Nanoporous MIL-101(Cr) as a sensing layer coated on a quartz crystal microbalance (QCM) nanosensor to detect volatile organic compounds (VOCs)

Haghighi, Elahe; Zeinali, Sedigheh

doi:10.1039/c9ra04152d

Cited by 80 publications

(41 citation statements)

References 67 publications

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“…The peaks at 1385 and 810 cm −1 correspond C–N stretching and bending of triazines ring in melamine, respectively. The C–H vibration peaks at 749 and 579 cm −1 are attributed to benzene ring of MIL‐101(Cr) [31] indicate the MIL‐101(Cr) was successfully modified on the foam.…”

Section: Resultsmentioning

confidence: 99%

A semi‐automatic solid phase extraction system based on MIL‐101(Cr) foam‐filled syringe for detection of triazines in vegetable oils

Jiang

Piao

et al. 2021

J of Separation Science

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In this study, several metal-organic framework-melamine foam columns were first developed and used as a laboratory-made semi-automatic solid phase extraction packed in syringe adsorber for the extraction of six triazine herbicides from vegetable oil samples coupled to high-performance liquid chromatographytandem mass spectrometry. The metal-organic framework-foam columns were prepared using a simple approach by embedding the solid particles in melamine foam using polyvinylidene difluoride physical encapsulation. The method was applicable to a wide variety of metal-organic framework materials, and the incorporated materials retained their unique properties. Key factors that affect the extraction efficiency, including the MIL-101(Cr) amount, sample flow rate, type and volume of the eluting solvent, and flow rate of eluting solvent, were investigated. Under optimum conditions, the proposed method exhibited low limits of detection (0.017-0.096 ng/mL, S/N = 3) for six triazines. The relative standard deviations calculated for all herbicides ranged from 0.2 to 14.9%. This study demonstrated that the MIL-101(Cr)-foam column can be used as a high-quality adsorption material for the detection of triazines in vegetable oils.

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Section: Resultsmentioning

confidence: 99%

A semi‐automatic solid phase extraction system based on MIL‐101(Cr) foam‐filled syringe for detection of triazines in vegetable oils

Jiang

Piao

et al. 2021

J of Separation Science

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“…Quartz crystal microbalance (QCM) sensors and piezoelectric sensors based on MOFs have been also developed for detection of small organic molecules (e.g., MeOH, EtOH, MeCN, Me 2 CO). For example, KAUST-7 (NbOFFIVE-1-Ni) and KAUST-8 (AlFFIVE-1-Ni) were used for a QCM sensor for SO 2 , a Cu-BTC/polyaniline nanocomposite for a QCM-based hydrogen sensor, and MIL-101(Cr) for a QCM-based pyridine sensor [ 162 , 163 , 164 ]. The MOF [Mn 5 (NH 2 bdc) 5 (bimb) 5 ]·(H 2 O) 0.5 (NH 2 bdcH 2 = 2-amino-1,4-benzene dicarboxylic acid, bimb = 4,4′-bis(1-imidazolyl)biphenyl) displays typical ferroelectric behavior, suggesting that MOFs can be potentially applied for the construction of piezoelectric sensors [ 165 ].…”

Section: Applications Of Mofsmentioning

confidence: 99%

Metal-Organic Frameworks: Synthetic Methods and Potential Applications

Raptopoulou

2021

Materials

125

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Metal-organic frameworks represent a porous class of materials that are build up from metal ions or oligonuclear metallic complexes and organic ligands. They can be considered as sub-class of coordination polymers and can be extended into one-dimension, two-dimensions, and three-dimensions. Depending on the size of the pores, MOFs are divided into nanoporous, mesoporous, and macroporous items. The latter two are usually amorphous. MOFs display high porosity, a large specific surface area, and high thermal stability due to the presence of coordination bonds. The pores can incorporate neutral molecules, such as solvent molecules, anions, and cations, depending on the overall charge of the MOF, gas molecules, and biomolecules. The structural diversity of the framework and the multifunctionality of the pores render this class of materials as candidates for a plethora of environmental and biomedical applications and also as catalysts, sensors, piezo/ferroelectric, thermoelectric, and magnetic materials. In the present review, the synthetic methods reported in the literature for preparing MOFs and their derived materials, and their potential applications in environment, energy, and biomedicine are discussed.

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“…Daha sonra, temizlenmiş olan QCM kristalinin yüzeyi K[4]MR çözeltisi ile damlatma yöntemi kullanılarak kaplandı ve çözücünün buharlaşması sağlanarak kristal yüzeyinde film oluşumu gerçekleştirildi (Şekil 2B). QCM sensör filminin kaplama frekansı, film oluşumu öncesi ve sonrasındaki oluşan frekans farkından 10 kHz olarak belirlendi [20]. Böylece, K[4]MR kaplı QCM sensörün benzen, toluen ve ksilen (BTK) gibi UOB'lere karşı algılama özelliği incelendi.…”

Section: Qcm Filmin Hazırlanmasıunclassified

p-ter-Bütilkaliks[4]aren İmmobilize Merrifield Reçinesinin BTK Buharlarına Karşı QCM Sensör Uygulamaları

Temel

2020

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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ÖzBu çalışmada, temel kaliks [4]aren bileşiği olan p-ter-bütilkaliks [4]aren bileşiğinin merrifield reçinesine immobilizasyonu gerçekleştirilerek polimerik kaliks[4]aren türevi (K[4]MR) elde edildi ve FT-IR ile karakterize edildi. Daha sonra, elde edilen polimerik kaliks [4]aren türevinin kloroform içerisinde çözeltisi hazırlanarak, Quartz Kristal Mikrobalance (QCM) kuvars kristaline damlatma yoluyla kaplandı. Hazırlanan sensörün, önemli Uçucu Organik Bileşiklerden (UOB) olan benzen, toluen ve ksilene (BTK) karşı frekans tepkileri ölçülerek, hassasiyet (sensitivity, S (Hz/ppm)), en düşük algılama limitleri (LOD (ppm)) gibi bir sensör için önemli olan özellikleri incelendi. Sonuçlara göre, LOD değerleri BTK buharları için sırasıyla 4,351, 2,090 ve 9,035 ppm olarak belirlendi ve insan sağlığı açısından kullanılabilirliği izin verilen maruz kalma limitleri (MKL) ve kısa süreli maruz kalma limitleri (KSMKL) ile karşılaştırıldı. Sonuç olarak, hem literatür bilgileri hem de yapılan bu çalışmanın sonuçları, kaliksaren türevlerinin kendisine özgü üç boyutlu yapısı sayesinde, UOB'lerin tespiti konusunda oldukça kullanışlı olabileceklerini gösterdi.

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Nanoporous MIL-101(Cr) as a sensing layer coated on a quartz crystal microbalance (QCM) nanosensor to detect volatile organic compounds (VOCs)

Abstract: Metal–organic frameworks can be used as sensing layer in QCM fabrication because of their huge surface area.

Cited by 80 publications

References 67 publications

A semi‐automatic solid phase extraction system based on MIL‐101(Cr) foam‐filled syringe for detection of triazines in vegetable oils

A semi‐automatic solid phase extraction system based on MIL‐101(Cr) foam‐filled syringe for detection of triazines in vegetable oils

Metal-Organic Frameworks: Synthetic Methods and Potential Applications

p-ter-Bütilkaliks[4]aren İmmobilize Merrifield Reçinesinin BTK Buharlarına Karşı QCM Sensör Uygulamaları

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