Facile aqueous synthesis, structural and luminescence properties for CdTe@FeOOH (Core/Shell)

被引:0
|
作者
El-Sadek, M. S. Abd [1 ,2 ]
Elnobi, Sahar [3 ]
Wasly, H. S. [4 ]
El-Sheshtawy, H. S. [5 ]
Abuelwafa, Amr Attia [6 ]
机构
[1] Galala Univ, Fac Sci, Phys Dept, Suez 43511, Egypt
[2] South Valley Univ, Fac Sci, Phys Dept, Nanomat Lab, Qena 83523, Egypt
[3] South Valley Univ, Fac Sci, Phys Dept, Qena 83523, Egypt
[4] Al Azhar Univ, Fac Engn, Min Met & Petr Eng Dep, Qena, Egypt
[5] Kafrelsheikh Univ, Fac Sci, Chem Dept, Kafr Al Sheikh, Egypt
[6] South Valley Univ, Fac Sci, Phys Dept, Nano & Thinfilm Lab, Qena 83523, Egypt
关键词
core/shell; CdTe; FeOOH; FT-IR; TEM; PL spectroscopy; QUANTUM DOTS; PROTECTION; SIZE;
D O I
10.1088/1402-4896/ad01f2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Seed-mediated growth, a straightforward technique with a low reaction temperature and low cost, was used to create multi-functional core/shell nanoparticles (CdTe@FeOOH). X-Ray Diffraction (XRD), High-resolution transmission electron microscopy (HTEM), Energy-dispersive x-ray (EDX), Fourier-transform infrared techniques (FT-IR), and Differential Thermal Analysis (DTA) were utilized to study the structure and composition of the as-prepared CdTe@FeOOH quantum dots (QDs). Photoluminescence (PL) properties of CdTe@FeOOH (Core/Shell) in an aqueous solution were studied by steady-state and time-resolved PL spectroscopy. The PL lifetime of CdTe@FeOOH QDs was reduced as a consequence of PL quenching. This results in the electron transfer mechanism being efficient, which reduces electron-hole recombination in the core-shell composite. The utilization of core-shell nanospheres of this nature presents numerous potentialities for applications in the field of photocatalysis.
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页数:11
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