Journal ArticleDOI
Mesoporous Tyrosine Functionalized BTC-ZnO Composite for Highly Selective Capacitive CO Sensor
Aaryashree Aaryashree,Biswajit Mandal,Ankan Biswas,Ritesh Bhardwaj,Ajay Agarwal,Apurba K. Das,Shaibal Mukherjee +6 more
TLDR
In this paper, the performance of the mesoporous structures in room temperature gas sensing was studied for the CO concentration range of 5-300 ppm in synthetic air, and the improvement in the capacitance change, quicker response time, good linearity and reversibility was attributed to the synergistic effect between ZnO and tyrosine functionalized BTC.Abstract:
Drop-casting is a simple deposition technique where a slurry-like solution of nanomaterial is coated on small substrates, which are then allowed to dry under controlled temperature and pressure ambience. The present work focuses on the tyrosine functionalized benzene-tri-carboxyamide (Tyr-BTC) and ZnO composite based sensor deposited using drop-cast method for sensing carbon monoxide (CO) at room temperature. The composition of the composite surface was varied by altering the molar concentration of the constituents. The performance of the mesoporous structures in room temperature gas sensing was studied for the CO concentration range of 5–300 ppm in synthetic air. The highly amplified gas sensing response of approximately 94% at 300 ppm of CO by Tyr-BTC-ZnO in molar concentration 2:3 of Tyr-BTC-ZnO was observed. The improvement in the capacitance change, quicker response time, good linearity and reversibility was attributed to the synergistic effect between ZnO and tyrosine functionalized BTC.read more
Citations
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Photocatalytic Behaviour of Zinc Oxide Nanostructures on Surface Activation of Polymeric Fibres.
TL;DR: In this paper, the role of photocatalytic activity (role of photogenerated radical scavengers) of nano ZnO (nZnO) for surface activation of polymeric natural fibres especially cotton and their combined effect in photocatalysis applications is investigated.
Journal Article
Organo-di-benzoic-acidified ZnO Nanohybrids for Highly Selective Detection of CO at Low Temperature
Biswajit Mandal,Sayan Maiti,Aaryashree,Gaurav Siddharth,Mangal Das,Ajay Agarwal,Apurba K. Das,Shaibal Mukherjee +7 more
TL;DR: In this paper, a chemiresistive carbon monoxide (CO) gas sensor comprising of an organo-di-benzoic acidified zinc oxide (ODBA-ZnO) nanohybrid material is reported.
Journal ArticleDOI
DFT based Comparative Study of Pristine gCN and gCN-ZnO Composite as a Sensor for CO and CO2Gases
TL;DR: In this paper , the sensing behavior of pristine gCN and gCN-ZnO composite towards CO and CO2 gases has been analyzed using DFT, and the results revealed that the sensing performance of gCN is enhanced by incorporating ZnO.
Journal ArticleDOI
Green nanocomposite: fabrication, characterization, and photocatalytic application of vitamin C adduct-conjugated ZnO nanoparticles
TL;DR: In this article , a green and biodegradable vitamin C was employed in a facile and inexpensive procedure to synthesize the vitamin C adduct (3), which was then blended with green ZnONPs to fabricate a new composite category (ZnONP@vitaminC adduct), and the morphology and structural composition of the prepared ZnNPs and their composites were confirmed by several techniques: Fourier-transform infrared (FT-IR) spectroscopy, field-emission scanning electron microscopy (FE-SEM), UV-vis differential reflectance spectrograph (DRS), energy dispersive X-ray (EDX) analysis, elemental mapping, XRD analysis, photoluminescence (PL) spectrograms, and zeta potential measurements.
Journal ArticleDOI
Photocatalytic activity of ZnO under near-real conditions
TL;DR: In this article , the photocatalytic activity of ZnO decreases twice after four cycles of use without regeneration and remains equally high after complete regeneration, and the best results were obtained at the zinc oxide dose of 2.0 g per 2. 0 g of dye.
References
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Qingyuan Yang,Chongli Zhong +1 more
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