Publications by authors named "Songyu Fan"

In this study, the VO@5%Cu-VMOF/graphite felt (GF) is prepared as an electro-Fenton cathode via hydrothermal process and low-temperature carbonization for efficient antibiotics degradation. The VO@5%Cu-VMOF/GF cathode exhibit great ciprofloxacin (CIP) degradation performance over the pH range of 2.1-7.

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Article Synopsis
  • Surface defects in photocatalysts can enhance carrier separation but the inactivation of oxygen vacancies (OVs) reduces catalytic efficiency and durability.
  • The study develops a composite material, Sn-BOC/CQDs-2, using carbon quantum dots (CQDs) to improve electron transfer and stability, achieving high removal rates for contaminants like levofloxacin (88.7%) and chromium (VI) (99.3%).
  • CQDs help stabilize OVs by taking their place in chemical reactions, thus preventing negative effects on the photocatalytic process and revealing different degradation pathways for the pollutants.
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Photocatalytic conversion of carbon dioxide (CO) into high value-added chemicals is an attractive yet challenging process, primarily due to the readily recombination of hole-electron pairs in photocatalysts. Herein, dual-oxygen-vacancy mediated Z-scheme BiSnO/Sn/NiAl-layered double hydroxide (V-20BSL) heterojunctions were hydrothermally synthesized and subsequently modified with Sn monomers to enhance photocatalytic activity toward CO reduction. The abundance of oxygen vacancies endowed the V-20BSL with extended optical adsorption, enhanced charges separation, and superior CO adsorption and activation.

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A strategy of "macro-micro-nano" organization is reported for embedding oxide-encapsulated-nanoparticles onto monolithic substrates in one-step with the aid of molecularly defined cross-linking agents. Such catalysts, with enhanced heat/mass transfer and high permeability, are qualified for several harsh reaction processes such as CH/VOC abatement, gas-phase hydrogenation of dimethyl oxalate and oxidative dehydrogenation of ethane.

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