Recovery of copper from a wastewater for preparation of Cu@C nanoparticles

Y. M. Chiu, C. H. Huang, F. C. Chang, H. Y. Kang, Hong-Paul Wang

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Copper in the chemical mechanical polishing (CMP) wastewater has been effectively chelated with starch at the atomic ratios of carbon (in starch) to Cu (in wastewater) of 3-42. By carbonization of the Cu2+-starch complexes at 623 K for 30 min, nanosize-controllable metallic copper (Cu) embedded in the carbon shells (thickness = 3-5 nm) (Cu@C) can be formed. The carbon shells consisted of mainly diamond and graphite observed by Raman can prevent the nanosize core Cu from being oxidized and aggregated. Notably, by manipulating the C/Cu ratios, nanosize Cu ranging from 6 to 40 nm can be obtained.

Original languageEnglish
Pages (from-to)279-282
Number of pages4
JournalSustainable Environment Research
Volume21
Issue number4
Publication statusPublished - 2011 Jan 1

Fingerprint

Starch
starch
Wastewater
Nanoparticles
copper
Copper
wastewater
Recovery
Carbon
carbon
shell
Chemical mechanical polishing
Carbonization
graphite
diamond
Diamonds
Graphite
nanoparticle

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

Cite this

Chiu, Y. M., Huang, C. H., Chang, F. C., Kang, H. Y., & Wang, H-P. (2011). Recovery of copper from a wastewater for preparation of Cu@C nanoparticles. Sustainable Environment Research, 21(4), 279-282.
Chiu, Y. M. ; Huang, C. H. ; Chang, F. C. ; Kang, H. Y. ; Wang, Hong-Paul. / Recovery of copper from a wastewater for preparation of Cu@C nanoparticles. In: Sustainable Environment Research. 2011 ; Vol. 21, No. 4. pp. 279-282.
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Chiu, YM, Huang, CH, Chang, FC, Kang, HY & Wang, H-P 2011, 'Recovery of copper from a wastewater for preparation of Cu@C nanoparticles', Sustainable Environment Research, vol. 21, no. 4, pp. 279-282.

Recovery of copper from a wastewater for preparation of Cu@C nanoparticles. / Chiu, Y. M.; Huang, C. H.; Chang, F. C.; Kang, H. Y.; Wang, Hong-Paul.

In: Sustainable Environment Research, Vol. 21, No. 4, 01.01.2011, p. 279-282.

Research output: Contribution to journalArticle

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T1 - Recovery of copper from a wastewater for preparation of Cu@C nanoparticles

AU - Chiu, Y. M.

AU - Huang, C. H.

AU - Chang, F. C.

AU - Kang, H. Y.

AU - Wang, Hong-Paul

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AB - Copper in the chemical mechanical polishing (CMP) wastewater has been effectively chelated with starch at the atomic ratios of carbon (in starch) to Cu (in wastewater) of 3-42. By carbonization of the Cu2+-starch complexes at 623 K for 30 min, nanosize-controllable metallic copper (Cu) embedded in the carbon shells (thickness = 3-5 nm) (Cu@C) can be formed. The carbon shells consisted of mainly diamond and graphite observed by Raman can prevent the nanosize core Cu from being oxidized and aggregated. Notably, by manipulating the C/Cu ratios, nanosize Cu ranging from 6 to 40 nm can be obtained.

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