Wood-derived products have the potential to address the challenging goal of preparing specialized and sustainable materials for large scale applications. Wood fibers (WF) are an abundant and renewable material with retained morphology and chemical composition. The present work explores the anchor and chromophore units of the cellulose and lignin fractions in wood fibers to prepare novel sustainable catalysts by immobilization of iron complexes of bio-derivable and biodegradable ligands, salicylic and anthranilic acids, and using microwave heating and greener solvents, Cyrene and tetrahydrofuran. The WF-[Fe(SalAnt)] material showed high catalytic performance in the reduction of 4-nitrophenol to 4-aminophenol by NaBH₄ in water, with k¹ of 0.293 min⁻¹ under visible light (halogen lamp, 100 W) or k¹ of 0.454 min⁻¹ under UV–visible irradiation. This material was reused for at least five cycles, with k¹ of 0.061 ± 0.008 min⁻¹ for catalytic cycles under visible light. No iron leaching is observed in the material by EDS upon the reuse procedures.

中文翻译：

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木纤维-水杨酸铁/邻氨基苯甲酸酯复合材料在可持续催化还原 4-硝基苯酚中的应用


木材衍生产品有可能解决为大规模应用准备专业和可持续材料这一具有挑战性的目标。木纤维 （WF） 是一种丰富且可再生的材料，具有保留的形态和化学成分。本研究探索了木纤维中纤维素和木质素组分的锚定和发色团单元，通过固定生物衍生和可生物降解配体、水杨酸和邻氨基苯甲酸的铁络合物，并使用微波加热和更环保的溶剂Cyrene和四氢呋喃来制备新型可持续催化剂。WF-[Fe（SalAnt）] 材料在水中通过 NaBH₄ 将 4-硝基苯酚还原为 4-氨基苯酚方面表现出高催化性能，在可见光下 k¹ 为 0.293 ^min-1（卤素灯，100 W），在紫外-可见光照射下 k¹ 为 0.454 ^min-1。这种材料被重复使用至少五个循环，在可见光下的催化循环 k¹ 为 0.061 ± 0.008 ^min-1。在再利用程序中，EDS 未在材料中观察到铁浸出。