Issue 20, 2013
From the journal:

CrystEngComm

One-pot synthesis, formation mechanism and near-infrared fluorescent properties of hollow and porous α-mercury sulfide

Shikui Wu,*ab   Chaojun Chen,*a   Xiaoping Shen,*b   Gang Li,a   Lina Gao,a   Amei Chen,a   Jinfeng Houd  and  Xingjie Liangc  

* Corresponding authors

a School of Pharmacy, Inner Mongolia Medical University, Hohhot, P. R. China
E-mail: shikuiwu@yahoo.com, chenchaojun@163.com
Fax: +86 0471 665 3172
Tel: +86 0471 665 3172

b School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
E-mail: xiaopingshen@163.com

c CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, P. R. China

d Testing and Analysis Center, Inner Mongolia University of Technology, Hohhot, P. R. China

Abstract

Hollow and porous nanoparticles of α-mercury sulfide (cinnabar) have been synthesized with thioacetamide and mercury nitrate as precursors via a one-pot wet chemistry process. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) show the presence of plate-like hollow particles with uniform diameters of 70 ± 10 nm and thicknesses of 20 ± 5 nm. Moreover, the plate-like hollow particles have porous surfaces with a pore size of 6 ± 3 nm. High-resolution TEM images show highly ordered lattice fringes, indicating the high crystallinity of the plates and identifying the product to be made of α-HgS. A possible mechanism related to anion exchange accompanied by the Kirkendall effect is suggested. The band gaps and near-infrared fluorescent properties of the plate-like hollow and porous α-HgS particles were also investigated, indicating their potential applications as a fluorescent dye in biomedical fields.

Graphical abstract: One-pot synthesis, formation mechanism and near-infrared fluorescent properties of hollow and porous α-mercury sulfide

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Article information

DOI
https://doi.org/10.1039/C3CE26777F
Article type
Paper
Submitted
30 Oct 2012
Accepted
16 Mar 2013
First published
21 Mar 2013

CrystEngComm, 2013,15, 4162-4166

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One-pot synthesis, formation mechanism and near-infrared fluorescent properties of hollow and porous α-mercury sulfide

S. Wu, C. Chen, X. Shen, G. Li, L. Gao, A. Chen, J. Hou and X. Liang, CrystEngComm, 2013, 15, 4162 DOI: 10.1039/C3CE26777F

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