Remarkable sunlight-driven photocatalytic performance of Ag-doped ZnO nanoparticles prepared by green synthesis for degradation of emerging pollutants in water

PVP-derived TiO2/C and TiO2/C/N Nanofibers by SBS with High Adsorption/Photocatalytic Capacity

“…The same order is attributed to the amount of carbon in the TiO 2 structure. As is known, pure TiO 2 does not absorb in the visible region 31 , however, in this work, it is suggested that the interaction between carbon and TiO 2 reduced the band gap of the samples, making them photosensitive to visible light.…”

“…Carbon acts as a sensitizer by narrowing the bandgap of TiO 2 , allowing the composite material to capture a broader range of light energy, including visible light [27][28][29][30] . This is an essential strategy, as it becomes possible to utilize a larger portion of solar radiation, which is more abundant and accessible compared to UV light 31,32 . TiO 2 photo-excited generates pair electron holes that can be accepted by the carbon, resulting in an efficient charge separation 33 .…”

Hydrothermal synthesis of an SnO2–rGO nanocomposite using tea extract as a reducing agent for daylight-driven photocatalyst and supercapacitors

“…The collected samples were characterized by UV-vis spectroscopy at a maximum wavelength of 665 nm. The percentage of degradation of the MB dye molecules was then calculated using the following equation, 53–55 Degradation efficiency (%) = (1 − C / C 0 ) × 100where C 0 and C are the solution concentrations at t = 0 and at an irradiation time t , respectively.…”

“…The collected samples were characterized by UV-vis spectroscopy at a maximum wavelength of 665 nm. The percentage of degradation of the MB dye molecules was then calculated using the following equation, [53][54][55] Degradation efficiency (%) = (1…”