Scholarlink

<p>Rational development of innovative photocatalysts with efficient interfacial separation and stronger oxidation–reduction ability of photo-generated carrier is critical for environmental antibiotic purification. In this work, a novel dual Z-scheme heterojunction nanocomposites were fabricated based on the in-situ growth of CuBi<sub>2</sub>O<sub>4</sub> nanoparticles onto the surface of TiO<sub>2</sub> nanorods and Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> nanosheets via a facile one-step hydrothermal method. Ternary TiO<sub>2</sub>/CuBi<sub>2</sub>O<sub>4</sub>/Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> (TCB) composites showed enhanced photocatalytic removal of tetracycline (TC), which is greater than pure Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>, CuBi<sub>2</sub>O<sub>4</sub>, TiO<sub>2</sub> and binary composites. The TCB-20 composite exhibited the best photo-degradation efficiency of TC (82% at 60&#xa0;min) and maintained a higher stability after four consecutive cycles. Additionally, a dual Z-scheme photocatalytic mechanism with highly efficient and fast electron transfer was proposed, which prominently improves the photocatalytic performance. This work reports an integrated structure of a dual Z-scheme heterojunction that plays an important role in the degradation of tetracycline.</p> Graphical abstract <p></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

In-situ construction of dual Z-scheme TiO2/CuBi2O4/Bi2O2CO3 heterojunction for exceptional visible-light photocatalytic tetracycline removal

  • 期刊论文

  • 发表日期：

    2025年4月28日

查看全文
  • Jia Li,
  • Quanquan Shi,
  • Lin Ha,
  • Yanxin Sun,
  • Huiming Shi

摘要

Rational development of innovative photocatalysts with efficient interfacial separation and stronger oxidation–reduction ability of photo-generated carrier is critical for environmental antibiotic purification. In this work, a novel dual Z-scheme heterojunction nanocomposites were fabricated based on the in-situ growth of CuBi2O4 nanoparticles onto the surface of TiO2 nanorods and Bi2O2CO3 nanosheets via a facile one-step hydrothermal method. Ternary TiO2/CuBi2O4/Bi2O2CO3 (TCB) composites showed enhanced photocatalytic removal of tetracycline (TC), which is greater than pure Bi2O2CO3, CuBi2O4, TiO2 and binary composites. The TCB-20 composite exhibited the best photo-degradation efficiency of TC (82% at 60 min) and maintained a higher stability after four consecutive cycles. Additionally, a dual Z-scheme photocatalytic mechanism with highly efficient and fast electron transfer was proposed, which prominently improves the photocatalytic performance. This work reports an integrated structure of a dual Z-scheme heterojunction that plays an important role in the degradation of tetracycline.

Graphical abstract