Based on a dual Z-scheme heterojunction and magnetically separable CoFe2O /g-C3N4/Bi4Ti3O12 flower-like composite for efficient visible-light photocatalytic degradation of organic pollutants

A Breakthrough in Photocatalytic Wastewater Treatment: The Incredible Potential of g-C3N4/Titanate Perovskite-Based Nanocomposites

“…In addition to that, it was also observed that for some pollutants, such as LVF, the dosage amount does not matter that much (Figure 14b) [120]. Zhu et al (2022) conducted an experiment on CoFe 2 O 4 /g-C 3 N 4 /Bi 4 Ti 3 O 12 which supports the above-mentioned facts that when the dosage is increased up to a certain amount, it may interact with more active sites beyond which it will either have no effect on the removal rate or decrease it (Figure 14c,d) [122]. To achieve the best performance, careful catalyst loading optimization is required.…”

“…The right amount of catalyst loading guarantees enough active sites available for pollutant adsorption and subsequent photocatalytic degradation. Inadequate loading may restrict photocatalytic activity, whereas excessive loading may cause active sites to aggregate or be blocked, lowering overall efficiency [117,120,122,134]. Zhao et al found that when the catalyst dosage increased up to a certain amount, the removal rate of MB also increased to 100% (Figure 14a).…”

“…To balance the degradation efficiency and the treatment system's cost-effectiveness, the dosage of the photocatalyst used in the wastewater treatment process should also be optimized. [122] with copyright permission from Elsevier. (d) The impact of different concentrations of MG solutions on degradation rate; adapted from ref.…”

Structural, Optical, Magnetic and Photocatalytic Properties of Zn Doped CoFe2O4Decorated Bentonite Nanocomposites

“…The photocatalytic performance of the catalyst was calculated by using the following equation (Eq. 9): [51,60] Photodegradation efficiency ð%Þ ¼ Co À C t C o x100 (9) where C 0 is the initial concentration of the dye after the adsorption-desorption equilibrium, and C t is the residual concentration of dye at regular time intervals under visible-light irradiation, and k is the apparent rate constant.…”

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

“…This environmental issue has been considered a tough problem that urgently needs to be addressed since conventional treatment methods can hardly eliminate these pollutants due to their stable molecular structure (Agunbiade & Moodley 2016). Advanced oxidation processes have been reported as an effective route to eliminate these refractory compounds (Michael-Kordatou et al 2018), and among various processes, photocatalysis has attracted large attention (Xing et al 2018;Zhu et al 2022). The main reason is its green and eco-friendly features: no requirement of fossil energy and chemical reagents (only solar energy), the conversion of toxic organic compounds into less toxic intermediates, and eventually inorganic substances (Nair et al 2021).…”