Photodegradation of lignin biowaste catalyzed by biosynthesized zinc oxide nanoparticles using the leaf extract of Aristotelia chilensis
Date
Authors
DIAZ HARRIS, RAMIRO JOEL
Vera, Joelis
Herrera, Wence
Hermosilla, Edward D.
Schalchli, Heidi Laura
Díaz-Harris, Ramiro
Fincheira, Paola
Seabra, Amedea Barozzi
Quiroz, Andrés
Tortella, Gonzalo R.
Rubilar, Olga
Vera, Joelis
Herrera, Wence
Hermosilla, Edward D.
Schalchli, Heidi Laura
Díaz-Harris, Ramiro
Fincheira, Paola
Seabra, Amedea Barozzi
Quiroz, Andrés
Tortella, Gonzalo R.
Rubilar, Olga
Authors
Date
Datos de publicación:
10.1016/j.rineng.2024.103866
Keywords
Chemical Synthesis - Depolymerization - Green Synthesis - Kraft Lignin - Photocatalysts, Photodegradation - Zinc Oxide Nanoparticles - Biodegradation - Depolymerization - Doping (additives) - Green Synthesis - Methyl Ester - Photocatalysts - Photocatalytic Activity - Photodegradation - Photolysis - Photopolymerization - Zno Nanoparticles - Biogenics - Green Synthesis - Kraft Lignin - Leaf Extracts - Photo Degradation - Photocatalyst, Photodegradation - Photocatalytic Activities - Synthesised - Zinc Oxide Nanoparticles - Zno - Fourier Transform Infrared Spectroscopy - Calcination - Lignins - Phthalic Acid - Zinc Oxide
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Abstract
This study evaluated the photocatalytic activity of zinc oxide nanoparticles (ZnO-B) synthesized using a leaf extract of Aristotelia chilensis and the effect of calcination at different temperatures (400, 600, and 800 °C) on their properties and performance. The photocatalytic degradation of lignin was compared among biogenic ZnO-B, chemically synthesized ZnO (ZnO Ch), and commercial ZnO (ZnO C). The lignin degradation rates after 24 h were ZnO B_400 (60.8%), ZnO B_600 (90.57%), ZnO B_800 (27.83%), ZnO Ch (23.2%), and ZnO C (80.7%). The nanoparticles were characterized by TEM, XRD, FTIR, and UV vis spectroscopy. The physicochemical properties and photocatalytic efficiency of ZnO B were significantly influenced by calcination temperature, with ZnO B_600 demonstrating superior photocatalytic activity under UV-A and simulated sunlight. GC MS analysis of lignin degradation products revealed the transformation of lignin into high-value chemicals, including 2,3-hexanediol, 1,2-benzenedicarboxylic acid diethyl ester, phthalic acid cyclobutyl isobutyl ester, 2-(1-oxopropyl)-benzoic acid, and 4-hydroxy-2-butanone. These findings highlight the potential of biogenic ZnO-B nanoparticles in photocatalytic processes for the valorization of Kraft lignin into value-added compounds of interest to the chemical, cosmetic, and pharmaceutical industries. © 2025 Elsevier B.V., All rights reserved.
Description
Keywords
Chemical Synthesis , Depolymerization , Green Synthesis , Kraft Lignin , Photocatalysts, Photodegradation , Zinc Oxide Nanoparticles , Biodegradation , Depolymerization , Doping (additives) , Green Synthesis , Methyl Ester , Photocatalysts , Photocatalytic Activity , Photodegradation , Photolysis , Photopolymerization , Zno Nanoparticles , Biogenics , Green Synthesis , Kraft Lignin , Leaf Extracts , Photo Degradation , Photocatalyst, Photodegradation , Photocatalytic Activities , Synthesised , Zinc Oxide Nanoparticles , Zno , Fourier Transform Infrared Spectroscopy , Calcination , Lignins , Phthalic Acid , Zinc Oxide
Citation
10.1016/j.rineng.2024.103866