Abstract：
Semiconductor heterojunction engineering and three-dimensional (3D) architecture construction have been considered highly desirable strategies to enhance photocatalytic performance. Herein, a BiOI/ZnO composite photocatalyst with a 3D flower-like architecture was successfully prepared, which was stably immobilized on three-dimensional porous lignocellulosic biomass Juncus effusus (JE) fiber. The outstanding photocatalytic performance of the BiOI/ZnO-JE fiber was confirmed by the degradation of tetracycline hydrochloride (TC, 90%), ciprofloxacin (CIP, 79%), and norfloxacin (NOR, 81%). The enhanced photocatalytic activities were mainly attributed to the synergistic absorption performance of the lignocellulosic JE and the effective transfer and separation of charges. Moreover, the hydroxyl (·OH) and superoxide radicals (·O2-) are the main reactive species in the photocatalytic process according to the analysis. This work may provide a novel perspective for constructing high-performance lignocellulosic-based photocatalytic materials.
摘要：
半导体异质结工程和三维(3D)结构构造已被认为是增强光催化性能的非常理想的策略。在这里，成功制备了具有3D花状结构的BiOI/ZnO复合光催化剂,将其稳定固定在三维多孔木质纤维素生物质Juncuseffusus（JE）纤维上。通过降解盐酸四环素（TC，90%)，环丙沙星（CIP，79%），和诺氟沙星(NOR，81%)。增强的光催化活性主要归因于木质纤维素JE的协同吸收性能以及电荷的有效转移和分离。此外，根据分析，羟基（·OH）和超氧自由基（·O2-）是光催化过程中的主要活性物质。这项工作可能为构建高性能的木质纤维素基光催化材料提供新的视角。
