Developing of high-performance carbonaceous materials from biomass is a significant contemporary research subject to meet the increasing demand for functional adsorbents with low price, high available and sustainability for adsorptive removal processes of industrial pollutants. The present work investigates formation of nanostructured surface modified P-doped activated carbon (ACP) materials via thermochemical activation of orange peel (OP) biomass residual materials, by ... إقراء المزيد

A SERIES OF LAFEO3 PEROVSKITE NANOPARTICLES (NPS) WERE SUCCESSFULLY FORMED BY A DIRECT SOL-GEL METHOD INVOLVING DIFFERENT CITRIC ACID TO METAL RATIOS OF X (WHERE X = 2–16). THE RESULTED PRECURSORS WERE TREATED VIA AUTO-COMBUSTION, FOLLOWED BY CALCINATION AT DIFFERENT TEMPERATURES (300–700 C). SIZE-CONTROLLED LAFEO3 NPS WERE GETTING SMALLER DOWN TO 18.8 NM AT HIGH CITRIC ACID RATIO, SHOWING RELATIVELY ... إقراء المزيد

The removal of heavy metals pollutants from contaminated water by adsorption is one of the most effective physicochemical techniques. The recycling approach of residual biomass into adsorbent materials, has received increasing attention for biomass valorization. In effort for Orange peel (OP) biomass valorization, the conversion of OP into phosphorous (P)− doped activated carbons (ACP) materials was investigated via phosphoric acid ... إقراء المزيد

PHENOLIC POLLUTANTS ARE VERY TOXIC AND THEIR REMOVAL FROM AQUATIC RESOURCES IS VERY IMPORTANT. ADSORPTION BY ACTIVATED CARBON, AC, IS THE BEST METHOD FOR REMOVAL OF PHENOLS FROM SOLUTIONS. HOWEVER, THE HIGH COST OF AC AND DIFCULTY OF ITS REGENERATION AFTER PHENOL ADSORPTION PUTS HIGH DEMAND ON LOW PRICE AC MATERIALS. THEREFORE, SUGARCANE BAGASSE AS A SUSTAINABLE, BULKY AND FBROUS ... إقراء المزيد

LAFEO3 NANOSPHERES WITH AN ORTHORHOMBIC PEROVSKITE STRUCTURE WERE SYNTHESIZED BY A SOL–GEL AUTOCOMBUSTION METHOD IN THE PRESENCE OF DIFFERENT CITRIC ACID RATIOS (X ¼ 2, 4, 8, AND 16) AND UTILIZED FOR THE PHOTOCATALYTIC CONVERSION OF O-AMINOPHENOL (OAP) TO 2-AMINOPHENOXAZINE-3-ONE (APX) FOR THE FIRST TIME. OAP IS ONE OF THE MOST TOXIC PHENOLIC DERIVATIVES USED AS A STARTING MATERIAL IN ... إقراء المزيد

MAXSORB III IS THE BEST AVAILABLE MICROPOROUS ACTIVATED CARBON. THE PARENT MAXSORB III HAS BEEN MODIFIED BY PYROLYSIS IN THE PRESENCE OF AMMONIA CARBONATE. THE ADSORPTION ISOTHERMS AND KINETICS OF HFC404A ONTO THE MODIFIED MAXSORB III ARE EXPERIMENTALLY MEASURED OVER 25 °C TO 75 °C. TÓTH AND DUBININASTAKHOV MODELS ARE UTILIZED TO FIT THE EXPERIMENTALLY MEASURED DATA. THE ISOSTERIC HEAT ... إقراء المزيد

THE CURRENT ENVIRONMENTAL SITUATION HAS URGED RESEARCHERS TO LOOK FOR ALTERNATIVE GREEN FUELS WITH LOWER EMISSIONS FROM BIOMASS FEEDSTOCK. THIS WORK AIMS A GREENER APPROACH FOR THE HETEROGENEOUS CATALYTIC CONVERSION OF METHANOL TO DIMETHYL ETHER, DME, AS AN ALTERNATIVE FUEL. THUS, A SERIES OF PHOSPHOROUS−CONTAINING ACTIVATED CARBON (ACP) DERIVED FROM ORANGE PEEL (OP) AT DIFFERENT H3PO4: OP (W/W) RATIONS, AS ... إقراء المزيد

DIRECT FORMATION OF 3–30% (W/W) LAFEO3/MCM−41, NANOCOMPOSITE CATALYSTS WERE PERFORMED BY A SOL−GEL PROCESS, FOLLOWED BY CALCINATION AT 550 AND 750 °C. THE NANOCOMPOSITES WERE CHARACTERIZED THROUGH DIFFERENT TECHNIQUES INCLUDING LAXRD, WAXRD, EDX, SIMULTANEOUS TG−DTA, ATR−FTIR, NITROGEN ADSORPTION/DESORPTION, AND TEM. THE NANOCOMPOSITES FEATURED HIGH SURFACE AREAS (UP TO 1000 M2/G) AND ENHANCED THERMAL STABILITY. THE DIRECT FORMATION METHOD LED TO ... إقراء المزيد

TiO2 nanoparticles were synthesized from titanium isopropoxide by a simple peptization method using sulfuric, nitric, and acetic acids. The effect of peptizing acid on physicochemical and photocatalytic properties of TiO2 powders was studied. The structural properties of synthesized TiO2 powders were analyzed by using XRD, TEM, N2-physisorption, Raman, DR UV-_vis_, FTIR, and X-ray photoelectron spectroscopy techniques. The characterization results showed ... إقراء المزيد

TITANIUM DIOXIDE NANOPARTICLES (TIO2 NPS) ARE MANUFACTURED WORLDWIDE IN LARGE QUANTITIES FOR USE IN A WIDE RANGE OF APPLICATIONS. TIO2 NPS PROVED TO DAMAGE LIVER FUNCTION AND INDUCE AN OXIDATIVE STRESS ATTACK LEADING TO LIVER TOXICITY. MILK THISTLE IS AN HERBAL SUPPLEMENT USED TO TREAT LIVER AND BILIARY DISORDERS. SILYMARIN, AN ACTIVE INGREDIENT OF MILK THISTLE, IS A STRONG ANTIOXIDANT ... إقراء المزيد