FeOx,SiO2,TiO2/Ti composites prepared using plasma electrolytic oxidation as photo-Fenton-like catalysts for phenol degradation

Mechanism of tetraborate and silicate ions on the growth kinetics of microarc oxidation coating on a Ti6Al4V alloy

“…3,7–9 The thermal emissivity was regulated by doping V, W, Fe, Co, Ni, and Zr, 10,11 and the catalytic activity was improved by doping Tb, Ag, ZnO, WO 3 , FeO, and G-C 3 N 4 . 12–15…”

“…3,[7][8][9] The thermal emissivity was regulated by doping V, W, Fe, Co, Ni, and Zr, 10,11 and the catalytic activity was improved by doping Tb, Ag, ZnO, WO 3 , FeO, and G-C 3 N 4 . [12][13][14][15] The MAO mechanism is more complex than anodic oxidation or other surface treatment techniques. It involves complex physical and chemical processes, such as electrochemical reactions, ion motion, material phase transition, and solution ion electrophoretic motion.…”

Plasma Electrolytic Oxidation of Titanium in Ni and Cu Hydroxide Suspensions towards Preparation of Electrocatalysts for Urea Oxidation

“…The reactivity of PEO layers can be easily influenced by changing the composition of the electrolytic bath, which is usually completed by adding soluble ions of dopants, i.e., Ni and Cu, to the electrolytic bath to prepare catalytic materials for CO to CO 2 oxidation [ 27 , 28 , 29 ], photoactive materials [ 26 , 30 , 31 ], biomaterials with possible antibacterial properties [ 32 , 33 ] or even catalysts for desulphurization and denitrification [ 34 ]. Other methods of doping of PEO layers are the impregnation of the coating with the soluble salt of the dopant, followed by drying and air annealing (500–1050 °C) [ 29 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 ], the hydrothermal route [ 43 , 44 ], electrodeposition [ 45 , 46 ], the sol-gel method [ 47 ], electroless plating [ 48 ], the solid-state reaction method [ 49 ], the alcohol-thermal method [ 50 ], reactive magnetron co-sputtering [ 51 ], dip coating [ 52 ] or even the coating of different materials with a TiO 2 paste [ 53 ]. A different approach is the preparation of an electrolytic bath in suspension [ 18 , 54 , 55 , 56 ].…”

A Review Paper on Heterogeneous Fenton Catalyst: Types of Preparation, Modification Techniques, Factors Affecting the Synthesis, Characterization, and Application in the Wastewater Treatment

“…The applicability of catalysts has vast areas: chemical engineering, material science, surface science, biochemistry, organic chemistry and inorganic chemistry [36]. Some examples of heterogeneous catalyst and pollutants are Fe-SBA-15/H2O2 and Rhodamine B [28], FeOx,SiO2,TiO2/Ti/H2O2 and phenol [22], FeZSM-5 and Reactive Red 120 [29], Fe 3+ /Cu 2+grafted ZnO [37], copper loaded bentonite and Yellow FCF [38], Cu-Zeolites and 2-( m e t hy l m e r c a p t o ) -be n z o t h i a zo l e [ 3 9 ] , Fe/clinoptilolite zeolite and phenol [23], Cum o d i f i e d a l k a l i n i z e d g -C 3 N 4 [ 4 0 ] , CuO/Fe2O3/SBA-15 and N, N-diethyl-p-phenyl diamine degradation [41], Fe2O3/ACF and of acid red B [42], Fe/OMC and 4-chlorophenol [24], GO-Fe2O3 [43], HPW-Fe-Bent and methyl orange [44], Fe/meso-Al2O3 and phenol [45], Fe(III)-SiO2 and polyacrylamide [46], Fe(III)-HY [47], Fe-doped TiO2 and carboxylic acids [48], CsxH3−xPW12O40 [49], CuFeZSM-5 and Rhodamine 6G [50], Bi-doped goethitehematite and actual pesticide [51], Ag2O-ZnO [52], Schwertmannite and phenol [26], Fe- titanate [53], Ferric giniite [54], Fe3O4-GO and phenol [27], BiFeO3-g-C3N4 and lignin [55], MoS2/Fe3O4 [56], Ag loaded CoFe2O4/Fe2O3 and R6G [57]. Figure 1 (a, b, c, and d) shows the number of research papers related to the appli-cation of the hydrothermal method [57][58][59], wet impregnation method [22,28,29], sol-gel method [4,…”