Scholarlink

<p>Piezo-photocatalysis is regarded as a promising strategy to suppress the rapid recombination of photogenerated charges. Herein, a novel (Ba<sub>0.95</sub>,Ca<sub>0.05</sub>)(Ti<sub>0.90</sub>,Sn<sub>0.10</sub>)O<sub>3</sub>-<i>x</i>Ag<sub>2</sub>O (BCTS-<i>x</i>Ag<sub>2</sub>O) heterojunction was fabricated via a facile chemical method to harness the piezoelectric effect under ultrasonic vibration for a remarkable enhancement of catalytic performance. The BCTS-0.01Ag<sub>2</sub>O composite achieves a remarkable 99.5% degradation of RhB within 120&#xa0;min under concurrent light and ultrasonic excitation. This corresponds to a reaction rate constant (<i>k</i>) of 0.04407&#xa0;min⁻<sup>1</sup>, which surpasses those of individual BCTS and Ag<sub>2</sub>O by factors of 5.54 and 8.64, respectively. The enhanced catalytic performance is primarily attributed to the effective separation of photogenerated electron–hole pairs in the BCTS-Ag<sub>2</sub>O heterojunction by the built-in piezoelectric field of BCTS. This study not only delivers a high-performance BCTS-Ag<sub>2</sub>O catalyst but also sheds light on the precise design of efficient piezo-photocatalysts.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhanced piezophotocatalytic performance of heterostructured BCTS/Ag2O composite

  • 期刊论文

  • 发表日期：

    2026年1月29日

查看全文
  • Shuting Hong,
  • Litao Tan,
  • Li Huang,
  • Xuxuan Tang,
  • Ping Peng

摘要

Piezo-photocatalysis is regarded as a promising strategy to suppress the rapid recombination of photogenerated charges. Herein, a novel (Ba0.95,Ca0.05)(Ti0.90,Sn0.10)O3-xAg2O (BCTS-xAg2O) heterojunction was fabricated via a facile chemical method to harness the piezoelectric effect under ultrasonic vibration for a remarkable enhancement of catalytic performance. The BCTS-0.01Ag2O composite achieves a remarkable 99.5% degradation of RhB within 120 min under concurrent light and ultrasonic excitation. This corresponds to a reaction rate constant (k) of 0.04407 min⁻1, which surpasses those of individual BCTS and Ag2O by factors of 5.54 and 8.64, respectively. The enhanced catalytic performance is primarily attributed to the effective separation of photogenerated electron–hole pairs in the BCTS-Ag2O heterojunction by the built-in piezoelectric field of BCTS. This study not only delivers a high-performance BCTS-Ag2O catalyst but also sheds light on the precise design of efficient piezo-photocatalysts.