Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (06): 691-698.DOI: 10.6023/A1108301 Previous Articles     Next Articles

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微波辅助制备CdS 插层K2La2Ti3O10 复合物及其光催化制氢的性能

崔文权, 齐跃丽, 胡金山, 刘利, 梁英华   

  1. 河北联合大学化学工程学院 唐山 063009
  • 投稿日期:2011-08-30 修回日期:2011-12-15 发布日期:2012-04-01
  • 通讯作者: 梁英华
  • 基金资助:

    国家自然科学基金(Nos. 50972037, 51172063)、河北省教育厅科研计划(No. 2010130)和唐山市科技计划(No. 10140201c-6)资助项目.

Synthesis of CdS-pillared K2La2Ti3O10 Catalyst via a Microwave Assisted Process and Its Photocatalytic Property

Cui Wenquan, Qi Yueli, Hu Jinshan, Liu Li, Liang Yinghua   

  1. College of Chemical Engineering, Hebei United University, Tangshan 063009, China
  • Received:2011-08-30 Revised:2011-12-15 Published:2012-04-01
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 50972037, 51172063), the Research Project of Education Department of Hebei Province (No. 2010130) and the Research Project of Tangshan City (No. 10140201c-6).

CdS-pillared K2La2Ti3O10 photocatalysts were synthesized via ion-exchange reaction, butylamine pillaring and sulfuration processes under the assistance of the microwave irradiation. The structure of the photocatalysts was determined by means of powder X-ray diffraction (XRD), scanning electron microscope (SEM), and ultraviolet-visible diffuse reflection spectra (UV-Vis). The photocatalytic activities of these composite compounds for hydrogen production were also investigated under UV and visible light irradiation. The results revealed that the CdS-pillared K2La2Ti3O10 photocatalysts prepared under the assistance of microwave irradiation possess the similar crystal structures with that prepared via a traditional waterlogging method. At the same time, microwave irradiation can greatly decrease the preparation time, resulting in less destruction of the layered structure and improve the absorption for visible light. The photocatalytic activities for hydrogen production of the CdS-pillared K2La2Ti3O10 photocatalyst prepared via a microwave assisted procedure were 221.53 mmol/(g cat.) and 3.23 mmol/(g cat.) under UV light and visible light irradiation, respectively, after 3 h irradiation. At last, the photocatalysis mechanism was deduced.

Key words: microwave, intercalation, K2La2Ti3O10, CdS, photocatalysis