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<p>Removal of tetracycline hydrochloride in wastewater and oil-containing wastewater poses a threat to the ecological environment. The development of efficient photocatalysts for degrading antibiotic tetracycline hydrochloride in wastewater is of great importance; yet, there remain challenges. In this work, polyester fabrics were modified by in situ polymerization and hydrothermal methods to obtain PPy/CoZn-LDH composite photocatalysts, which can be employed as functional separation membranes as well. The results showed that the photocatalytic degradation efficiency of tetracycline hydrochloride for PPy/CoZn-LDH could reach 84.1% under neutral pH, and it had good catalytic degradation performance for different dyes, such as rhodamine B (RhB), methylene blue (MB) and methyl orange (MO). PPy can promote the effective separation of photo-generated electrons and holes, thus enabling improved performance. Meanwhile, the composite separation membrane is super hydrophilic-underwater superoleophobic, and the efficiency of the oil–water separation could reach 98%.</p>

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Polypyrrole/CoZn-LDH modified polyester fabric for the efficient tetracycline hydrochloride photodegradation and oil–water separation

  • 期刊论文

  • 发表日期：

    2025年1月18日

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  • Lili Yu,
  • Yan Li,
  • Zilong Han,
  • Haotong Chen,
  • Zhiyuan Zhang,
  • Li Li

摘要

Removal of tetracycline hydrochloride in wastewater and oil-containing wastewater poses a threat to the ecological environment. The development of efficient photocatalysts for degrading antibiotic tetracycline hydrochloride in wastewater is of great importance; yet, there remain challenges. In this work, polyester fabrics were modified by in situ polymerization and hydrothermal methods to obtain PPy/CoZn-LDH composite photocatalysts, which can be employed as functional separation membranes as well. The results showed that the photocatalytic degradation efficiency of tetracycline hydrochloride for PPy/CoZn-LDH could reach 84.1% under neutral pH, and it had good catalytic degradation performance for different dyes, such as rhodamine B (RhB), methylene blue (MB) and methyl orange (MO). PPy can promote the effective separation of photo-generated electrons and holes, thus enabling improved performance. Meanwhile, the composite separation membrane is super hydrophilic-underwater superoleophobic, and the efficiency of the oil–water separation could reach 98%.