Multifunctional flexible composite aerogels constructed through in-situ growth of metal-organic framework nanoparticles on bacterial cellulose

Ma, Xiaoting; Lou, Yue; Chen, Xiaobo; Shi, Zhan; Yan, Xu

doi:10.1016/j.cej.2018.09.034

Cited by 193 publications

(53 citation statements)

References 48 publications

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“…Since Küsgens et al [23] initially reported a monolithic MOF (Cu 3 (BTC) 2 , BTC = benzene tricarboxylate), their manufacturability and superiority have been given more attention compared with those of powder MOFs. To date, many advanced methods have been developed to synthesize monolithic MOFs, including direct synthesis from precursors [24], mechanical compression or extrusion [25], use of binders [26], sol-gel method [27], in situ combination with monolithic supports [28], and threedimensional (3D) printing technology [29]. Specific solvents and drying processes are usually required for the formation of the monolithic state when directly mixing the precursors [30].…”

Section: Introductionmentioning

confidence: 99%

“…Cordierite has become a preferred supporting monolith because of its low cost, low coefficient of thermal expansion, and improved mechanical properties [32]. In addition, carbon materials and silica monoliths are promising [28,46]. Some other techniques, such as paste extrusion [47] or the improved drying process [48], can be adopted based on the above methods to achieve excellent results, such as low cost, high porosity, high loading, and sufficient mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

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Recent advances in the synthesis of monolithic metal-organic frameworks

Duan

et al. 2021

Sci. China Mater.

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Although considerable achievements have been realized in recent years with respect to the syntheses of metalorganic frameworks (MOFs), majority of the developed MOFs are in the form of polydisperse microcrystalline powders, which cause dustiness, abrasion, and clogging and decrease pressure when used in industrial applications. Monolithic MOFs overcome these drawbacks and exhibit various promising characteristics. In this review, we present the recent advances associated with monolithic MOFs based on metal centers and a brief outline of the most prominent examples. Furthermore, the challenges and prospects associated with monolithic MOFs in terms of large-scale production and engineering applicability are analyzed based on our knowledge to conclude this review.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent advances in the synthesis of monolithic metal-organic frameworks

Duan

et al. 2021

Sci. China Mater.

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“…Cellulose-MOFs have thereby several advanced applications, for instance, drug delivery [40,41], carbon dioxide (CO2) adsorption [42], water remediation [43][44][45], thermal insulation, and fire retardancy [46]. Combining MOFs with cellulose offers significant processing flexibility, which is inherently limited for MOFs, using methods such as three-dimensional (3D) printing [40,47], freeze-drying [42], and sol-gel [48,49]. These methods can, among others, engineer cellulose-MOFs into scaffolds [40], elastic aerogels [46], foams [42],…”

Section: Introductionmentioning

confidence: 99%

CelloZIFPaper: Cellulose-ZIF Hybrid Paper for Heavy Metal Removal and Electrochemical Sensing

Abdelhamid

Georgouvelas

Edlund

et al. 2022

Preprint

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The processing of hierarchical porous zeolitic imidazolate frameworks (ZIF-8) into a cellulose paper using sheet former Rapid-Köthen (R.K.) is reported. The procedure is a promising route to overcome a significant bottleneck towards applying metal-organic frameworks (MOFs) in commercial products. ZIF-8 crystals were integrated into cellulose pulp (CP) or TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-oxidized cellulose nanofibrils (TOCNF) following an in-situ or ex-situ process; the materials were denoted as CelloZIFPaper_In Situ and CelloZIFPaper_Ex Situ. The materials were applied as adsorbents to remove heavy metals from water, with adsorption capacities of 66.2 - 354.0 mg/g. CelloZIFPaper can also be used as a stand-alone working electrode for the selective sensing of toxic heavy metals, for instance, lead ions (Pb2+), using electrochemical-based methods with a detection limit of 8 µM. The electrochemical measurements may advance 'Lab-on-CelloZIFPaper' technologies for label-free detection of Pb2+ ions.

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“…For example, Tang et al [12] reported a SAW humidity sensor on the ST-cut quartz substrate, exhibiting both good thermal stability and sensitivity. Bacterial cellulose (BC) is one of the emerging functional nanomaterials with important applications in biotechnology and materials science [13][14][15][16]. It is a filamentous and fibrous byproduct secreted by microorganisms such as acetobacters and agrobacteria [17,18].…”

Section: Introductionmentioning

confidence: 99%

Bacterial cellulose coated ST-cut quartz surface acoustic wave humidity sensor with high sensitivity, fast response and recovery

Wang

Guo

et al. 2020

Smart Mater. Struct.

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A Love mode surface acoustic wave (SAW) humidity sensor based on bacterial cellulose (BC) coated ST-cut quartz was developed in this study. The BC film is composed of ultrafine interwoven fibers to form a highly porous network, and its surface contains a large amount of hydroxyl groups, which significantly improve the adsorption capability of SAW sensing layer for water molecules. This results in significant mass loading effects and enhanced responsivity of the SAW sensor. The resonant frequency of the sensor changes linearly with RH at lower relative humidity (RH) values (e.g., RH30%), but when RH80%, an exponential increase in frequency shift as a function of RH is obtained due to the enhanced mass loading effect. A frequency shift of 89.8 kHz was measured using a sensor with a BC film with a thickness of 148 nm thick when the RH was increased from 30% to 93%. The frequency of the sensor can be fully shifted back to the original reading when the RH was returned back to 30%, with the response and recovery times of 12 s and 5 s, respectively.The SAW sensor also exhibits good short-term repeatability and long-term stability for humidity sensing.

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Multifunctional flexible composite aerogels constructed through in-situ growth of metal-organic framework nanoparticles on bacterial cellulose

Cited by 193 publications

References 48 publications

Recent advances in the synthesis of monolithic metal-organic frameworks

Recent advances in the synthesis of monolithic metal-organic frameworks

CelloZIFPaper: Cellulose-ZIF Hybrid Paper for Heavy Metal Removal and Electrochemical Sensing

Bacterial cellulose coated ST-cut quartz surface acoustic wave humidity sensor with high sensitivity, fast response and recovery

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