Graft copolymer templated synthesis of mesoporous MgO/TiO 2 mixed oxide nanoparticles and their CO 2 adsorption capacities

Harim Jeon, Yoon Jae Min, Sung Hoon Ahn, Seok Min Hong, jong shik shin, Jong Hak Kim, Ki Bong Lee

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Mesoporous mixed oxide nanoparticles consisting of MgO and TiO 2 were synthesized via a sol-gel process by templating poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer. The mesoporous structures and morphologies of the MgO/TiO 2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO 2 mixed oxide exhibited much higher CO 2 adsorption capacity (0.477mol CO 2 /kg sorbent for 40:60 MgO/TiO 2 ) than pure MgO (0.074) or TiO 2 (0.063). This result arises from the increase in surface area and pore volume of the mixed oxide due to the formation of bimodal pores.

Original languageEnglish
Pages (from-to)75-81
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume414
DOIs
Publication statusPublished - 2012 Nov 20

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Graft copolymers
mixed oxides
Carbon Monoxide
Oxides
copolymers
Nanoparticles
Adsorption
nanoparticles
adsorption
synthesis
porosity
sorbents
sol-gel processes
Sorbents
Sol-gel process
Desorption
Nitrogen
desorption
chlorides
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

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title = "Graft copolymer templated synthesis of mesoporous MgO/TiO 2 mixed oxide nanoparticles and their CO 2 adsorption capacities",
abstract = "Mesoporous mixed oxide nanoparticles consisting of MgO and TiO 2 were synthesized via a sol-gel process by templating poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer. The mesoporous structures and morphologies of the MgO/TiO 2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO 2 mixed oxide exhibited much higher CO 2 adsorption capacity (0.477mol CO 2 /kg sorbent for 40:60 MgO/TiO 2 ) than pure MgO (0.074) or TiO 2 (0.063). This result arises from the increase in surface area and pore volume of the mixed oxide due to the formation of bimodal pores.",
author = "Harim Jeon and Min, {Yoon Jae} and Ahn, {Sung Hoon} and Hong, {Seok Min} and shin, {jong shik} and Kim, {Jong Hak} and Lee, {Ki Bong}",
year = "2012",
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Graft copolymer templated synthesis of mesoporous MgO/TiO 2 mixed oxide nanoparticles and their CO 2 adsorption capacities . / Jeon, Harim; Min, Yoon Jae; Ahn, Sung Hoon; Hong, Seok Min; shin, jong shik; Kim, Jong Hak; Lee, Ki Bong.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 414, 20.11.2012, p. 75-81.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Jeon, Harim

AU - Min, Yoon Jae

AU - Ahn, Sung Hoon

AU - Hong, Seok Min

AU - shin, jong shik

AU - Kim, Jong Hak

AU - Lee, Ki Bong

PY - 2012/11/20

Y1 - 2012/11/20

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AB - Mesoporous mixed oxide nanoparticles consisting of MgO and TiO 2 were synthesized via a sol-gel process by templating poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer. The mesoporous structures and morphologies of the MgO/TiO 2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO 2 mixed oxide exhibited much higher CO 2 adsorption capacity (0.477mol CO 2 /kg sorbent for 40:60 MgO/TiO 2 ) than pure MgO (0.074) or TiO 2 (0.063). This result arises from the increase in surface area and pore volume of the mixed oxide due to the formation of bimodal pores.

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