English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Vermiculite and chitosan have been widely studied for the treatment of wastewater contaminated with heavy metals by presenting, respectively, good ion exchange capacity and metal complexation. In this work, we studied the removal of Pb2+ ions using a hybrid material of vermiculite with chitosan. The BET analysis revealed an increase in surface area from 1,8 to 21,6 m2/g and SEM analysis indicated an increase in porosity of vermiculite after modification with chitosan. The FTIR analysis of the hybrid material showed characteristic transitions of the two starting materials. The removal capacity of Pb2+ ions by the hybrid material was on average 88,4% for effluent concentrations in the range of 20-200 mg/L and 64,2% for concentrations around 1000 mg/L. The removal capacity of the hybrid material was higher by 12,7%, when compared to the starting materials, in different experimental conditions.

Remoção de íons chumbo (Pb2+) de efluentes sintéticos através de adsorção em vermiculita revestida com quitosana