Zhijun CAO, Zaijun LI. Ruthenium-biocarbon Mimic Enzyme: Synthesis and Application in Colorimetric Detection of Pesticide Chlorpyrifos [J]. Journal of Inorganic Materials, 2022, 37(5): 554
- Journal of Inorganic Materials
- Vol. 37, Issue 5, 554 (2022)
1. SEM (A), TEM (B), HRTEM images (C), and elemental mappings of Ru (D) and N (E) elements and XRD pattern (F) of the as-prepared Ru-biomass carbon composite
2. Total XPS spectrum (A), high-resolution C1s (B), Ru3p (C) and N1s (D) XPS spectra of Ru-biomass carbon composite
3. Absorption spectra of the reaction system catalysis by Ru-biomass carbon composite (a), CuO/Pt composite (b), Ru nanoparticles (c), and biomass carbon (d)
4. Absorbances at 665 nm of the N2, air and O2 saturated TMB solutions with catalysis by Ru-biomass carbon composite
5. Relationship curves of pH (A), reaction time (B), reaction temperature (C), and catalyst amount (D) with the absorbance of the reaction system
6. Absorption spectra of the reaction system in the presence of 0, 10, 20, 30, 40, 50, 60, 70 and 80 ng/mL chlorpyrifos (A) and calibration plot of the absorbance at 665 nm varied with the chlorpyrifos concentration (B)
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Table 1. Comparison of colorimetric methods with different nanozyme materials for detection of organophosphorus pesticides
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Table 2. Results for detection of chlorpyrifos in peach (n =5)
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