A comparison study of ZnO, InZnO, GaZnO and InGaZnO physical properties and optical bandgap

Kasim, Nabihah; Hassan, Z.; Lim, Way Foong; Quah, Hock Jin

doi:10.1504/ijnt.2022.124505

Cited by 1 publication

(1 citation statement)

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“…In conclusion, the XPS pa ern analysis shows that there is residual oxygen-co ing functionality on the carbon surface in the Ag/ZnO/BC nanofilm composite, and can replace Zn on the Ag/ZnO material surface or H in -OH, forming C-O-Zn bonds ZnO la ice, particularly at the interface between carbon and ZnO [15]. All of the analyses indicate that ZnO was successfully compounded with biochar nanofilms.…”

Section: Sample Characterisation Analysismentioning

confidence: 80%

Novel Photocatalyst Ag/ZnO/BC Nanofilms Degradation of Low Concentration Ammonia Nitrogen Wastewater

Li,

Jiang

et al. 2023

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In this study, an innovative Ag/ZnO/BC nanofilms composite material was synthesized by loading zinc oxide and silver on biochar nanofilms using a combination of hydrothermal and calcination methods using zinc oxide, silver and biochar as raw materials. Subsequent characterization analysis confirmed the successful synthesis of Ag/ZnO/BC nanofilms photocatalysts, and the Ag/ZnO nanocomposite particles were effectively loaded on the biochar nanofilms (BC). The composite exhibited robust photocatalytic removal under visible light irradiation under simulated wastewater conditions with an ammonia nitrogen concentration of 50 mg/L. The photocatalytic removal of ammonia and nitrogen pollutants in the composite was achieved by the use of Ag/ZnO nanoparticles. Specifically, the degradation of ammonia nitrogen pollutant reached a peak efficiency of 83.28%. Notably, the photocatalyst maintained over 80% degradation efficiency after four cycles, highlighting its sustained photocatalytic activity and stability. In conclusion, this study elucidated a feasible method to fabricate metal oxide–biochar thin-film composites with excellent adsorption and photocatalytic properties, thus providing a promising pathway for the remediation of organic wastewater, especially wastewater containing ammonia and nitrogen pollutants.

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Section: Sample Characterisation Analysismentioning

confidence: 80%