Catalytic oxidation of low concentration formaldehyde over Pt/TiO<sub>2</sub> catalyst

Yuan Su; Keming Ji; Jiayao Xun; Kan Zhang; Ping Liu; Liang Zhao

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Catalytic oxidation of low concentration formaldehyde over Pt/TiO₂ catalyst

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Catalytic oxidation of low concentration formaldehyde over Pt/TiO₂ catalyst
- Chinese Journal of Chemical Engineering Vol. 29, Issue 1, Pages: 190-195(2021)
- Affiliations：
  
  1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences,Taiyuan,China,030001
  2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum,Beijing,China,102249
- Author bio：
- Funds：
- DOI：
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- Published：2021
- Accepted：
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catalyst[J]. 中国化学工程学报, 2021, 29(1): 190-195.
DOI：

catalyst[J]. 中国化学工程学报, 2021, 29(1): 190-195. DOI：

摘要

Abstract

Formaldehyde (HCHO) is an important indoor pollutant. Catalytic oxidize low concentration HCHO is an effective way to eliminate indoor pollution. In this study

a series of Pt/TiO

catalysts are prepared by impregnation and reduced by NaBH

. The effects of loading amount of Pt and crystal type of TiO

on the physical and chemical properties and the catalytic performance in HCHO oxidation reaction are investigated. The results show that the quantity of active site and the oxygen vacancy of catalysts increased with increasing Pt content

which is beneficial to promote the further performance of catalysts. Nevertheless

with the further rises of Pt content

the specific surface area further decreases

and the proportion of Pt

species on the catalyst surface which is significant to catalytic properties also decreases

causing catalytic performance decreases. Compared with the catalyst supporting on rutile

the Pt/a-TiO

catalyst supporting on anatase has larger specific surface area

more Pt

phase and easier to form oxygen vacancy in the support

which cause better catalytic performance. The catalyst with Pt content o

f 0.1 wt% and supported by anatase TiO

has the best catalytic performance. The HCHO conversion efficiency reaches 98% and 100% at 50 ℃ and 100 ℃

and the stabilization time is longer than 140 h.

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Related Institution

College of Chemistry and Chemical Engineering, Taiyuan University of Technology

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Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University

⁰

Catalytic oxidation of low concentration formaldehyde over Pt/TiO2 catalyst

DOI：

摘要

Abstract

关键词

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Catalytic oxidation of low concentration formaldehyde over Pt/TiO₂ catalyst