Solution combustion synthesis of Co oxide-based catalysts for phenol degradation in aqueous solution

Hanwen Liang; Ying Yue Ting; Hongqi Sun; Ha Ming Ang; Moses O. Tadé; Shaobin Wang

doi:10.1016/j.jcis.2012.01.043

Solution combustion synthesis of Co oxide-based catalysts for phenol degradation in aqueous solution

Hanwen Liang
, Ying Yue Ting
, Hongqi Sun
, Ha Ming Ang
, Moses O. Tadé
, Shaobin Wang

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

49 Citations (Scopus)

Abstract

Solution combustion using urea as a fuel was employed to synthesise Co oxide and Al ₂O ₃-, SiO ₂- and TiO ₂-supported Co oxide catalysts. The catalysts were characterised using several techniques such as N ₂ adsorption/desorption, XRD, FTIR, UV-vis diffuse reflectance and SEM-EDX, and their catalytic activity was evaluated in phenol degradation in aqueous solution with sulphate radicals. Solution combustion is a simple and effective method in preparation of supported Co catalysts. Co ₃O ₄ was the major Co crystal phase in the samples prepared via the combustion synthesis. Bulk Co ₃O ₄ particles were not effective in reaction, but supported Co oxides showed higher activity than unsupported Co oxide. The supports influenced Co dispersion and catalytic activity. Co/TiO ₂ exhibited the highest activity, but it deactivated much faster than other two supported catalysts. Co/SiO ₂ showed a comparable activity to Co/Al ₂O ₃ and the best stability among the three Al ₂O ₃-, SiO ₂- and TiO ₂-supported Co catalysts.

Original language	English
Pages (from-to)	58-62
Number of pages	5
Journal	Journal of Colloid and Interface Science
Volume	372
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2012.01.043
Publication status	Published - 15 Apr 2012
Externally published	Yes

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title = "Solution combustion synthesis of Co oxide-based catalysts for phenol degradation in aqueous solution",

abstract = "Solution combustion using urea as a fuel was employed to synthesise Co oxide and Al 2O 3-, SiO 2- and TiO 2-supported Co oxide catalysts. The catalysts were characterised using several techniques such as N 2 adsorption/desorption, XRD, FTIR, UV-vis diffuse reflectance and SEM-EDX, and their catalytic activity was evaluated in phenol degradation in aqueous solution with sulphate radicals. Solution combustion is a simple and effective method in preparation of supported Co catalysts. Co 3O 4 was the major Co crystal phase in the samples prepared via the combustion synthesis. Bulk Co 3O 4 particles were not effective in reaction, but supported Co oxides showed higher activity than unsupported Co oxide. The supports influenced Co dispersion and catalytic activity. Co/TiO 2 exhibited the highest activity, but it deactivated much faster than other two supported catalysts. Co/SiO 2 showed a comparable activity to Co/Al 2O 3 and the best stability among the three Al 2O 3-, SiO 2- and TiO 2-supported Co catalysts.",

keywords = "Co oxide, Phenol degradation, Solution synthesis, Urea fuel, Water treatment",

author = "Hanwen Liang and Ting, \{Ying Yue\} and Hongqi Sun and Ang, \{Ha Ming\} and Tad{\'e}, \{Moses O.\} and Shaobin Wang",

year = "2012",

month = apr,

day = "15",

doi = "10.1016/j.jcis.2012.01.043",

language = "English",

volume = "372",

pages = "58--62",

journal = "Journal of Colloid and Interface Science",

issn = "0021-9797",

publisher = "Academic Press",

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TY - JOUR

T1 - Solution combustion synthesis of Co oxide-based catalysts for phenol degradation in aqueous solution

AU - Liang, Hanwen

AU - Ting, Ying Yue

AU - Sun, Hongqi

AU - Ang, Ha Ming

AU - Tadé, Moses O.

AU - Wang, Shaobin

PY - 2012/4/15

Y1 - 2012/4/15

N2 - Solution combustion using urea as a fuel was employed to synthesise Co oxide and Al 2O 3-, SiO 2- and TiO 2-supported Co oxide catalysts. The catalysts were characterised using several techniques such as N 2 adsorption/desorption, XRD, FTIR, UV-vis diffuse reflectance and SEM-EDX, and their catalytic activity was evaluated in phenol degradation in aqueous solution with sulphate radicals. Solution combustion is a simple and effective method in preparation of supported Co catalysts. Co 3O 4 was the major Co crystal phase in the samples prepared via the combustion synthesis. Bulk Co 3O 4 particles were not effective in reaction, but supported Co oxides showed higher activity than unsupported Co oxide. The supports influenced Co dispersion and catalytic activity. Co/TiO 2 exhibited the highest activity, but it deactivated much faster than other two supported catalysts. Co/SiO 2 showed a comparable activity to Co/Al 2O 3 and the best stability among the three Al 2O 3-, SiO 2- and TiO 2-supported Co catalysts.

AB - Solution combustion using urea as a fuel was employed to synthesise Co oxide and Al 2O 3-, SiO 2- and TiO 2-supported Co oxide catalysts. The catalysts were characterised using several techniques such as N 2 adsorption/desorption, XRD, FTIR, UV-vis diffuse reflectance and SEM-EDX, and their catalytic activity was evaluated in phenol degradation in aqueous solution with sulphate radicals. Solution combustion is a simple and effective method in preparation of supported Co catalysts. Co 3O 4 was the major Co crystal phase in the samples prepared via the combustion synthesis. Bulk Co 3O 4 particles were not effective in reaction, but supported Co oxides showed higher activity than unsupported Co oxide. The supports influenced Co dispersion and catalytic activity. Co/TiO 2 exhibited the highest activity, but it deactivated much faster than other two supported catalysts. Co/SiO 2 showed a comparable activity to Co/Al 2O 3 and the best stability among the three Al 2O 3-, SiO 2- and TiO 2-supported Co catalysts.

KW - Co oxide

KW - Phenol degradation

KW - Solution synthesis

KW - Urea fuel

KW - Water treatment

UR - https://www.scopus.com/pages/publications/84862777256

U2 - 10.1016/j.jcis.2012.01.043

DO - 10.1016/j.jcis.2012.01.043

M3 - Article

C2 - 22336327

AN - SCOPUS:84862777256

SN - 0021-9797

VL - 372

SP - 58

EP - 62

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 1

ER -

Solution combustion synthesis of Co oxide-based catalysts for phenol degradation in aqueous solution

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