Electrical and gas sensing investigations on the sprayed ZnO:Cu thin films

Mhamdi, A.; AlKhalifah, M.S.; Rajeh, S.; Labidi, A.; Amlouk, M.; Belgacem, S.

doi:10.1016/j.physb.2017.06.069

Cited by 7 publications

(3 citation statements)

References 43 publications

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“…Conductometric sensors are generally based on the electrodes’ changes in resistance or current due to the mutual electronic interaction of the analysis substrates and the analyte. [ 146 ] Compared to traditional gas detection methods, the electrical approach has the advantages of rapid measurement, low cost, and high selectivity. [ 147 ] At present, many nanomaterials including conducting polymers, metal oxides, and novel carbon nanocomposites have been reported to be designed as sensing substrates for conductivity sensors.…”

Section: Carbon Dots‐based Sensors For Air Pollutants Detectionmentioning

confidence: 99%

Recent Progress of Carbon Dots for Air Pollutants Detection and Photocatalytic Removal: Synthesis, Modifications, and Applications

Zhao

et al. 2022

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Rapid industrialization has inevitably led to serious air pollution problems, thus it is urgent to develop detection and treatment technologies for qualitative and quantitative analysis and efficient removal of harmful pollutants. Notably, the employment of functional nanomaterials, in sensing and photocatalytic technologies, is promising to achieve efficient in situ detection and removal of gaseous pollutants. Among them, carbon dots (CDs) have shown significant potential due to their superior properties, such as controllable structures, easy surface modification, adjustable energy band, and excellent electron‐transfer capacities. Moreover, their environmentally friendly preparation and efficient capture of solar energy provide a green option for sustainably addressing environmental problems. Here, recent advances in the rational design of CDs‐based sensors and photocatalysts are highlighted. An overview of their applications in air pollutants detection and photocatalytic removal is presented, especially the diverse sensing and photocatalytic mechanisms of CDs are discussed. Finally, the challenges and perspectives are also provided, emphasizing the importance of synthetic mechanism investigation and rational design of structures.

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Section: Carbon Dots‐based Sensors For Air Pollutants Detectionmentioning

confidence: 99%

Recent Progress of Carbon Dots for Air Pollutants Detection and Photocatalytic Removal: Synthesis, Modifications, and Applications

Zhao

et al. 2022

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“…V + oxg + e À / Voxg + h + vB (7) The reaction between (h VB + ) with the adsorbed water (H 2 O) at the surface of the thin lms produces hydroxyl radicals (OHc)…”

Section: Mechanism Of Photocatalytic Degradationmentioning

confidence: 99%

“…6 These properties are quite favorable for optoelectronic applications, photovoltaic conversion, microelectronics, solar cells, gas sensing, light-emitting diodes (LEDs) and photodetectors. [7][8][9] ZnO shows potential for developing photocatalytic applications, namely, the decomposition of organic pollutants and harmful dyes in water. Additionally, ZnO gathers the requirements needed for this application since it is stable in nature and presents high electronic mobility.…”

Section: Introductionmentioning

confidence: 99%