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Controlled crystallization of photocatalytic active Bismuth oxyfluoride/Bismuth fluoride on SrO-Bi2O3-B2O3transparent glass ceramic
Journal of the European Ceramic Society ( IF 5.7 ) Pub Date : 2018-03-19 , DOI: 10.1016/j.jeurceramsoc.2018.03.031
V.P. Singh , Rahul Vaish

SrO-Bi2O3-B2O3 (SBBO) transparent glass ceramics are fabricated via conventional melt-quenching technique. Simply via surface fluorination of these glass ceramics, by using HF solution, we obtained the coating of cubic BiO0.51F1.98over SBBO glass ceramic. Further, with successive fluorination by using concentrated HF solutions the crystal structure of coating tends towards the cubic α-BiF3 structurefrom the cubic BiO0.51F1.98. Both the structures of cubic BiO0.51F1.98 and cubic α-BiF3possess totally different morphologies; first having compact spheres and the other shows densely packed cubes, respectively. Along with fluorination, besides the structural and microstructure transformations, we have attained the improved transparency. Synergy effects of structural transformation on the contact angle and the photocatalytic properties are studied. The fluorinated SBBO transparent glass ceramics can be used as self-cleaning structural application.



中文翻译:

SrO-Bi 2 O 3 -B 2 O 3透明玻璃陶瓷上光催化活性氟氧化铋/氟化铋的控制晶化

SrO-Bi 2 O 3 -B 2 O 3(SBBO)透明玻璃陶瓷是通过常规的熔融淬火技术制备的。通过使用HF溶液,仅通过这些玻璃陶瓷的表面氟化,我们就在SBBO玻璃陶瓷上获得了立方BiO 0.51 F 1.98的涂层。此外,通过使用浓HF溶液涂层的晶体结构连续氟化趋向立方α-BIF 3 structurefrom立方BIO 0.51 ˚F 1.98。立方BIO两者的结构0.51 ˚F 1.98和立方α-BIF 3具有完全不同的形态 第一个具有紧凑的球体,另一个具有密集的立方体。伴随氟化,除了结构和微观结构的转变外,我们还获得了提高的透明度。研究了结构转变对接触角和光催化性能的协同作用。氟化SBBO透明玻璃陶瓷可用作自清洁结构应用。

更新日期:2018-03-19
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