Broad-class volatile organic compounds (VOCs) detection via polyaniline/zinc oxide (PANI/ZnO) composite materials as gas sensor application

Foronda, Juanito Raphael F.; Aryaswara, Lugas Gada; Santos, Gil Nonato C.; Raghu, Swathi Naidu Vakamulla; Muflikhun, Muhammad Akhsin

doi:10.1016/j.heliyon.2023.e13544

Cited by 20 publications

(8 citation statements)

References 44 publications

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“…4 (b) which represents that the precursor is not contaminated [51]. The results indicate that there is an excess of oxygen, which may be surface adsorbed oxygen [52]. The intense peaks appear at 0.1 keV are the characteristics of the Lα transition occurring from the M shell to L shell (n = 3→2) of the chlorine element.…”

Section: Edxmentioning

confidence: 92%

CuO/PANI nanocomposites: An efficient catalyst for degradation and reduction of pollutants

Ammara,

Noreen,

Ali

et al. 2024

Preprint

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Textile dyeing releases over 80% of industrial effluents without proper treatment. Dye discharged into effluents typically need degradation before release into aquatic environments. In this regard, the present paper reports the nanocomposite copper oxide/polyaniline (CuO/PANI) is successfully synthesized by in situ chemical oxidative polymerization method and investigate their catalytic activity against organic dyes and nitro-compounds. CuO nanoparticles are synthesized by colloidal sol-gel method using oxalic acid as capping agent to obtained desired morphology. The elemental composition, unit cell and lattice parameters of nanocomposites are characterized by using XRD. The XRD revealed that nanoparticles are extremely crystalline, but nanocomposites are amorphous because of the presence of polymer. The structural and elemental analysis of CuO and CuO/PANI is confirmed by SEM and EDX analysis. FTIR spectra of CuO showed bending vibration while CuO/PANI showed the presence of benzenoid and quinoid rings. Catalytic productivity of the CuO and CuO/PANI as catalysts in degradation of dyes and reduction of nitro-compounds are also studied. The degradation and reduction processes are monitored through the utilization of UV-Vis spectrophotometer. The catalytic activity of both catalysts is evaluated by several parameters including kapp, degradation/reduction time, % degradation/reduction, degraded/reduced concentration and half-life. Among all substrates, highest kapp is 0.0653 min-1 for CV by CuO while 0.0502 min-1 for EBT by CuO/PANI due to large surface area. On degradation or reduction rate of substrates, the impact of functional group type and orientation, bond type and steric hindrance are also investigated.

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Section: Edxmentioning

confidence: 92%

CuO/PANI nanocomposites: An efficient catalyst for degradation and reduction of pollutants

Ammara,

Noreen,

Ali

et al. 2024

Preprint

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show abstract

“…EDX was employed to determine the inorganic composition of the sago waste in each sample and confirm the presence of C and O elements. EDX analysis has been proven effective for analyzing materials with organic and inorganic elements across nano, meso, micro, and macro sizes [ 51 , 52 ].…”

Section: Methodsmentioning

confidence: 99%

Characterization of sago tree parts from Sentani, Papua, Indonesia for biomass energy utilization

Susanto,

Tosuli,

Adnan

et al. 2024

Heliyon

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“…Overall, the use of PPy composites in VOS sensing and detection offers a promising alternative to conventional VOS sensors, due to their unique combination of electrical conductivity, stability, and tunable properties. The high sensitivity and selectivity of PPy-based sensors towards ammonia make them a promising choice for sensing applications in industrial and environmental monitoring [ [36] , [37] , [38] ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of polypyrrole gas sensor for detection of NH3 using an oxidizing agent and pyrrole combinations: Studies and characterizations

Jain

Nabeel

Bhagwat

et al. 2023

Heliyon

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Broad-class volatile organic compounds (VOCs) detection via polyaniline/zinc oxide (PANI/ZnO) composite materials as gas sensor application

Cited by 20 publications

References 44 publications

CuO/PANI nanocomposites: An efficient catalyst for degradation and reduction of pollutants

CuO/PANI nanocomposites: An efficient catalyst for degradation and reduction of pollutants

Characterization of sago tree parts from Sentani, Papua, Indonesia for biomass energy utilization

Fabrication of polypyrrole gas sensor for detection of NH3 using an oxidizing agent and pyrrole combinations: Studies and characterizations

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