兰州大学机构库
Immobilization of lead(II) and zinc(II) onto glomalin-related soil protein (GRSP): Adsorption properties and interaction mechanisms
Yuan, Bo1; Li, Hanyi1; Hong, Hualong1; Wang, Qiang1,2; Tian, Yuan1; Lu, Haoliang1; Liu, Jingchun1; Lin, Lujian1; Wu, Guirong4; Yan, Chongling1,3
2022-05-01
Online publication date2022-04
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN0147-6513
EISSN1090-2414
Volume236
page numbers10
AbstractGlomalin-related soil protein (GRSP), a microbial product that can be used as a bioflocculant, is critical to metal sequestration in the ecosystem. However, the relationship between GRSP and heavy metal has not been well explored. In this study, the adsorption behaviors and mechanisms of Pb(II) and Zn(II) ions on GRSP were investigated. Results reveal that the Pb(II) and Zn(II) adsorption closely conform to the pseudo second-order model, which indicates that the chemisorption of GRSP occurred after intra-particle diffusion. The adsorption process is influenced by the degree of pollution, pH value, GRSP content in the environment. In addition, scanning electron microscopy coupled with microanalysis (SEM-EDX) reveals that the surface structure of GRSP is irregularly blocky or flaky and metal ions are uniformly distributed on the surface of GRSP. Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) analysis show that the carboxyl and nitro groups on GRSP act as ligands to form complexes with two divalent metal ions. The interaction between GRSP and the metals is mainly surface complexation. This research further reveals the dynamic response of its structural components when GRSP sequestrates heavy metals in mangrove sediment and aqueous ecosystems, demonstrating a new perspective for the transport and transformation of heavy metals onto GRSP.
KeywordGlomalin-related soil protein Heavy metals Ecological function Chemisorption
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
DOI10.1016/j.ecoenv.2022.113489
Indexed BySCIE
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS SubjectEnvironmental Sciences ; Toxicology
WOS IDWOS:000793296100007
Original Document TypeArticle
PMID 35390691
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/483479
Collection兰州大学
Corresponding AuthorYan, Chongling
Affiliation
1.Xiamen Univ, Key Lab, Minist Educ Coastal & Wetland Ecosyst, Xiamen 361102, Fujian, Peoples R China;
2.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China;
3.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Fujian, Peoples R China;
4.Hezhou Univ, Coll Food & Biol Engn, Hezhou 542899, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Bo,Li, Hanyi,Hong, Hualong,et al. Immobilization of lead(II) and zinc(II) onto glomalin-related soil protein (GRSP): Adsorption properties and interaction mechanisms[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2022,236.
APA Yuan, Bo.,Li, Hanyi.,Hong, Hualong.,Wang, Qiang.,Tian, Yuan.,...&Yan, Chongling.(2022).Immobilization of lead(II) and zinc(II) onto glomalin-related soil protein (GRSP): Adsorption properties and interaction mechanisms.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,236.
MLA Yuan, Bo,et al."Immobilization of lead(II) and zinc(II) onto glomalin-related soil protein (GRSP): Adsorption properties and interaction mechanisms".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 236(2022).
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