Study on the photocatalytic mechanism and detoxicity of gemfibrozil by a sunlight-driven TiO2/carbon dots photocatalyst: The significant roles of reactive oxygen species

Manipulating the Optical Properties of Carbon Dots by Fine‐Tuning their Structural Features

“…In o-CDs, the smaller ratio of sp 2 carbon to oxygen fluorophores leads to an order-of-magnitude higher F and longer lifetimes, either of which would favor their application in photocatalytic or optoelectronic applications. [21,[63][64][65] Considering the similarity of structural and opticalp roperties in hydrothermally prepared carbon materials, [66][67][68][69] fine-tuning their structural features with oxidation/reduction to control the optical properties should be applicable to hydrothermal CDs.…”

Sulfate radical-induced transformation of trimethoprim with CuFe2O4/MWCNTs as a heterogeneous catalyst of peroxymonosulfate: mechanisms and reaction pathways

“…4a), no distinctive radical was produced by DMPO; the EPR signals represented the presence of DMPO-OH and DMPO-SO 4 c À adducts. 30,31 Thus, $OH and SO 4 c À were shown to be involved in the catalytic degradation process. 32 To further identify the types of major reactive radical species generated in the degradation system, ethanol (EtOH) and tertbutyl alcohol (TBA) were added into the reaction solution as radical quenching agents.…”

Enhanced Photocatalytic Activity of Carbon Dots Grafted TiO2 Nanorods

“…Many organic compounds can be used to prepare carbon dots, such as graphene oxide, graphite rods, glucose, citric acid, candle ash, polyvinyl alcohol, etc. Some researchers have prepared carbon dots/ TiO 2 composites [5]- [8], such as CDs/TiO 2 nanosheets, CDs/TiO 2 nanotubes, CDs/TiO 2 nanotube arrays, CDs/TiO 2 nanobelts, and CDs/mesoporous TiO 2 by physical blending, impregnation, and electrodeposition. And they found that the CDs/TiO 2 composites are good photocatalysts for degradation of pollutants, solar energy conversion, and hydrogen evolution, because CDs can harvest visible light and inject excited electrons into the conduction band of TiO 2 through the interfacial bonds between CDs and TiO 2 .…”