Facile synthesis of Ag3PO4/PPy/PANI ternary composites for efficient catalytic reduction of 4-nitrophenol and 2-nitroaniline
In this study, a series of Ag3PO4/PPy/PANI ternary composite catalysts were fabricated by adjusting the mixed solution of pyrrole and aniline with different volume ratios of 4:1, 3:2, 1:1, 2:3, and 1:4, and combining with the in-situ synthesis method. The synthesized Ag3PO4/PPy/PANI nanoparticles we...
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Published in | Colloids and surfaces. A, Physicochemical and engineering aspects Vol. 632; p. 127774 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
02.01.2022
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Subjects | |
Online Access | Get full text |
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Summary: | In this study, a series of Ag3PO4/PPy/PANI ternary composite catalysts were fabricated by adjusting the mixed solution of pyrrole and aniline with different volume ratios of 4:1, 3:2, 1:1, 2:3, and 1:4, and combining with the in-situ synthesis method. The synthesized Ag3PO4/PPy/PANI nanoparticles were examined by XRD, SEM, TEM and EDX, Raman spectroscopy. When the ratio of pyrrole and aniline is 1:1, the polymerized PPy/PANI acted as the supporting matrix to effectively immobilize and prevent the aggregation of Ag3PO4 nanoparticles. The catalytic performances of the Ag3PO4/PPy/PANI composites were confirmed for reduction of 2-nitroaniline (2-NA) and 4-nitrophenol (4-NP) in the presence of NaBH4 at room temperature by UV–vis spectroscopy. Results showed that the catalytic reduction effect of the Ag3PO4/PPy/PANI (1:1) on 2-NA is obviously better than that on 4-NP, which followed the pseudo-first-order kinetic, and the corresponding rate constants are 0.0053 min−1 and 0.022 min−1, respectively, indicating that it has potential application in wastewater treatment in industries.
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•Develop Ag3PO4/PPy/PANI ternary composite catalysts by in-situ synthesis.•Polymerized PPy/PANI acted as supporting matrix to effectively prevent Ag3PO4 aggregation .•Ag3PO4/PPy/PANI showed good catalytic reduction effect on 2-NA and 4-NP. |
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ISSN: | 0927-7757 1873-4359 |
DOI: | 10.1016/j.colsurfa.2021.127774 |