This research utilized the solvothermal technique to prepare carbon cloth supported black phosphorus-FeMoO4 (CC-BP-FMO) composites, which were used for the degradation of tetracycline hydrochloride (TC-HCl) through the peroxymonosulfate (PMS)-assisted photoelectrocatalysis (PEC) route. Several characterization techniques were employed to systematically examine the morphology, elemental composition, crystal and molecule structures, magnetism properties, bonding states, energy band structure, separation efficiency of photo-induced carriers, electrochemical behaviors, reactive species, and intermediate products of TC-HCl degradation. The experimental results demonstrated that the performance of PMS-assisted PEC TC-HCl degradation by the CC-BP-FMO composites was significantly improved in comparison with photocatalysis, electrocatalysis, PMS activation, and PEC. The CC-BP-FMO composites with more exposed BP-FMO catalysts exhibited the ability to be reused for PMS-assisted PEC degradation of TC-HCl, with a large k value of 0.21 min−1 and a high degradation rate of 97% after the fourth cycle. The remarkable PMS-assisted PEC property of the CC-BP-FMO composites was mainly attributed to the swift separation of photo-induced charge carriers, which hastened the creation of reactive radicals. Five possible catalytic reaction pathways existed in the CC-BP-FMO composites towards TC-HCl degradation under the PMS-assisted PEC condition. Importantly, the photo-generated electrons and [Formula: see text] radicals were advantageous for the redox reaction of Fe+2/Fe+3 and Mo+4/Mo+6. The oxygen vacancies caused by P and Mo in the BP-FMO heterojunction could suppress the carrier recombination. The degradation of TC-HCl involved the participation of oxygen vacancy, [Formula: see text], [Formula: see text], and ∙OH radicals, and 1O2 nonradicals. The CC-BP-FMO composites have the potential application for treating wastewater containing organic pollutants.

中文翻译：

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碳布负载黑磷-FeMoO4复合材料过一硫酸盐辅助光电催化降解盐酸四环素

本研究利用溶剂热技术制备碳布负载黑磷-FeMoO4（CC-BP-FMO）复合材料，用于通过过一硫酸盐（PMS）辅助光电催化（PEC）途径降解四环素盐酸盐（TC-HCl）。采用多种表征技术系统地研究了TC-HCl的形貌、元素组成、晶体和分子结构、磁性、键合状态、能带结构、光生载流子分离效率、电化学行为、活性物质和中间产物降解。实验结果表明，与光催化、电催化、PMS活化和PEC相比，CC-BP-FMO复合材料的PMS辅助PEC降解TC-HCl的性能显着提高。具有更多暴露的 BP-FMO 催化剂的 CC-BP-FMO 复合材料表现出可重复用于 PMS 辅助 PEC 降解 TC-HCl 的能力，k 值高达 0.21 min−1第四次循环后降解率高达97%。 CC-BP-FMO复合材料显着的PMS辅助PEC性能主要归因于光生载流子的快速分离，从而加速了反应自由基的产生。在 PMS 辅助的 PEC 条件下，CC-BP-FMO 复合材料中存在五种可能的 TC-HCl 降解催化反应途径。重要的是，光生电子和[式：见文字]自由基有利于Fe的氧化还原反应+2/铁+3和莫+4/钼+6。 BP-FMO异质结中P和Mo引起的氧空位可以抑制载流子复合。 TC-HCl的降解涉及氧空位、[式：见正文]、[式：见正文]和·OH自由基的参与，并且1氧2非激进分子。 CC-BP-FMO复合材料在处理含有机污染物的废水方面具有潜在的应用前景。