Introducing Environmental and Sustainable Chemistry Topics Using a Nanotechnology Approach: Removing Hazardous Metal Ions by Means of Humic-Acid-Modified Superparamagnetic Nanoparticles

Autor(es)

da Silva, Delmarcio Gomes ; de Melo, Fernando Menegatti ; Silveira, Jr., Alceu Totti ; da Cruz, Bruno Constancio ; Pestana Prado, Caio Cesar ; Pereira de Vasconcelos, Luana Cristina ; Sanches Lucas, Vitor Amaral ; Toma, Henrique Eisi

• Tipo de documento: Artigo Científico
• Fonte: Journal of Chemical Education; v. 93, n. 11, p. 1929-1934, NOV 2016.
• Citações Web of Science: 4

Resumo

A laboratory experiment has been developed to illustrate environmental and sustainability aspects, focusing on the wastewater treatment by means of superparamagnetic nanoparticles functionalized with humic acid. The experiment, conducted by a group of high school students, involves nanoparticle synthesis and minor characterization, followed by their interaction with typical metal ion contaminants in water. Coordination chemistry concepts were explored to help students understand the experiment, using competitive agents, such as ammonia, for recovering and recycling the nanoparticles, highlighting the great affinity of humic acid for the metal ions. (AU)

• Processo FAPESP: 13/24725-4 - Química supramolecular e nanotecnologia
• Beneficiário: Henrique Eisi Toma
• Linha de fomento: Auxílio à Pesquisa - Temático