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Citation: Li Rong-Sheng, Yang Hua, Zhang Wu-Yang, Wei Quan. Investigation of the Behavior of Ammonium Sulfate on the Surface of TiO₂[J]. Acta Physico-Chimica Sinica, ;1993, 9(06): 819-822. doi: 10.3866/PKU.WHXB19930618 shu

Investigation of the Behavior of Ammonium Sulfate on the Surface of TiO₂

1.
Department of Chemistry, Jilin University, Changchun 130023; Testing Center, Jilin University, Changchun 130023

Received Date: 22 April 1992
Available Online: 15 December 1993

(NH_4)_2SO_4-TiO_2 have been treated at different temperatures. The samples obtained have been characteristized by IR and XPS as well as XRD. The results show that below 573 K there exists dispersion of ammonium sulfate on the surface of TiO_2, and there might be a decomposition of sulfate to some extent. The dispersion the sulfate ion may be favorable for the transformation from the isolated ion to the bidentatedly bound state. The latter may interact with Ti on the surface to form the surface S-Ti coordination complex. Above 573 K the S-Ti complex will decompose gradually as the treatment temperature es up further.
- Ammonium sulfate; Titanium oxide; Dispersion; Solid acid
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Investigation of the Behavior of Ammonium Sulfate on the Surface of TiO2

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通讯作者: 陈斌, bchen63@163.com

Investigation of the Behavior of Ammonium Sulfate on the Surface of TiO₂