Issue 5, 2012
From the journal:

Journal of Materials Chemistry

Zn2GeO4 crystal splitting toward sheaf-like, hyperbranched nanostructures and photocatalytic reduction of CO2 into CH4 under visible light after nitridation

Qi Liu,acd   Yong Zhou,*ab   Zhongping Tian,ab   Xiaoyu Chen,ac   Jun Gaoac  and  Zhigang Zou*abc  

* Corresponding authors

a Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, P. R. China
E-mail: zhouyong1999@nju.edu.cn
Fax: +86-25-83686632
Tel: +86-25-83686630

b School of Physics, Nanjing University, Nanjing, P. R. China
E-mail: zgzou@nju.edu.cn
Fax: +86-25-83686632
Tel: +86-25-83686630

c Department of Materials Science and Engineering, Nanjing University, Nanjing, P. R. China

d Anhui Polytechnic University, Wuhu, P. R. China

Abstract

Sheaf-like, hyperbranched Zn2GeO4 nanoarchitectures were successfully synthesized in a binary ethylenediamine (En)/water solvent system using a solvothermal route. These structures may be assigned to the splitting crystal growth mechanism, resembling some minerals observed in nature. Addition of increasing amounts of En was found to enhance the degree of crystal splitting. Nitridation of the resulting Zn2GeO4 superstructures under NH3 flow produced yellow Zn1.7GeN1.8O solid solution, which allows photocatalytically converse CO2 into hydrocarbon fuel (CH4) in the presence of H2O at ambient conditions under visible light irradiation.

Graphical abstract: Zn2GeO4 crystal splitting toward sheaf-like, hyperbranched nanostructures and photocatalytic reduction of CO2 into CH4 under visible light after nitridation

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Article information

DOI
https://doi.org/10.1039/C1JM14122H
Article type
Paper
Submitted
23 Aug 2011
Accepted
29 Oct 2011
First published
12 Dec 2011

J. Mater. Chem., 2012,22, 2033-2038

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Zn2GeO4 crystal splitting toward sheaf-like, hyperbranched nanostructures and photocatalytic reduction of CO2 into CH4 under visible light after nitridation

Q. Liu, Y. Zhou, Z. Tian, X. Chen, J. Gao and Z. Zou, J. Mater. Chem., 2012, 22, 2033 DOI: 10.1039/C1JM14122H

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