| 光谱学与光谱分析 |
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| Preparation and Spectra Analysis of Nano-ZnS |
| LI Ya-ling1,2,WANG Yu-hong2,Jimmy Yun3 |
1. Lab of Printing and Packaging Material and Technology, Beijing Area Major Lab, Beijing Institute of Graphic Communication, Beijing 102600, China
2. Research Center of the Ministry of Education for High Gravity Engineering and Technology; Beijing University of Chemical Technology, Beijing 100029, China
3. Nanomaterials Technology Pte. Ltd.，Singapore 049889, Singapore |
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Abstract The nano-zinc sulfide was prepared in RPBR (rotating packed bed reactor) using zinc nitrate and hydrogen sulfide as the raw materials. The size and morphology, crystal structure, composition and optical properties of the nano-zinc sulfide were analyzed by transmission electron microscopy(TEM), X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS), Fourier transform infrared spectrometry(FTIR), UV-visible spectrophotometer and energy dispersive X-ray detector(EDX). The results show that the nano-zinc sulfide particles are spherical and their average size is about 42 nm. The XRD pattern shows that the nano-zinc sulfide is in a good sphalerite crystal phase. The XPS spectra show that the binding energy of the S (2p) is 162.6 eV，while those of the Zn 2p3/2 and 2p1/2 are 1021.4 and 1 044.6 eV respectively. The IR spectrum shows that the nano-zinc sulfide has good transmittance within the wavelength number range from 400 to 4000 cm-1. The UV-Vis spectrum shows that the nano-zinc sulfide has strong absorption within the wavelength range from 200 to 340nm. The optical gap of the nano-zinc sulfide is 3.57eV by calculation. The EDX spectrum shows that the nano-zinc sulfide has high purity.
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Received: 2006-03-28
Accepted: 2006-06-28
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Corresponding Authors:
LI Ya-ling
E-mail: liyaling@bigc.edu.cn
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