Synthesis of BaTiO3 nanoparticles by sol-gel assisted solid phase method and its formation mechanism and photocatalytic activity

被引：70

作者：

Mi, Lijie ^{[1
]}

Zhang, Qiankang ^{[1
]}

Wang, Haiwang ^{[1
,2
,3
]}

Wu, Zhengjie ^{[1
]}

Guo, Yongxiang ^{[1
]}

Li, Yuanming ^{[1
]}

Xiong, Xinyu ^{[1
]}

Liu, Kefan ^{[1
]}

Fu, Weijie ^{[1
]}

Ma, Yuan ^{[1
]}

Wang, BingZhu ^{[1
]}

Qi, XiWei ^{[1
,2
,3
]}

机构：

[1] Northeastern Univ Qinhuangdao, Sch Resources & Mat, 143 Taishan Rd, Qinhuangdao 066004, Hebei, Peoples R China

[2] Key Lab Dielect & Electrolyte Funct Mat Hebei Pro, 143 Taishan Rd, Qinhuangdao 066004, Hebei, Peoples R China

[3] Northeastern Univ, Sch Mat Sci & Engn, 3-11 Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 08期

关键词：

BaTiO3; Sol-gel-assisted solid-phase method; Thermodynamic and kinetic analysis; Photocatalytic hydrogen production; BARIUM-TITANATE; HYDROTHERMAL SYNTHESIS; PARTICLES; COMPOSITE; HYDROGEN; POWDERS; DEGRADATION; TEMPERATURE; RESOLUTION; CERAMICS;

D O I：

10.1016/j.ceramint.2020.01.066

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, a new sol-gel assisted solid-phase method for the preparation of nano BaTiO3 ceramics is proposed to solve the shortcomings of too high temperature in solid-phase preparation and NO2 pollution produced by sol-gel method. The TiO2 precursor gel is used to encapsulate BaCO3, which can effectively reduce the temperature during calcination. In this study, XRD, FT-IR, XPS, TEM, SEM and TG-DSC were used to explore the structure and evolution of samples at different stages. In addition, the crystallization and growth process of BaTiO3 were further studied. Then the energy band structure and electron hole recombination of different samples were analyzed by UV-Vis and PL spectra. Finally, the photocatalytic activity of different samples was investigated by photolytic water experiment. The results showed that BaTiO3 was initially generated at 600 degrees C and pure phase BaTiO3 was generated at 800 degrees C. In the photolytic water experiment, the samples calcined at 700 degrees C showed the best photocatalytic performance, with a hydrogen production rate of 43.74 mu mol/g/h.

引用

页码：10619 / 10633

页数：15

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