biostudies-literatureFan LNatural Science Foundation of Hubei Province10561-10572https://www.ebi.ac.uk/biostudies/studies/S-EPMC9078926biostudies-literatureUnknown8(19)Fe₃O₄/MOF (metal organic framework)/l-cysteine was synthesized and applied for the removal of Cd(ii) from wastewater. The adsorption kinetics and isotherms were investigated, and the results indicated that the adsorption obeyed the pseudo-second-order kinetic model and Langmuir isotherm. The maximum adsorption capacity was calculated to be 248.24 mg g^-1. Fe₃O₄/MOF/l-cysteine was further applied to determine trace amounts of Cd(ii) in real water samples using ICP-AES (inductively coupled plasma-atomic emission spectroscopy) based on magnetic solid-phase extraction (MSPE). The determination limit was 10.6 ng mL^-1. Additionally, Fe₃O₄/MOF/l-cysteine can also be used as a fluorescent sensor for "turn-off" dRSC advancesA multifunctional composite Fe₃O₄/MOF/l-cysteine for removal, magnetic solid phase extraction and fluorescence sensing of Cd(ii).PMC90789262017CFB530Liu YLin CFan LHe MXu CDeng MShi ZWang YLi LXu ZfalseA multifunctional composite Fe₃O₄/MOF/l-cysteine for removal, magnetic solid phase extraction and fluorescence sensing of Cd(ii).Fe₃O₄/MOF (metal organic framework)/l-cysteine was synthesized and applied for the removal of Cd(ii) from wastewater. The adsorption kinetics and isotherms were investigated, and the results indicated that the adsorption obeyed the pseudo-second-order kinetic model and Langmuir isotherm. The maximum adsorption capacity was calculated to be 248.24 mg g^-1. Fe₃O₄/MOF/l-cysteine was further applied to determine trace amounts of Cd(ii) in real water samples using ICP-AES (inductively coupled plasma-atomic emission spectroscopy) based on magnetic solid-phase extraction (MSPE). The determination limit was 10.6 ng mL^-1. Additionally, Fe₃O₄/MOF/l-cysteine can also be used as a fluorescent sensor for "turn-off" d2018-01-01T00:00:00Z2018 Mar2025-04-27T01:05:13.57Z2024-11-20T10:19:29.556ZS-EPMC90789263554044010.1039/c8ra00070k