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Synthesis of Bi4Ti3O12 decussated nanoplates with enhanced piezocatalytic activity†
Nanoscale ( IF 5.8 ) Pub Date : 2019-10-07 , DOI: 10.1039/c9nr07544e Jiang Wu 1, 2, 3, 4, 5 , Ni Qin 1, 2, 3, 4, 5 , Enzhu Lin 1, 2, 3, 4, 5 , Baowei Yuan 1, 2, 3, 4, 5 , Zihan Kang 1, 2, 3, 4, 5 , Dinghua Bao 1, 2, 3, 4, 5
Nanoscale ( IF 5.8 ) Pub Date : 2019-10-07 , DOI: 10.1039/c9nr07544e Jiang Wu 1, 2, 3, 4, 5 , Ni Qin 1, 2, 3, 4, 5 , Enzhu Lin 1, 2, 3, 4, 5 , Baowei Yuan 1, 2, 3, 4, 5 , Zihan Kang 1, 2, 3, 4, 5 , Dinghua Bao 1, 2, 3, 4, 5
Affiliation
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A variety of nanostructured Bi4Ti3O12 materials with diverse morphologies were synthesized by a novel hydrothermal method using layered titanate Na2Ti3O7 as a synthetic precursor. Among these materials, decussated nanoplates exhibit superior piezocatalytic activity compared with other piezocatalysts of the perovskite family. The enhanced piezocatalytic activity is attributed to the large piezoelectric potential difference and the short distance between polar surfaces, which may help enhance the driving force of charge transport. The finite element method (FEM) simulation of piezoelectric response in different Bi4Ti3O12 nanostructures was performed to illustrate the influence of morphological features on the piezocatalytic performance. The catalytic mechanism of Bi4Ti3O12 was investigated by the detection and characterization of free radicals and intermediate products with electron spin resonance (ESR) spin-trapping technique and liquid chromatography-mass spectrometry (LC-MS). This work may push forward the development of piezocatalytic materials, and provide insights into piezocatalysis for environmental applications.
中文翻译：
具有增强的压电催化活性 的Bi 4 Ti 3 O 12废弃的纳米板的合成†
以层状钛酸盐Na 2 Ti 3 O 7为合成前驱体，通过新颖的水热法合成了多种形态多样的纳米Bi 4 Ti 3 O 12材料。在这些材料中，废弃的纳米板与钙钛矿家族的其他压电催化剂相比，表现出优异的压电催化活性。压电催化活性的提高归因于压电电位差大和极性表面之间的距离短，这可能有助于增强电荷传输的驱动力。不同Bi 4 Ti 3 O 12中压电响应的有限元模拟进行纳米结构以说明形态特征对压电催化性能的影响。通过电子自旋共振（ESR）自旋俘获技术和液相色谱-质谱（LC-MS）对自由基和中间产物的检测和表征，研究了Bi 4 Ti 3 O 12的催化机理。这项工作可能会推动压电催化材料的发展，并为在环境应用中的压电催化提供见解。
更新日期：2019-11-14
中文翻译：
具有增强的压电催化活性 的Bi 4 Ti 3 O 12废弃的纳米板的合成†
以层状钛酸盐Na 2 Ti 3 O 7为合成前驱体，通过新颖的水热法合成了多种形态多样的纳米Bi 4 Ti 3 O 12材料。在这些材料中，废弃的纳米板与钙钛矿家族的其他压电催化剂相比，表现出优异的压电催化活性。压电催化活性的提高归因于压电电位差大和极性表面之间的距离短，这可能有助于增强电荷传输的驱动力。不同Bi 4 Ti 3 O 12中压电响应的有限元模拟进行纳米结构以说明形态特征对压电催化性能的影响。通过电子自旋共振（ESR）自旋俘获技术和液相色谱-质谱（LC-MS）对自由基和中间产物的检测和表征，研究了Bi 4 Ti 3 O 12的催化机理。这项工作可能会推动压电催化材料的发展，并为在环境应用中的压电催化提供见解。
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