Molecular sieves MCM-41 were synthesized from rice husk ash (RHA) as alternative sources of silica. The material was synthesized by a room temperature method from a gel with the molar composition SiO2: 1.6EA: 0.215HDTMABr: 325H2O with pH correction. The cetyltrimethylammonium bromide (CTMABr) was used as a structure template. Nanocomposite containing 5.0 and 10.0 wt.% of Cu was synthesized unde...

The facile chemical synthesis method was used for preparing Trimetallic Fe-Co-V/Zeolite and Fe-Co-Mo/Zeolite composite nanostructures. structural functionalities morphological observations were obtained using characterization techniques of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transfer infrared (FT-IR) spectroscopy, energy dispersive spectroscopy ...

MoS2–C3N4 composite materials with Mo content from 0.3 to 9 wt% have been prepared by means of one-pot synthesis ammonium thiomolybdate (NH4)2MoS4 and urea-thiourea mixture. The solids were characterized several physical techniques tested in the thiophene hydrodesulfurization model reaction (HDS) photocatalytic hydrogen evolution (PHER). Transmission electron microscopy (TEM) X-ray absorption s...

LaMnO3 and LaMnO3/ZSM-5 nano catalysts were synthesized by Pechini method and their physical-chemical properties were characterized using XRD, FTIR, SEM-EDX, UV-vis DRS, BET surface area and TPR. The correlation between characteristic properties and activity of catalysts were investigated. The catalytic performance of the catalysts was evaluated in combustion of 2-propanol...

In this work, we report on the synthesis of a new-age reusable visible-light photocatalyst using heterojunction nanocomposite W6+/Yb3+ mixed-phase mesoporous network monolithic TiO2. The structural properties photocatalysts are characterized p-XRD, SEM-EDAX, TEM-SAED, XPS, PLS, UV–Vis-DRS, FT-IR, micro-Raman, TG–DTA, and N2 isotherm analysis. electron microscopic analysis reveals ordered worm-l...

LaMnO3 and LaMnO3/ZSM-5 nano catalysts were synthesized by Pechini method and their physical-chemical properties were characterized using XRD, FTIR, SEM-EDX, UV-vis DRS, BET surface area and TPR. The correlation between characteristic properties and activity of catalysts were investigated. The catalytic performance of the catalysts was evaluated in combustion of 2-propanol...

Single semiconductors such as KTaO3, CdS MoS2 or their precursor solutions were combined to form novel binary and ternary semiconductor nanocomposites by the calcination or by the hydro/solvothermal mixed solutions methods, respectively. The aim of this work was to study the influence of preparation method as well as type and amount of the composite components on the surface properties and phot...

Fluorinated-defective titanium dioxide (F-TiO2−x) was successfully synthesized by fluorination of TiO2 through the hydrothermal method. The microstructure and physicochemical properties catalyst were characterized scanning electron microscopy, transmission X-ray diffraction, photoelectron spectroscopy, UV–vis diffuse reflectance spectroscopy (UV–vis DRS). As expected, F-TiO2−x demonstrates high...

the reduction capacity of ammonia while present even at ppm level can be demonstrated by the increased encounter probability between ammonia and methylene blue dye (mb+) incorporated in nanomordenite and na-mor zeolites. the rate of reduction methylene blue dye by ammonia on the surface nanomordenite zeolite is faster than na-mordenite (na-mor) zeolite.because nanomordenite zeolite with high si...

With regard to the application in a microstructured reactor, a special VOx/Al2O3 catalyst powder (3 μm) was prepared and characterised by BET, XRD, UV/Vis DRS, and Raman spectroscopy. The higher the vanadium content, the higher the degree of polymerisation of the vanadium species on the support surface and the lower the BET surface area. Pelletised powders were tested in conventional tubular re...