A Mechanistic Study of Photoluminescence Quenching of Cetyl Trimethyl Ammonium Bromide Stabilized ZnS Nanoparticles with beta-Cyclodextrin

作者：Mehta Surinder K^*; Khushboo; Umar Ahmad; Kumar Sanjay

来源：Journal of Nanoscience and Nanotechnology, 2012, 12(3): 1760-1764.

DOI：10.1166/jnn.2012.5851

• ZnS Nanoparticles
• beta-CD
• Photoluminescence
• Quenching
• Electron Transfer
• CTAB

This paper reports a mechanistic study of photoluminescence (PL) quenching of cetyl trimethyl ammonium bromide (CTAB) stabilized ZnS nanoparticles (NPs) on surface modification with beta-cyclodextrin (beta-CD). The surface functionalization of NPs has been achieved due to the formation of inclusion complex between beta-CD and hydrophobic tail of CTAB. It has been observed that quenching takes place in the PL intensities of NPs on the addition of beta-CD. Therefore, an attempt has been made to understand mechanism for these quenching phenomena. The detailed studies reveal that the beta-CD causes PL quenching due to the electron transfer between NPs and beta-CD and aggregation of NPs.

• 出版日期2012-3