| 李鹏熙,刘忠洪,樊睿,杨静静.化学通报,2026,89(7):849-857. |
| 核壳结构的ZnIn2S4/磷钨酸铵光催化剂高效降解盐酸土霉素的性能研究 |
| Synthesis, Structural Characterization, and Photocatalytic Performance of a Core–Shell ZnIn2S4/Ammonium Phosphotungstate Heterojunction for the Efficient Degradation of Oxytetracycline Hydrochloride |
| 投稿时间：2026-03-16 修订日期：2026-04-13 |
| DOI： |
| 中文关键词: 硫化铟锌 磷钨酸铵 光催化降解 抗生素 |
| 英文关键词:ZnIn2S4, Ammonium phosphotungstate, Photocatalytic degradation, Antibiotics |
| 基金项目:重庆市教育委员会科学技术研究重点项目(KJZD-K202504502)资助 |
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| 中文摘要: |
| 为了提高ZnIn2S4的光催化降解效率，采用两步水热法制备了具有核壳结构的ZnIn2S4/磷钨酸铵复合光催化剂。SEM、HRTEM、XRD和FTIR分析表明，ZnIn2S4/磷钨酸铵光催化剂具有核壳结构。光催化降解实验表明，ZnIn2S4/磷钨酸铵光催化剂在30 min内，最高可实现对盐酸土霉素88%的去除；循环使用五次后，仍保持较好的光催化降解效率（?80%），且使用前后光催化剂的结构未发生明显变化。光催化机理研究表明，·O2-和h+在光催化降解过程中扮演着重要作用，光生电子的转移符合Z型异质结机理。为未来高效构建ZnIn2S4基异质结提供创新性的策略。 |
| 英文摘要: |
| In order to enhance the photocatalytic degradation efficiency of ZnIn2S4, a core-shell structured ZnIn2S4/ammonium phosphotungstate (PWN) composite photocatalyst was synthesised via a two-step hydrothermal method. As demonstrated by the SEM, HRTEM, XRD, and FTIR analyses, the ZnIn2S4/PWN photocatalyst was found to be composed of a core-shell structure. Photocatalytic degradation experiments demonstrated that the ZnIn2S4/PWN catalyst achieved up to 88% removal of Oxytetracycline Hydrochloride within 30 min. Following five cycles of reuse, the photocatalytic degradation efficiency remained at a consistently high level (>80%), with no substantial structural alterations observed before or after utilisation. The results of studies on the photocatalytic mechanism indicate that ·O2- and h+ play crucial roles in the degradation process, with photo-generated electron transfer following the Z-type heterojunction mechanism. Providing innovative strategies for the efficient construction of ZnIn2S4-based heterojunctions for future applications. |
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