期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 144, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.inoche.2022.109870
关键词
Polymer microgels; Au nanoparticles; Catalytic activity; Catalytic degradation of dyes
资金
- HEC, Pakistan [20-3995/(NRPU)]
- PU, Lahore [D/72/EST.I]
- Deanship of Scientific Research (King Khalid University) [R.G.P.1/36/43]
Poly(styrene@N-isopropylmethacrylamide) microgel particles were prepared using seed facilitated free radical precipitation polymerization technique, and gold nanoparticles were integrated into the shell of the microgel particles to form a gold-P(ST@NPM) hybrid microgel system with excellent catalytic activity.
Poly(styrene@N-isopropylmethacrylamide) [P(ST@NPM)] microgel particles were produced by seed facilitated free radical precipitation polymerization technique and laterly gold (Au) nanoparticles (NPs) were integrated into the crosslinked polymeric network of shell of P(ST@NPM) core shell microgel particles to form gold-P (ST@NPM) hybrid microgel system by reduction of HAuCl4.3H(2)O within microgel dispersion. The synthesized microgel and hybrid microgel particles were characterized with FTIR, UV-Vis., DLS, TEM, and XRD methods. Then gold-P(ST@NPM) system was used as catalyst for reduction/degradation of rhodamine-B (RhB), congo red (CoR), methyl orange (MeO), eriochrome black T (ErBT), methylene blue (MeB), methyl red (MeR), and eosin (ES) dyes in the presence of NaBH4 at ambient temperature. Their reduction/degradation kinetics was also studied. Au-P(ST@NPM) was also applied as catalyst to reduce/degrade the wastewater sample containing various dyes to study the real application of the catalytic system. The Au-P(ST@NPM) is recyclable without any substantial loss of activity.
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