文献类型：期刊文献

英文题名：New environmental-friendly yellow pigments Y4-xAxMoO9+δ (A = Ta, Tb)

作者：Cai, Mengjun[1];Chen, Shuaifeng[2];Ma, Xinsheng[1];Chen, Jianding[2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Natl Engn Res Ctr Ultrafine Powder, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：37

期号：7

起止页码：741

外文期刊名：JOURNAL OF RARE EARTHS

收录：;EI(收录号：20191606803458);WOS:【SCI-EXPANDED(收录号:WOS:000470104100009)】；

基金：Project supported by China Fundamental Research Funds for the Central Normal Universities (222201817010).

语种：英文

外文关键词：Yttrium oxide; Molybdenum oxide; Tantalum oxide; Terbium oxide; Inorganic yellow pigment; Rare earths

摘要：A series of inorganic yellow pigments with general formula Y(4-x)A(x)MoO(9+delta) (A = Ta, Tb), where x = 0, 0.05, 0.1, 0.2, 0.4 for Ta and x = 0, 0.005, 0.01, 0.03, 0.05 for Tb, were synthesized by a conventional ceramic method at 1400 degrees C for 6 h in air. The samples were characterized by XRD, EDS, XPS, SEM, TG-DSC, UV-vis-NIR reflectance spectroscopy and CIE L*a*b* color scales. It is found that the substitution of A (A = Ta, Tb) for Y3+ in Y4MoO9 decreases the NIR reflectance of the pigment samples, but the developed pigments Y(4-x)A(x)MoO(9+delta) (A = Ta, Tb) still exhibit impressive NIR solar reflectance. The brighter yellow color of inorganic pigments Y(4-x)A(x)MoO(9+delta) (A = Ta, Tb) is available when x is about 0.1 for Ta and 0.01 for Tb. The results make them a series of potential candidates as ecological yellow pigments because of their high reflectance, lightness, intense coloration and excellent thermal and chemical stability. (C) 2019 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.