Porous wood decorated with gold nanoparticles as flow-through membrane reactor for catalytic hydrogenation of methylene blue and 4-nitrophenol

Wood has a natural three-dimensional porous structure. As one main component of wood, lignin is rich in variety reducing functional groups which can situ reduce Au (III) into (0). Through this efficient, green and convenient method, gold nanoparticles (Au NPs) were generated anchored Paulownia Sieb. et Zucc. Chip to fabricate an NP/Wood membrane reactor. The characterization by SEM, XRD XPS showed that NPs uniformly dispersed wood. catalytic capacity the reactor for reduction methylene blue (MB) 4-nitrophenol (4-NP) evaluated. exhibited substantial reaction rate constants 0.162 min−1 0.152 min−1, respectively. filter membrane, flowing investigation revealed hydrogenation MB 4-NP was over 98% as flux 0.973 × 103 L/m2·h. Even after eight cycles, slightly decreased, while still remained above 90%. This synthetic proved be viable potential material treatment dyes nitroaromatic pollutants, addition, using wood feedstock provides sustainable feature work.