title: Highly active mesoporous ferrihydrite supported pt catalyst for formaldehyde removal at room temperature.
abstract: Ferrihydrite (Fh) supported Pt (Pt/Fh) catalyst was first prepared by combining microemulsion and NaBH4 reduction methods and investigated for room-temperature removal of formaldehyde (HCHO). It was found that the order of addition of Pt precursor and ferrihydrite in the preparation process has an important effect on the microstructure and performance of the catalyst. Pt/Fh was shown to be an efficient catalyst for complete oxidation of HCHO at room temperature, featuring higher activity than magnetite supported Pt (Pt/Fe3O4). Pt/Fh and Pt/Fe3O4 exhibited much higher catalytic activity than Pt supported over calcined Fh and TiO2. The abundance of surface hydroxyls, high Pt dispersion and excellent adsorption performance of Fh are responsible for superior catalytic activity and stability of the Pt/Fh catalyst. This work provides some indications into the design and fabrication of the cost-effective and environmentally benign catalysts with excellent adsorption and catalytic oxidation performances for HCHO removal at room temperature.
authors.affiliation: †State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China.|§Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, PR China.
authors.forename: Zhaoxiong
authors.initials: Z
authors.lastname: Yan
authors.affiliation: †State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China.|§Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, PR China.
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Xu
authors.affiliation: †State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China.|∥Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
authors.forename: Jiaguo
authors.initials: J
authors.lastname: Yu
authors.affiliation: ‡Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States.
authors.forename: Mietek
authors.initials: M
authors.lastname: Jaroniec
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D002384:Catalysis; D005290:Ferric Compounds / Q000737:chemistry*; D005557:Formaldehyde / Q000737:chemistry* / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry; D013696:Temperature
chemical_list: D000393:Air Pollutants; D005290:Ferric Compounds; D005557:Formaldehyde; D010984:Platinum; C092844:ferric oxyhydroxide