Nanostructured ZnO gas sensors obtained by green method and combustion technique

Goutham, Solleti; Kaur, Sukhpreet; Sadasivuni, Kishor Kumar; Bal, Jayanta Kumar; Jayarambabu, N.; Kumar, Devarai Santhosh; Rao, K. Venkateswara

doi:10.1016/j.mssp.2016.09.037

Cited by 65 publications

(18 citation statements)

References 23 publications

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“…Recently various synthesis techniques were utilized for fabrication of inorganic material nanoparticles such as thermal degradation method [8][9][10], hydrothermal method [11][12][13], sol-gel method [14][15][16], precipitation method [17][18][19], combustion synthesis [20][21][22], and microwave method [23][24][25]. Many inorganic oxides like zinc oxide, zirconium oxide, titanium oxide, stannic oxide and other oxides have considered as attractive photo-catalysts because of their high catalytic performance in the decomposition of organic materials like pesticides, dyes and detergents under sunlight and UV light irradiation [12,26,27].…”

Section: Introductionmentioning

confidence: 99%

Auto-combustion Fabrication and Optical Properties of Zinc Oxide Nanoparticles for Degradation of Reactive Red 195 and Methyl Orange Dyes

Ali

Ahmed

Amin

et al. 2021

J Inorg Organomet Polym

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We are pleased to submit the attached original research article entitled "Auto-combustion fabrication and optical properties of zinc oxide nanoparticles for degradation of reactive red 195 and methyl orange dyes" for consideration for publication as a research article Journal of Inorganic and Organometallic Polymers and Materials.In this manuscript, zinc oxide nanoparticles were synthesized using an auto-combustion technique with fuels (tartaric acid and citric acid) according to the rule of the combustion method. the obtained zinc oxide nanoparticles were studied using various tools such XRD, DRS, TEM and FTIR.The results of XRD confirmed that the formation of the hexagonal structure of the synthesized zinc oxide after calcination at 500 o C. The extracted data from XRD and TEM techniques showed that the crystallite size of the fabricated zinc oxide nanoparticles determined to be 24-39 nm. The direct band gap, lattice parameters, unit cell volume (V), the dislocation density (D) and the Zn-O bond length (L) of the synthesized zinc oxide were determined. The values of the lattice parameters (a and c), the ratio (c/a), unit cell volume (V) and Zn-O bond length (L) were determined and found in the range of 3.2333-

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Section: Introductionmentioning

confidence: 99%

Auto-combustion Fabrication and Optical Properties of Zinc Oxide Nanoparticles for Degradation of Reactive Red 195 and Methyl Orange Dyes

Ali

Ahmed

Amin

et al. 2021

J Inorg Organomet Polym

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show abstract

“…Among these semiconducting metal oxides, ZnO nanoparticles have received extensive attention due to their versatility in fabrication, which leads to unique morphological and structurally dependent physicochemical properties. In addition to that, ZnO also has an excellent anti-microbial activity [15][16][17] and other applications such as use in photocatalysis [18], gas sensors [19,20], and optoelectronics [21,22]. These biosynthesized ZnO nanoparticles exhibited equivalent properties as compared to those synthesized from the chemical and physical methods.…”

Section: Introductionmentioning

confidence: 99%

The Potential of Pandanus amaryllifolius Leaves Extract in Fabrication of Dense and Uniform ZnO Microrods

et al. 2020

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Zinc oxide (ZnO) micro and nanorods were successfully prepared using Pandanus amaryllifolius and hexamethylenetetramine (HMTA) separately as stabilizers using the solution immersion method. Two types of ZnO seed layer were prepared using the same pre-cursor with the different stabilizers. The fabricated ZnO microrods exhibit absorption at ~375 nm as revealed from the UV–Visible absorption spectrum, and this is comparable with ZnO nanorods synthesized using HMTA. X-ray diffraction (XRD) measurement displayed a sharp peak corresponding to the hexagonal wurtzite structure of ZnO microrods. Field emission scanning electron microscopy (FESEM) of ZnO microrods showed average diameter at approximately 500 nm compared to 70 nm of those synthesized from HMTA. A new finding is the ability of Pandanus amaryllifolius as a green stabilizer to grow a dense ZnO microrod structure with high crystallinity. Results reveal that both samples from different stabilizers during the preparation of the ZnO seed layer greatly improved the morphological and structural properties and optical absorption of ZnO. The main outcomes from this study will benefit optoelectronic application, such as in ultraviolet (UV) sensors.

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“…At present, the widely used gas sensor materials are ZnO and TiO 2 , which have good sensitivity to many gases such as ethanol, methane, hydrogen sulfide, carbon monoxide, etc. [4][5][6][7][8][9], semiconductors made of ZnO and TiO 2 . Gas sensors can be widely used in the monitoring of toxic gases in various fields of production and living.…”

Section: Introductionmentioning

confidence: 99%

Study on the Gas Sensitivity Properties of TiO2 Nanoparticles Modified by ZnO

Liu¹,

Zhang²,

Liu³

et al. 2020

dteees

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TiO 2 nanomaterials and ZnO doped TiO 2 nanomaterials were synthesized by sol-gel method. The gas sensing properties of ZnO-doped TiO 2 nanomaterials were investigated by using a parathermal gas sensor. Studies have shown that the responsiveness of ZnO-doped gas sensor to ethanol gas is increased from 80% to 87%, and the response recovery time is shortened to (1.5s, 1s). This method improves the gas sensitivity of the sensor.

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Nanostructured ZnO gas sensors obtained by green method and combustion technique

Cited by 65 publications

References 23 publications

Auto-combustion Fabrication and Optical Properties of Zinc Oxide Nanoparticles for Degradation of Reactive Red 195 and Methyl Orange Dyes

Auto-combustion Fabrication and Optical Properties of Zinc Oxide Nanoparticles for Degradation of Reactive Red 195 and Methyl Orange Dyes

The Potential of Pandanus amaryllifolius Leaves Extract in Fabrication of Dense and Uniform ZnO Microrods

Study on the Gas Sensitivity Properties of TiO2 Nanoparticles Modified by ZnO

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