Citation: Yu-Ying BAI, Chun-Shui WANG, Jia-Hao LI, Xing-Xing LIU, Xiang-Feng CHU, Shi-Ming LIANG. La³⁺ doped CaFe₂O₄ materials: Preparation and detection of ultra-low concentrations of formaldehyde at room temperature[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(10): 1898-1904. doi: 10.11862/CJIC.2023.165 shu

La³⁺ doped CaFe₂O₄ materials: Preparation and detection of ultra-low concentrations of formaldehyde at room temperature

1.
School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, China
2.
School of Materials Science and Engineering, Linyi University, Linyi, Shandong 276005, China

Corresponding author: Xiang-Feng CHU, xfchu99@ahut.edu.cn Shi-Ming LIANG, lsmwind@163.com
Received Date: 14 April 2023
Revised Date: 13 June 2023

Figures(6)

La³⁺ doped CaCaFe₂O₄ materials have been synthesized by the electrospinning method. The structure and morphology of obtained samples were characterized by X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. Subsequently, the influence of the doping amount (mass fraction) of La³⁺ on the gas-sensing properties of CaFe₂O₄ was investigated. The results indicated that 3% La³⁺ doped CaCaFe₂O₄ materials exhibited the highest response value (R_a/R_g=14.1) to 100 μL·L^-1 formaldehyde at room temperature. More importantly, the detection limit was as low as 0.1 nL·L^-1, and the response/ recovery time only was 4.3 s/8.4 s.
- CaFe₂O₄,
- La³⁺ doping,
- formaldehyde,
- electrospinning
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

La3+ doped CaFe2O4 materials: Preparation and detection of ultra-low concentrations of formaldehyde at room temperature

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通讯作者: 陈斌, bchen63@163.com

La³⁺ doped CaFe₂O₄ materials: Preparation and detection of ultra-low concentrations of formaldehyde at room temperature