The cleanability of stainless steel as determined by X-ray photoelectron spectroscopy

Boyd, Robert; Verran, Joanna; Hall, Karen E.; Underhill, C.; Hibbert, S.; West, R. H.

doi:10.1016/s0169-4332(00)00840-0

Cited by 37 publications

(9 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The effect of charge-up was compensated by shifting the spectra in energy by using a reference value of Ti2p 3/2 . 16 After the plasma treatment, the intensities of all the peaks were drastically lower except for the peak at 289.7 eV [ Fig. The C1s spectra before and after the plasma treatment were normalized by the peak intensity of the Ti2p 3/2 spectra, respectively.…”

Section: Resultsmentioning

confidence: 99%

Superhydrophilic TiO2 surfaces generated by reactive oxygen treatment

Ishida¹,

Fujita²

2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

View full text Add to dashboard Cite

Surface texture and wetting stability of polydimethylsiloxane coated with aluminum oxide at low temperature by atomic layer deposition Site-selective electroless plating on amino-terminated diamond substrate patterned by 126 nm vacuum ultraviolet light lithographyThe authors show that superhydrophilic TiO 2 can be obtained without irradiation of the surface with ultraviolet (UV) light and concomitant excitation of electron-hole pairs. The authors demonstrate that the treatment of TiO 2 surfaces with reactive oxygen species generated by air plasma removes the surface organic contaminants, leading to almost 0 contact-angle wetting of the surface. The superhydrophilicity can be explained by the positive spreading coefficient calculated using the effective surface tensions. Our results point toward UV-light irradiation as an indirect cause of the superhydrophilicity of TiO 2 and support the hypothesis that this property arises from a self-cleaning effect based on the photo-oxidation and decomposition of organic contaminants at the surface.

show abstract

Section: Resultsmentioning

confidence: 99%

Superhydrophilic TiO2 surfaces generated by reactive oxygen treatment

Ishida¹,

Fujita²

2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

View full text Add to dashboard Cite

show abstract

“…AFM has been used previously to assess the cleanability of stainless steel used for food contact surfaces (Boyd et al ., 2001a,b; Verran et al ., 2001). Utilizing this technique, Boyd et al .…”

Section: Introductionmentioning

confidence: 99%

Multiple imaging techniques demonstrate the manipulation of surfaces to reduce bacterial contamination and corrosion

Arnold

Boothe

Сузукі

et al. 2004

Journal of Microscopy

View full text Add to dashboard Cite

SummarySurface imaging techniques were combined to determine appropriate manipulation of technologically important surfaces for commercial applications. The complementarity of the microscopy methods, scanning electron microscopy, electron probe microanalysis and atomic force microscopy assessed and correlated form and function of the surface modifications. Stainless steel disks (1 cm in diameter) were laser-cut from the same sheets of stainless steel and treated by electropolishing or left untreated for controls. Each treatment was analysed separately using each technique. First, the disks were examined by visual inspection and electron probe microanalysis for surface characteristics and elemental composition, respectively. Aliquots of bacterial suspensions (saline rinses of poultry carcasses from a commercial broiler processing plant) were then diluted in broth and monitored for growth by spectrophotometry. Stainless steel disks (1 cm in diameter) were added and the cultures were grown to sufficient density to allow attachment of bacterial cells to test surfaces. Relative differences in the surface morphology shown by atomic force microscopy, including Z ranges, roughness and other measurements, corresponded by treatment with the differences in reduction of bacterial counts shown by scanning electron microscopy. A model of wet-processing conditions tested the effects of corrosive treatment of surfaces. Less bacterial attachment occurred after corrosive treatment on controls and electropolished samples. Electropolishing significantly reduced bacterial numbers and the effects of corrosive action compared to the controls. Thus, the multiple imaging techniques showed that engineered changes on stainless steel surfaces improved the resistance of the surface finish to bacterial attachment, biofilm formation, and corrosive action.

show abstract

“…The O1s peak is composed of three peaks at 530.3, 531.9, and 532.8 eV; the first two peaks correspond to the binding energy of the O 2-and OH -ions, in agreement with the presence of the iron oxide/hydroxide layer as detected in the Fe2p 3/2 spectrum. The signals at 531.9 eV and 532.8 eV also corresponds to oxygen in the C-O, O-C-O, and C-O species, which are present in the inhibitor 48,49 . Their presence, especially in the latter ones, demonstrates that the activated starch molecules are adsorbed on the steel surface.…”

Section: Effect Of the Concentration And Modification Process Of Starmentioning

confidence: 99%

Modified cassava starches as potential corrosion inhibitors for sustainable development

et al. 2013

View full text Add to dashboard Cite

Activated (AS) and carboxymethylated (CMS 0.24 ) cassava starch derivatives were studied as corrosion inhibitors for carbon steel XC35 in a 200 mgL -1 NaCl solution. They were characterized by back titration and Fourier Transform Infrared Spectroscopy (FTIR). Electrochemical techniques were used to evaluate the inhibitive properties of starches at room temperature and the chemical composition of the protective films was determined by X-Ray Photoelectron Spectroscopy (XPS). Electrochemical measurements revealed that AS acts as mixed inhibitor, whereas CMS 0.24 mainly inhibits the anodic reaction. In both cases, the protection increased with the inhibitor concentration; nevertheless, after 24 hours of immersion, the CMS 0.24 loses its properties, while AS molecules still maintains them. XPS analyses show that the inhibitive films are composed of an iron oxide/hydroxide mixture in which starch molecules are incorporated. Results were explained taking into consideration the hydrophilicity and the strength of the ionic interaction of the starches with the metal surface.

show abstract

The cleanability of stainless steel as determined by X-ray photoelectron spectroscopy

Cited by 37 publications

References 9 publications

Superhydrophilic TiO2 surfaces generated by reactive oxygen treatment

Superhydrophilic TiO2 surfaces generated by reactive oxygen treatment

Multiple imaging techniques demonstrate the manipulation of surfaces to reduce bacterial contamination and corrosion

Modified cassava starches as potential corrosion inhibitors for sustainable development

Contact Info

Product

Resources

About