Monthly Archives: December 2017

Abstract: Gas phase dehydration of glycerol to acrolein over a series of supported HSiW on ZrO2 and nano-sized gAl2O3 catalyst has been investigated. The characterization results revealed that impregnation of g-Al2O3 nanoparticles increased the specific surface area, pore diameter, and … Continue reading →

ABSTRACT: The photocatalytic reduction of CO2 with H2 over nickel (Ni) and indium (In) co-doped TiO2 nanocatalysts in a monolith photoreactor has been investigated. The structure and properties of catalysts, prepared via modified sol–gel method with different metal-doping levels, were … Continue reading →

Abstract: Experimental and theoretical studies were performed to evaluate the existence of internal and external mass transfer limitations in the gas phase glycerol dehydration to acrolein over supported HSiW catalyst. In the experimental method, the internal and external diffusions were … Continue reading →

ABSTRACT: The study on immobilized titania (TiO2) nanoparticles semiconductor on stainless steel mesh for photocatalytic conversion of CO2 and CH4 has been investigated. Properties of commercial and calcinated photocatalysts on mesh surface were characterized using UV–vis spectra, BET, FESEM and … Continue reading →

ABSTRACT: The glucose conversion using Fe/HY zeolite catalyst in a batch reactor has been investigated. The main products within the temperature range between 120 and 200 C were 5-hydroxymethylfurfural (5-HMF) and levulinic acid (LA). The highest LA yield of 66% … Continue reading →

ABSTRACT: The performance of highly ordered nitrogen-doped titania (TiO2) nanotube arrays, fabricated by anodization method, was tested for photocatalytic CO2 conversion with CH4. Nitrogen-doped titania nanotube arrays were characterized using field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), transmission electron … Continue reading →

ABSTRACT: The discharge of silver ions from nanosilver-based product into the environment has raised the ecological and human health concern due to the toxicity of silver ion, particularly on the release behaviour of ionized nanosilver from the wastage. Therefore, recovery … Continue reading →

Abstract: Palm shells, which are agricultural by-products from palm oil processing, were used to produce low-cost activated carbons. Effect of different carbonization times (1–4 h) on the biochar and activated carbon properties was investigated. The carbonization was carried out at 700°C … Continue reading →

ABSTRACT: Pharmaceuticals and personal care products are recognized as emerging pollutants in water resources. Various treatment options have been investigated for the removal of pharmaceuticals that include both conventional (e.g., biodegradation, adsorption, activated sludge) and advanced (e.g., membrane, microfiltration, ozonation) … Continue reading →

ABSTRACT: Photocatalysis is a promising method for the disinfection of potable water in developing countries. Water treatment using nanocrystalline titanium dioxide photocatalytic oxidation is a well-known, enhanced and advanced oxidation process for environmental remediation. In this article, the bactericidal properties … Continue reading →