α-MnO 2 activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions

Edy Saputra; Syaifullah Muhammad; Hongqi Sun; Archana Patel; Pradeep Shukla; Z. H. Zhu; Shaobin Wang

doi:10.1016/j.catcom.2012.05.014

α-MnO ₂ activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions

Edy Saputra, Syaifullah Muhammad, Hongqi Sun, Archana Patel, Pradeep Shukla, Z. H. Zhu, Shaobin Wang

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

140 Citations (Scopus)

Abstract

Several α-MnO ₂ catalysts in the forms of nanosphere, nanorod and nanowire were synthesized, characterized and tested in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions. The α-MnO ₂ materials exhibited varying activities in activation of peroxymonosulfate to produce sulfate radicals for phenol degradation depending on structure and morphology. Crystalline structure of MnO ₂ is more important than porous structure in influencing the activity because crystalline α-MnO ₂ exhibited higher phenol degradation. Nanowired α-MnO ₂ presented the highest activity with stable performance while the mesoporous α-MnO ₂ nanosphere with amorphous structure presented the lowest activity and stability. Kinetic study showed that phenol degradation on α-MnO ₂ followed the first order kinetics.

Original language	English
Pages (from-to)	144-148
Number of pages	5
Journal	Catalysis Communications
Volume	26
DOIs	https://doi.org/10.1016/j.catcom.2012.05.014
Publication status	Published - 5 Sept 2012
Externally published	Yes

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10.1016/j.catcom.2012.05.014

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title = "α-MnO 2 activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions",

abstract = "Several α-MnO 2 catalysts in the forms of nanosphere, nanorod and nanowire were synthesized, characterized and tested in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions. The α-MnO 2 materials exhibited varying activities in activation of peroxymonosulfate to produce sulfate radicals for phenol degradation depending on structure and morphology. Crystalline structure of MnO 2 is more important than porous structure in influencing the activity because crystalline α-MnO 2 exhibited higher phenol degradation. Nanowired α-MnO 2 presented the highest activity with stable performance while the mesoporous α-MnO 2 nanosphere with amorphous structure presented the lowest activity and stability. Kinetic study showed that phenol degradation on α-MnO 2 followed the first order kinetics.",

keywords = "Advanced oxidation, Mesoporous MnO, Peroxymonosulfate activation, Water treatment",

author = "Edy Saputra and Syaifullah Muhammad and Hongqi Sun and Archana Patel and Pradeep Shukla and Zhu, {Z. H.} and Shaobin Wang",

year = "2012",

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doi = "10.1016/j.catcom.2012.05.014",

language = "English",

volume = "26",

pages = "144--148",

journal = "Catalysis Communications",

issn = "1566-7367",

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TY - JOUR

T1 - α-MnO 2 activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions

AU - Saputra, Edy

AU - Muhammad, Syaifullah

AU - Sun, Hongqi

AU - Patel, Archana

AU - Shukla, Pradeep

AU - Zhu, Z. H.

AU - Wang, Shaobin

PY - 2012/9/5

Y1 - 2012/9/5

N2 - Several α-MnO 2 catalysts in the forms of nanosphere, nanorod and nanowire were synthesized, characterized and tested in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions. The α-MnO 2 materials exhibited varying activities in activation of peroxymonosulfate to produce sulfate radicals for phenol degradation depending on structure and morphology. Crystalline structure of MnO 2 is more important than porous structure in influencing the activity because crystalline α-MnO 2 exhibited higher phenol degradation. Nanowired α-MnO 2 presented the highest activity with stable performance while the mesoporous α-MnO 2 nanosphere with amorphous structure presented the lowest activity and stability. Kinetic study showed that phenol degradation on α-MnO 2 followed the first order kinetics.

AB - Several α-MnO 2 catalysts in the forms of nanosphere, nanorod and nanowire were synthesized, characterized and tested in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions. The α-MnO 2 materials exhibited varying activities in activation of peroxymonosulfate to produce sulfate radicals for phenol degradation depending on structure and morphology. Crystalline structure of MnO 2 is more important than porous structure in influencing the activity because crystalline α-MnO 2 exhibited higher phenol degradation. Nanowired α-MnO 2 presented the highest activity with stable performance while the mesoporous α-MnO 2 nanosphere with amorphous structure presented the lowest activity and stability. Kinetic study showed that phenol degradation on α-MnO 2 followed the first order kinetics.

KW - Advanced oxidation

KW - Mesoporous MnO

KW - Peroxymonosulfate activation

KW - Water treatment

UR - http://www.scopus.com/inward/record.url?scp=84861881515&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2012.05.014

DO - 10.1016/j.catcom.2012.05.014

M3 - Article

AN - SCOPUS:84861881515

SN - 1566-7367

VL - 26

SP - 144

EP - 148

JO - Catalysis Communications

JF - Catalysis Communications

ER -

α-MnO ₂ activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions

Abstract

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