Facile synthesis of Zn2GeO4 nanorods toward improved photocatalytic reduction of CO2 into renewable hydrocarbon fuel

Facile synthesis of Zn2GeO4 nanorods toward improved photocatalytic reduction of CO2 into renewable hydrocarbon fuel
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Zn2GeO4 纳米棒的简便合成可改善 CO2 光催化还原为可再生碳氢化合物燃料

DOI:
10.1007/s11771-014-2248-1
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发表时间:
2014-07
影响因子:
4.4
通讯作者:
JIN Xiao-qi
JIN Xiao-qi
中科院分区:
材料科学3区
文献类型:
--
作者:
Yang Ming;JIN Xiao-qi

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采用表面活性剂辅助液相法制备了Zn 2GeO 4纳米棒。采用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、高分辨透射电子显微镜(HRTEM)、电感耦合等离子体原子发射光谱仪(ICP-AES)、紫外-可见漫反射光谱(UV-vis)和光致发光光谱(PL)等手段对产物进行了表征。探讨了Zn 2GeO 4纳米棒的形成机理。结果表明,CTA+离子优先吸附在Zn 2GeO 4纳米棒的表面,使其沿着c轴方向择优生长,形成长径比和比表面积较大的Zn 2GeO 4纳米棒,从而提高了其光催化还原CO2的活性。通过发射光谱研究了Zn 2GeO 4纳米棒的光致发光特性。
Zn2GeO4 nanorods were prepared by a surfactant-assisted solution phase route. The as-prepared products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), inductively coupled plasma atomic emission spectrometer (ICP-AES), UV-vis diffuse reflection spectroscopy and photoluminescence (PL) spectroscopy. The possible formation mechanism of Zn2GeO4 nanorods was discussed. It was supposed that the CTA+ cations preferentially adsorb on the planes of Zn2GeO4 nanorods, leading to preferential growth along the c-axis to form the Zn2GeO4 rods with larger aspect ratio and higher surface area, which showed the improved photocatalytic activity for photoreduction of CO2. The photoluminescence (PL) property of Zn2GeO4 nanorods was investigated through the emission spectra.
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