Facile green synthesis of fingernails derived carbon quantum dots for Cu2+ sensing and photodegradation of 2,4-dichlorophenol

Sonochemical synthesized BaMoO4/ZnO nanocomposites as electrode materials: A comparative study on GO and GQD employed in hydrogen storage

“…Absorption peaks in 1628 cm −1 are related to aromatic ring stretching C C [64] , [65] . The three bands at 1386 and 1115 cm −1 could be attributed to the C O and C-OH groups, respectively [66] , [67] , [68] , [69] . For BaMoO 4 /ZnO nanocomposites, the peaks at 3430 and 1628 cm −1 indicate the symmetric-antisymmetric stretching vibrations and bending of the water molecules adsorbed on the material surface, which is derived from moisture [70] , [71] .…”

An overview on animal/human biomass-derived carbon dots for optical sensing and bioimaging applications

“…247,248 Aerwards, ngernails were again used without hazardous H 2 SO 4 to obtain small-sized CDs (∼3.1 nm) under HT condition. 249 Based on the overall summary discussed above, it can be concluded that HT treatment is the most versatile approach to produce animal/human biomass-derived CDs with a high QY, narrow size, and effective heteroatom doping; however, the pyrolysis, MW, and MW-HT methods are also applicable to various animal/human biomass precursors. The starting precursor and initial composition also play an important role in achieving good-quality CDs.…”

Fluorescence sensing by carbon nanoparticles

“…Recently, Sim and co-workers reported the use of CNPs obtained via the hydrothermal treatment of human fingernails as a green precursor for the sensing of copper ions. 120 These nanoparticles, also used for the photodegradation of 2,4-dichlorophenol (2,4-DCP) under sunlight, could selectively detect copper ions at a concentration as low as 1 nM, following the quenching of their emission.…”