Fabrication of ternary AgBr/BiPO4/g-C3N4 heterostructure with dual Z-scheme and its visible light photocatalytic activity for Reactive Blue 19

Enhanced visible light photocatalytic activity of the needle-like SrMoO4decorated g-C3N4heterostructure for degradation of tetracycline

“…According to previous studies, the n value of g-C 3 N 4 is 1 and that of SrMoO 4 is 4. 34,35 Therefore, the band gaps of g-C 3 N 4 and SrMoO 4 are calculated to be 2.74 eV and 2.93 eV, respectively. The band gap of 20SMO/ CN is estimated to be 2.62 eV, which is narrower than that of g-C 3 N 4 , indicating that the introduction of SrMoO 4 can reduce the barrier height which needs to be overcome in the internal electron transfer process and accelerate the electron transfer.…”

Process Optimization and Adsorptive Mechanism for Reactive Blue 19 Dye by Magnetic Crosslinked Chitosan/MgO/Fe3O4 Biocomposite

“…The expressions of pseudo-first order (PFO) [49], and pseudo-second order (PSO) [50], kinetic model are given in the Eqs. ( 6) and (7), respectively:…”

“…Reactive blue 19 (RB19) is one of the important commercial textile dyes belongs to the vinylsulfone azo dye [6]. In recent years, RB 19 reported as a hazardous pollutant, exists in water bodies due to highly solubility, resist degradation, and remains even after effluent treatment plants, in addition to harmful effects such as liver damage, skin problem, and induce weak mutagenic effect [7]. To overcome the problems associated with organic dyes, various treatment techniques such as membrane separation [8], ultrafiltration [9], flocculation [10], microbial degradation [11], photodegradation, [12] and adsorption [13] have been applied for the removal of harmful textile dyes.…”

Process Optimization and Adsorptive Mechanism for Reactive Blue 19 Dye by Magnetic Crosslinked Chitosan/MgO/Fe3O4 Biocomposite

“…1 + 2 (7) where qe (mg/g) and qt (mg/g) are the adsorption capacity of CTS-GL/MgO/Fe3O4 biocomposite (mg/g) at the equilibrium and at time t (min). k1 (1/min) and k2 (g/(mg•min)) are the pseudo-first order rate constant and pseudo-second order rate constant, respectively.…”