Plugged bifunctional periodic mesoporous organosilica as a high-performance solid phase microextraction coating for improving extraction efficiency of chlorophenols in different matrices

Mousavi, Kobra Zavar; Yamini, Yadollah; Karimi, Babak; Khataei, Mohammad Mahdi; Khorasani, Mojtaba; Seidi, Shahram; Ghaemmaghami, Mostafa

doi:10.1016/j.talanta.2021.122724

Cited by 16 publications

(3 citation statements)

References 37 publications

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“…Table 4 shows the data obtained in this study in comparison with the studies reported previously. It is showing that the analy-sis time in this study is clearly lower than the others; also, the lower or comparable LODs can be due to the number of functional groups of the extraction phase developed in this study [17,[31][32][33][34].…”

Section: Optimization Of the Effective Parameters On Extraction Effic...mentioning

confidence: 86%

Modified activated carbon derived from chestnut oak shells as a new sorbent for the needle‐trap extraction

Ehteshami¹,

Mohammadiazar

Haddad³

et al. 2022

J of Separation Science

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In this study, an acid-treated-activated carbon was prepared from chestnut oak shell carbonization followed by modification with hydrochloric acid/nitric acid and then used as a new sorbent for headspace needle-trap extraction of chlorophenol compounds from aqueous solutions. Different techniques, including scanning electron microscopy, nitrogen adsorption-desorption analysis, and Fourier transform-infrared spectroscopy were used for the characterization of the sorbents. The effects of some experimental parameters, including the temperature, pH, sorbent amount, and time of extraction were optimized. The developed method is fast and sensitive, providing low and sub ng/L detection limits. The limits of detection and quantification were in the range of 0.75-5 and 5-15 ng/ml, respectively, and the equilibrium time was 20 min. Wide linearity in the range of 15-2000 ng/L with R 2 > 0.9993 was obtained. Repeatability of the method was accessed at 50, 100, and 200 ng/L concentration levels and RSD% of 5%-12% was achieved. The introduced method was applied for analyzing real water samples containing spiked chlorophenols, and the relative recovery values were found to be in the range of 84%-99% at the concentration levels of 50, 100 and 200 ng/L.

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Section: Optimization Of the Effective Parameters On Extraction Effic...mentioning

confidence: 86%

Modified activated carbon derived from chestnut oak shells as a new sorbent for the needle‐trap extraction

Ehteshami¹,

Mohammadiazar

Haddad³

et al. 2022

J of Separation Science

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“…A plausible explanation for this phenomenon is a longer retention time of the benzaldehyde intermediate inside the plugged channel and thus an increased time of exposure to the catalytic environment leading to overoxidation of the benzaldehyde to benzoic acid. A bifunctional plugged PMO with mixed polar ionic liquid groups and hydrophobic ethyl functionalities was employed for the extraction of chlorophenol derivatives having different polarities [38] . It was suggested that the material possesses a balanced polarity and various types of non‐covalent interactions such as π‐π interactions (with the bridging ionic liquid), hydrophobic interactions (with bridging ethyl groups) and hydrogen bonds.…”

Section: Unconventional Pmosmentioning

confidence: 99%

“…A bifunctional plugged PMO with mixed polar ionic liquid groups and hydrophobic ethyl functionalities was employed for the extraction of chlorophenol derivatives having different polarities. [38] It was suggested that the material possesses a balanced polarity and various types of non-covalent interactions such as π-π interactions (with the bridging ionic liquid), hydrophobic interactions (with bridging ethyl groups) and hydrogen bonds. The plugs composed of amorphous silica with high concentration of silanol groups.…”

Section: Plugged Pmo Nanomaterialsmentioning

confidence: 99%

Periodic Mesoporous Organosilica Nanomaterials with Unconventional Structures and Properties

Vafaeezadeh

Thiel

2023

Chemistry A European J

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Periodic mesoporous organosilicas (PMOs) are high surface area organic‐inorganic hybrid nanomaterials that have found broad applications in various fields of research such as in (bio)chemistry or material science. By choosing suitable organic groups in the framework of these materials, their surface properties such as polarity, optical/electrical characteristics and adsorption capacity can be tuned. This critical review provides an overview of the current state of the art in the developments and applications of some PMO nanomaterials in diverse fields of research. This is placed in the context of four leading areas of PMO nanomaterials, including chiral PMOs, plugged PMO nanomaterials, Janus PMOs and PMO‐based nanomotors. The review briefly discusses the recent and key findings on these PMO nanomaterials as well as their potential applications for future developments.

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Mesoporous organosilicas with highly-content tyrosine framework as extractive phases for non-steroidal anti-inflammatory drugs in aquatic media

Zandian,

Balalaie,

Amiri

et al. 2024

Analytica Chimica Acta

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Plugged bifunctional periodic mesoporous organosilica as a high-performance solid phase microextraction coating for improving extraction efficiency of chlorophenols in different matrices

Cited by 16 publications

References 37 publications

Modified activated carbon derived from chestnut oak shells as a new sorbent for the needle‐trap extraction

Modified activated carbon derived from chestnut oak shells as a new sorbent for the needle‐trap extraction

Periodic Mesoporous Organosilica Nanomaterials with Unconventional Structures and Properties

Mesoporous organosilicas with highly-content tyrosine framework as extractive phases for non-steroidal anti-inflammatory drugs in aquatic media

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