以镍铝摩尔比为3∶1,尿素作为沉淀剂,采用均匀沉淀法制备了Ni2+-Al3+-CO2-3-LDHs层状材料。以Ni2+-Al3+-CO2-3-LDHs作为前驱体,分别与NaCl、钼酸钠( Na2 MoO4·2H2 O)进行离子交换反应,成功构建了Ni2+-Al3+-MoO2-4-LDHs防腐缓蚀剂。通过XRD、SEM、FT-IR、TG-DTG、ICP对样品进行了分析表征,研究结果表明MoO2-4插入LDHs层间,其层间距由0.769 nm增加到0.982 nm,样品晶相完整,并保持了良好的层状结构。
Using carbamide as precipitant, Ni2+-Al3+-CO2-3 -LDHs was prepared by homogeneous precipitation method when the Ni/Al molar ratis was 3∶1. Then the corrosion inhibitor of Ni2+-Al3+-MoO2-4 -LDHs was successfully constructed through ion exchange with NaCl and Na2 MoO4 · 2H2 O respectively using Ni2+-Al3+-CO2-3 -LDHs as precursor. The synthesized Ni2+-Al3+-MoO2-4 -LDHs were characterized by XRD, SEM, FT-IR, TG-DTG and ICP. The experimental results show that the basal spacing of the LDHs increases from 0. 769 nm to 0. 982 nm when the MoO2-4 anions insert to the layer space of Ni2+-Al3+-LDHs, which show well-crystalline structure and layered feature.
参考文献
| [1] | 陆军;Liu Xiaolei;史文颖;Wang Xinrui;卫敏;Duan Xue.水滑石类插层组装功能材料[J].石油化工,2008(6):539-547. |
| [2] | M. A. Deyab;S. S. Abd El-Rehim.Inhibitory effect of tungstate, molybdate and nitrite ions on the carbon steel pitting corrosion in alkaline formation water containing Cl{sup}- ion[J].Electrochimica Acta,20074(4):1754-1760. |
| [3] | Silva JWJ;Codaro EN;Nakazato RZ;Hein LRO.Influence of chromate, molybdate and tungstate on pit formation in chloride medium[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,20054(4):1117-1122. |
| [4] | Ma, X.;Li, H.;Zhu, G.;Kang, L.;Liu, Z.-H..Hydrothermal preparation and anion exchange of Co~(2+)-Ni~(2+)-Fe~(3+) CO_3~(2-) LDHs materials with well regular shape[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20101/3(1/3):71-75. |
| [5] | Zhaoping Liu;Renzhi Ma;Minoru Osada;Nobuo lyi;Yasuo Ebina.Synthesis,Anion Exchange,and Delamination of Co-Al Layered Double Hydroxide:Assembly of the Exfoliated Nanosheet/Polyanion Composite Films and Magneto-Optical Studies[J].Journal of the American Chemical Society,200614(14):4872-4880. |
| [6] | Nobuo Iyi;Taki Matsumoto;Yoshiro Kaneko;Kenji Kitamura.Deintercalation of Carbonate Ions from a Hydrotalcite-Like Compound:Enhanced Decarbonation Using Acid-Salt Mixed Solution[J].Chemistry of Materials,200415(15):2926-2932. |
| [7] | 曹根庭;薛继龙;夏盛杰;倪哲明.不同阴离子插层锌铝水滑石对亚甲基蓝的光催化性能[J].硅酸盐学报,2016(5):726-732. |
| [8] | 王焕英;赵蕊;张雅静;陈永秀.ICP-AES法测定水中重金属钼和硼的方法研究[J].北方环境,2013(3):104-106. |
| [9] | 王娜;仲剑初;王洪志.硼酸根插层的Ca-Al-LDHs的制备、表征和应用[J].无机盐工业,2016(1):25-27,48. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%