{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Wan K"],"funding":["National Natural Science Foundation of China","Natural Science Foundation of Jiangsu Province"],"pagination":["7941-7950"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7992173"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["6(11)"],"pubmed_abstract":["Humic acid and l-cysteine-codecorated magnetic Fe3O4 nanoparticles (HA/LC-MNPs) were synthesized using a coprecipitation method. Humic acid fractions abundant with carboxyl and hydroxyl groups can be selectively coated on the surface of MNPs during synthesis. HA/LC-MNPs with abundant heteroatoms (N, S, and O) show excellent removal capacity, great selectivity, and also fast trapping of Hg2+ in a wide pH range. The adsorption capacity of HA/LC-MNPs for Hg2+ can reach 206.5 mg/g, and the chemisorption was attributed to the major adsorption form. In competitive adsorption, HA/LC-MNPs preferentially adsorbed Hg2+ with an affinity order of Hg2+ > > Pb2+ > Cu2+ ≫ Zn2+ > Cd2+. In total, 93.91% of Hg2+ can be quickly captured in the presence of a 6000 times higher concentration of competing metal ions (Pb2+, Cu2+, Cd2+, and Zn2+) within 30 min. The adsorption mechanism was analyzed using X-ray photoelectron spectroscopy (XPS). It suggested that the HA/LC-MNPs enhanced the adsorption capacity of Hg2+ because of the complexing abilities of the multiple thiol, amino, and carboxyl groups in sorbents with Hg2+, the ion exchange ability of the carboxyl group, and the negative charge surface. All in all, HA/LC-MNPs are a potentially useful and economic material for the selective removal of Hg2+ from polluted water."],"journal":["ACS omega"],"pubmed_title":["Preparation of Humic Acid/l-Cysteine-Codecorated Magnetic Fe3O4 Nanoparticles for Selective and Highly Efficient Adsorption of Mercury."],"pmcid":["PMC7992173"],"funding_grant_id":["BK20190629","52004280"],"pubmed_authors":["Xue S","Fan J","Xiao Y","Wan K","Wang G","Li L","Miao Z"],"additional_accession":[]},"is_claimable":false,"name":"Preparation of Humic Acid/l-Cysteine-Codecorated Magnetic Fe3O4 Nanoparticles for Selective and Highly Efficient Adsorption of Mercury.","description":"Humic acid and l-cysteine-codecorated magnetic Fe3O4 nanoparticles (HA/LC-MNPs) were synthesized using a coprecipitation method. Humic acid fractions abundant with carboxyl and hydroxyl groups can be selectively coated on the surface of MNPs during synthesis. HA/LC-MNPs with abundant heteroatoms (N, S, and O) show excellent removal capacity, great selectivity, and also fast trapping of Hg2+ in a wide pH range. The adsorption capacity of HA/LC-MNPs for Hg2+ can reach 206.5 mg/g, and the chemisorption was attributed to the major adsorption form. In competitive adsorption, HA/LC-MNPs preferentially adsorbed Hg2+ with an affinity order of Hg2+ > > Pb2+ > Cu2+ ≫ Zn2+ > Cd2+. In total, 93.91% of Hg2+ can be quickly captured in the presence of a 6000 times higher concentration of competing metal ions (Pb2+, Cu2+, Cd2+, and Zn2+) within 30 min. The adsorption mechanism was analyzed using X-ray photoelectron spectroscopy (XPS). It suggested that the HA/LC-MNPs enhanced the adsorption capacity of Hg2+ because of the complexing abilities of the multiple thiol, amino, and carboxyl groups in sorbents with Hg2+, the ion exchange ability of the carboxyl group, and the negative charge surface. All in all, HA/LC-MNPs are a potentially useful and economic material for the selective removal of Hg2+ from polluted water.","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Mar","modification":"2024-02-15T02:50:34.854Z","creation":"2022-02-09T14:18:36.753Z"},"accession":"S-EPMC7992173","cross_references":{"pubmed":["33778305"],"doi":["10.1021/acsomega.1c00583"]}}