Enhanced photocatalytic property of nanoporous TiO2/SiO 2 micro-particles prepared by aerosol assisted co-assembly of nanoparticles

Sun Kyung Kim; Hankwon Chang; Kuk Cho; Dae Sup Kil; Sung Wook Cho; Hee Dong Jang; Jeong Woo Choi; Jinhoon Choi

doi:10.1016/j.matlet.2011.02.028

Enhanced photocatalytic property of nanoporous TiO₂/SiO ₂ micro-particles prepared by aerosol assisted co-assembly of nanoparticles

Sun Kyung Kim
, Hankwon Chang
, Kuk Cho
, Dae Sup Kil
, Sung Wook Cho
, Hee Dong Jang^*
, Jeong Woo Choi
, Jinhoon Choi

^*Corresponding author for this work

Geography Education

Korea Institute of Geoscience and Mineral Resources
Sogang University

Research output: Contribution to journal › Journal article › peer-review

45 Scopus citations

Abstract

Nanoporous TiO₂/SiO₂ composite micro-particles were prepared by an aerosol assisted co-assembly (AACA) and their characteristics were investigated for photocatalytic application. The average diameter of resulting co-assembled TiO₂/SiO₂ particles was ranged 4-10 μm, and increased as the precursor concentration increased. The TiO ₂/SiO₂ particles were spherical in shape and pores ranged 1-100 nm in diameter. Photocatalytic activity of the as-prepared nanoporous TiO₂/SiO₂ particles was evaluated by measuring the photodegradation of methylene blue (MB) and NO_x. Furthermore, the photocatalytic activity of nanoporous TiO₂/SiO₂ particles was compared with those of commercial TiO₂ nanoparticles and nanoporous TiO₂ particles. The nanoporous TiO₂/SiO ₂ particles exhibited the highest photodegradation of MB and NO _x among three samples, which was 80% after 3 h and 55% at 10 min, respectively.

Original language	English
Pages (from-to)	3330-3332
Number of pages	3
Journal	Materials Letters
Volume	65
Issue number	21-22
DOIs	https://doi.org/10.1016/j.matlet.2011.02.028
State	Published - 2011.11

Keywords

Aerosol self-assembly
Nanoporous particles
Photocatalytic property
TiO2/SiO2 composite particles

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10.1016/j.matlet.2011.02.028

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@article{81ff6aecd20b4b028101d6052a86e452,

title = "Enhanced photocatalytic property of nanoporous TiO2/SiO 2 micro-particles prepared by aerosol assisted co-assembly of nanoparticles",

abstract = "Nanoporous TiO2/SiO2 composite micro-particles were prepared by an aerosol assisted co-assembly (AACA) and their characteristics were investigated for photocatalytic application. The average diameter of resulting co-assembled TiO2/SiO2 particles was ranged 4-10 μm, and increased as the precursor concentration increased. The TiO 2/SiO2 particles were spherical in shape and pores ranged 1-100 nm in diameter. Photocatalytic activity of the as-prepared nanoporous TiO2/SiO2 particles was evaluated by measuring the photodegradation of methylene blue (MB) and NOx. Furthermore, the photocatalytic activity of nanoporous TiO2/SiO2 particles was compared with those of commercial TiO2 nanoparticles and nanoporous TiO2 particles. The nanoporous TiO2/SiO 2 particles exhibited the highest photodegradation of MB and NO x among three samples, which was 80\% after 3 h and 55\% at 10 min, respectively.",

keywords = "Aerosol self-assembly, Nanoporous particles, Photocatalytic property, TiO2/SiO2 composite particles",

author = "Kim, \{Sun Kyung\} and Hankwon Chang and Kuk Cho and Kil, \{Dae Sup\} and Cho, \{Sung Wook\} and Jang, \{Hee Dong\} and Choi, \{Jeong Woo\} and Jinhoon Choi",

year = "2011",

month = nov,

doi = "10.1016/j.matlet.2011.02.028",

language = "English",

volume = "65",

pages = "3330--3332",

journal = "Materials Letters",

issn = "0167-577X",

number = "21-22",

}

TY - JOUR

T1 - Enhanced photocatalytic property of nanoporous TiO2/SiO 2 micro-particles prepared by aerosol assisted co-assembly of nanoparticles

AU - Kim, Sun Kyung

AU - Chang, Hankwon

AU - Cho, Kuk

AU - Kil, Dae Sup

AU - Cho, Sung Wook

AU - Jang, Hee Dong

AU - Choi, Jeong Woo

AU - Choi, Jinhoon

PY - 2011/11

Y1 - 2011/11

N2 - Nanoporous TiO2/SiO2 composite micro-particles were prepared by an aerosol assisted co-assembly (AACA) and their characteristics were investigated for photocatalytic application. The average diameter of resulting co-assembled TiO2/SiO2 particles was ranged 4-10 μm, and increased as the precursor concentration increased. The TiO 2/SiO2 particles were spherical in shape and pores ranged 1-100 nm in diameter. Photocatalytic activity of the as-prepared nanoporous TiO2/SiO2 particles was evaluated by measuring the photodegradation of methylene blue (MB) and NOx. Furthermore, the photocatalytic activity of nanoporous TiO2/SiO2 particles was compared with those of commercial TiO2 nanoparticles and nanoporous TiO2 particles. The nanoporous TiO2/SiO 2 particles exhibited the highest photodegradation of MB and NO x among three samples, which was 80% after 3 h and 55% at 10 min, respectively.

AB - Nanoporous TiO2/SiO2 composite micro-particles were prepared by an aerosol assisted co-assembly (AACA) and their characteristics were investigated for photocatalytic application. The average diameter of resulting co-assembled TiO2/SiO2 particles was ranged 4-10 μm, and increased as the precursor concentration increased. The TiO 2/SiO2 particles were spherical in shape and pores ranged 1-100 nm in diameter. Photocatalytic activity of the as-prepared nanoporous TiO2/SiO2 particles was evaluated by measuring the photodegradation of methylene blue (MB) and NOx. Furthermore, the photocatalytic activity of nanoporous TiO2/SiO2 particles was compared with those of commercial TiO2 nanoparticles and nanoporous TiO2 particles. The nanoporous TiO2/SiO 2 particles exhibited the highest photodegradation of MB and NO x among three samples, which was 80% after 3 h and 55% at 10 min, respectively.

KW - Aerosol self-assembly

KW - Nanoporous particles

KW - Photocatalytic property

KW - TiO2/SiO2 composite particles

UR - https://www.scopus.com/pages/publications/79961102830

U2 - 10.1016/j.matlet.2011.02.028

DO - 10.1016/j.matlet.2011.02.028

M3 - Journal article

AN - SCOPUS:79961102830

SN - 0167-577X

VL - 65

SP - 3330

EP - 3332

JO - Materials Letters

JF - Materials Letters

IS - 21-22

ER -

Enhanced photocatalytic property of nanoporous TiO₂/SiO ₂ micro-particles prepared by aerosol assisted co-assembly of nanoparticles

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Keywords

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