Impact of Variable Metal Oxide Loadings on Photocatalytic and Antibacterial Behaviour of CNT-NiO Nanocomposites

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

“…Isothermal models are essential to qualitatively explain the adsorbent-adsorbate interaction, the mechanism of the adsorption process, and the adsorptive capacity of the adsorbent [64]. Experimental data for MG and CR adsorption were fitted to the nonlinear Langmuir, Freundlich, Redlich-Peterson (R-P), Temkin, and Sips models, corresponding to Equations ( 3)- (7), respectively [22,65]:…”

“…q e = (q max K S C e ns )/(1 + K S C e ns ) (7) where q e (mg/g) is the amount of dye adsorbed by the waste in the equilibrium; q max (mg/g) is the maximum adsorption capacity of the waste; C e (mg/L) is the concentration of dye adsorbed at equilibrium; K L (L/mg), K F ((mg/g) (L/mg)1/n), K RP (L/g), and K S (L/mg) are the constants for the Langmuir, Freundlich, Redlich-Peterson (R-P), and Sips models, respectively; n and n s correspond to the heterogeneity factor; β and α RP (1/mg) are the constants for the R-P model; A T (L/mg) and b T (J/mol) are the constants for the Temkin model. The adsorption isotherms are depicted in Figure 5a-f, and the calculated isothermal parameters are presented in Tables 4 and 5.…”

“…Effluents from these industries often contain a significant amount of dyes. Dye molecules have a negative impact on the biological cycle of aquatic life, as they block sunlight, reduce oxygen levels, and hinder the process of photosynthesis [6,7]. Furthermore, organic dyes, especially those classified as cationic and anionic, possess mutagenic, allergenic, and carcinogenic properties.…”

Efficient photo-oxidation of bisphenol a and tetracycline through sulfur-doped g-C3N4/CD heterojunctions

“…Photocatalysis stands as a beacon of hope in the realm of environmental remediation and clean energy production, offering a green and sustainable solution to pressing global challenges. 14 Graphitic carbon nitride (g-C 3 N 4 ) 15 is one of the several types of photocatalysts that has drawn interest since it is devoid of metals and reacts to visible light making it appropriate for a variety of uses, such the evolution of hydrogen or oxygen, 16,17 CO 2 reduction, 18 and environmental remediation. 19 However, bulk g-C 3GC faces limitations including high defect density, fast charge recombination, and low specific surface area.…”