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Annealing temperature effect on 3D hierarchically porous NiO/Ni for removal of trace hexavalent chromium
Wang, Zhifei1,3; Shen, Qianqian1,2; Xue, Jinbo1,2; Jia, Husheng1,3; Xu, Bingshe1,2; Liu, Xuguang1; Qi, Li4
Corresponding AuthorXue, Jinbo(xuejinbo@tyut.edu.cn) ; Jia, Husheng(jia_husheng@126.com)
2020-01-15
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
Volume240Pages:10
AbstractThree-dimensional (3D) hierarchically porous NiO/Ni composites were fabricated by hydrothermal method combined with subsequent annealing process. First, nickel hydroxide (Ni(OH)(2)) nanosheets were synthesized on flexible and porous nickel foam to form Ni(OH)(2)/Ni. Second, 3D porous nickel oxide (NiO) nanosheets grown on nickel substrate, named NiO/Ni, were obtained by thermal decomposition of Ni(OH)(2)/Ni in air at 400-650 degrees C for 3 h. The prepared samples were applied as adsorbents for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions and characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen adsorption and desorption to analyze their structures and compositions. NiO nanosheets grow on the 3D nickel foam provide more active sites and the large connected macropores are favorable to flow of solution. Numerous mesopores and micropores emerged on NiO nanosheets after thermal calcination, leading to high surface area favorable to adsorption of Cr(VI) ions. The results show that NiO/Ni annealed at 400 degrees C provides the maximum specific surface area (22 m(2)g(-1)) and best removal capacity (25.94 mg g(-1)) at pH 4 with excellent recyclling performance. The pseudo-first-order kinetic fitting suggests the physical adsorption of Cr(VI) on NiO/Ni surface and the possible adsorption mechanism was investigated. Moreover, the effect of contact time, initial concentration of Cr(VI), pH, and matrix anion were studied in detail.
KeywordFlexible basement Three dimensional hierarchical pore Hexavalent chromium Trace level Kinetic adsorption
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of Shanxi Province ; Key Research and Development Program of Shanxi province ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi ; Shanxi Provincial Key Innovative Research Team in Science and Technology ; Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipments ; Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province
DOI10.1016/j.matchemphys.2019.122140
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[21878257] ; Natural Science Foundation of China[51402209] ; Natural Science Foundation of China[21276220] ; Natural Science Foundation of Shanxi Province[201601D102020] ; Natural Science Foundation of Shanxi Province[201701D221083] ; Key Research and Development Program of Shanxi province[201603D121017] ; Key Research and Development Program of Shanxi province[201803D421079] ; Key Research and Development Program of Shanxi province[201803D31042] ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi[2016124] ; Shanxi Provincial Key Innovative Research Team in Science and Technology[201605D131045-10] ; Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipments ; Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000505100900053
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136349
Collection中国科学院金属研究所
Corresponding AuthorXue, Jinbo; Jia, Husheng
Affiliation1.Taiyuan Univ Technol, Minist Educ, Key Lab Interface Sci & Engn Adv Mat, Taiyuan 030024, Shanxi, Peoples R China
2.Taiyuan Univ Technol, Res Ctr Adv Mat Sci & Technol, Taiyuan 030024, Shanxi, Peoples R China
3.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zhifei,Shen, Qianqian,Xue, Jinbo,et al. Annealing temperature effect on 3D hierarchically porous NiO/Ni for removal of trace hexavalent chromium[J]. MATERIALS CHEMISTRY AND PHYSICS,2020,240:10.
APA Wang, Zhifei.,Shen, Qianqian.,Xue, Jinbo.,Jia, Husheng.,Xu, Bingshe.,...&Qi, Li.(2020).Annealing temperature effect on 3D hierarchically porous NiO/Ni for removal of trace hexavalent chromium.MATERIALS CHEMISTRY AND PHYSICS,240,10.
MLA Wang, Zhifei,et al."Annealing temperature effect on 3D hierarchically porous NiO/Ni for removal of trace hexavalent chromium".MATERIALS CHEMISTRY AND PHYSICS 240(2020):10.
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