Ceramic pigments and dyes beyond the inkjet revolution: From technological requirements to constraints in colorant design

Molinari, Chiara; Conte, Sonia; Zanelli, Chiara; Ardit, Matteo; Cruciani, Giuseppe; Dondi, Michele

doi:10.1016/j.ceramint.2020.05.302

Cited by 49 publications

(33 citation statements)

References 385 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For using mineral pigments in production of the colored ceramic products, the ceramic pigments must have a high melting point. In fact, the melting point matches the colorant behavior usually recognized in the industrial application (Molinari et al , 2020). Among synthetic inorganic ceramic pigments, which are being exploited in the ceramic industry, there is a limited option for red/pink colors (Cr-Sn-Ca-Si systems).…”

Section: Introductionsupporting

confidence: 65%

The effect of mineralizer addition and temperature on synthesis of malayaitepink pigment

Mehrabi

Rezaie

Yekta

2021

PRT

View full text Add to dashboard Cite

Purpose This study aims to the effect of NaF, Li2CO3 and H3BO3 minerals was investigated, and the best mineralizer was found to be H3BO3. Furthermore, the effect of temperature was investigated, and the synthesized samples were calcined at temperatures of 1100, 1200 and 1300 °C to select the optimum calcination temperature. Design/methodology/approach This study was aimed at thoroughly investigating the effects of mineralizer addition and temperature on the synthesis of malayaite pink pigment based on raw materials of SnCl2-SiO2-Ca(OH)2-K2Cr2O7. To this end, the optimization of the synthesis parameters such as mineralizer addition and temperature was completely perused. Findings The optimum temperature was 1300 °C, and the color efficiency of pigments was evaluated by colorimetric (CIE L*a*b* system) analysis, and these parameters were close to those of industrial pigments. Originality/value To the best of the authors’ knowledge, for the first time, the effect of mineralizer addition and temperature on the synthesis of malayaite pink pigment was investigated through the sol-gel method. Herein, different parameters were optimized to propose a novel pigment with a much better performance.

show abstract

Section: Introductionsupporting

confidence: 65%

The effect of mineralizer addition and temperature on synthesis of malayaitepink pigment

Mehrabi

Rezaie

Yekta

2021

PRT

View full text Add to dashboard Cite

show abstract

“…The Mg x Co 3−x P 2 O 8 (1.5 ≤ x ≤ 2.5) solid solutions with the stable Co 3 P 2 O 8 structure may be used as blue pigments in the ceramic industry. The CIE L*/a*/b* colour parameters of classical blue pigments used in the ceramic industry with Co 2 SiO 4 or MgCoSiO 4 compositions with an olivine structure (weight ratio of pigment to glaze equal to 1:5, 20 weight% pigment) were 29.00/11.20/–25.6 and 29.19/7.97/–17.61, respectively, for the single-fired enamelled samples [ 20 , 21 ]. The glazed tiles from the Mg x Co 3−x P 2 O 8 (1.5 ≤ x ≤ 2.5) solid solutions (including 3% pigment) showed blue colourations with a large amount of blue colour (–15.9 ≤ b* ≤ –20.20) and a low lightness (18.53 ≤ L* ≤ 27.05).…”

Section: Resultsmentioning

confidence: 99%

Cobalt Minimisation in Violet Co3P2O8 Pigment

et al. 2022

View full text Add to dashboard Cite

This study considers the limitations of cobalt violet orthophosphate, Co3P2O8, in the ceramic industry due to its large amount of cobalt. MgxCo3−xP2O8 (0 ≤ x ≤ 3) solid solutions with the stable Co3P2O8 structure were synthesised via the chemical coprecipitation method. The formation of solid solutions between the isostructural Co3P2O8 and Mg3P2O8 compounds decreased the toxically large amount of cobalt in this inorganic pigment and increased the melting point to a temperature higher than 1200 °C when x ≥ 1.5. Co3P2O8 melted at 1160 °C, and compositions with x ≥ 1.5 were stable between 800 and 1200 °C. The substitution of Co(II) with Mg(II) decreased the toxicity of these materials and decreased their price; hence, the interest of these materials for the ceramic industry is greater. An interesting purple colour with a* = 31.6 and b* = −24.2 was obtained from a powdered Mg2.5Co0.5P2O8 composition fired at 1200 °C. It considerably reduced the amount of cobalt, thus improving the colour of the Co3P2O8 pigment (a* = 16.2 and b* = −20.1 at 1000 °C). Co3P2O8 is classified as an inorganic pigment (DCMA-8-11-1), and the solid solutions prepared were also inorganic pigments when unglazed. When introducing 3% of the sample (pigment) together with enamel, spreading the mixture on a ceramic support and calcining the whole in an electric oven, a colour change from violet to blue was observed due to the change in the local environment of Co(II), which could be seen in the UVV spectra of the glazed samples with the displacement of the bands towards higher wavelengths and with the appearance of a new band assigned to tetrahedral Co(II). This blue colour was also obtained with Co2SiO4, MgCoSiO4 or Co3P2O8 pigments containing a greater amount of cobalt.

show abstract

“…State-of-the-art and extremely reliable equipment, known as the Thermo Scientific Nicolet iS50 FTIR Spectrometer (Madison, WI, USA) and 300 UV/Vis spectrophotometer, was applied to document the UV/Vis and FTIR spectra of CdO/ZnO/Yb 2 O 3 nanosheets (NSs). Analysis of CdO/ZnO/Yb 2 O 3 NSs was carried out as an XPS study with the aim of identifying binding energy (eV) amongst Cd, Zn, Yb, and O, with a K-α1 spectrometer (Thermo Scientific, K-α1 1066), using the excitation source of radiation (A1 Kα1, spot size of 1 4 300.0 mm, flux energy of 1 4 200.0 eV, pressure of~10 −8 Torr). Examination of the molecular alignment, elemental analysis, morphology, particle size, and other optical properties of CdO/ZnO/Yb 2 O 3 NSs was conducted via a FESEM device (JEOL, JSM-7600F, Tokyo, Japan) installed with XEDS.…”

Section: Materials and Methodologymentioning

confidence: 99%

“…In particular, it is the textile industry that is one of the most polluting sectors for water bodies, because it uses large amounts of water, consumes high quantities of synthetic dyes, and produces a great deal of organic-rich wastewater. In addition to this, the textile industry is severely colored by dyes that do not adhere to the tissue's fabric in the processing [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Research on the Sustainable Heterogeneous Catalyst Development for Photocatalytic Treatment of Phenol

Zhang

Wen-Rui

2021

Sustainability

View full text Add to dashboard Cite

A large amount of wastewater from various and discharged sources that are not treated in any way could affect properties of both land and water, causing severe problems for the environment. Advanced oxidation processes seem to be a feasible option to address effluent treatment with regard to salvation of the environment. In this work, a CdO/ZnO/Yb2O3 composite composed of trimetallic semiconductors was synthesized through a simple one-pot hydrophile approach at low temperatures and then was employed as a photocatalyst. The degradation of phenol, a common organic persistent pollutant in industrial wastewater, was efficiently catalyzed in the presence of simulated sunlight. It was demonstrated that the synthesized CdO/ZnO/Yb2O3 photocatalyst was significantly active after 15 min of reaction and facilitated the effective degradation of the phenol. The CdO/ZnO/Yb2O3 photocatalyst achieved 71.5% and 97.81% degradation of the phenol without and with the existence of H2O2, correspondingly. The results show that the synthesized composite possesses high oxygen reduction capability and is available for rapid and potent photodegradation of the organic persistent pollutants such as phenol, with minimal damage to the environment.

show abstract

Ceramic pigments and dyes beyond the inkjet revolution: From technological requirements to constraints in colorant design

Cited by 49 publications

References 385 publications

The effect of mineralizer addition and temperature on synthesis of malayaitepink pigment

The effect of mineralizer addition and temperature on synthesis of malayaitepink pigment

Cobalt Minimisation in Violet Co3P2O8 Pigment

Research on the Sustainable Heterogeneous Catalyst Development for Photocatalytic Treatment of Phenol

Contact Info

Product

Resources

About