{"title":"Synthesis, Characterization and PL Properties of Cds Nanoparticles Confined within a Functionalized SBA-15 Mesoprous","authors":"Azam Anaraki Firooz, Ali Reza Mahjoub, Reza Donyaei Ziba","volume":52,"journal":"International Journal of Nuclear and Quantum Engineering","pagesStart":271,"pagesEnd":274,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/7516","abstract":"
A simple and dexterous in situ method was introduced to load CdS nanocrystals into organofunctionalized mesoporous, which used an ion-exchange method. The products were extensively characterized by combined spectroscopic methods. X- ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) demonstrated both the maintenance of pore symmetry (space group p6mm) of SBA-15 and the presence of CdS nanocrystals with uniform sizes of about 6 - 8 nm inside the functionalized SBA-15 channels. These mesoporous silica-supported CdS composites showed room temperature photoluminescence properties with a blue shift, indicating the quantum size effect of nanocrystalline CdS.<\/p>\r\n","references":"[1] Beck J S, Vartuli J C, Roth W J, Leonowicz M E, Kresge C T, Schmitt\r\nK D, J. Am. Chem. Soc. 1992; 114: 10834- 10843.\r\n[2] Zhao D, Feng J, Huo Q, Melosh N, Fredrickson G H, Chmelka B F, et\r\nal., Science 1998; 279: 548- 552.\r\n[3] Vartuli J C, Kresge C T, Leonowicz M E, Chu A S, McCullen S B,\r\nJohnson I D, et al., Chem. Mater. 1994; 6: 2070- -2077.\r\n[4] Morishige K, Ito M, J. Chem. Phys. 2002; 117: 8036- 8041.\r\n[5] Pickett N L, Brien P O-, Chem. Rec. 2001; 1 : 467- 479.\r\n[6] Parala H, Winkler H, Kolbe M, Wohlfart A, Fischer R A, Schmechel R,\r\net al. , Adv. Mater. 2000; 12:1050-1055.\r\n[7] Zhou H J, Cai W P, Zhang L D, Mater. Res. Bull. 1999; 34 :845-849..\r\n[8] Chomski E, Dag O, Kuperman A, Coombs N, Ozin G A, Chem. Vap.\r\nDeposition 1996; 2 :8- 13.\r\n[9] Zhang W H, Shi J L, Chen H R, Hua Z L, Yan D S, Chem. Mater.\r\n2001; 13 :648- 654.\r\n[10] Wang S Z, Choi D, Yang S M, Adv. Mater. 2002;14: 1311- 1314.\r\n[11] ShanY , Gao L, Mat. Chem. Phys. 2005; 89 :412-416.\r\n[12] Marler B, Oberhagemann U, Vortmann S, Gies H, Microporous Mater.\r\n1996; 6 :375-383.\r\n[13] Chae W-S, Ko J-H, Hwang I-W, Kim Y-R, Chem. Phys.Lett. 2002;\r\n365:49- 56.\r\n[14] Pearson R G, Inorg.Chem. 1988; 27:734-740.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 52, 2011"}