Effects of different pH regulators on the color properties of attapulgite/BiVO4 hybrid pigment 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems
年/卷/期
2019 / 343 /
页码
68-78
ISSN号
0032-5910
作者单位
Chinese Acad Sci, Ctr Ecomat & Green Chem, Lanzhou Inst Chem Phys, Key Lab Clay Mineral Appl Res Gansu Prov, Lanzhou 730000, Gansu, Peoples R China;Chinese Acad Sci, Ctr Ecomat & Green Chem, Lanzhou Inst Chem Phys, Key Lab Clay Mineral Appl Res Gansu Prov, Lanzhou 730000, Gansu, Peoples R China;Chinese Acad Sci, Ctr Ecomat & Green Chem, Lanzhou Inst Chem Phys, Key Lab Clay Mineral Appl Res Gansu Prov, Lanzhou 730000, Gansu, Peoples R China;Gansu Acad Sci, Nat Energy Inst, Lanzhou 730046, Gansu, Peoples R China;Chinese Acad Sci, Ctr Ecomat & Green Chem, Lanzhou Inst Chem Phys, Key Lab Clay Mineral Appl Res Gansu Prov, Lanzhou 730000, Gansu, Peoples R China;
作者
Wang, Xiaowen;Mu, Bin;Zhang, Anjie;An, Xingcai;Wang, Aiqin;
摘要
Four different pH regulators including NaOH, Na2CO3, NaHCO3 and NH3 center dot H2O were employed to prepare attapulgite doped bismuth yellow hybrid pigments by aqueous precipitation followed by an annealing process. Different hybrid pigments derived from different pH regulators had different color properties, and it might be related to the generated products in the process of adjusting pH, which further affected the phase compositions of the end hybrid pigments after being annealed. By contrast, the bismuth yellow hybrid pigments prepared using Na2CO3 as pH regulator exhibited the optimal color properties (L* = 76.81, a*= 4.64, b* = 81.16, C* = 81.29, and h* = 86.73). Interestingly, attapulgite provided the carrier for BiVO4 nanoparticles to inhibit the agglomeration, and the doping elements to improve its color properties as well. The as-prepared hybrid pigments are expected to be served as an eco-friendly and low-cost yellow colorant to replace the traditional and toxic ones. (C) 2018 Elsevier B.V. All rights reserved.
机翻摘要
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关键词/主题词
Attapulgite;BiVO4;Comparative studies;pH regulators;Coloration mechanism;
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