Facet control of Co-modified CeO<sub>2</sub> composite and its thermal-photocatalytic denitration property

MA Tian; ZHU Chen; LIU Chengbao; YU Chenchen; ZHANG Wenya; QIAN Junchao; CHEN Zhigang

doi:10.13801/j.cnki.fhclxb.20200323.001

Volume 37 Issue 9

Sep. 2020

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MA Tian, ZHU Chen, LIU Chengbao, et al. Facet control of Co-modified CeO2 composite and its thermal-photocatalytic denitration property[J]. Acta Materiae Compositae Sinica, 2020, 37(9): 2265-2271. doi: 10.13801/j.cnki.fhclxb.20200323.001

Citation:

MA Tian, ZHU Chen, LIU Chengbao, et al. Facet control of Co-modified CeO₂ composite and its thermal-photocatalytic denitration property[J]. Acta Materiae Compositae Sinica, 2020, 37(9): 2265-2271. doi: 10.13801/j.cnki.fhclxb.20200323.001

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Facet control of Co-modified CeO₂ composite and its thermal-photocatalytic denitration property

doi: 10.13801/j.cnki.fhclxb.20200323.001

Jiangsu Key Laboratory for Environment Functional Materials, School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

Received Date: 2019-10-16
Accepted Date: 2020-03-12

Available Online: 2020-03-23

Publish Date: 2020-09-15

Abstract

Abstract

The Co-modified CeO₂ composites with high active crystal planes were synthesized by simple one step hydrothermal method. The structure of Co-modified CeO₂ composites was characterized by specific surface area and porosity analyzer, TG-DSC, TEM, SEM, XRD, ultraviolet-visible spectrophotometer (UV-vis), XPS and photothermal catalytic denitration. The results show that as the amount of Co increases, the specific surface area of the Co-modified CeO₂ composites increases. The exposed high active surface is (200) and (220) crystal face, while the Co-modified CeO₂ composites mainly show rod-like structure; when the concentration of Co content precursor increases, CeO₂ has a nanorod structure, and the Co produces in the form of Co₃O₄ by chemical band connection with surface oxygen. The results of thermal-photocatalytic denitration test show that the catalytic efficiency of the Co-modified CeO₂ composites reaches 98% with 15% molar ratio of Co to Ce at 400℃ calcination temperature.
- Co,
- CeO₂,
- catalytic material,
- facet control,
- thermal-photocatalytic denitrification
Long Abstrsct
Innovation Points

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References(23)

References

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