DOI: 10.1016/j.watres.2018.06.031
Scopus记录号: 2-s2.0-85049318865
论文题名: Efficient removal of nickel(II) from high salinity wastewater by a novel PAA/ZIF-8/PVDF hybrid ultrafiltration membrane
作者: Li T. ; Zhang W. ; Zhai S. ; Gao G. ; Ding J. ; Zhang W. ; Liu Y. ; Zhao X. ; Pan B. ; Lv L.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 143 起始页码: 87
结束页码: 98
语种: 英语
英文关键词: Electrostatic adsorption
; High salinity wastewater
; Hydrogen bonding adsorption
; Ni(II)
; PAA/ZIF-8/PVDF membrane
; Ultrafiltration
Scopus关键词: Chemicals removal (water treatment)
; Crystalline materials
; Electric fields
; Fluorine compounds
; Gas adsorption
; Heavy metals
; Hybrid materials
; Hydrogen bonds
; Membranes
; Metal ions
; Microfiltration
; Organometallics
; Polyvinylidene chlorides
; Sodium chloride
; Trace elements
; Ultrafiltration
; Wastewater treatment
; Water filtration
; Direct current electric fields
; Electrostatic adsorption
; High salinity wastewaters
; Hybrid ultrafiltration membranes
; Maximum contaminant levels
; Polyvinylidene fluoride membranes
; Specific hydrogen bondings
; Zeolitic imidazolate framework-8
; Nickel compounds
; carboxyl group
; metal organic framework
; nickel
; polyacrylic acid
; polyvinylidene fluoride
; sodium ion
; trimesoyl chloride
; unclassified drug
; adsorption
; chemical binding
; electric field
; heavy metal
; ion
; membrane
; nickel
; pollutant removal
; polymer
; salinity
; ultrafiltration
; wastewater
; wastewater treatment
; water flux
; adsorption
; Article
; chemical interaction
; electric field
; heavy metal removal
; hydrogen bond
; pH
; priority journal
; salinity
; surface property
; ultrafiltration
; waste water management
; water transport
; wettability
英文摘要: The development of highly efficient membranes, especially those aimed at the removal of trace (ppm, 10−6) heavy metals from high salinity wastewater, is one of the principal challenges in the wastewater treatment field. In this study, a new metal-organic frameworks-based hybrid ultrafiltration membrane (PAA/ZIF-8/PVDF membrane) was prepared, which outperformed some other adsorption materials and owned the first and highest reported nickel ion (Ni(II)) adsorption capacity (219.09 mg/g) in high salinity ([Na+] = 15000 mg/L) wastewater. Novel and highly efficient hybrid ultrafiltration membrane was facilely fabricated by physically immobilizing zeolitic imidazolate framework-8 (ZIF-8) particles onto the surface of trimesoyl chloride (TMC)-modified polyvinylidene fluoride (PVDF) membrane under the protection of polyacrylic acid (PAA) layer, and possessed a relatively high water flux of ∼460 L m−2h−1. The XPS studies revealed that the Ni(II) uptake was mainly attributed to the specific hydrogen bonding interaction between Ni(II) and hydroxyl on ZIF-8 frameworks as well as the electrostatic adsorption by carboxyl groups in PAA layer. Especially, compared to PAA, ZIF-8 could selectively bind with Ni(II) effectively, which was almost not affected by concentrated sodium ion. The filtration study showed that the membrane with an area of 12.56 cm2 could treat 5.76 L of Ni(II)-contained high salinity wastewater ([Ni(II) = 2 mg/L, [Na+] = 15000 mg/L) to meet the maximum contaminant level of 0.1 mg/L Ni(II). Moreover, the hybrid membrane can be regenerated several times by HCl-NaCl solution (pH = 5.5) for repeated use under direct current electric field. Thus, the newly developed ZIF-8 hybrid ultrafiltration membrane showed a promising potential for heavy metals containing wastewater treatment. This work provides a worthy reference for designing highly efficient ultrafiltration membranes modified by metal-organic frameworks. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112551
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Pollution Control and Resource Reuse, Research Center for Environmental Nanotechnology, School of the Environment, Nanjing University210023, China; State Environmental Protection Engineering Center for Organic Chemical Wastewater Treatment and Resource Reuse, Nanjing, 210046, China
Recommended Citation:
Li T.,Zhang W.,Zhai S.,et al. Efficient removal of nickel(II) from high salinity wastewater by a novel PAA/ZIF-8/PVDF hybrid ultrafiltration membrane[J]. Water Research,2018-01-01,143