JBCS

Sugarcane bagasse fibers modified superficially through the carboxymethylation process - in natura and MEV image - that were used to adsorb contaminants in biodiesel from soybean oil.

General molecular structure of the triphenylamine based dyes analyzed in the present work.

A bentonite clay was modifed with methoxymethyltriphenylphosphonium chloride (CTFF), this organoclay was silanized with (3-glycidyloxypropyl)trimethoxysilane (GPTMS).

The kinetic swelling and the compression modulus of acrylic hydrogels are affected by the presence of polysaccharides extracted from seed of Persea americana var. Hass and for the type of initiation on the polymeric network.

In the absence of sulfur, PdNiN and NiNPd catalysts had the highest initial rate of hydrogenation (r°sf). In the presence of poison, all the catalysts had similar initial rate of hydrogenation (r°sp). NiClPd presented the lowest fraction of poisoned sites (α), resulting the most sulfur resistant.

Asphaltenes are the heaviest and most polar fraction of crude oils and have the property of self-associate, precipitating in the reservoir or during the production and processing, which can cause serious damage and economic lost to the oil industry.

Schematic representation of the electrochemical system forming a parallel circuit used in wastewater treatment.

The hydrolysis and fermentation of cellulose into hydrogen, biogas and organic acids was performed successfully by biological sludge without pre-workout and without addition of cellulase.

New degraded diterpenoid, byrsonimaquinone, isolated from the stems of Byrsonima coccolobifolia.

Good sensitivity, versatility and low cost make the use of Hanging Mercury Drop Electrode still significant in many countries. Organic and inorganic analytes remain to be studied in different matrices.

Application of cheminformatics to evaluation, selection, and design of new chemicals with optimized properties.

The SLE/LTP-HPLC/UV method was optimized for the determination of carbofuran residues in zucchini. After partitioning at low temperature, the extracts are directly analyzed by chromatography.

Teachers' Professional Development (TPD) is a set of learning opportunities, insights and discussions that improves the classroom practices of teachers. However, the relationship between TPD and educational practice in chemistry educators has not been widely discussed. A theoretical approach around its close link is analyzed.

This figure illustrates a pedagogical link-making in the context of teaching and learning scientific conceptual knowledge.

Phenomenological studies allow a thorough description of laboratory learning environments. Through its analysis researchers gather a better understanding of how learning in the lab occurs. This knowledge informs pedagogical decisions and the design of curricular reforms.