Institutional Repository of Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
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 | |
发表期刊 | APPLIED SURFACE SCIENCE
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ISSN | 0169-4332 |
摘要 | 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. |
关键词 | Layered double oxides Adsorption As(V) Mechanism |
DOI | 10.1016/j.apsusc.2018.04.162 |
关键词[WOS] | DOUBLE HYDROXIDES ; AQUEOUS-SOLUTION ; ADSORPTION ; WATER ; MECHANISM ; GRAPHENE ; CR(VI) ; ACID ; ADSORBENT ; MG/AL |
收录类别 | SCI |
语种 | 英语 |
资助项目 | CAS 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研究方向 | Chemistry ; Materials Science ; Physics |
WOS类目 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000432797100068 |
出版者 | ELSEVIER SCIENCE BV |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/36418 |
专题 | 中科院等离子体物理研究所 |
通讯作者 | Chen, Lei; Chen, Changlun |
作者单位 | 1.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 |
通讯作者单位 | 中科院等离子体物理研究所 |
推荐引用方式 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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