Covalent triazine‐based frameworks/iron oxide for highly sensitive magnetic solid‐phase extraction of phenolic pollutants in water samples

Ma, Jin-Qing; Ren, Ji-Yun; Wang, Leilei; Wang, Xia; Lin, Jin‐Ming; Zhao, Ru-Song

doi:10.1002/jssc.201800630

Cited by 26 publications

(12 citation statements)

References 37 publications

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“…First, methyl orange was used as model molecule in order to characterize its adsorption properties, showing both high adsorption capacity and fast adsorption kinetics [110] . On a subsequent article, the composite was further applied for the magnetic solid‐phase extraction (MSPE) and subsequent recovery of phenols in real samples [111] …”

Section: Microwave‐assisted Synthesis Of 2d Cofsmentioning

confidence: 99%

“…[110] On a subsequent article, the composite was further applied for the magnetic solid-phase extraction (MSPE) and subsequent recovery of phenols in real samples. [111] Apart from iron oxide-containing materials, CTF-1 prepared with ZnCl 2 can serve also as support material for other active species. In particular, metal nanoparticles of rhodium, ruthenium, iridium, and platinum were directly synthesized and supported on the surface of a CTF-1 solid previously prepared under conventional conditions.…”

Section: Triazine-based Cofsmentioning

confidence: 99%

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Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

et al. 2020

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Covalent organic frameworks (COFs) are relatively recent materials. They have received great attention due to their interesting properties. However, the application of microwaves in their synthesis, despite its advantages such as faster and more reproducible processes, is a minority. Herein, a comprehensive compilation of the research results published in the microwave‐assisted synthesis (MAS) of COFs is presented. This review includes articles of 2D and 3D COFs prepared using microwaves as source of energy. The articles have been classified depending on the functional groups including boronate ester, imines, enamines, azines, and triazines, among others. It compiles the main parameters of synthesis and characteristics of the materials together with some general issues related with COFs and microwaves. Additionally, current and future perspectives of the topic have been discussed.

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Section: Microwave‐assisted Synthesis Of 2d Cofsmentioning

confidence: 99%

Section: Triazine-based Cofsmentioning

confidence: 99%

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

et al. 2020

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“…Since its introduction in 1990s, SPME has been developed and applied in many fields, such as environmental monitoring, food analysis, biochemical detection and so on . Various materials have been researched for improving the extraction performance of SPME, like carbon‐based adsorbents (carbon nanotube, graphene) , metal‐organic materials (metal‐organic nanotubes, metal‐organic frameworks) , metal‐based materials (metal nanoparticles, metallic oxide nanorods or nanotubes, bimetallic oxide nanosheets) , organic materials (ionic liquids, polymers, covalent organic frameworks, organic aerogels) , and other materials (silica aerogels, mesoporous materials) . Although these materials exhibited good extraction efficiency, complicated synthesized reaction or chemical functionalization were inevitable.…”

Section: Introductionmentioning

confidence: 99%

“…Since its introduction in 1990s, SPME has been developed and applied in many fields, such as environmental monitoring, food analysis, biochemical detection and so on [1]. Various materials have been researched for improving the extraction performance of SPME, like carbon-based adsorbents (carbon nanotube, graphene) [2][3][4], metal-organic materials Article Related Abbreviations: Ace, Acenaphthylene; Ana, Acenaphthene; Ant, Anthracene; DAD, Diode array detector; F E , Enrichment factor; FlA, Fluoranthene; Flu, Fluorene; Nap, Naphthalene; PAH, Polycyclic aromatic hydrocarbon; PEEK, Polyetheretherketone; Phe, Phenanthrene; Pyr, Pyrene (metal-organic nanotubes, metal-organic frameworks) [5][6][7][8], metal-based materials (metal nanoparticles, metallic oxide nanorods or nanotubes, bimetallic oxide nanosheets) [9][10][11][12][13][14][15][16][17][18], organic materials (ionic liquids, polymers, covalent organic frameworks, organic aerogels) [19][20][21][22][23][24][25][26], and other materials (silica aerogels, mesoporous materials) [27][28][29][30][31][32]. Although these materials exhibited good extraction efficiency, complicated synthesized reaction or chemical functionalization were inevitable.…”

Section: Introductionmentioning

confidence: 99%

A green extraction material — natural cotton fiber for in‐tube solid‐phase microextraction

Feng

Han

et al. 2019

J. Sep. Sci.

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Natural cotton fiber was applied as a green extraction material for in‐tube solid‐phase microextraction. Cotton fibers were characterized by scanning electron microscope. A bundle of cotton fibers (685 mg, 20 cm) was directly packed into a polyetheretherketone tube (i.d. 0.75 mm) to get the extraction device. It was connected into high performance liquid chromatography, building an online extraction and dectection system. Through the online analysis system, several polycyclic aromatic hydrocarbons were used as the targets to evaluate the extraction performace of the device. In order to get high extraction efficiency and sensitivity, the extraction and desorption conditions were optimized. Under the optimum conditions, the sensitive analysis method was established, and provided low limits of detection of 0.02 and 0.05 μg/L, good linearity ranges of 0.06–15 and 0.16–15 μg/L, as well as high enrichment factors of 176–1868. The method was applied to the online determination of trace polycyclic aromatic hydrocarbons in snow water and river water, and the relative recoveries corresponding to 2 and 5 μg/L were in the range of 80–116%. The repeatability of extraction and preparation of the device was investigated and the relative standard deviations (n = 3) were less than 3.6 and 5.2%.

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“…In addition, the MSPE method benefits from simple, rapid, low organic solvent consumption, and cost efficiency. Consequently, as a promising and attractive sample pretreatment method, MSPE has been widely used for the enrichment and purification of trace contaminants from environmental and food samples .…”

Section: Introductionmentioning

confidence: 99%

Magnetic mesoporous polyimide composite for efficient extraction of Rhodamine B in food samples

Cheng

et al. 2019

J of Separation Science

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A core-shell structured magnetic polyimide composite has been synthesized by the covalent coating of a mesoporous polyimide polymer onto the surface of magnetite nanoparticles. The nanocomposite was characterized by scanning electron microscopy, transmission electron microscopy, N 2 adsorption-desorption isotherms, X-ray diffraction, infrared spectroscopy, and vibrating sample magnetometry. The results showed that the prepared composite had a large surface area (306.45 m 2 /g), a unique pore size (2.15 nm), and strong magnetic properties (45.7 emμ/g), rendering it a promising sorbent material for magnetic solid-phase extraction. The parameters that affect the extraction efficiency of rhodamine B were optimized with the assistance of response surface methodology. Under the optimal conditions, the developed method has been successfully applied to determine the rhodamine B in food samples. The linearities and limits of detection of rhodamine B in hot pepper, red wine, and chili powder samples were measured. Satisfactory recoveries in the range of 94.8-103.3% with relative standard deviations <5.5% were obtained. Investigation of the adsorption mechanism of magnetic polyimide composite indicated that multiple interactions, including hydrophobic, π-π, and hydrogen bonding interactions, were involved in the adsorption process.

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Covalent triazine‐based frameworks/iron oxide for highly sensitive magnetic solid‐phase extraction of phenolic pollutants in water samples

Cited by 26 publications

References 37 publications

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

A green extraction material — natural cotton fiber for in‐tube solid‐phase microextraction

Magnetic mesoporous polyimide composite for efficient extraction of Rhodamine B in food samples

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