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

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

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 synt...

Full description

Saved in:
Bibliographic Details
Published in:Journal of chemical education Vol. 93; no. 11; pp. 1929 - 1934
Main Authors: da Silva, Delmárcio Gomes, de Melo, Fernando Menegatti, Silveira, Alceu Totti, da Cruz, Bruno Constancio, Prado, Caio Cesar Pestana, de Vasconcelos, Luana Cristina Pereira, Amaral Sanches Lucas, Vitor, Toma, Henrique Eisi
Format: Journal Article
Language:English
Published: Easton American Chemical Society and Division of Chemical Education, Inc 08-11-2016
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society
American Chemical Society
Subjects:
Ammonia
Brazil
Chemistry
Contaminants
Contamination
Environmental Education
Foreign Countries
Green chemistry
High School Students
Humic acids
Ions
Laboratory Experiments
Metal ions
Metallurgy
Nanoparticles
Nanotechnology
Organic chemistry
Science Experiments
Science Instruction
Science Laboratories
Secondary School Science
Secondary school students
Students
Sustainability
Sustainable development
Wastewater treatment
Water Pollution
Water treatment
Brazil
First-Year Undergraduate/General
Hands-On Learning/Manipulatives
Laboratory Instruction
Colloids
Interdisciplinary/Multidisciplinary
High School/Introductory Chemistry
Inquiry-Based/Discovery Learning
Magnetic Properties
Environmental Chemistry
Nanotechnology
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0021-9584
1938-1328
DOI:10.1021/acs.jchemed.6b00172