Porous zirconium complex-layered titanate nanohybrids with gas adsorption and photocatalytic activity

In Young Kim; Kang Yoon Lee; Tae Woo Kim; Seong Ju Hwang

doi:10.1016/j.matlet.2010.12.002

Porous zirconium complex-layered titanate nanohybrids with gas adsorption and photocatalytic activity

In Young Kim, Kang Yoon Lee, Tae Woo Kim, Seong Ju Hwang

Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Porous zirconium complex-layered titanate nanohybrids were synthesized by reassembling reaction between negative-charged layered titanate nanosheets and positive-charged zirconium complex. According to powder X-ray diffraction and electron microscopy, titanate monolayers were interstratified with zirconium species with the repeating unit of ~ 1.2 nm. X-ray absorption spectroscopy at Zr K-edge and Ti K-edge clearly demonstrated that mononuclear zirconium complex was intercalated into lepidocrocite-structured titanate layers. From N ₂ adsorption-desorption isotherm measurement, the hybridization reaction produced highly porous material with the expanded surface area of ~ 176 m²g^{- 1}. The zirconium complex-layered titanate nanohybrids showed functionalities not only for adsorption of CO₂ gas but also for photodegradation of organic molecules. This finding underscored that the reassembling of layered metal oxide with zirconium ions provides powerful ways to synthesize highly porous materials applicable for gas adsorbents and photocatalysts.

Original language	English
Pages (from-to)	894-896
Number of pages	3
Journal	Materials Letters
Volume	65
Issue number	5
DOIs	https://doi.org/10.1016/j.matlet.2010.12.002
State	Published - 15 Mar 2011

Keywords

Exfoliation-reassembling
Gas adsorbent
Nanomaterials
Photocatalyst
Porosity
Titanium oxide
Zirconium complex

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10.1016/j.matlet.2010.12.002

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title = "Porous zirconium complex-layered titanate nanohybrids with gas adsorption and photocatalytic activity",

abstract = "Porous zirconium complex-layered titanate nanohybrids were synthesized by reassembling reaction between negative-charged layered titanate nanosheets and positive-charged zirconium complex. According to powder X-ray diffraction and electron microscopy, titanate monolayers were interstratified with zirconium species with the repeating unit of ~ 1.2 nm. X-ray absorption spectroscopy at Zr K-edge and Ti K-edge clearly demonstrated that mononuclear zirconium complex was intercalated into lepidocrocite-structured titanate layers. From N 2 adsorption-desorption isotherm measurement, the hybridization reaction produced highly porous material with the expanded surface area of ~ 176 m2g- 1. The zirconium complex-layered titanate nanohybrids showed functionalities not only for adsorption of CO2 gas but also for photodegradation of organic molecules. This finding underscored that the reassembling of layered metal oxide with zirconium ions provides powerful ways to synthesize highly porous materials applicable for gas adsorbents and photocatalysts.",

keywords = "Exfoliation-reassembling, Gas adsorbent, Nanomaterials, Photocatalyst, Porosity, Titanium oxide, Zirconium complex",

author = "Kim, {In Young} and Lee, {Kang Yoon} and Kim, {Tae Woo} and Hwang, {Seong Ju}",

note = "Funding Information: This work is the outcome of manpower development program for energy & resources supported by the Ministry of Knowledge and Economy (MKE) and supported by Korea Ministry of Environment as {"}Converging Technology Project{"} ( 191-101-001 ) and by National Research Foundation of Korea Grant funded by the Korean Government ( KRF-2008-313-C00442 ). The experiments at PAL were supported in part by MOST and POSTECH . ",

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AU - Kim, In Young

AU - Lee, Kang Yoon

AU - Kim, Tae Woo

AU - Hwang, Seong Ju

N1 - Funding Information: This work is the outcome of manpower development program for energy & resources supported by the Ministry of Knowledge and Economy (MKE) and supported by Korea Ministry of Environment as "Converging Technology Project" ( 191-101-001 ) and by National Research Foundation of Korea Grant funded by the Korean Government ( KRF-2008-313-C00442 ). The experiments at PAL were supported in part by MOST and POSTECH .

PY - 2011/3/15

Y1 - 2011/3/15

N2 - Porous zirconium complex-layered titanate nanohybrids were synthesized by reassembling reaction between negative-charged layered titanate nanosheets and positive-charged zirconium complex. According to powder X-ray diffraction and electron microscopy, titanate monolayers were interstratified with zirconium species with the repeating unit of ~ 1.2 nm. X-ray absorption spectroscopy at Zr K-edge and Ti K-edge clearly demonstrated that mononuclear zirconium complex was intercalated into lepidocrocite-structured titanate layers. From N 2 adsorption-desorption isotherm measurement, the hybridization reaction produced highly porous material with the expanded surface area of ~ 176 m2g- 1. The zirconium complex-layered titanate nanohybrids showed functionalities not only for adsorption of CO2 gas but also for photodegradation of organic molecules. This finding underscored that the reassembling of layered metal oxide with zirconium ions provides powerful ways to synthesize highly porous materials applicable for gas adsorbents and photocatalysts.

AB - Porous zirconium complex-layered titanate nanohybrids were synthesized by reassembling reaction between negative-charged layered titanate nanosheets and positive-charged zirconium complex. According to powder X-ray diffraction and electron microscopy, titanate monolayers were interstratified with zirconium species with the repeating unit of ~ 1.2 nm. X-ray absorption spectroscopy at Zr K-edge and Ti K-edge clearly demonstrated that mononuclear zirconium complex was intercalated into lepidocrocite-structured titanate layers. From N 2 adsorption-desorption isotherm measurement, the hybridization reaction produced highly porous material with the expanded surface area of ~ 176 m2g- 1. The zirconium complex-layered titanate nanohybrids showed functionalities not only for adsorption of CO2 gas but also for photodegradation of organic molecules. This finding underscored that the reassembling of layered metal oxide with zirconium ions provides powerful ways to synthesize highly porous materials applicable for gas adsorbents and photocatalysts.

KW - Exfoliation-reassembling

KW - Gas adsorbent

KW - Nanomaterials

KW - Photocatalyst

KW - Porosity

KW - Titanium oxide

KW - Zirconium complex

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Porous zirconium complex-layered titanate nanohybrids with gas adsorption and photocatalytic activity

Abstract

Keywords

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