Highly efficient removal of As(V) by using NiAl layered double oxide composites | |
Lv, Zhimin2; Yang, Shimin2; Zhu, Hongshan4; Chen, Lei2; Alharbi, Njud S.1; Wakeel, Muhammad3; Wahid, Abdul3; Chen, Changlun1,4 | |
刊名 | APPLIED SURFACE SCIENCE |
2018-08-01 | |
卷号 | 448期号:无页码:599-608 |
关键词 | Layered double oxides Adsorption As(V) Mechanism |
ISSN号 | 0169-4332 |
DOI | 10.1016/j.apsusc.2018.04.162 |
英文摘要 | 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. |
资助项目 | National Natural Science Foundation of China[21477133] ; CAS Key Laboratory of Photovoltaic and Energy Conservation Materials |
WOS关键词 | DOUBLE HYDROXIDES ; AQUEOUS-SOLUTION ; ADSORPTION ; WATER ; MECHANISM ; GRAPHENE ; CR(VI) ; ACID ; ADSORBENT ; MG/AL |
WOS研究方向 | Chemistry ; Materials Science ; Physics |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000432797100068 |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/36418] |
专题 | 合肥物质科学研究院_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.King Abdulaziz Univ, Fac Sci, Dept Biol Sci, Jeddah 21589, Saudi Arabia 2.Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Shandong, Peoples R China 3.Bahauddin Zakariya Univ, Dept Environm Sci, Multan 60800, Pakistan 4.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Anhui, Peoples R China |
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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