An efficient removal of methyl violet from aqueous solution by an AC-Bi/ZnO nanocomposite material

Abstract

The hetero-junctions that are formed between the AC-Bi and ZnO, Bi provide an internal electric field that facilitates separation of the electron–hole pairs and induces faster carrier migration. Thus they often enhanced photocatalytic activity.

Influence of Bi-doping on Mn1−xBixFe2O4 catalytic ozonation of di-n-butyl phthalate

“…Table 1 The influence of Bi-doping on the catalyst morphology is not apparent as seen in eV, respectively (data not shown here), this indicates that bismuth is in +3 state [36], which further confirms the incorporation of Bi (III) ions into ferrite spinel.…”

Dual functional novel catalytic Cu1−xZrxFe2O4 (x=0, 0.5, 1) nanoparticles for synthesis of polysubstituted pyridines and sunlight‐driven degradation of methylene blue

“…Or we can say that with an increase in Zr content the degradation increased. This behaviour can be explained on the basis that the Cu 1 − x Zr x Fe 2 O 4 ( x = 1) catalyst had the smallest band gap (1.44 eV; the increase in photocatalytic activity with decrease in band gap was due to the production of inter‐band or heterojunction which reduces the electron–hole recombination), small particle size (33 nm; with a decrease in particle size, photocatalytic activity is enhanced) and high surface area (49 m 2 g −1 ; increase in surface area has a positive influence on photocatalytic activity) compared to the other Cu 1 − x Zr x Fe 2 O 4 ( x = 0,0.5) catalysts, as discussed earlier with UV spectral, XRD and BET analyses, respectively (Table ). Thus on the basis of the performance exhibited by the Cu 1 − x Zr x Fe 2 O 4 ( x = 1) catalyst for the degradation of MB dye, it was selected as the best catalyst for degradation experiments.…”

TiInCrO6-nanomaterial synthesis, characterization and multi applications

“…12 indicates that TiInCrO 6 modified glassy carbon electrode has larger adsorption-desorption and high electrochemical reaction than that of TiO 2 nanomaterial. A few literature information has indicated that glassy carbon electrodes modified with metal ion and carbon materials are created to achieve enhanced in comparison to bare GCE (Subash et al 2013a, b;Zidan et al 2010;Radhi et al 2010;Chandraboss et al 2015). The result thus suggests that the occurrence of could increases current and improves the relation electron transferred by TiInCrO 6 nanomaterial.…”

“…where Kapp t is the rate constant (min), C 0 is the initial concentration of Rh B, and C t is the concentration of Rh B at reaction time (t) (Zhang et al 2014;Chandraboss et al 2015) from the results (Fig. 6d), TiInCrO 6 shows the maximum degradation rate constant, around (1.6361 9 10 -4 s -1 ) which is higher than that of TiO 2 (1.023 9 10 -4 s -1 ).…”