Aluminium/iron mixed oxides obtained by co-precipitation method

In last years, various synthesis methods have been used for production of nanomaterials, composites/nanocomposites. For preparation of catalysts are used different methods such as hydrothermal, sol-gel and co-precipitation. Because Fe2O3 -Al2O3 mixed oxide system offer many advantages, its important to know if the combination of two transition metal oxides can affect their stoichiometry, surface, catalytic properties and textural structure. The aim of this study is represented by mixed of oxides who was obtained from the synthesis of aluminum nitrate and iron nitrate who was prepared by the co-precipitation method. Then, the characterization studies about the compounds obtained such as hematite, magnetite and the alumina were performed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and UV-Vis spectrophotometry

Reactive Yellow 125 degradation using titanium dioxide doped with N

The aim of this paper was the syntheses of titanium dioxide undoped and doped with nitrogen ion through sol-gel method in order to degrade Reactive Yellow 125 dye from water. The obtained nanomaterials were characterized by XRD, DRUV-VIS and SEM/EDX. Ndoped Ti02 catalyst exhibited good electrocatalytic activity for RY125 discoloration and degradation under both UV and VIS irradiation, which gives a practical utility of this catalyst

Removal of humic acid from water by sorption

In this research, several sorption material types, i.e., zeolite (A), activated carbon (B), the mixture of 50wt.% zeolite and 50wt.% activated carbon (C); 70wt.% zeolite and 30wt.% activated carbon (D); the mixture of 30wt.% zeolite and 70wt.% activated carbon (E) were tested to examine the application for HA removal by sorption process. The structure of natural zeolite and activated carbon was examined by instrumental analysis methods, i.e., X-ray diffraction (XRD) and scanning electron microscopy (SEM/EDX). From the sorption studies, the mixture of 50 wt. % zeolite and 50 wt. % activated carbon was chosen to be the best composition for further studies regarding the advanced composite material for humic acid removal from water

Porous SNO2/TI dimensionally stable anode for degradation of pollutants from water : synthesis and morphostructural characterization

In this work, the protocol based on Doctor-Blade method for synthesis of porous SnO2/Ti dimensionally stable anode suitable for advanced treatment of water/wastewater is presented. Prior to SnO2/Ti synthesis, SnO2 was obtained by sol-gel method using SnCl2 as Sn precusor and polyethylene glycol. The morpho-structural characterization through X-ray diffraction (XRD) and scanning electron microscopy coupled with energy-dispesive X-ray (SEM/EDX) confirmed an uniform deposition of SnO2 mesoporous on the Ti surface with typical mud cracked-like structure, which should be suitable for the further water treatment application

Effect of carbon nanofiber onto TiO2-modified powder/granular activated carbon for advanced water treatment

In this work, the influence of carbon nanofiber on the performance of TiO2-modified activated carbon (TiO2-AC) as photocatalyst for advanced water treatment was studied. TiO2-modified carbon nanofiber/activated carbon in powder form (TiO2-CNF/PAC) and in granular form (TiO2-CNF/GAC) were prepared by sol-gel method. Comparative morphological characterization studies for TiO2-CNF/PAC and TiO2-CNF/GAC and their testing for 25 mgL1 humic acid (HA) degradation showed a better performance of the overall sorption-involved photocatalysis using TiO2-CNF/GAC