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Highly efficient removal of As(V) by using NiAl layered double oxide composites
Lv, Zhimin1; Yang, Shimin1; Zhu, Hongshan2; Chen, Lei1; Alharbi, Njud S.3; Wakeel, Muhammad4; Wahid, Abdul4; Chen, Changlun2,3
2018-08-01
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Abstract

The NiAl layered double hydroxides (NiAl-LDHs) as well as NiAl layered double oxides (NiAl-LDOT, T: 300, 400, 500, 600 degrees C) were successfully synthesized by hydrothermal process and calcination treatment, and served as adsorbents for the efficient uptake of arsenate (As(V)) from aqueous solutions. Batch experiments were carried out at various solution pH, original As(V) concentration, contact time and calcination temperature. It was found that As(V) adsorption capacity on these composites can be changed by controlling the calcination temperature, and followed the order NiAl-LDO500 (198.1 mg/g) > NiAl-LDO400 (180.9 mg/g) > NiAl-LDO300 (160.2 mg/g) > NiAl-LDO600 (121.4 mg/g) > NiAl-LDH (60.7 mg/g), which could be ascribed to abundant surface adsorption sites and a "memory effect" provided by "Ni-O or Al-O" bonds. The thermodynamic experiments revealed that the elimination of As(V) was spontaneous and endothermic. In addition, multiple characterizations and batch experiments have been carried out to prove the surface adsorption and intercalation by rebuilding of primary layered structure contributed to As(V) adsorption. This discovery can provide a new insight into the elimination of As(V) from wastewater for environmental remediation. (C) 2018 Elsevier B.V. All rights reserved.

KeywordLayered double oxides Adsorption As(V) Mechanism
DOI10.1016/j.apsusc.2018.04.162
WOS KeywordDOUBLE HYDROXIDES ; AQUEOUS-SOLUTION ; ADSORPTION ; WATER ; MECHANISM ; GRAPHENE ; CR(VI) ; ACID ; ADSORBENT ; MG/AL
Indexed BySCI
Language英语
Funding ProjectCAS Key Laboratory of Photovoltaic and Energy Conservation Materials ; National Natural Science Foundation of China[21477133] ; National Natural Science Foundation of China[21477133] ; CAS Key Laboratory of Photovoltaic and Energy Conservation Materials
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000432797100068
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/36418
Collection中科院等离子体物理研究所
Corresponding AuthorChen, Lei; Chen, Changlun
Affiliation1.Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Anhui, Peoples R China
3.King Abdulaziz Univ, Fac Sci, Dept Biol Sci, Jeddah 21589, Saudi Arabia
4.Bahauddin Zakariya Univ, Dept Environm Sci, Multan 60800, Pakistan
Corresponding Author AffilicationChinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Lv, Zhimin,Yang, Shimin,Zhu, Hongshan,et al. Highly efficient removal of As(V) by using NiAl layered double oxide composites[J]. APPLIED SURFACE SCIENCE,2018,448(无):599-608.
APA Lv, Zhimin.,Yang, Shimin.,Zhu, Hongshan.,Chen, Lei.,Alharbi, Njud S..,...&Chen, Changlun.(2018).Highly efficient removal of As(V) by using NiAl layered double oxide composites.APPLIED SURFACE SCIENCE,448(无),599-608.
MLA Lv, Zhimin,et al."Highly efficient removal of As(V) by using NiAl layered double oxide composites".APPLIED SURFACE SCIENCE 448.无(2018):599-608.
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