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| Solid-Solid Oxidative Depolymerization of Corncob Enzymatic Lignin by Synergism of Perovskite and Persulfate under Visible Light |
| Received:October 23, 2021 |
| DOI：10.11981/j.issn.1000-6842.2022.03.37 |
| Key Words:perovskite;sodium persulfate;synergism;lignin;oxidation depolymerization |
| Fund Project:区域发展项目（2020N3005）；福建省高校产学合作项目（2019H6008）；2021年省级科技创新重点项目（2021G02001）。 |
| Author Name | Affiliation | Postcode | | XU Zhuangqin* | College of Environmental and Safety Engineering， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Biomass Resource Technology Development Base， Fuzhou， Fujian Province， 350116
Fujian Rural Waste Green Recycling Technology Engineering Research Center， Fuzhou， Fujian Province， 350116 | 350116 | | LIU Minghua | College of Environmental and Safety Engineering， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Biomass Resource Technology Development Base， Fuzhou， Fujian Province， 350116
Fujian Rural Waste Green Recycling Technology Engineering Research Center， Fuzhou， Fujian Province， 350116
College of Environmental and Biological Engineering， Putian University， Putian， Fujian Province， 351100 | 351100 | | LIN Jiantao | College of Environmental and Safety Engineering， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Biomass Resource Technology Development Base， Fuzhou， Fujian Province， 350116
Fujian Rural Waste Green Recycling Technology Engineering Research Center， Fuzhou， Fujian Province， 350116 | 350116 |
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| Abstract: |
| Lanthanide perovskite catalyst （LaFe0.9Ni0.1O3） was prepared by sol-gel method， and effect of solid-solid oxidative depolymerization of corncob enzymatic lignin by synergism of LaFe0.9Ni0.1O3 and persulfate under NPT and visible light conditions was explored. The results showed that SO4-· was produced by LaFe0.9Ni0.1O3 activating sodium persulfate， resulting in the breakage of the β-ether bond and the methoxy group of lignin， G-type products such as vanillin and syringaldehyde were obtained during this process and the conversion ratio of lignin was nearly 2 times higher than that of the light-depolymerization group. At the same time， LaFe0.9Ni0.1O3 induced to produce small molecule compounds， which is beneficial to further study of the oriented oxidative degradation of lignin. |
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