Cost effective porous areca nut carbon nanospheres for adsorptive removal of dyes and their binary mixtures

Efficient cationic dye removal from water through Arachis hypogaea skin-derived carbon nanospheres: a rapid and sustainable approach

“…Thus, FTIR data show that hemicellulose and lignocellulose are the main components of biowaste that can serve as carbon precursors in the production of highly ordered carbon nanospheres. 18,36,38 Aer pyrolysis, the lignocellulosic group has been converted to carbon. The peak at 1800 cm −1 and 1450 cm −1 indicates the occurrence of C]O stretching and C-H bending, respectively, showcasing that the precursor is pyrolysed.…”

“…Due to their substantial capacity for removing organic matter and affordability, adsorption techniques are highly effective in treating industrial wastewater. 14 Through considerable prior research [12][13][14][15][16][17][18] for treating textile and dye effluents, the efficacy of adsorption methods has been proven.…”

“…Moreover, biowaste-derived CNSs have distinct advantages as they provide a sustainable, environmentally friendly, and easy synthesis approach option that makes use of agricultural byproducts that would otherwise go to waste, as reported in earlier research. [18][19][20][21][22] Biomass-derived CNSs have inbuilt porosity being mesoporous in nature with spherical morphology, making them an ideal candidate for dye degradation applications. Furthermore, the renewable nature of biowaste provides a steady and plentiful supply, decreasing reliance on nite resources.…”

“…Generally, a good bio-adsorbent for removing dyes should meet the following criteria: high selectivity in a wide range of concentrations, signicant adsorption capacity for simple and complex samples, and other factors such as recyclability, quick desorption from the dye surface, and environmental friendliness. 18,30 All of the criteria are fullled by the CNSs synthesized from this biomass.…”

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

“…Tese auxochrome groups allow the fxation of the dyes and can modify the color of the dye. Te auxochrome groups are acidic (COOH, SO 3 , and OH) or basic (NH 2 , NHR, and NR 2 ), while the third part of the molecule is the rest part of the atom called as matrix [5]. Te azo dyes with the (-N=N-) chromophore group account for 70% market share and are highly soluble in water [6].…”