Graft copolymer templated synthesis of mesoporous MgO/TiO2 mixed oxide nanoparticles and their CO2 adsorption capacities

Harim Jeon; Yoon Jae Min; Sung Hoon Ahn; Seok Min Hong; Jong Shik Shin; Jong Hak Kim; Ki Bong Lee

doi:10.1016/j.colsurfa.2012.08.009

Graft copolymer templated synthesis of mesoporous MgO/TiO₂ mixed oxide nanoparticles and their CO₂ 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 journal › Article › peer-review

45 Citations (Scopus)

Abstract

Mesoporous mixed oxide nanoparticles consisting of MgO and TiO₂ 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/TiO₂ mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO₂ mixed oxide exhibited much higher CO₂ adsorption capacity (0.477mol CO₂/kg sorbent for 40:60 MgO/TiO₂) than pure MgO (0.074) or TiO₂ (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 language	English
Pages (from-to)	75-81
Number of pages	7
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	414
DOIs	https://doi.org/10.1016/j.colsurfa.2012.08.009
Publication status	Published - 2012 Nov 20

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation (NRF) grant funded by the Korean government (MEST) through the Korea CCS R&D Center, Core Research Program (2012R1A2A2A02011268) and the Basic Science Research Program (2012-008941).

Keywords

Graft copolymer
Magnesium oxide
Porous material
Sol-gel process
Titanium oxide

ASJC Scopus subject areas

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

Access to Document

10.1016/j.colsurfa.2012.08.009

Cite this

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title = "Graft copolymer templated synthesis of mesoporous MgO/TiO2 mixed oxide nanoparticles and their CO2 adsorption capacities",

abstract = "Mesoporous mixed oxide nanoparticles consisting of MgO and TiO2 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/TiO2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO2 mixed oxide exhibited much higher CO2 adsorption capacity (0.477mol CO2/kg sorbent for 40:60 MgO/TiO2) than pure MgO (0.074) or TiO2 (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.",

keywords = "Graft copolymer, Magnesium oxide, Porous material, Sol-gel process, Titanium oxide",

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}",

note = "Funding Information: This work was supported by a National Research Foundation (NRF) grant funded by the Korean government (MEST) through the Korea CCS R&D Center, Core Research Program (2012R1A2A2A02011268) and the Basic Science Research Program (2012-008941).",

year = "2012",

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doi = "10.1016/j.colsurfa.2012.08.009",

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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

N1 - Funding Information: This work was supported by a National Research Foundation (NRF) grant funded by the Korean government (MEST) through the Korea CCS R&D Center, Core Research Program (2012R1A2A2A02011268) and the Basic Science Research Program (2012-008941).

PY - 2012/11/20

Y1 - 2012/11/20

N2 - Mesoporous mixed oxide nanoparticles consisting of MgO and TiO2 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/TiO2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO2 mixed oxide exhibited much higher CO2 adsorption capacity (0.477mol CO2/kg sorbent for 40:60 MgO/TiO2) than pure MgO (0.074) or TiO2 (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.

AB - Mesoporous mixed oxide nanoparticles consisting of MgO and TiO2 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/TiO2 mixed oxides were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and nitrogen adsorption/desorption analysis. Interestingly, MgO/TiO2 mixed oxide exhibited much higher CO2 adsorption capacity (0.477mol CO2/kg sorbent for 40:60 MgO/TiO2) than pure MgO (0.074) or TiO2 (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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