Effect of thermal treatment temperature on catalytic performance of Pt/TiO<sub>2</sub> nanobelt composite for HCHO oxidation

CUI Wei-yi; WANG Xi-yue; TAN Nai-di

doi:10.1016/S1872-5813(21)60113-5

Volume 49 Issue 11

Nov. 2021

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Article Navigation > Journal of Fuel Chemistry and Technology > 2021 > 49(11): 1701-1708

CUI Wei-yi, WANG Xi-yue, TAN Nai-di. Effect of thermal treatment temperature on catalytic performance of Pt/TiO2 nanobelt composite for HCHO oxidation[J]. Journal of Fuel Chemistry and Technology, 2021, 49(11): 1701-1708. doi: 10.1016/S1872-5813(21)60113-5

Citation:

CUI Wei-yi, WANG Xi-yue, TAN Nai-di. Effect of thermal treatment temperature on catalytic performance of Pt/TiO₂ nanobelt composite for HCHO oxidation[J]. Journal of Fuel Chemistry and Technology, 2021, 49(11): 1701-1708. doi: 10.1016/S1872-5813(21)60113-5

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Effect of thermal treatment temperature on catalytic performance of Pt/TiO₂ nanobelt composite for HCHO oxidation

doi: 10.1016/S1872-5813(21)60113-5

CUI Wei-yi^{1, 2
,},
WANG Xi-yue²,
TAN Nai-di^{2
,
,}

1.
The Key Laboratory of Chemical Cleaner Production Technology of Jilin Province, Jilin Institute of Chemical Technology, Jilin 132022, China
2.
College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China

Funds: The project was supported by the National Natural Science Foundation of China (51805207) and 2021 Science and Technology Research and Planning Project of Education Department of Jilin Province (JJKH20210235KJ)

Received Date: 2021-03-26
Rev Recd Date: 2021-05-06

Available Online: 2021-06-12

Publish Date: 2021-11-30

Abstract

Abstract

TiO₂ nanobelts were prepared by hydrothermal synthesis and acid treatment, then calcination at different temperatures. And subsequently Pt nanoparticles were deposited on the TiO₂ nanobelts. Pt/TiO₂ catalytic properties were investigated in the oxidation of formaldehyde. These catalysts were characterized by various techniques and the characterization results showed that the applied thermal treatment temperature greatly influenced the phase composition and surface structure of TiO₂ nanobelts, as well as the number of oxygen vacancies and hydroxyl groups on the surface. The Pt/TiO₂ nanobelts thermally treated at 600 °C had more oxygen vacancies, which were conducive to the activation of adsorbed oxygen, formed more Ti-(OH)_x-Pt species, and showed higher catalytic activity. At 25 °C and relative humidity of 55%, the conversion of formaldehyde reached 91.6%.
- formaldehyde,
- phase structure,
- thermal treatment temperature,
- oxygen vacancies,
- catalytic oxidation

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References(32)

References

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