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- W4200013887 abstract "The present work suggested the use of waste oil palm frond as an alternative precursor for nitrogen-doped carbon quantum dots (NCQDs) and proposed a straightforward in-situ hydrothermal method for the preparation of NCQDs/TiO2 nanocomposites. The elemental composition, morphological, structural and optical characteristics of NCQDs/TiO2 nanocomposites have been comprehensively investigated. The successful grafting of NCQDs on TiO2 matrix was confirmed by the formation of TiOC bond and the electronic coupling between the π-states of NCQDs and the conduction band of TiO2. For the first time, the oil palm frond-derived NCQDs/TiO2 was adopted in the photodegradation of methylene blue (MB) under visible-light irradiation. As a result, the photocatalytic efficiency of NCQDs/TiO2 nanocomposites (86.16%) was 2.85 times higher than its counterpart TiO2 (30.18%). The enhanced performance of nanocomposites was attributed to the pivotal roles of NCQDs serving as electron mediator and visible-light harvester. Besides, the optimal NCQDs loading was determined at 4 ml while the removal efficiency of NCQDs/TiO2-4 was the highest at a catalyst dosage of 1 g·L−1 under alkaline condition. This research work is important as it proposed a new insight to the preparation of biomass-based NCQDs/TiO2 using a facile synthetic method, which offers a green and sustainable water remediation technology." @default.
- W4200013887 created "2021-12-31" @default.
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- W4200013887 date "2022-11-01" @default.
- W4200013887 modified "2023-10-06" @default.
- W4200013887 title "Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots/titanium dioxide as multifunctional photocatalysts under visible light radiation" @default.
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- W4200013887 doi "https://doi.org/10.1016/j.cjche.2021.10.021" @default.
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