Preparation, Characterization, and Optical, Electrochemical Property Research of CdS/PAM Nanocomposites

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• 作者：Yonghong Ni ; Hequn Hao ; Xiaofeng Cao ; Shao Su ; Yuzhong Zhang ; Xianwen Wei
• 刊名：Journal of Physical Chemistry B
• 出版年：2006
• 出版时间：September 7, 2006
• 年：2006
• 卷：110
• 期：35
• 页码：17347 - 17352
• 全文大小：286K
• 年卷期：v.110,no.35(September 7, 2006)
• ISSN：1520-5207

文摘

CdS/PAM nanocomposites have been successfully synthesized in situ via a ultrasound-assisted route underambient condition, employing CdCl₂ and Na₂S₂O₃ as Cd²⁺ and S^2- ion sources and acrylamide (AM) and(NH₄)₂S₂O₈ as organic monomers and initiating reagents, respectively. The results from X-ray powder diffraction(XRD) analysis and the IR spectrum of the final product showed the formation of CdS nanoparticles and thepolymerization of AM monomers. SEM observations showed that the CdS/PAM nanocomposites could filmon the quartz substrate and some holes in which many nanorods regularly arranged distributed on the film.The UV-vis absorption and PL spectra of CdS/PAM nanocomposites obviously differed from those of CdSnanoparticles prepared under the same conditions due to the presence of PAM. The electrochemical researchshowed that CdS/PAM nanocomposites had a stronger ability to promote electron transfers between Hb andthe Au electrode than CdS nanoparticles prepared under the same conditions. A possible formation mechanismwas also suggested based on the results of experiments.