Over the past few decades, the overuse of antibiotics has raised concerns about drinking water and potential health risks, especially the hydrochloride tetracycline (TC‐HCl). Therefore, it is crucial to develop a simple, low‐cost and high‐efficiency photocatalyst for the degradation of the pollutant. A novel photocatalyst with an S‐scheme heterojunction structure of AgIn5S8 and Bi2MoO6 was synthesized by using a solvothermal method. The heterojunction photocatalyst obtained demonstrates superior photocatalytic degradation activity for hydrochloride tetracycline (TC‐HCl) under visible light irradiation. It exhibits higher photocatalytic degradation performance than pure AgIn5S8 and Bi2MoO6 under the same conditions. The heterojunction with 3% AgIn5S8 exhibited the highest degradation efficiency of 63.78% within 40 minutes. Furthermore, the degradation rate is 6.21 times higher than that of AgIn5S8 and 2.18 times higher than that of Bi2MoO6. The improved photocatalytic activity is primarily attributed to the enhanced light absorption and the high rate of carrier separation resulting from S‐scheme heterojunctions.

中文翻译：

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S型AgIn5S8/Bi2MoO6异质结光催化降解盐酸四环素

在过去的几十年里，抗生素的过度使用引起了人们对饮用水和潜在健康风险的担忧，尤其是盐酸四环素（TC-HCl）。因此，开发一种简单、低成本、高效的光催化剂来降解污染物至关重要。采用溶剂热法合成了AgIn5S8和Bi2MoO6的S型异质结结构的新型光催化剂。所得异质结光催化剂在可见光照射下对盐酸四环素（TC-HCl）表现出优异的光催化降解活性。在相同条件下，其表现出比纯AgIn5S8和Bi2MoO6更高的光催化降解性能。含有 3% AgIn5S8 的异质结在 40 分钟内表现出最高的降解效率，达到 63.78%。此外，降解率比AgIn5S8高6.21倍，比Bi2MoO6高2.18倍。光催化活性的提高主要归因于S型异质结增强的光吸收和高载流子分离率。