Hydrothermal preparation of nanocrystalline ZnO2--颗粒学报PARTICUOLOGY

Feng, G., Yang, L., Wang, T., Zhang, J., & Lou, T. (2012). Hydrothermal preparation of nanocrystalline ZnO2. Particuology, 10(3), 388–391. https://doi.org/10.1016/j.partic.2011.06.010

Hydrothermal preparation of nanocrystalline ZnO₂

Guipeng Feng ^a, Liyun Yang ^a *, Tianxi Wang ^b, Jiamin Zhang ^b, Tianjun Lou ^b

a Department of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang 453000, China
b School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China

10.1016/j.partic.2011.06.010

Volume 10, Issue 3, June 2012, Pages 388-391

Received 25 March 2011, Revised 7 June 2011, Accepted 16 June 2011, Available online 10 November 2011.

E-mail: liyunyang188@163.com

Highlights

Abstract

A green hydrothermal method was proposed for the synthesis of nanocrystalline ZnO₂, using Zn₅(CO₃)₂(OH)₆ powder and 6 vol% H₂O₂ aqueous solution as the starting materials. Characterization results from X-ray diffraction, Raman, high resolution transmission electron microscopy and selected area electron diffraction revealed that the products synthesized at 80–120 °C for 6–18 h were pure cubic phase ZnO₂ nanocrystals. Room temperature photoluminescence spectra of the as-synthesized ZnO₂ nanocrystals displayed a wide and strong emission band in the visible region of about 525–570 nm upon laser excitation at 325 nm, which may have originated from their surface state and other crystal defects.

Graphical abstract

Keywords

Zinc peroxide; Nanocrystals; Semiconductors; Hydrothermal synthesis; Photoluminescence

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