Tandem strategy of photocatalytic preoxidation-ultrasonic cavitation depolymerization for lignin valorization

Liu, Chao; Liu, Bingyang; Wang, Xing; Xie, Zhanghong; Tong, Lili; Kong, Xiangchen; Fan, Yuyang; Xiao, Rui

doi:10.1016/j.biortech.2022.127880

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…[142][143][144] Due to the complex chemical structure of lignin, including the dense three-dimensional network aromatic ring structure and diverse chemical bond combinations, coupled with the role of intermolecular hydrogen bonds, it is difficult to achieve lignin depolymerization by traditional physical methods (mechanical processing and ultrasonic processing). [145][146][147][148] As a result, thermochemical, chemical, and biochemical depolymerization are primarily involved (Fig. 5).…”

Section: Synthesis Of Lpr From Depolymerized Ligninmentioning

confidence: 99%

Lignin as a green and multifunctional alternative to phenol for resin synthesis

Sun

Wang

et al. 2023

Green Chem.

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Section: Synthesis Of Lpr From Depolymerized Ligninmentioning

confidence: 99%

Lignin as a green and multifunctional alternative to phenol for resin synthesis

Sun

Wang

et al. 2023

Green Chem.

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“…This can usually be achieved in one of three ways: 29 Simultaneously, due to the influence of the preoxidation process, the original stable structure of the link bond between C α and C β is destroyed, which will make it more prone to fracture. 30,31 In fact, the preoxidation activation process of lignin by photocatalytic conversion can occur prior to depolymerization. 32 Photocatalysts employ the generation of photogenerated electronic and hole pairs to facilitate the chemical process.…”

Section: Photocatalytic Reforming Of Lignin From the Perspective Of U...mentioning

confidence: 99%

“…Thus, an average reduction of nearly 15–20 kcal/mol results, making the C β –O bond easier to break . Simultaneously, due to the influence of the preoxidation process, the original stable structure of the link bond between C α and C β is destroyed, which will make it more prone to fracture. , In fact, the preoxidation activation process of lignin by photocatalytic conversion can occur prior to depolymerization …”

Section: Photocatalytic Reforming Of Lignin From the Perspective Of U...mentioning

confidence: 99%

Review on Catalytic Cracking of Lignin for the Production of Fuels and High-Value-Added Chemicals: Advances, Challenges, Opportunities, and Outlook

Shen,

Xue,

Wang

et al. 2023

Energy Fuels

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Nowadays and in the future, environment and energy are important issues that people have to consider. In order to achieve energy sustainability and minimize the increase in environmental pressure, researchers have begun to gradually develop new ways of energy access. Biomass resource is a sustainable and efficient mode of energy supply, which has little impact on the environment. Among them, lignin is a rich organic compound in natural plants and is a promising biomass source. According to different forms of energy, different lignin catalytic cracking reactions can be used. This paper systematically summarizes the research progress of lignin catalytic cracking under different energy effects and focuses on the opportunities of lignin catalytic cracking at this stage. The challenges and future research directions of lignin catalytic cracking and directional conversion composite catalytic system are summarized and discussed. On this basis, a critical perspective based on experiment is proposed. It provides a richer catalytic model for the efficient conversion of lignin into fuel and high-value chemicals in the future. In conclusion, this Review offers insights into future directions for catalytic cracking of lignin through synergistic utilization of multiple energy sources.

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