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Your search keyword '"Tao, Fei‐Fei"' showing total 23 results
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23 results on '"Tao, Fei‐Fei"'

9. Boosted Inner Surface Charge Transfer in Perovskite Nanodots@Mesoporous Titania Frameworks for Efficient and Selective Photocatalytic CO2 Reduction to Methane.

Author

Sun, Qi‐Meng, Xu, Jing‐Jing, Tao, Fei‐Fei, Ye, Wen, Zhou, Chang, He, Jing‐Hui, and Lu, Jian‐Mei

Subjects
CHARGE transfer, SURFACE charges, PHOTOREDUCTION, KELVIN probe force microscopy, PEROVSKITE, DENSITY functional theory
Abstract

Exploring high‐efficiency and stable halide perovskite‐based photocatalysts for the selective reduction of CO2 to methane is a challenge because of the intrinsic photo‐ and chemical instability of halide perovskites. In this study, halide perovskites (Cs3Bi2Br9 and Cs2AgBiBr6) were grown in situ in mesoporous TiO2 frameworks for an efficient CO2 reduction. Benchmarked CH4 production rates of 32.9 and 24.2 μmol g−1 h−1 with selectivities of 88.7 % and 84.2 %, were achieved, respectively, which are better than most reported halide perovskite photocatalysts. Focused ion‐beam sliced‐imaging techniques were used to directly image the hyperdispersed perovskite nanodots confined in mesopores with tunable sizes ranging from 3.8 to 9.9 nm. In situ X‐ray photoelectronic spectroscopy and Kelvin probe force microscopy showed that the built‐in electric field between the perovskite nanodots and mesoporous titania channels efficiently promoted photo‐induced charge transfer. Density functional theory calculations indicate that the high methane selectivity was attributed to the Bi‐adsorption‐mediated hydrogenation of *CO to *HCO that dominates CO desorption. [ABSTRACT FROM AUTHOR]

Published
2022
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23. [A rapid nondestructive measurement method for assessing the total plate count on chilled pork surface].

Author

Tao FF, Wang W, Li YY, Peng YK, Wu JH, Shan JJ, and Zhang LL

Subjects
Animals, Cold Temperature, Swine, Meat analysis, Spectrum Analysis
Abstract

The present paper proposed a method based on the hyperspectral technology for rapidly, nondestructively quantify the total plate count on chilled pork surface. In the research, 50 chilled pork samples stored at 4 degrees C for 1-14 days were used to study the relationship between the total plate count on chilled pork surface and their hyperspectral images collected in 400-1 100 nm. Two models were established using MLR and PLSR methods, and the prediction showed that they can both give satisfactory results with R(v) = 0.886 and 0.863 respectively. The overall research demonstrates that the hyperspectral technology can well quantify the total plate count on chilled pork surface, and so indicates that it is a valid tool to assess the quality and safety properties of chilled pork in the future.

Published
2010

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