Abstract
We report the development of a novel, simple, and highly effective polymeric material with nanoscale dimensions for use in removal of heavy metal ions from aqueous media. The nanomaterial was ∼ 200 nm in diameter and several microns long and was fabricated in the form of nanowires via template-directed electrochemical polymerization. The nanowires were covalently modified by cysteine, a nonessential amino acid with very high binding constants for selected toxic heavy metal ions, such as, As 3+ , Cd 2+ , Pb 2+ , and Cu 2+ . We demonstrated rapid and efficient removal of As 3+ , Cd 2+ , Pb 2+ , and Cu 2+ ions from natural water samples. The arsenic removal capacity was found to be ∼ 160 mg As 3+ per gram of the material, a substantially greater removal capacity than other materials reported to date. The removal capacity of other heavy metals ions was also rapid and effective, their concentrations becoming undetectable in a matter of minutes after treatment with the nanowires. These nanowires have demonstrated potential that could lead to a low cost, novel, and highly effective technique for use in treatment of drinking water and for other environmental remediation purposes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 308-313 |
| Number of pages | 6 |
| Journal | Journal of Applied Polymer Science |
| Volume | 116 |
| Issue number | 1 |
| DOIs | |
| State | Published - Apr 5 2010 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry
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Rapid and efficient removal of heavy metal ions from aqueous media using cysteine-modified polymer nanowires. / Tolani, Sagar; Mugweru, Amos; Craig, Michael; Wanekaya, Adam K.
In: Journal of Applied Polymer Science, Vol. 116, No. 1, 05.04.2010, p. 308-313.Research output: Contribution to journal › Article
TY - JOUR
T1 - Rapid and efficient removal of heavy metal ions from aqueous media using cysteine-modified polymer nanowires
AU - Tolani, Sagar
AU - Mugweru, Amos
AU - Craig, Michael
AU - Wanekaya, Adam K.
PY - 2010/4/5
Y1 - 2010/4/5
N2 - We report the development of a novel, simple, and highly effective polymeric material with nanoscale dimensions for use in removal of heavy metal ions from aqueous media. The nanomaterial was ∼ 200 nm in diameter and several microns long and was fabricated in the form of nanowires via template-directed electrochemical polymerization. The nanowires were covalently modified by cysteine, a nonessential amino acid with very high binding constants for selected toxic heavy metal ions, such as, As 3+ , Cd 2+ , Pb 2+ , and Cu 2+ . We demonstrated rapid and efficient removal of As 3+ , Cd 2+ , Pb 2+ , and Cu 2+ ions from natural water samples. The arsenic removal capacity was found to be ∼ 160 mg As 3+ per gram of the material, a substantially greater removal capacity than other materials reported to date. The removal capacity of other heavy metals ions was also rapid and effective, their concentrations becoming undetectable in a matter of minutes after treatment with the nanowires. These nanowires have demonstrated potential that could lead to a low cost, novel, and highly effective technique for use in treatment of drinking water and for other environmental remediation purposes.
AB - We report the development of a novel, simple, and highly effective polymeric material with nanoscale dimensions for use in removal of heavy metal ions from aqueous media. The nanomaterial was ∼ 200 nm in diameter and several microns long and was fabricated in the form of nanowires via template-directed electrochemical polymerization. The nanowires were covalently modified by cysteine, a nonessential amino acid with very high binding constants for selected toxic heavy metal ions, such as, As 3+ , Cd 2+ , Pb 2+ , and Cu 2+ . We demonstrated rapid and efficient removal of As 3+ , Cd 2+ , Pb 2+ , and Cu 2+ ions from natural water samples. The arsenic removal capacity was found to be ∼ 160 mg As 3+ per gram of the material, a substantially greater removal capacity than other materials reported to date. The removal capacity of other heavy metals ions was also rapid and effective, their concentrations becoming undetectable in a matter of minutes after treatment with the nanowires. These nanowires have demonstrated potential that could lead to a low cost, novel, and highly effective technique for use in treatment of drinking water and for other environmental remediation purposes.
UR - http://www.scopus.com/inward/record.url?scp=75449089884&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=75449089884&partnerID=8YFLogxK
U2 - 10.1002/app.31538
DO - 10.1002/app.31538
M3 - Article
AN - SCOPUS:75449089884
VL - 116
SP - 308
EP - 313
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 1
ER -