Materials Reports  2022, Vol. 36 Issue (Z1): 21060249-5 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Preparation and Properties of Photocatalytic Alumina Foam Ceramics |
| SHUAI Shuyi, LI Jing, HE Ting, CHEN Qin, CHEN Lu, LI Yang
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| School of Materials and Architectural Engineering, Guizhou Normal University, Guiyang 550025, China |
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Abstract Photocatalytic alumina foam ceramics with anatase nano TiO2 loading layer were successfully prepared by process of dipping, gelation and sintering with titanium sol as dipping slurry and alumina foam ceramics as substrate. And the effects of titanium sol concentration on the loading weight gain rate, microscopic morphology, phase structure and photocatalytic degradation properties of the photocatalytic foam ceramics were investigated. Results showed that the loading gain rate of nano-TiO2 on the foam ceramics decreased with the titanium sol concentration. When the concentration of titanium sol decreased from 0.565 mol/L to 0.294 mol/L, the loading weight gain rate decreased from 3.07% to 0.48%. Meanwhile, high concentration of titanium sol impregnation would cause the loading layer cracked. However, the loading layer was incomplete under low concentration dipping. The microscopic morphology of the photocatalytic foam ceramics was dense and without any cracks at 0.334 mol/L. At the same time, the foam ceramics had the optimal photocatalytic performance. The degradation rate of rhodamine B was about 99.5% under UV irradiation for 9 h.
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Published: 05 June 2022
Online: 2022-06-08
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| Fund:Guiyang Science and Technology Project(Zhuke Contract [2020]-No. 4-2),Guizhou Science and Technology Project(Guizhou Kehe Foundation [2020]1Y206). |
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1 Alzahrani S, Mohammad A W. Journal of Water Process Engineering, 2014, (4), 107.
2 Parham H, Saeed S. Journal of Environmental Chemical Engineering, 2013, 1(4), 1117.
3 Muggli D S, Keyser S A, Falconer J L. Catalysis Letters, 1998, 55(3-4), 129.
4 Mayer B K, Johnson C, Yang Y, et al. Chemosphere, 2019, 217, 111.
5 姜建辉, 邓臣强, 曹钰, 等. 硅酸盐学报, 2019, 47(7), 942.
6 田传进, 赵文燕, 陈雅楠, 等. 硅酸盐学报, 2019, 47(12), 1711.
7 李瑶, 彭同江, 孙红娟, 等. 硅酸盐学报, 2019, 47(4), 480.
8 祝思频, 王春英, 王俊蔚, 等. 硅酸盐学报, 2017, 45(10), 1495.
9 Fujishima A, Honda K. Nature, 1972, 238(5358), 37.
10 Chen X, Mao S S. Cheminform, 2007, 38(7), 2891.
11 Liu N, Chen X, Zhang J, et al. Catalysis Today, 2014, 225, 34.
12 Fu G, Vary P S, Lin C T. The Journal of Physical Chemistry B, 2005, 109(18), 8889.
13 Yun S C, Park S B, Kang D W. Materials Chemistry & Physics, 2004, 86(2-3), 375.
14 Wu D, F Mao, Yang Z, et al. Materials Science in Semiconductor Proce-ssing, 2014, 23, 72.
15 周武艺,张世英,唐绍裘. 硅酸盐学报, 2007, 35(10), 1332.
16 慕楠, 刘艳改, 惠壮, 等. 硅酸盐学报, 2020, 48(9), 1460.
17 郑会奇,陈晋,赵杨, 等. 硅酸盐学报, 2020, 48(5), 723.
18 刘斌智, 滕冰洁, 谢力, 等. 化学与生物工程, 2016, 33(9), 42.
19 孙艳娟,王瑞,王董帆,等. 环境科学学报, 2017,37(6), 2265.
20 Mackie J C, Doolan K R. International Journal of Chemical Kinetics, 1984, 16(5), 525.
21 雷绒绒, 朱亮, 沙作良, 等. 中国抗生素杂志, 2014, 39(6), 451. |
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