Study on behaviour and mechanism of Cu2+ ion release from Cu bearing antibacterial stainless steel

S. Zhang; C. Yang; Guogang Ren; L. Ren

doi:10.1179/1753555714Y.0000000236

Study on behaviour and mechanism of Cu²⁺ ion release from Cu bearing antibacterial stainless steel

S. Zhang, C. Yang, Guogang Ren, L. Ren

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

34 Citations (Scopus)

27 Downloads (Pure)

Abstract

Cu bearing stainless steels (Cu SS) possess antibacterial ability due to the release of Cu2+ ions. However, the release mechanism of Cu2+ ions from the steel is still unclear. Therefore, the passive film on the surface of Cu SS, the reason of Cu2+ ions release and chemical reactions during Cu2+ ions release were studied by means of X-ray photoelectron spectroscopy analysis and electrochemical measurements. According to the results, the release mechanism of Cu2+ ions release from the Cu SS can be proposed as following: Cu rich phases in the steel promote the segregation of surrounding C and Cr to form Cr<inf>23</inf>C<inf>6</inf>, which affects the integrity and stability of the Cr<inf>2</inf>O<inf>3</inf> passive film surrounding themselves. Thus, the Cu rich phases are easy to be attacked as weak points in the corrosive media, which led to serial chemical reactions occurring while promoting the releases of Cu2+ ions and playing the antibacterial role.

Original language	English
Pages (from-to)	B126-B132
Journal	Materials Technology
Volume	30
Issue number	B2
Early online date	10 Nov 2014
DOIs	https://doi.org/10.1179/1753555714Y.0000000236
Publication status	Published - 30 Aug 2015

Keywords

Antibacterial
Cu bearing stainless steel
Cu ions
Release mechanism of Cu2+ ions

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10.1179/1753555714Y.0000000236

Cite this

@article{224a900c65fc4a87ad6874930bdf275b,

title = "Study on behaviour and mechanism of Cu2+ ion release from Cu bearing antibacterial stainless steel",

abstract = "Cu bearing stainless steels (Cu SS) possess antibacterial ability due to the release of Cu2+ ions. However, the release mechanism of Cu2+ ions from the steel is still unclear. Therefore, the passive film on the surface of Cu SS, the reason of Cu2+ ions release and chemical reactions during Cu2+ ions release were studied by means of X-ray photoelectron spectroscopy analysis and electrochemical measurements. According to the results, the release mechanism of Cu2+ ions release from the Cu SS can be proposed as following: Cu rich phases in the steel promote the segregation of surrounding C and Cr to form Cr23C6, which affects the integrity and stability of the Cr2O3 passive film surrounding themselves. Thus, the Cu rich phases are easy to be attacked as weak points in the corrosive media, which led to serial chemical reactions occurring while promoting the releases of Cu2+ ions and playing the antibacterial role.",

keywords = "Antibacterial, Cu bearing stainless steel, Cu ions, Release mechanism of Cu2+ ions",

author = "S. Zhang and C. Yang and Guogang Ren and L. Ren",

note = "S. Zhang, C. Yang, G. Ren & L. Ren, 'Study on behviou and mechanism of Cu2+ ion relese from Cu bearing antibacterial stainless steel', Materials Technology: Advanced Performance Materials, Vol. 30, 2015, Issue Sup6: Part B2: Antimicrobial materials, published online 10 November 2014. The version of record is available online at doi:http://www.tandfonline.com/doi/abs/10.1179/1753555714Y.0000000236 Taylor & Francis",

year = "2015",

month = aug,

day = "30",

doi = "10.1179/1753555714Y.0000000236",

language = "English",

volume = "30",

pages = "B126--B132",

journal = "Materials Technology",

issn = "1066-7857",

publisher = "Maney Publishing",

number = "B2",

}

TY - JOUR

T1 - Study on behaviour and mechanism of Cu2+ ion release from Cu bearing antibacterial stainless steel

AU - Zhang, S.

AU - Yang, C.

AU - Ren, Guogang

AU - Ren, L.

N1 - S. Zhang, C. Yang, G. Ren & L. Ren, 'Study on behviou and mechanism of Cu2+ ion relese from Cu bearing antibacterial stainless steel', Materials Technology: Advanced Performance Materials, Vol. 30, 2015, Issue Sup6: Part B2: Antimicrobial materials, published online 10 November 2014. The version of record is available online at doi:http://www.tandfonline.com/doi/abs/10.1179/1753555714Y.0000000236 Taylor & Francis

PY - 2015/8/30

Y1 - 2015/8/30

N2 - Cu bearing stainless steels (Cu SS) possess antibacterial ability due to the release of Cu2+ ions. However, the release mechanism of Cu2+ ions from the steel is still unclear. Therefore, the passive film on the surface of Cu SS, the reason of Cu2+ ions release and chemical reactions during Cu2+ ions release were studied by means of X-ray photoelectron spectroscopy analysis and electrochemical measurements. According to the results, the release mechanism of Cu2+ ions release from the Cu SS can be proposed as following: Cu rich phases in the steel promote the segregation of surrounding C and Cr to form Cr23C6, which affects the integrity and stability of the Cr2O3 passive film surrounding themselves. Thus, the Cu rich phases are easy to be attacked as weak points in the corrosive media, which led to serial chemical reactions occurring while promoting the releases of Cu2+ ions and playing the antibacterial role.

AB - Cu bearing stainless steels (Cu SS) possess antibacterial ability due to the release of Cu2+ ions. However, the release mechanism of Cu2+ ions from the steel is still unclear. Therefore, the passive film on the surface of Cu SS, the reason of Cu2+ ions release and chemical reactions during Cu2+ ions release were studied by means of X-ray photoelectron spectroscopy analysis and electrochemical measurements. According to the results, the release mechanism of Cu2+ ions release from the Cu SS can be proposed as following: Cu rich phases in the steel promote the segregation of surrounding C and Cr to form Cr23C6, which affects the integrity and stability of the Cr2O3 passive film surrounding themselves. Thus, the Cu rich phases are easy to be attacked as weak points in the corrosive media, which led to serial chemical reactions occurring while promoting the releases of Cu2+ ions and playing the antibacterial role.

KW - Antibacterial

KW - Cu bearing stainless steel

KW - Cu ions

KW - Release mechanism of Cu2+ ions

U2 - 10.1179/1753555714Y.0000000236

DO - 10.1179/1753555714Y.0000000236

M3 - Article

SN - 1066-7857

VL - 30

SP - B126-B132

JO - Materials Technology

JF - Materials Technology

IS - B2

ER -

Study on behaviour and mechanism of Cu2+ ion release from Cu bearing antibacterial stainless steel

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Keywords

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Study on behaviour and mechanism of Cu²⁺ ion release from Cu bearing antibacterial stainless steel