Photocatalytic hydrogen production over Na2Ti2O4(OH)2 nanotube sensitized by CdS nanoparticles

Photocatalytic hydrogen production over Na2Ti2O4(OH)2 nanotube sensitized by CdS nanoparticles
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CdS 纳米粒子敏化的 Na2Ti2O4(OH)2 纳米管光催化制氢

DOI:
10.1016/j.materresbull.2008.04.016
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发表时间:
2009-02
期刊:
Materials Research Bulletin, Published online, doi:10.1016/j.materresbull.2008.12.016, (SCI,EI,ISTP 收录)
影响因子:
--
通讯作者:
Xing Chanjuan
Xing Chanjuan
中科院分区:
其他
文献类型:
--
作者:
Guo Liejin;Jing Dengwei;LIu Maochang;Xing Chanjuan

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用浓NaOH溶液对TiO{sub 2}进行水热反应,得到Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2}纳米管。采用部分离子交换法将CdS纳米粒子修饰在Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2}纳米管上。采用x射线衍射(XRD)、紫外可见光谱(UV-vis)、透射电子显微镜(TEM)等对复合光催化剂进行了表征。结果表明,CdS纳米颗粒在Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2}纳米管表面被锚定。在可见光({lambda} {>=} 430 nm)照射下,制备的CdS/Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2}具有较高的产氢活性。
Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2} nanotubes were obtained by hydrothermal reaction of TiO{sub 2} with concentrated NaOH solution. CdS nanoparticles were then decorated on Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2} nanotubes through partial ion-exchange method. The composite photocatalysts were characterized by X-ray diffraction (XRD), ultraviolet-visible spectra (UV-vis), transmission electron microscope (TEM), etc. The results showed that CdS nanoparticles of 5-6 nm were anchored on the surface of the Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2} nanotubes. Under irradiation of visible light ({lambda} {>=} 430 nm), the prepared CdS/Na{sub 2}Ti{sub 2}O{sub 4}(OH){sub 2} showed high photoactivity for hydrogen production.
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发表时间: 2005-08
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