Zeolitic imidazolate framework-67 (ZIF-67) rhombic dodecahedrons as full-spectrum light harvesting photocatalyst for environmental remediation

Hanbit Park, D. Amaranatha Reddy, Yujin Kim, Rory Ma, Jiha Choi, Tae Kyu Kim, Kyoung Seok Lee

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The inferior utilization efficiency of light is the main obstacle to the practical application of traditional photocatalysts such as TiO2 and ZnO. In this regard, the development of novel photocatalysts with the capability of harvesting full spectrum light (from ultraviolet (UV) to near-infrared (NIR)) energy is a promising solution for solar energy conversion and environmental remediation. Here, we report the discovery of a single material that can harvest UV, visible (VIS), and NIR radiations to decompose heavy metal contaminants in aqueous solution. Zeolitic imidazolate framework-67 (ZIF-67) rhombic dodecahedrons were synthesized through a facile solution approach and employed in the reduction of Cr(VI) under UV−VIS−NIR pulsed laser irradiation, which was generated from the fundamental, second and third harmonics of Nd:YAG laser, respectively. The nanostructures showed efficient Cr(VI) reduction under UV, VIS and NIR laser irradiation and the measured reduction efficiency (%) was 71.22%, 69.52%, and 40.79%, respectively after 120 min. A possible explanation for the photocatalytic activity in Cr(VI) reduction was proposed. This is the first study of its kind where pulsed laser and ZIF-67 rhombic dodecahedrons capable of harvesting full spectrum light energy have been employed for the removal of Cr(VI) from water. The extraordinary capacity of harvesting full-spectrum light and long-term stability make ZIF-67 a potential photocatalyst for environmental remediation.

Original languageEnglish
Pages (from-to)82-89
Number of pages8
JournalSolid State Sciences
Volume62
DOIs
Publication statusPublished - 2016 Dec 1

Fingerprint

Photocatalysts
Laser beam effects
Pulsed lasers
pulsed lasers
near infrared radiation
Infrared radiation
solar energy conversion
irradiation
Infrared lasers
heavy metals
Heavy Metals
Energy conversion
infrared lasers
Solar energy
Heavy metals
contaminants
YAG lasers
Nanostructures
Impurities
aqueous solutions

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Park, Hanbit ; Amaranatha Reddy, D. ; Kim, Yujin ; Ma, Rory ; Choi, Jiha ; Kim, Tae Kyu ; Lee, Kyoung Seok. / Zeolitic imidazolate framework-67 (ZIF-67) rhombic dodecahedrons as full-spectrum light harvesting photocatalyst for environmental remediation. In: Solid State Sciences. 2016 ; Vol. 62. pp. 82-89.
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Zeolitic imidazolate framework-67 (ZIF-67) rhombic dodecahedrons as full-spectrum light harvesting photocatalyst for environmental remediation. / Park, Hanbit; Amaranatha Reddy, D.; Kim, Yujin; Ma, Rory; Choi, Jiha; Kim, Tae Kyu; Lee, Kyoung Seok.

In: Solid State Sciences, Vol. 62, 01.12.2016, p. 82-89.

Research output: Contribution to journalArticle

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T1 - Zeolitic imidazolate framework-67 (ZIF-67) rhombic dodecahedrons as full-spectrum light harvesting photocatalyst for environmental remediation

AU - Park, Hanbit

AU - Amaranatha Reddy, D.

AU - Kim, Yujin

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AU - Choi, Jiha

AU - Kim, Tae Kyu

AU - Lee, Kyoung Seok

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M3 - Article

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