biostudies-literatureLiu ZNatural Science Foundation of Jiangxi ProvinceNational Natural Science Foundation of China17524-17533https://www.ebi.ac.uk/biostudies/studies/S-EPMC9053619biostudies-literatureUnknown10(30)To enhance the ability to remove lead from water, polypyrrole modified magnetic Fe₃O₄/reduced graphene oxide composites (PPy-FG) were prepared <i>via in situ</i> polymerization and employed for the Pb(ii) adsorption. The physicochemical structure and adsorption mechanism of the prepared magnetic PPy-FG were studied <i>via</i> vibrating sample magnetometer, X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller analysis, and X-ray photoelectron spectroscopy. The effects of several factors on Pb(ii) adsorption were evaluated, including pH value, temperature, and competitive ions. Under the optimal conditions (pH 5 and 298 K), the maximum adsorption capacity of PPy-FG was 93.2 mg g^-1 giving an improvemeRSC advancesPolypyrrole modified magnetic reduced graphene oxide composites: synthesis, characterization and application for selective lead adsorption.PMC905361920171BAB20604751468016Xu LHu FLiu ZGao ZfalsePolypyrrole modified magnetic reduced graphene oxide composites: synthesis, characterization and application for selective lead adsorption.To enhance the ability to remove lead from water, polypyrrole modified magnetic Fe₃O₄/reduced graphene oxide composites (PPy-FG) were prepared <i>via in situ</i> polymerization and employed for the Pb(ii) adsorption. The physicochemical structure and adsorption mechanism of the prepared magnetic PPy-FG were studied <i>via</i> vibrating sample magnetometer, X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller analysis, and X-ray photoelectron spectroscopy. The effects of several factors on Pb(ii) adsorption were evaluated, including pH value, temperature, and competitive ions. Under the optimal conditions (pH 5 and 298 K), the maximum adsorption capacity of PPy-FG was 93.2 mg g^-1 giving an improveme2020-01-01T00:00:00Z2020 May2025-04-05T14:42:47.896Z2025-04-05T14:42:47.896ZS-EPMC90536193551563410.1039/d0ra01546f