Hydrothermal derived nitrogen doped SrTiO3 for efficient visible light driven photocatalytic reduction of chromium(VI).
Hydrothermal derived nitrogen doped SrTiO3 for efficient visible light driven photocatalytic reduction of chromium(VI).
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水热衍生的氮掺杂 SrTiO3 用于高效可见光驱动光催化还原铬 (VI)
DOI：
10.1186/s40064-016-2804-2
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Wang X
中科院分区：
文献类型：
--
作者：
Xing G;Zhao L;Sun T;Su Y;Wang X
在这项工作中，我们报告的氮掺杂SrTiO 3纳米粒子的合成与有效的可见光驱动的光催化活性对Cr（VI）的溶剂热法。采用X射线衍射、扫描电镜、透射电镜、紫外-可见漫反射光谱和光催化性能对样品进行了表征。 可见光吸收边和强度可以通过氮掺杂含量来调制，其吸收边延伸到约600 nm。此外，氮掺杂不仅可以调节光催化剂的可见光吸收特性，还可以提高光催化剂的电荷分离效率，从而提高光催化活性。通过氮掺杂控制SrTiO 3的粒径、Brunner-Emmet-Teller比表面积和电子结构，优化了氮掺杂SrTiO 3在六亚甲基四胺初始含量为2.
In this work, we report on the synthesis of nitrogen doped SrTiO3 nanoparticles with efficient visible light driven photocatalytic activity toward Cr(VI) by the solvothermal method. The samples are carefully characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV–Vis diffuse reflectance spectroscopy and photocatalytic test. The visible light absorption edge and intensity can be modulated by nitrogen doping content, which absorption edge extends to about 600 nm. Moreover, nitrogen doping can not only modulate the visible light absorption feature, but also have consequence on the enhancement of charge separation efficiency, which can promote the photocatalytic activity. With well controlled particle size, Brunner–Emmet–Teller surface area, and electronic structure via nitrogen doping, the photocatalytic performance toward Cr(VI) reduction of nitrogen doped SrTiO3 was optimized at initial hexamethylenetetramine content of 2.