| MoO3/TiO2-Al2O3对H2S吸附的XPS研究 |
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| 引用本文： | 罗胜成,桂琳琳,唐有祺.MoO3/TiO2-Al2O3对H2S吸附的XPS研究[J].物理化学学报,1996,12(4):341-345. |
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| 作者姓名： | 罗胜成 桂琳琳 唐有祺 |
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| 作者单位： | Institute of Physical Chemistry,Peking University,Beijing 100871 |
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| 摘 要： | 应用ＸＰＳ对ＭｏＯ３／ＴｉＯ２－Ａｌ２Ｏ３体系的ＭｏＯ３在ＴｉＯ２－Ａｌ２Ｏ３载体上的存在状态及其对Ｈ２Ｓ的吸附和脱附性能进行了表征，结果表明：ＭｏＯ３在ＴｉＯ２－Ａｌ２Ｏ３表面存在分散状态的不同，这导致了对Ｈ２Ｓ吸附性能的不同，在相同的条件下，吸附剂的０．１５ｇＭｏＯ３／ｇＴｉＯ２－Ａｌ２Ｏ３时具有最大载硫量，且随吸附温度的升高载硫量也增加，达饱和对Ｓ／Ｍｏ原子比接近１，较好的氧化脱附温度为１５
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| 关 键 词： | MoO3 TiO2-Al2O3 XPS H2S 吸附 |
| 收稿时间： | 1995-06-01 |
| 修稿时间： | 1995-12-29 |
The Characterisation of the Adsorption of H_2S on MoO_3/TiO_2-Al_2O_3 by XPS |
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| Luo Shengcheng, Gui Linlin, Tang Youqi.The Characterisation of the Adsorption of H_2S on MoO_3/TiO_2-Al_2O_3 by XPS[J].Acta Physico-Chimica Sinica,1996,12(4):341-345. |
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| Authors: | Luo Shengcheng Gui Linlin Tang Youqi |
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| Institution: | Institute of Physical Chemistry,Peking University,Beijing 100871 |
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| Abstract: | The adsorption of H2S on MoO3/TiO2-Al2O3 was investigated by XPS, along with the measurement of breakthrough curve. The results showed: the amount of adsorbed H2S for each gram of MoO3 varied with the loadings of MoO3, and approached a maximum when the loading was 0.15g/g TiO2-Al2O3; the adsorption capacity of 0.15g MoO3/g TiO2-Al2O3 increased when the adsorbent was heated from 100 to 300℃, with the atomic ratio of S to Mo rising to c.a. 1, the adsorbent of 0.15g MoO3/gTiO2-Al2O3 could be regenerated easily by oxidation with air during 150 to 250℃; the adsorption process might be a chemical reaction as pointed out by reference 1]: H2S+MoO3=MoO3?SH2 or H2S+MoO3=MoO2?S+H2O. |
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| Keywords: | MoO_3 TiO_2-Al_2O_3 H_2S XPS Adsorption |
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