中文版 | English
Title

Self-supported trimetallic NiZnLa nanosheets on hierarchical porous graphene oxide-polymer composite fibers for enhanced phosphate removal from water

Author
Corresponding AuthorZheng,Chunmiao
Publication Years
2022-12-15
DOI
Source Title
ISSN
0021-9797
EISSN
1095-7103
Volume628Pages:807-818
Abstract
Phosphate-induced water eutrophication has attracted global attention. Fabricating adsorbents with both high phosphate adsorption affinity and accessible separation property is challenging. Herein, PG@NZL, a hierarchical nanocomposite fibrous membrane, was fabricated via in-situ growth of La-doped NiZn-LDH (NiZnLa) over electrospun graphene oxide-polymer composite fibers (PG). The porous surface of the PG fibers provided abundant anchor sites for the vertical self-supported growth of NiZnLa nanosheets, contributing to a high surface area. The La-doped NiZnLa trimetallic LDH achieved a much higher adsorption capacity than NiZn-LDH. The negative adsorption energy (-1.45 eV), calculated with DFT, confirmed its spontaneous adsorption potential for phosphate. Interestingly, the PG fibers contributed to oxygen vacancies and the metal center electronic structure evolution of NiZnLa, thus strengthening the coordination with phosphate. Mechanistic analysis revealed that the high adsorption capacity of PG@NZL is attributed to its superior anion exchange property, oxygen vacancies, and inner-sphere complexation. Therefore, the flexible and easily separated PG@NZL nanocomposite fibrous membrane is a promising adsorbent for effectively treating phosphate-bearing wastewater.
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
China Postdoctoral Science Foundation[2020 M682778] ; National Natural Science Foundation of China[41931292] ; Special Funding Project for Science and Technology Innovation Strategy of Guangdong Province[pdjh2021c0036] ; Shenzhen Science and Technology Innovation Committee["JSGG20210802153010033","JCYJ20200109141437586"]
WOS Research Area
Chemistry
WOS Subject
Chemistry, Physical
WOS Accession No
WOS:000863111600007
Publisher
EI Accession Number
20223512630530
EI Keywords
Adsorption ; Composite membranes ; Electrospinning ; Eutrophication ; Fibers ; Graphene ; Nanocomposites ; Nanosheets ; Oxygen vacancies ; Ternary alloys ; Wastewater treatment ; Zinc alloys
ESI Classification Code
Industrial Wastes Treatment and Disposal:452.4 ; Zinc and Alloys:546.3 ; Nanotechnology:761 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Fiber Chemistry and Processing:819.3 ; Solid State Physics:933 ; Crystalline Solids:933.1
ESI Research Field
CHEMISTRY
Scopus EID
2-s2.0-85136472128
Data Source
Scopus
Citation statistics
Cited Times [WOS]:6
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/394949
DepartmentSchool of Environmental Science and Engineering
工学院_海洋科学与工程系
Affiliation
1.State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science & Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory of Urban Water Resource and Environment (SKLUWRE),School of Environment,Harbin Institute of Technology,Harbin,150090,China
4.S.S. Papadopulos & Associates,Inc.,Rockville,20852,United States
5.EIT Institute for Advanced Study,Ningbo,Zhejiang,315200,China
First Author AffilicationSchool of Environmental Science and Engineering
Corresponding Author AffilicationSchool of Environmental Science and Engineering
First Author's First AffilicationSchool of Environmental Science and Engineering
Recommended Citation
GB/T 7714
Kong,Lingchao,Yan,Qinlin,Wang,Yi,et al. Self-supported trimetallic NiZnLa nanosheets on hierarchical porous graphene oxide-polymer composite fibers for enhanced phosphate removal from water[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,628:807-818.
APA
Kong,Lingchao,Yan,Qinlin,Wang,Yi,Wang,Qinyu,Andrews,Charles B.,&Zheng,Chunmiao.(2022).Self-supported trimetallic NiZnLa nanosheets on hierarchical porous graphene oxide-polymer composite fibers for enhanced phosphate removal from water.JOURNAL OF COLLOID AND INTERFACE SCIENCE,628,807-818.
MLA
Kong,Lingchao,et al."Self-supported trimetallic NiZnLa nanosheets on hierarchical porous graphene oxide-polymer composite fibers for enhanced phosphate removal from water".JOURNAL OF COLLOID AND INTERFACE SCIENCE 628(2022):807-818.
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