| 李越湘.共沉淀-气固法合成Sm2Ti2S2O5催化剂及可见光制氢性能[J].分子催化,2011,(2):147-151 |
| 共沉淀-气固法合成Sm2Ti2S2O5催化剂及可见光制氢性能 |
| Preparation of Sm2Ti2S2O5 by a Coprecipitation-Gas Solid Reaction Method and its Performance for Photocatalytic Hydrogen Evolution under Visible Light Irradiation |
| 投稿时间：2011-04-03 修订日期：2011-04-05 |
| DOI： |
| 中文关键词: Sm2Ti2S2052 气固反应 共沉淀 可见光 制氢 |
| 英文关键词:Sm2Ti2S2O5 Gas solid reaction Coprecipitation Visible light Hydrogen generation |
| 基金项目: |
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| 中文摘要: |
| 用一种改进的共沉淀-气固反应法制备了Sm2Ti2S2O5光催化剂。通过紫外-可见（UV-Vis）漫反射、X射线衍射（XRD）对催化剂进行了表征。以甲酸为电子给体，考察了光催化剂在可见光照射下的制氢活性。研究结果表明，相对于传统的高温固相反应来说，用改进的共沉淀-气固反应法制备Sm2Ti2S2O5，能有效地降低反应温度，大大缩短反应时间，催化剂在可见光下具有放氢活性。 |
| 英文摘要: |
| The photocatalyst Sm2Ti2S2O5 was prepared by a modified coprecipitation-gas solid reaction method. The samples were characterized by X-ray diffraction and UV-Vis diffuse reflectance spectroscopy. The activity of the prepared photocatalyst under visible light irradiation was evaluated by photocatalytic hydrogen evolution from water using formic acid as electron donor. The results show that compared with traditional high temperature solid state reaction, the prepared method of Sm2Ti2S2O5 by a modified coprecipitation-gas solid reaction method can effectively reduce the reaction temperature and shorten reaction time. The prepared photocatalyst Sm2Ti2S2O5 had a activity for hydrogen evolution from water under visible light irradiation. |
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