以AgNO3为前躯体,葡萄糖为还原剂,十六烷基三甲基溴化铵(CTAB)为络合剂和分散剂,一步法制备纳米银溶胶.利用紫外-可见光分光光度计(UV-Vis)、透射电子显微镜(TEM)和X射线衍射仪(XRD)对银溶胶的形成、颗粒尺寸形貌、稳定性和晶体结构进行了表征.结果表明,CTAB与Ag+和H+发生络合反应,稳定了H+,促进了葡萄糖对Ag+的还原;所制备银纳米粒子以球形为主,分散性良好,粒径分布范围为10~40nm,银浓度高达0.025 mol/L,室温条件下能够稳定5个月以上.
参考文献
[1] | Naodovic M;Yamamoto H .[J].Chemical Reviews,2008,108(08):3132. |
[2] | Narayanan R;El-Sayed M A .[J].Journal of Physical Chemistry B,2005,109(26):12663. |
[3] | AL-Thabaiti SA;Al-Nowaiser FM;Obaid AY;Al-Youbi AO;Khan Z .Formation and characterization of surfactant stabilized silver nanoparticles: A kinetic study[J].Colloids and Surfaces, B. Biointerfaces,2008(2):230-237. |
[4] | 孙道华,李清彪,何宁,黄加乐,王惠璇.生物法制备纳米银溶胶的稳定性[J].稀有金属材料与工程,2011(01):148-151. |
[5] | Sengupta S;Eavarone D;Capila I et al.[J].Nature,2005,436:568. |
[6] | Gao J;Fu J;Lin C et al.[J].Langmuir,2004,20(22):9775. |
[7] | Merga G;Wilson R;Lynn G;Milosavljevic BH;Meisel D .Redox catalysis on "Naked" silver nanoparticles[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(33):12220-12226. |
[8] | Pal T.;Jana NR.;Sau TK. .REVERSIBLE FORMATION AND DISSOLUTION OF SILVER NANOPARTICLES IN AQUEOUS SURFACTANT MEDIA[J].Langmuir: The ACS Journal of Surfaces and Colloids,1997(6):1481-1485. |
[9] | Sui Z;Chen X;Wang L et al.[J].Physica E,2006,33:308. |
[10] | Sharma, VK;Yngard, RA;Lin, Y .Silver nanoparticles: Green synthesis and their antimicrobial activities[J].Advances in colloid and interface science,2009(1/2):83-96. |
[11] | Petit C;Lixon P;Pileni M-P .[J].Journal of Physical Chemistry,1993,97(49):12974. |
[12] | Wang H;Qiao X;Chen J et al.[J].Materials Chemistry and Physics,2005,94:449. |
[13] | 杨生春,董守安,唐春,李品将.纳米Ag粒子与CN-反应的机制研究[J].稀有金属材料与工程,2005(08):1243-1246. |
[14] | Kreibig U;Vollmer M.Optical Properties of Metal Clusters[M].Beilin:Springer-Verlag,1995:1642171. |
[15] | 吴青松,赵岩,张彩碚.有机分子CTAB对银纳米颗粒形貌的影响[J].高等学校化学学报,2005(08):1405-1409. |
[16] | Chen S;Carroll D L .[J].JPhy Chem B,2004,108(182):5500. |
[17] | 于立国,张彦华.化学还原法制备片状纳米银粉[J].稀有金属材料与工程,2010(03):401-404. |
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%