3.5 G PAMAM-Stabilized Au Nanoparticles Prepared by Microwave Irradiation

doi:10.7517/j.issn.1674-0475.2007.03.214

Abstract

Abstract: Using 3.5 G PAMAM as a stabilizing agent,Au nanoparticles were prepared by reducing HAuCl₄ with microwave irradiation.The influence of microwave irradiation at the same ratio of 3.5 G PAMAM to HAuCl₄ for the different time and at the different ratios of 3.5 G PAMAM to HAuCl₄ for the same time on Au nanoparticles’ size and shape was studied.Au nanoparticles were characterized by UV-Vis spectra and TEM.At the same ratio of 3.5 G PAMAM to HAuCl₄,the microwave irradiation time has a little influence on the Au nanoparticles’ size and shape,meanwhile more dispersed Au nanoparticles were obtained with the appropriate increase of reactive time.At the same irradiation time,bigger and more aggregative Au nanoparticles were acquired as the ratio of 3.5 G PAMAM to HAuCl₄ was decreased.

Key words: microwave irradiation, Au nanoparticles, 3.5 G PAMAM

CLC Number:

QIAO Yan, DU Ming-chun, YANG Ping, DU Yu-kou. 3.5 G PAMAM-Stabilized Au Nanoparticles Prepared by Microwave Irradiation[J]. Imaging Science and Photochemistry, 2007, 25(3): 214-222.

References

[1] Toshima N,Teranishi T,Asaauma H,et al.Platinum cluster catalysts supported on porous chelate resin-metal complexes:effect of resin porosity on catalytic activity[J].J.Phys.Chem.,1992,96:3796-3799.
[2] Du Y K,Xu J Z,Yang P,et al.Influence of 1-butanethiol and metal ions on hydrogenation of trans,trans-2,4-hexadienal at platinum nanocatalysts[J].Colloids and Surfaces A,2005,257-258:75-78.
[3] Du Y K,Xu J Z,Shen M,et al.Alkanethiol-stabilized decahedron of gold nanoparticles[J].Colloids and Surfaces A,2005,257-258:535-537.
[4] Fu X Y,Wang Y,Wu N Z,et al.Shape-selective preparation and properties of oxalate-stabilized Pt colloid[J].Langmuir,2002,18:4619-4624.
[5] 杨立平,涂伟霞.微波法合成纳米金胶体颗粒的调控研究.物理化学学报,2006,22(4):513-516.Yang L P,Tu W X.Studies on Au colloidal nanoparticles synthesized by microwave irradiation[J].Acta Phys-Chim Sin.,2006,22(4):513-516.
[6] Boxall D L,Lukehart C M.Rapid synthesis of Pt or Pd/carbon nanocomposites using microwave irradiation[J].Chem.Mater.,2001,13:806-810.
[7] Zhu J F,Zhu Y J.Microwave-assisted one-step synthesis of polyacrylamide-metal (m= Ag,Pt,Cu) nanocomposites in ethylene glycol[J].J.Phys.Chem.B,2006,110:8593-8597.
[8] Komarneni S,Li D S,Newalkar B,et al.Microwave-polyol process for Pt and Ag nanoparticles[J].Langmuir,2002,18:5959-5962.
[9] Tian Z Q,Jiang S P,Liang Y M,et al.Synthesis and characterization of platinum catalysts on multiwalled carbon nanotubes by intermittent microwave irradiation for fuel cell applications[J].J.Phys.Chem.B,2006,110:5343-5350.
[10] Shen M,Du Y K,Rong H L,et al.Preparation of hydrophobic gold nanoparticles with safe organic solvents by microwave irradiation method[J].Colloids and Surfaces A,2005,257:439-443.
[11] Tomalia D A,Baker H,Dewald J,et al.Dendritic macromolecules:Synthesis of starburst dendrimers[J].Macromolecules,1986,19(9):2466-2468.
[12] Newkome G R,Yao Z Q,Baker G R,et al.Cascade molecules:a new approach to micelles[J].J.Org.Chem.,1985,50:2003-2004.
[13] Jyotsna I,Kala F,Hammond P T.Synthesis and solution properties of new linear-dendritic diblock copolymers[J].Macromolecules,1998,31:8757-8765.
[14] Tomalia D A,Baker H,Dewald J,et al.A new class of polymers:Starburst-dendritic macromolecules[J].Polym.J.,1985,17(1):117-132.
[15] Crooks R M,Zhao M,Sun L,et al.Dendrimer-encapsulated metal nanoparticles:synthesis,charaterization,and applications to catalysis[J].Acc.Chem.Res.,2001,34(3):181-190.
[16] Scott R W J,Datye A K,Crooks R M.Bimetallic palladium dendrimer-encapsulated catalysts[J].J.Am.Chem.Soc.,2003,125(13):3708-3709.
[17] Tomalia D A,Naylor A M,Goddard W A,et al.Starburst dendrimers:molecular-level control of size,shape,surface chemistry,topology,and flexibility from atoms to macroscopic matter[J].Angew.Chem.Int.Ed.Engl.,1990,29:138-175.
[18] Kim J H,Lee T R.Thermo-and pH-responsive hydrogd-coated gold nanoparticles[J].Chem.Mater.,2004,16:3647-3651.
[19] Njoki P N,Luo J,Wang L Y,et al.Platinum-catalyzed synthesis of water-soluble gold-platinum nanoparticles[J].Langmuir,2005,21:1623-1628.
[20] Mafune F,Kondow T.Formation of small gold clusters in solution by laser excitation of interband transition[J].Chem.Phys.Lett.,2003,372:199-204.