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- W4306804404 abstract "• A full-spectrum driven Z-scheme heterojunction C 3 N 4 /N-CQDs@W 18 O 49 was fabricated . • The photocatalyst exhibited good activity for organic pollutant degradation. • The Z-scheme and LSPR effect contributed to the two charge-transfer mechanism. • N-CQDs were found to facilitate charge separation in both of the two mechanisms. To achieve efficient solar-energy conversion, the development of full-spectrum light-driven photocatalysts with valid charge separation performance from UV to NIR wavelengths is a key challenge. Herein, a full-spectrum light-driven g-C 3 N 4 /nitrogen doped carbon quantum dots/W 18 O 49 (C 3 N 4 /N-CQDs@W 18 O 49 ) ternary heterojunction catalyst was fabricated via a solvothermal and hydrothermal method. The prepared ternary heterojunction was shown to exhibit high photocatalytic activity under full-spectrum light, particularly in the NIR region, for degrading the organic pollutants methyl blue (MB), methyl orange (MO), ciprofloxacin (CIP) and tetracycline (TC). XRD, XPS and TEM analysis demonstrated that the synergistic effects of Z-scheme dual-channel charge transfer pathways and localized surface plasmon resonance (LSPR) effects contributed to the high photocatalytic activity. Under UV-vis light irradiation, the Z-scheme pathway enhanced photogenerated charge separation, maintaining the redox of photogenerated electrons and holes for the catalytic reaction. The LSPR effect of the nonmetallic plasma W 18 O 49 broadened the catalytic response to the NIR region, thus improving light utilization. The introduced N-CQDs provided an excellent photoelectron transport medium for electron-hole transfer and separation. This study established an efficient strategy for the preparation of full-spectrum-driven photocatalysts for organic pollutant degradation." @default.
- W4306804404 created "2022-10-20" @default.
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- W4306804404 date "2023-02-01" @default.
- W4306804404 modified "2023-10-18" @default.
- W4306804404 title "Construction of Z-scheme heterojunction C3N4/N-CQDs@W18O49 for full-spectrum photocatalytic organic pollutant degradation" @default.
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- W4306804404 doi "https://doi.org/10.1016/j.apsusc.2022.155255" @default.
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