Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Remarkable Piezophoto Coupling Catalysis Behavior of BiOX/BaTiO3 (X = Cl, Br, Cl0.166 Br0.834 ) Piezoelectric Composites.
Small ( IF 13.0 ) Pub Date : 2020-05-19 , DOI: 10.1002/smll.202001573 Xiaofeng Zhou 1 , Fei Yan 1 , Shuanghao Wu 1 , Bo Shen 1 , Huarong Zeng 2 , Jiwei Zhai 1
Small ( IF 13.0 ) Pub Date : 2020-05-19 , DOI: 10.1002/smll.202001573 Xiaofeng Zhou 1 , Fei Yan 1 , Shuanghao Wu 1 , Bo Shen 1 , Huarong Zeng 2 , Jiwei Zhai 1
Affiliation
|
Polarization field engineering of piezoelectric materials is considered as an advisable strategy in fine‐tuning photocatalytic performance which has drawn much attention recently. However, the efficient charge separation that determines the photocatalytic reactivities of these materials is quite restricted. Herein, a judicious combination of piezoelectric and photocatalytic performances of BiOX/BaTiO3 (X = Cl, Br, Cl0.166Br0.834) to enable a high piezophotocatalytic activity is demonstrated. Under the synergic advantages of chemical potential difference and piezoelectric potential difference in BiOX/BaTiO3 composites, the photoinduced carriers recombination is largely halted, which directly contributes to the significantly promoted piezophotocatalytic activity of piezoelectric composites. Inspiringly, the BiOBr/BaTiO3 composites under light irradiation with auxiliary ultrasonic activation result in an ultrahigh and stable photocatalytic performance, which is much higher than the total of those by isolated photocatalysis and piezocatalysis, and can rival current excellent photocatalytic system. In fact, the theoretical piezoelectric potential difference of BiOBr/BaTiO3 composites reaches 100 mV, which far exceeds the pure BaTiO3 of 31.21 mV and BiOBr of 30 mV, respectively. First, fabrication of BiOX/BaTiO3 piezoelectric composites and its remarkable piezophoto coupling catalysis behavior lays new ground for developing high‐efficiency piezoelectric photocatalysts in purifying wastewater, killing bacteria, and other piezophototronic processes.
中文翻译：
BiOX / BaTiO3（X = Cl，Br，Cl0.166 Br0.834）压电复合材料的显着压电耦合催化行为。
压电材料的极化场工程被认为是微调光催化性能的一种可取策略，最近引起了人们的广泛关注。然而，决定这些材料的光催化反应性的有效电荷分离受到很大限制。在本文中，证明了BiOX / BaTiO 3（X ＝ Cl，Br，Cl 0.166 Br 0.834）的压电和光催化性能的明智组合，以实现高压电光催化活性。在BiOX / BaTiO 3的化学势差和压电势差的协同优势下在复合材料中，光诱导的载流子复合被大大阻止，这直接有助于显着提高压电复合材料的压电光催化活性。令人鼓舞的是，BiOBr / BaTiO 3复合材料在具有辅助超声活化的光照射下可产生超高且稳定的光催化性能，远高于单独的光催化和压电催化的性能，并且可以与当前出色的光催化系统匹敌。实际上，BiOBr / BaTiO 3复合材料的理论压电电位差达到100 mV，远远超过纯BaTiO 3的31.21 mV和BiOBr 30 mV。首先，制造BiOX / BaTiO 3 压电复合材料及其出色的压电耦合催化行为为开发用于净化废水，杀死细菌和其他压电技术的高效压电光催化剂奠定了新的基础。
更新日期：2020-07-02
中文翻译：
BiOX / BaTiO3（X = Cl，Br，Cl0.166 Br0.834）压电复合材料的显着压电耦合催化行为。
压电材料的极化场工程被认为是微调光催化性能的一种可取策略，最近引起了人们的广泛关注。然而，决定这些材料的光催化反应性的有效电荷分离受到很大限制。在本文中，证明了BiOX / BaTiO 3（X ＝ Cl，Br，Cl 0.166 Br 0.834）的压电和光催化性能的明智组合，以实现高压电光催化活性。在BiOX / BaTiO 3的化学势差和压电势差的协同优势下在复合材料中，光诱导的载流子复合被大大阻止，这直接有助于显着提高压电复合材料的压电光催化活性。令人鼓舞的是，BiOBr / BaTiO 3复合材料在具有辅助超声活化的光照射下可产生超高且稳定的光催化性能，远高于单独的光催化和压电催化的性能，并且可以与当前出色的光催化系统匹敌。实际上，BiOBr / BaTiO 3复合材料的理论压电电位差达到100 mV，远远超过纯BaTiO 3的31.21 mV和BiOBr 30 mV。首先，制造BiOX / BaTiO 3 压电复合材料及其出色的压电耦合催化行为为开发用于净化废水，杀死细菌和其他压电技术的高效压电光催化剂奠定了新的基础。
京公网安备 11010802027423号