SrMn1-Fe O3- (x = 0–1) black ceramic pigment: Synthesis, color properties, and application

Lai, Fanbing; Shi, Wei; Hu, Shengliang; Li, Xiaohong; Chang, Qibing; Wang, Yong Qing; Wang, Qikun

doi:10.1016/j.ceramint.2023.06.145

Cited by 1 publication

(1 citation statement)

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“…To achieve the harmless treatment of industrial solid waste, the processing of transition metal-enriched industrial solid waste into black ceramic pigments has gained favor among scholars [11][12][13][14]. According to the above ideology, and based on the composition features of SSD, the use of SSD to prepare black ceramic pigments was proposed to avoid the drawbacks of traditional treatment processes and achieve high value-added utilization and harmless treatment of SSD [15,16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Spinel-Type Black Pigments Using Microwave-Assisted Calcination of Stainless Steel Dust: The Effect of Manganese Molar Content

Zhang,

Xu,

et al. 2023

Metals

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Stainless steel dust is rich in valuable metal elements including Fe, Cr, Ni and Mn, which can be utilized to prepare Fe–Cr–Ni–Mn series black pigments. Meanwhile, manganese can absorb the majority of the visible light wavelength range, which improves the color rendering performance of Fe–Cr–Ni–Mn series black pigments. However, the coloring mechanism of manganese in the above black pigments is not clear. Therefore, the effect of manganese oxide content on the preparation of spinel-type black pigments from microwave-assisted calcination of stainless steel dust was studied in this work. The results show that with the increase in MnO content in the raw mixture, the crystal plane spacing of black pigments increases from 0.2525 nm to 0.2535 nm, the grain size grows from 61.4619 nm to 79.7171 nm, and the lattice constant grows from 0.8377 to 0.8406 nm. Moreover, the band gap is decreased from 1.483 eV to 1.244 eV, the absorbance increases significantly and has a consistent absorbance in the visible range, and the L*, a* and b* values reduce from 41.8, 0.6, 1.6 to 32.0, 1.0, 0.8, respectively. MnO can react with the spinel in stainless steel dust, forming Mn3O4, MnCr2O4 and Ni (Fe,Cr)O4 in the system, with a regular polyhedral structure. The prepared pigments have excellent thermal stability at 1100 °C and good compatibility with transparent glazes, which can be adhered to the surface of ceramic tiles after calcination to demonstrate better compatibility as the content of MnO increases.

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