Metal free, phosphorus doped carbon nanodot mediated photocatalytic reduction of methylene blue

Recent Progress on Carbon Quantum Dots Based Photocatalysis

“…Mathew et al fabricated carbon nano-dots (CD) and P-doped carbon nano-dots (P-CD) from d -glucose anhydrous via hydrothermal treatment ( Mathew et al, 2020 ). Glucose was held in an autoclave with Teflon lining for 6 h at 150°C, filtered, and centrifuged at 5,000 rpm to make CD.…”

Review on green carbon dot-based materials for the photocatalytic degradation of dyes: fundamentals and future perspective

“…Although we notice efficient degradation of dyes in sunlight, the influence of dopant on the catalyst shows better photocatalytic activity. Mathew et al 100 reported the synthesis of CDs from anhydrous d-glucose doped with phosphorus showing a rise in electrostatic potential on the surface, which assists in the movement of holes from the valence band to the surface. Therefore, heteroatoms can be embedded on the CDs due to increased potential at the surface level, which eventually improves the photocatalytic activity sensitized by sunlight.…”

Preparation of PANI Modified ZnO Composites via Different Methods: Structural, Morphological and Photocatalytic Properties

“…The reason of the blue-shift could be explained by N-demethylation of MB via oxidative degradation (SI Part 1, Figure S4). These absorption bands recorded at wavelengths as 655-648 nm (tirr = 20 min), 634-620 nm (tirr = 40 min), 606-614 nm (tirr = 60 min) and 604 nm (tirr = 90 min) were attributed to Azure B, Azure A, Azure C and thionine (N-demethylated intermediates of MB), respectively [56][57][58][59].…”