TY - JOUR
T1 - "nanoblocks"
T2 - A Playful Method to Learn about Nanotechnology-Enabled Water and Air Treatment
AU - Mulchandani, Anjali
AU - Atkinson, Ariel J.
AU - GARCIA SEGURA, Sergio
AU - Westerhoff, Paul
N1 - Publisher Copyright:
© 2019 American Chemical Society and Division of Chemical Education, Inc.
PY - 2019/4/9
Y1 - 2019/4/9
N2 - Research, patents, and start-up companies using nanotechnology are growing exponentially. The general public and young students who will be the next generation work force need to properly understand and get excited by nanotechnology to ensure its public support, acceptance, and advancement. Water and air have many pollutants that are invisible to the naked eye, and the concept of selectively removing the pollutants using nanostructured materials is difficult to convey. We developed a hands-on activity where pompoms, representing pollutants in water or air, "adsorb" to adhesive blocks, representing nanostructured adsorbents. Students compete with their choice of sorbent (one large block or 8 small "nanoblocks," both having the same unit volume) to see which sorbs/attaches more pompoms in the same period of time. Through this activity, students learn that the nanoblocks have enhanced adsorption capacity due to higher surface area to volume ratio, and therefore, the nanoblocks remove more pollutants (pompoms). This progressive and adjustable learning tool has been validated with multiple learner comprehension levels (preK-12, general public, and undergraduate) and has enabled discussions on advanced topics such as nanoscale capabilities, adsorption modeling, and new technologies to improve pollutant removal and degradation.
AB - Research, patents, and start-up companies using nanotechnology are growing exponentially. The general public and young students who will be the next generation work force need to properly understand and get excited by nanotechnology to ensure its public support, acceptance, and advancement. Water and air have many pollutants that are invisible to the naked eye, and the concept of selectively removing the pollutants using nanostructured materials is difficult to convey. We developed a hands-on activity where pompoms, representing pollutants in water or air, "adsorb" to adhesive blocks, representing nanostructured adsorbents. Students compete with their choice of sorbent (one large block or 8 small "nanoblocks," both having the same unit volume) to see which sorbs/attaches more pompoms in the same period of time. Through this activity, students learn that the nanoblocks have enhanced adsorption capacity due to higher surface area to volume ratio, and therefore, the nanoblocks remove more pollutants (pompoms). This progressive and adjustable learning tool has been validated with multiple learner comprehension levels (preK-12, general public, and undergraduate) and has enabled discussions on advanced topics such as nanoscale capabilities, adsorption modeling, and new technologies to improve pollutant removal and degradation.
KW - Demonstrations
KW - Elementary/Middle School Science
KW - Environmental Chemistry
KW - First-Year Undergraduate/General
KW - General Public
KW - Hands-On Learning/Manipulatives
KW - Nanotechnology
KW - Public Understanding/Outreach
KW - Reactions
UR - http://www.scopus.com/inward/record.url?scp=85063136935&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063136935&partnerID=8YFLogxK
U2 - 10.1021/acs.jchemed.8b00535
DO - 10.1021/acs.jchemed.8b00535
M3 - Article
AN - SCOPUS:85063136935
SN - 0021-9584
VL - 96
SP - 708
EP - 713
JO - Journal of Chemical Education
JF - Journal of Chemical Education
IS - 4
ER -