunable photolumlnescence from surface functionalized MgO eanocrystal clusters[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201120(20):7263-7268. |
| [14] | Alexandre R. Bueno;Renata F.M. Oman;Paula M. Jardim.Kinetics of nanocrystalline MgO growth by the sol-gel combustion method[J].Microporous and mesoporous materials: The offical journal of the International Zeolite Association,2014:86-91. |
| [15] | Peixue Wang;Shimin Liu;Feng Zhou.Two-step synthesis of dimethyl carbonate from urea, ethylene glycol and methanol using acid-base bifunctional zinc-yttrium oxides[J].Fuel Processing Technology,2014:359-365. |
| [16] | Qin, Haiming;Tan, Xiaojian;Huang, Wuchao;Jiang, Jun;Jiang, Haochuan.Application of urea precipitation method in preparation of advanced ceramic powders[J].CERAMICS INTERNATIONAL,20159 Pt.B(9 Pt.B):11598-11604. |
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%