Massive quantities of spent coffee grounds (SCGs) are generated by users around the world. Different processes have been proposed for SCG valorization, including pyrolytic to achieve carbonaceous materials. Here, we report preparation activated carbons through carried out under different experimental conditions and in presence various porosity activators. Textural chemical characterization obta...

The mixed metal oxides Bi2MoO6 and La-doped were prepared by the sol–gel method. Then, varying quantities of as-prepared blended with graphene oxide (GO), employing sonication, to obtain Bi2MoO6/GO (BM/GO) La-Bi2MoO6/GO (LBM/GO) nanocomposites. These materials characterized different techniques such as thermal gravimetric analysis (TGA), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), ph...

Utilization of CO2 for the production fine chemicals has become a research hotspot long time. In order to make use CO2, we developed highly efficient heterogeneous catalyst (denoted as Pd@POPs) N-formylation reaction amine and under mild conditions. The Pd was based on porous organic polymer derived from solvothermal polymerization vinyl-functionalized PPh3. A series characterizations comparati...

In the present study, potassium chloride-assisted solution combustion method was used to synthesize cobalt ferrite nanoparticles. Potassium chloride salt as a specific surface enhancer and nitric acid an auxiliary oxidizer pH regulator. The simultaneous effect of initial amount added on area, structural, microstructural magnetic properties synthetic powders were studied. X-ray Diffraction (XRD)...

Activated carbon, which is used in many application areas such as gas purification, purification of pollution water and wastewater, removal odor pollution, the defense industry, production protective clothing health sector, was produced from solid products obtained by waste polyethylene terephthalate (wPET) liquefaction that carried out under non-catalytic conditions, reaction time 15-90 min, a...

Untreated effluents from the textile industry containing colorant dyes are harmful to environment, aquatic organisms, and human health. Among these effluents, Rhodamine 6G is known as a corrosive irritant dye. A coconut shell-derived nanomagnetic adsorbent composite (CS-NMAC) was developed remove aqueous solution. Physical adsorption properties of CS-NMAC were characterized via Brunauer–Emmett–...

To evaluate the potential of using renewable biomass in novel HIsarna technology, reactivity thermal coal (TC), charcoal (CC), Bana grass char (BGC) before and after rapid devolatilization at 1500 °C a drop tube furnace (DTF) was investigated. Thermogravimetric (TG) used for CO2 gasification study, high temperature confocal scanning laser microscope (HT-CSLM), Brunauer-Emmett-Teller (BET) elect...

From an Indonesian volcanic tuff taken from parent material layer of Andisols profile, it was separated ‘nanoclay’ fraction <200 nm particle size. The exhibits pH-dependent charge characteristic due to the presence allophane in tuff. Therefore, can be utilized as a natural anionic adsorbent since its separation process conditioned proceed at pH <4.0. This study aims compare phosphate adso...

Au-TiO2 catalysts were used in the photocatalytic degradation of methylene blue dye (MB). The synthesis titanium oxide (TiO2) was carried out by sol-gel method. Subsequently, particles Au deposited on surface semiconductor photo-deposition, thus modifying semiconductor. For characterization catalyst obtained, techniques X-ray Diffraction (DRX), Scanning Electron Microscopy (SEM), Spectroscopy w...

factors that affect stability. The interaction of pharmaceutical solids with water can affect their chemical stability as well as their physical and mechanical properties. The influence of moisture on solid-state stability has therefore been extensively documented. It is important now to understand and to anticipate the behaviour of a product exposed to a variety of environmental conditions (e....