首页|CaSnO3 coupled g-C3N4 S-scheme heterostructure photocatalyst for efficient pollutant degradation

CaSnO3 coupled g-C3N4 S-scheme heterostructure photocatalyst for efficient pollutant degradation

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The perovskite CaSnO3/g-C3N4 heterostructure nanocomposite was successfully prepared via facile solid-state route. The properties of morphology, structural, optical, functional, elemental, surface, electrochemical and photocatalytic performances were investigated. The synthesised CaSnO3 (CS) nanoparticles were grafted on the g-C3N4 nanosheets and their photocatalytic performance were determined. The introduction of g-C3N4 possesses solid-solid intimately contacted interfaces with CS that provides more transport paths and effectively improve the separation of photogenerated electrons and holes (e -/h+). Thus, the formation of CaSnO3/g-C3N4 (CGN) heterostructures exhibits with tunable optical bandgap and suppresses the charge recombination process that leads to improve the photocatalytic efficiency. Compared with bare CS the CGN photocatalyst achieves 95% of degradation efficiency over methylene blue (MB) dye in 120 min of UV-visible light irradiation. The possible photocatalytic degradation mechanism was discussed. Furthermore, the CGN photocatalyst has been utilized for 4 repeated runs of experiments which shows good stability and reusability after the degradation experiments.

Solid-state reactionPerovskiteGraphitic carbon nitridePhotocatalysisStabilityGRAPHITIC CARBON NITRIDEENVIRONMENTAL REMEDIATIONLIGHTHETEROJUNCTIONCOMPOSITESHYDROGENPHOTODEGRADATIONNANOSHEETORANGEBASNO3

Venkatesh, G.、Palanisamy, G.、Srinivasan, M.、Vignesh, S.、Elavarasan, N.、Pazhanivel, T.、Al-Enizi, Abdullah M.、Ubaidullah, Mohd、Karim, Alamgir、Prabu, K. M.

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Sri Vidya Mandir Arts & Sci Coll

Sri Sivasubramaniya Nadar Coll Engn

Periyar Univ

King Saud Univ

Univ Houston

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2022

Diamond and Related Materials

Diamond and Related Materials

EISCI
ISSN:0925-9635
年,卷(期):2022.124
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