Wet chemical synthesis of Bi2S3 nanorods for efficient photocatalysis

Wet chemical synthesis of Bi2S3 nanorods for efficient photocatalysis
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用于高效光催化的 Bi2S3 纳米棒的湿化学合成

DOI:
10.1016/j.matlet.2013.04.006
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发表时间:
2013-08
期刊:
影响因子:
3
通讯作者:
Zhongzhi Sheng
Zhongzhi Sheng
中科院分区:
材料科学3区
文献类型:
--
作者:
Xinjun Wang;Xiaofang Peng;Mengdong He;Zhongzhi Sheng

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首次采用“绿色”湿化学法合成了沿沿着[001]方向生长的均匀Bi2S3纳米棒。提出了Bi2S3球生长过程的可能形成机制。通过场发射扫描电子显微镜、透射电子显微镜、高分辨透射电子显微镜和X射线衍射对催化剂进行了表征。该催化剂在可见光(>420nm)照射下对持久性有毒有机污染物的降解表现出高而稳定的光催化活性。更重要的是,这种合成方法对于放大工艺来说是经济的,并且还可以适用于制备用于催化和其他应用的其他金属硫化物半导体。
Uniform Bi2S3nanorods (NRs) growing along [001] have been synthesized for the first time by a “green” wet chemical route. A possible formation mechanism for the growth process of the Bi2S3spheres has been proposed. The prepared catalyst is characterized by field-emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction. The catalyst shows high and stable photocatalytic activity for the degradation of persistent toxic organic pollutants under visible (>420nm) light irradiation. More importantly, this synthesis method can be economical for a scale-up process, and may also be applicable to the preparation of other metal sulfides semiconductors for catalysis and other applications.
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