The adsorption of the anionic dyes orange IV, orange G and xylenol orange on chitin was
studied, employing the Langmuir isotherm. The adsorption parameters were determined …

This work compared activated carbon, activated earth, diatomaceous earth, chitin and
chitosan to removal acid blue 9, food yellow 3 and FD&C yellow nº 5 dyes from aqueous …

The α-form of the biopolymer chitin, with particle sizes in the 80–200 mesh range was
deacetylated under hot alkaline conditions to yield chitosan. These biopolymers were …

In this work hybrids of citric acid doped polyaniline and magnetic iron oxide (MOM) were
prepared by in situ chemical polymerization and evaluated in blue methylene dye (MB) …

Here we report on the preparation of gold nanoparticles supported on an insoluble thiolated
chitosan derivative, which acted both as reducing and as a stabilizing agent. The material …

A composite with a natural red clay (taua) and TiO 2, labeled TiO 2/Taua, was prepared and
its photocatalytic activity assessed using methylene blue as model molecule. The …

Zinc oxide (ZnO) quantum dots (QDs) are very attractive to many applications due to their
optical and electronic properties and low toxicity. Among the applications, ZnO has been …

Chitin, chitosan and modified chitosan, biopolymers which have structures similar to that of
cellulose, are proposed for removal of copper ion from diesel oil. These natural polymers …

The characterisation of smectite clay, charcoal and prepared clay-charcoal composites was
carried out through the X-ray diffractometry, energy dispersive X-ray spectroscopy (EDS) …

The textile industry, very important for the world economy, generates an effluent containing
dyes, and which, when discarded in water bodies without proper treatment, can cause …