Nanostructured Metal Oxide Semiconductors towards Greenhouse Gas Detection

Dadkhah, Mehran; Tulliani, Jean‐Marc

doi:10.3390/chemosensors10020057

Cited by 19 publications

(10 citation statements)

References 108 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ZnO nanoparticles present different semiconducting features as they possess high exciton bonding energy and a wide bandgap with 60 meV and 3.37 eV, respectively. These characteristics have made ZnO important to extensively apply as a gas sensing material in houses and industrial environments to detect toxic, dangerous, explosive, and greenhouse gases [148] and for air quality assessment. The ZnO NPs can have various morphologies such as nanoflower, nanorod, nanoflake, nanobelt, nanosheets, and nanowire.…”

Section: Zinc Oxide Nanoparticles (Zno Nps)mentioning

confidence: 99%

Green Synthesis of Metal Oxides Semiconductors for Gas Sensing Applications

Dadkhah

Tulliani

2022

Sensors

Self Cite

View full text Add to dashboard Cite

During recent decades, metal oxide semiconductors (MOS) have sparked more attention in various applications and industries due to their excellent sensing characteristics, thermal stability, abundance, and ease of synthesis. They are reliable and accurate for measuring and monitoring environmentally important toxic gases, such as NO2, NO, N2O, H2S, CO, NH3, CH4, SO2, and CO2. Compared to other sensing technologies, MOS sensors are lightweight, relatively inexpensive, robust, and have high material sensitivity with fast response times. Green nanotechnology is a developing branch of nanotechnology and aims to decrease the negative effects of the production and application of nanomaterials. For this purpose, organic solvents and chemical reagents are not used to prepare metal nanoparticles. On the contrary, the synthesis of metal or metal oxide nanoparticles is done by microorganisms, either from plant extracts or fungi, yeast, algae, and bacteria. Thus, this review aims at illustrating the possible green synthesis of different metal oxides such as ZnO, TiO2, CeO2, SnO2, In2O3, CuO, NiO, WO3, and Fe3O4, as well as metallic nanoparticles doping.

show abstract

Section: Zinc Oxide Nanoparticles (Zno Nps)mentioning

confidence: 99%

Green Synthesis of Metal Oxides Semiconductors for Gas Sensing Applications

Dadkhah

Tulliani

2022

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, nanostructured metal oxide semiconductors, such as TiO2, SnO2, ZnO, WO3, CuO, have been receiving considerable attention from researchers in applications of habitat improvement [8][9][10]. In particular, TiO2 was specific interested by scientists because of its advantages for a photocatalyst such as: high optical efficiency, good chemical stability, low cost and environmental friendliness [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Investigating for Photocatalytic Activity of Hybrid TiO2/Reduced Graphene Oxide and Application in Reducing VOCs

Thanh,

Danh,

Nguyen

et al. 2024

Bull. Chem. React. Eng. Catal.

View full text Add to dashboard Cite

In this study, rGO/TiO2 hybrid nanostructures (rGO : reduced Graphene Oxide) have been successfully fabricated for the purpose of application in the treatment of volatile organic compound (VOCs) that harmful for the environment through the method of directly measuring the change in concentration of decomposed VOCs in real time under UV-excited conditions using a home-made measuring system. the results showed that hybrids TiO2 : rGONFs (reduced Graphene Oxide nano flake) samples with the weight ratio between two kind of material are 99%:1% and 98%:2% which reduced VOCs faster than 2 time intrinsic TiO2. The phenomenon of 2D materials involved in the hybrids lead to the fact that the photocatalytic activity of TiO2 had been significantly improved, this can be explained as follows: When heterogeneous hybrid was formed, because of the difference in energy levels of conduction band between two materials was negligible, heterojunction barrier is not too high this made the photogenerated electrons from TiO2 easily move through rGONFs under UV stimulation. This thing has significantly reduced the recombination of the generated carrier in TiO2 during irradiation, which lead to an increase in the lifetime of the carrier and make photocatalytic reaction of the assembly become more effective. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

show abstract

“…In recent years, air pollution has become a serious public health concern in many countries around the world. Reduction and utilization of emitted gases/volatile organic compounds (VOCs) have had an increasing interest to prevent and solve the worst impacts on the natural environment, including global warming, climate change, and human health effects [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. One of the important keys to high efficient gas reduction and utilization is to capture or separate a target gas molecule from gas/VOCs mixtures such as separation of N 2 in ammonia plants [ 21 , 22 ], CO 2 separation in coal-fired power plants [ 23 , 24 ], removal of VOCs from O 2 /N 2 streams [ 25 ], or separation of toxic chemicals from H 2 O [ 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Structures, Electronic Properties, and Gas Permeability of 3D Pillared Silicon Carbide Nanostructures

2022

View full text Add to dashboard Cite

Silicon carbide (SiC) is recognized as excellent material for high power/temperature applications with a wide-band gap semiconductor. With different structures at the nanosize scale, SiC nanomaterials offer outstanding mechanical, physical, and chemical properties leading to a variety of applications. In this work, new 3D pillared SiC nanostructures have been designed and investigated based on self-consistent charge density functional tight-binding (SCC-DFTB) including Van der Waals dispersion corrections. The structural and electronic properties of 3D pillared SiC nanostructures with effects of diameters and pillar lengths have been studied and compared with 3D pillared graphene nanostructures. The permeability of small gas molecules including H2O, CO2, N2, NO, O2, and NO2 have been demonstrated with different orientations into the 3D pillared SiC nanostructures. The promising candidate of 3D pillared SiC nanostructures for gas molecule separation application at room temperature is highlighted.

show abstract

Nanostructured Metal Oxide Semiconductors towards Greenhouse Gas Detection

Cited by 19 publications

References 108 publications

Green Synthesis of Metal Oxides Semiconductors for Gas Sensing Applications

Green Synthesis of Metal Oxides Semiconductors for Gas Sensing Applications

Investigating for Photocatalytic Activity of Hybrid TiO2/Reduced Graphene Oxide and Application in Reducing VOCs

Structures, Electronic Properties, and Gas Permeability of 3D Pillared Silicon Carbide Nanostructures

Contact Info

Product

Resources

About