Photocatalytic Pretreatment of Commercial Lignin Using TiO2-ZnO Nanocomposite-Derived Advanced Oxidation Processes for Methane Production Synergy in Lab Scale Continuous Reactors Article Swipe
Yu‐Ming Chu
,
Hafiz Muhammad Asif Javed
,
Muhammad Awais
,
M. Ijaz Khan
,
Sana Shafqat
,
Falak Sher Khan
,
Muhammad Salman Mustafa
,
Dawood Ahmed
,
Sami Ullah Khan
,
R.M. Arif Khalil
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/catal11010054
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/catal11010054
The photocatalytic pretreatment of lignocellulosic biomass to oxidize lignin and increase biomass stability has gained attention during the last few years. Conventional pretreatment methods are limited by the fact that they are expensive, non-renewable and contaminate the anaerobic digestate later on. The present study was focused to develop a metal-derived photocatalyst that can work with visible electromagnetic spectra light and oxidize commercial lignin liquor. During this project the advanced photocatalytic oxidation of lignin was achieved by using a quartz cube tungsten T3 Halogen 100 W lamp with a laboratory manufactured TiO2-ZnO nanoparticle (nanocomposite) in a self-designed apparatus. The products of lignin oxidation were confirmed to be vanillic acid (9.71 ± 0.23 mg/L), ferrulic acid (7.34 ± 0.16 mg/L), benzoic acid (6.12 ± 0.17 mg/L) and p-coumaric acid (3.80 ± 0.13 mg/L). These all products corresponded to 85% of the lignin oxidation products that were detectable, which is significantly more than any previously reported lignin pretreatment with even more intensity. Furthermore, all the pretreatment samples were supplemented in the form of feedstock diluent in uniformly operating continuously stirred tank reactors (CSTRs). The results of pretreatment revealed 85% lignin oxidation and later on these products did not hinder the CSTR performance at any stage. Moreover, the synergistic effects of pretreated lignin diluent were seen that resulted in 39% significant increase in the methane yield of the CSTR with constant operation. Finally, the visible light and nanoparticles alone could not pretreat lignin and when used as diluent, halted and reduced the methane yield by 37% during 4th HRT.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/catal11010054
- https://www.mdpi.com/2073-4344/11/1/54/pdf?version=1609991985
- OA Status
- gold
- Cited By
- 32
- References
- 33
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3120505393
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3120505393Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/catal11010054Digital Object Identifier
- Title
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Photocatalytic Pretreatment of Commercial Lignin Using TiO2-ZnO Nanocomposite-Derived Advanced Oxidation Processes for Methane Production Synergy in Lab Scale Continuous ReactorsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
-
2021-01-02Full publication date if available
- Authors
-
Yu‐Ming Chu, Hafiz Muhammad Asif Javed, Muhammad Awais, M. Ijaz Khan, Sana Shafqat, Falak Sher Khan, Muhammad Salman Mustafa, Dawood Ahmed, Sami Ullah Khan, R.M. Arif KhalilList of authors in order
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https://doi.org/10.3390/catal11010054Publisher landing page
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https://www.mdpi.com/2073-4344/11/1/54/pdf?version=1609991985Direct link to full text PDF
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2073-4344/11/1/54/pdf?version=1609991985Direct OA link when available
- Concepts
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Lignin, Chemistry, Photocatalysis, Continuous stirred-tank reactor, Lignin peroxidase, Nuclear chemistry, Pulp and paper industry, Materials science, Organic chemistry, Catalysis, Peroxidase, Enzyme, Engineering, Physical chemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
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32Total citation count in OpenAlex
- Citations by year (recent)
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2025: 9, 2024: 7, 2023: 7, 2022: 5, 2021: 4Per-year citation counts (last 5 years)
- References (count)
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33Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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