The occurrence of organic contaminants in surface water has drawn great concern in recent years. The construction of a heterostructure has been shown to improve photoactivity by boosting the separation of photogenerated charge carriers. In this work, magnetically separable NiFe₂O₄/Ag₃VO₄/Ag₂VO₂PO₄ (NFO/AVO/AVPO) heterojunction photocatalysts were synthesized via a chemical etching method in ammonia solution of different concentrations, using NFO/AVPO as the source material. The magnetic NFO/AVO/AVPO not only endows magnetic recoverability using an external magnetic field, but also possesses a heterojunction, boosting the separation of photoinduced charges.

中文翻译：

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具有增强的可见光光活性的磁性可分离 NiFe2O4/Ag3VO4/Ag2VO2PO4 直接 Z 型异质结构

近年来，地表水中有机污染物的存在引起了人们的极大关注。异质结构的构建已被证明可以通过促进光生载流子的分离来提高光活性。在这项工作中，通过化学蚀刻方法在不同浓度的氨溶液中合成了磁性可分离的 NiFe ₂ O ₄ /Ag ₃ VO ₄ /Ag ₂ VO ₂ PO ₄ (NFO/AVO/AVPO) 异质结光催化剂，使用 NFO/AVPO 作为源材料。磁性 NFO/AVO/AVPO 不仅具有使用外部磁场的磁恢复能力，而且还具有异质结，促进光生电荷的分离。