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author:

Lin, Chunxiang (Lin, Chunxiang.) [1] (Scholars:林春香) | Weng, Yufang (Weng, Yufang.) [2] | Lin, Yule (Lin, Yule.) [3] | Liu, Yifan (Liu, Yifan.) [4] | Li, Xiaojuan (Li, Xiaojuan.) [5] (Scholars:李小娟) | Lv, Yuancai (Lv, Yuancai.) [6] (Scholars:吕源财) | Ye, Xiaoxia (Ye, Xiaoxia.) [7] (Scholars:叶晓霞) | Song, Liang (Song, Liang.) [8] (Scholars:宋梁) | Yang, Guifang (Yang, Guifang.) [9] | Liu, Minghua (Liu, Minghua.) [10]

Indexed by:

EI Scopus SCIE

Abstract:

Developing adsorbents with high performance and long service life for effective extracting the trace organochlorine pesticides (OCPs) from real water is attracting numerous attentions. Herein, a self-standing covalent organic framework (COF-TpPa) membrane with fiber morphology was successfully synthesized by using electrospun nanofiber membranes as template and employed as solid-phase microextraction (SPME) coating for ultra-high sensitivity extraction and analysis of trace OCPs in water. The as-synthesized COF-TpPa membrane exhibited a high specific surface area (800.83 m(2) g(-1)), stable nanofibrous structure, and excellent chemical and thermal stability. Based on the COF-TpPa membrane, a new SPME analytical method in conjunction with gas chromatography-mass spectrometry (GC-MS) was established. This proposed method possessed favorable linearity in concentration of 0.05-2000 ng L-1, high sensitivity with enrichment factors ranging from 2175 to 5846, low limits of detection (0.001-0.150 ng L-1), satisfactory precision (RSD < 10 %), and excellent repeatability (>150 cycles), which was better than most of the reported works. Additionally, the density functional theory (DFT) calculations and XPS results demonstrated that the outstanding enrichment performance of the COF-TpPa membrane was owing to synergistic effect of pi-pi stacking effects, high specific surface area and hydrogen bonding. This work will expect to extend the applications of COF membrane to captures trace organic pollutants in complex environmental water, as well as offer a multiscale interpretation for the design of effective adsorbents.

Keyword:

Covalent organic framework nanofibrous Direct immersion solid-phase microextraction Gas chromatography-mass spectrometry membrane Organochlorine pesticides

Community:

  • [ 1 ] [Lin, Chunxiang]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Weng, Yufang]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Liu, Yifan]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Li, Xiaojuan]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Lv, Yuancai]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 6 ] [Ye, Xiaoxia]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 7 ] [Song, Liang]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 8 ] [Liu, Minghua]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 9 ] [Lin, Yule]Fujian Normal Univ, Sch Geog Sci, Fuzhou 350007, Peoples R China
  • [ 10 ] [Yang, Guifang]Putian Univ, Fujian Prov Key Lab Ecol Toxicol Effects & Control, Putian 351100, Peoples R China

Reprint 's Address:

  • 吕源财

    [Lv, Yuancai]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Te, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China

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Source :

JOURNAL OF CHROMATOGRAPHY A

ISSN: 0021-9673

Year: 2024

Volume: 1721

4 . 1 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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