Designing a green and efficient catalyst to effectively degrade antibiotics is still one of the hot topics of research. Firstly, 1D nanorod Fe₂O₃/NaNbO₃ composite was successfully prepared by the two steps strategy through hydrothermal combined calcination method. In addition, the photocatalytic activity of the samples was evaluated by the degradation of tetracycline (TC) under visible light irradiation. The test results show that the 5% Fe₂O₃/NaNbO₃ nanorod material exhibits superior degradation rate of TC (89.4% removal efficiency in 90 min), and shows 5.62 times than that of NaNbO₃ nanorods. Under UV–visible light irradiation, 5% Fe₂O₃/NaNbO₃ nanorod composite with H₂O₂ solution can degrade 97.4% of TC in 60 min, which is 12.1 times greater to that of the pure NaNbO₃ nanorods. The outstanding degradation performance may be attributed to the introduction of Fe₂O₃ nanoparticles, which can activate H₂O₂ more efficiently and produce more free radicals to degrade pollutants. At the same time, the 5% Fe₂O₃/NaNbO₃ nanorod composite can also act as an activate persulfate (PS) and generate SO₄⁻ to efficiently degrade TC. In addition, the catalyst also showed good performance in degrading TC in the presence of different anions and cations. Plant growth experiment (mung bean seeds) results showed that the degradation products have obvious lower toxicity. This study provides new domain about the designing of a photo-Fenton catalyst having dual ion synergy (Fe³⁺/Fe²⁺ and Nb⁵⁺/Nb⁴⁺) and full spectrum response.

设计一种绿色高效的催化剂以有效降解抗生素仍然是研究的热点之一。首先通过水热联合煅烧两步法成功制备了一维纳米棒Fe ₂ O ₃ / NaNbO ₃复合材料。另外，通过在可见光照射下四环素（TC）的降解来评估样品的光催化活性。测试结果表明，5％Fe ₂ O ₃ / NaNbO ₃纳米棒材料表现出优异的TC降解率（90分钟内去除效率为89.4％），是NaNbO ₃纳米棒的5.62倍。在紫外线可见光照射下，5％Fe ₂具有H ₂ O ₂溶液的O ₃ / NaNbO ₃纳米棒复合材料可在60分钟内降解97.4％的TC，是纯NaNbO ₃纳米棒的12.1倍。出色的降解性能可能归因于Fe ₂ O ₃纳米颗粒的引入，它可以更有效地活化H ₂ O ₂并产生更多的自由基来降解污染物。与此同时，在5％的Fe ₂ ö ₃ /的NaNbO ₃棒复合物也可以作为一个激活过硫酸盐（PS），并生成SO ₄ ^-有效降低TC。另外，在不同阴离子和阳离子的存在下，该催化剂在降解TC方面也表现出良好的性能。植物生长试验（绿豆种子）结果表明，降解产物具有明显的较低的毒性。这项研究为具有双离子协同作用（Fe ³⁺ / Fe ²⁺和Nb ⁵⁺ / Nb ⁴⁺）和全光谱响应的光芬顿催化剂的设计提供了新的领域。