A comparative study of different natural palygorskite clays for fabricating cost-efficient and eco-friendly iron red composite pigments | |
Department | 甘肃省黏土矿物应用重点实验室 |
Lu YS (卢予沈)1,2; Dong WK (董文凯)1,2; Wang WB (王文波)1,3; Wang Q (汪琴)1,3; Hui AP (惠爱平)1,3; Wang AQ (王爱勤)1,3 | |
2019-01 | |
Source Publication | Applied Clay Science |
Volume | 167Issue:无Pages:50-59 |
Abstract | A series of α-Fe2O3/palygorskite (α-Fe2O3/Pal) inorganic-inorganic composite pigments were prepared by a one-step hydrothermal process using six kinds of iron-rich natural palygorskite clays (Pal-c) with different structures, morphologies and compositions as starting materials. The effects of different natural Pal-c on the structure, chemical composition, color and stability of the as-prepared composite pigments were studied comparatively by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), transmittance electron microscope (TEM), X-ray fluorescence spectroscopy (XRF) and CIE-L*a*b* colorimetric analyses. The results showed that the Fe(III) ions in the reaction solution can be converted into red α-Fe2O3 particles in situ on the Pal surface, without adding any chemical precipitant. Pal not only induce formation of α-Fe2O3 as a ‘green’ precipitant, but also effectively control the particle size of α-Fe2O3 nanoparticles as a microreactor and prevent the aggregation of particles as a supporter. The chemical composition of natural Pal-c has a great influence on the L*, a*, b* values of the composite pigments, while the associated mineral types have little effect on the color values of the pigments. The optimal iron-red composite pigment mainly composed of 58.59% Fe2O3 and 35.11% SiO2 exhibits the best L* value of 31.1 and a* value of 33.4, which is superior to commercial iron red pigment (a* = 26.9). The red composite pigment exhibits excellent chemical stability and remains in a good red color after treatment with an acid solution, an alkaline solution, or an organic solvent. In addition, the red composite pigment can be well dispersed in ethanol or water, and can be uniformly sprayed onto the ceramic substrate and stably coated on it, and remains a vivid red color after calcinations at 1100 °C. |
Keyword | Palygorskite Iron Red Composite Pigment Hydrothermal Stability |
Subject Area | 材料科学 ; 无机非金属材料 ; 复合材料 |
MOST Discipline Catalogue | 工学::材料科学与工程(可授工学、理学学位) |
DOI | 10.1016/j.clay.2018.10.008 |
URL | 查看原文 |
Indexed By | SCI |
If | 3.641 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/24253 |
Collection | 甘肃省黏土矿物应用研究重点实验室 |
Corresponding Author | Wang WB (王文波); Wang AQ (王爱勤) |
Affiliation | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.University of the Chinese Academy of Sciences, Beijing 100049, PR China 3.Center of Xuyi Palygorskite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Xuyi 211700, PR China |
Recommended Citation GB/T 7714 | Lu YS ,Dong WK ,Wang WB ,et al. A comparative study of different natural palygorskite clays for fabricating cost-efficient and eco-friendly iron red composite pigments[J]. Applied Clay Science,2019,167(无):50-59. |
APA | Lu YS ,Dong WK ,Wang WB ,Wang Q ,Hui AP ,&Wang AQ .(2019).A comparative study of different natural palygorskite clays for fabricating cost-efficient and eco-friendly iron red composite pigments.Applied Clay Science,167(无),50-59. |
MLA | Lu YS ,et al."A comparative study of different natural palygorskite clays for fabricating cost-efficient and eco-friendly iron red composite pigments".Applied Clay Science 167.无(2019):50-59. |
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10.1016@j.clay.2018.(3292KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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