Tuning Coating Thickness of Iron Tetraphenyl Porphyrin on Single Walled Carbon Nanotubes by Annealing: Effect on Benzene Sensing Performance

Rushi, Arti; Datta, Kunal; Ghosh, P.; Mulchandani, Ashok; Shirsat, M.D.

doi:10.1002/pssa.201700956

Cited by 9 publications

(4 citation statements)

References 55 publications

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“…Table 1 lists benzene gas-sensing characteristics of Au-ZnO/WSe 2 and Au-ZnO/exfoliated WSe 2 composite sensors compared with previous studies. [45][46][47][48][49][50]58 The results show that the Au-ZnO/exfoliated WSe 2 sensor has the best sensing performance among the listed room-temperature benzene sensors, showing that it is a very effective method to detect benzene at room temperature.…”

Section: Resultsmentioning

confidence: 99%

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe₂ Nanosheets and Density Functional Theory Simulations

Zhang

Pan

Zhou

et al. 2021

ACS Appl. Mater. Interfaces

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A gold-doped zinc oxide (Au-ZnO)/exfoliated tungsten diselenide (exfoliated WSe2) nanocomposite-based gas sensor toward benzene with high sensing properties was demonstrated. Epoxy resin was used as the matrix of the Au-ZnO/exfoliated WSe2 nanocomposite sensor. The straw-shaped Au-ZnO was synthesized by the hydrothermal method, and WSe2 nanosheets (NSs) were prepared via hydrothermal and liquid-phase exfoliation methods. The properties of Au-ZnO/exfoliated WSe2 nanoheterostructures constructed by self-assembly technology have been confirmed via a series of characterization methods. The benzene-sensing performances of sensors were tested at 25 °C. Compared with Au-ZnO, WSe2, and their composites, the Au-ZnO/exfoliated WSe2 sensor has a significant performance improvement, including a higher response and linear fit degree, better selectivity and repeatability, and faster detection rate. The significantly enhanced sensing properties of the Au-ZnO/exfoliated WSe2 sensor can be ascribed to the doping of Au nanoparticles, the increase in the specific surface area and adsorption sites of NSs after exfoliation, and the cooperative interface combination of the ZnO/WSe2 heterojunction. Furthermore, the sensitivity mechanism of the composite sensor to benzene was explored by density functional theory simulations.

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Section: Resultsmentioning

confidence: 99%

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe₂ Nanosheets and Density Functional Theory Simulations

Zhang

Pan

Zhou

et al. 2021

ACS Appl. Mater. Interfaces

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“…Table compares the benzene-gas sensing properties of the ZnO/WS 2 film sensor with the other state-of-the-art benzene sensors. − The items of these sensors, in terms of fabrication method, detection range, working temperature, and response value, are listed and compared in Table . The comparative results demonstrate that the ZnO/WS 2 film sensor has a remarkable potential for room-temperature benzene detection.…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Nanoheterostructure of Tungsten Disulfide Nanoflowers Doped with Zinc Oxide Hollow Spheres: Benzene Gas Sensing Properties and First-Principles Study

Zhang

et al. 2019

ACS Appl. Mater. Interfaces

104

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This paper reports an original fabrication of a benzene gas sensor based on tungsten disulfide nanoflowers (WS2 NFs)/zinc oxide hollow spheres (ZnO HMDs) hierarchical nanoheterostructure. The ZnO/WS2 hierarchical composite was characterized for the inspection of its nanostructure, elementary composition, and surface morphology. The benzene-sensing properties of the ZnO/WS2 nanofilm sensor were exactly investigated. The results illustrate that the ZnO/WS2 sensor exhibits a remarkable sensing performance toward benzene gas, including good sensitivity, rapid detection, outstanding repeatability, and stability. This is attributed to the fact that the ZnO/WS2 nanoheterostructure can dramatically enhance the benzene sensing performance. Furthermore, density functional theory was employed to construct the benzene gas adsorption model for the ZnO/WS2 heterostructure, from which the determined parameters in geometry, energy, and charge provided a powerful support for the mechanism explanation. This work suggests that the ZnO/WS2 nanoheterostructure is competent to detect trace benzene gas at room temperature.

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“…Furthermore, Rushi et al studied the influence of post functionalization annealing in tuning the sensing properties of FeTPP functionalized/SWCNTs to benzene [41]. CO 2 H-SWCNTs were dielectrophoretically aligned to form framework that was non-covalently functionalized by FeTPP.…”

Section: Carbon Nanotubes@porphyrin Sensorsmentioning

confidence: 99%

Recent Advances in Chemical Sensors Using Porphyrin-Carbon Nanostructure Hybrid Materials

et al. 2021

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Porphyrins and carbon nanomaterials are among the most widely investigated and applied compounds, both offering multiple options to modulate their optical, electronic and magnetic properties by easy and well-established synthetic manipulations. Individually, they play a leading role in the development of efficient and robust chemical sensors, where they detect a plethora of analytes of practical relevance. But even more interesting, the merging of the peculiar features of these single components into hybrid nanostructures results in novel materials with amplified sensing properties exploitable in different application fields, covering the areas of health, food, environment and so on. In this contribution, we focused on recent examples reported in literature illustrating the integration of different carbon materials (i.e., graphene, nanotubes and carbon dots) and (metallo)porphyrins in heterostructures exploited in chemical sensors operating in liquid as well as gaseous phase, with particular focus on research performed in the last four years.

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Tuning Coating Thickness of Iron Tetraphenyl Porphyrin on Single Walled Carbon Nanotubes by Annealing: Effect on Benzene Sensing Performance

Cited by 9 publications

References 55 publications

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe₂ Nanosheets and Density Functional Theory Simulations

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe₂ Nanosheets and Density Functional Theory Simulations

Hierarchical Nanoheterostructure of Tungsten Disulfide Nanoflowers Doped with Zinc Oxide Hollow Spheres: Benzene Gas Sensing Properties and First-Principles Study

Recent Advances in Chemical Sensors Using Porphyrin-Carbon Nanostructure Hybrid Materials

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Tuning Coating Thickness of Iron Tetraphenyl Porphyrin on Single Walled Carbon Nanotubes by Annealing: Effect on Benzene Sensing Performance

Cited by 9 publications

References 55 publications

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe2 Nanosheets and Density Functional Theory Simulations

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe2 Nanosheets and Density Functional Theory Simulations

Hierarchical Nanoheterostructure of Tungsten Disulfide Nanoflowers Doped with Zinc Oxide Hollow Spheres: Benzene Gas Sensing Properties and First-Principles Study

Recent Advances in Chemical Sensors Using Porphyrin-Carbon Nanostructure Hybrid Materials

Contact Info

Product

Resources

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Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe₂ Nanosheets and Density Functional Theory Simulations

Room-Temperature Benzene Sensing with Au-Doped ZnO Nanorods/Exfoliated WSe₂ Nanosheets and Density Functional Theory Simulations