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Peer-reviewedCC BY 4.0Exploration

Cold‐adapted Ligninolytic Nanozyme Unveiling New Horizons in Black Liquor Treatment Under Mild Condition

  • Qing Tian1,2
  • Huile Liu1,2
  • Yao Chen1,2
  • Xiaohe Miao3
  • Rong Yang1
  • Yangjun Guo1
  • Mato Knez4,5,6
  • Xiyun Yan7,2
  • Kelong Fan7,2
  • Lianbing Zhang1,2
7 affiliations
  1. 1School of Life Sciences and Technology Northwestern Polytechnical University Xi'an China
  2. 2Nanozyme Laboratory in Zhongyuan Henan Academy of Innovations in Medical Science Zhengzhou China
  3. 3Instrumentation and Service Center For Physical Sciences Westlake University Hangzhou China
  4. 4CIC NanoGUNE San Sebastian Spain
  5. 5IKERBASQUE Basque Foundation for Science Bilbao Spain
  6. 6Fac Phys Univ Rijeka Rijeka Croatia
  7. 7CAS Engineering Laboratory For Nanozyme Key Laboratory of Biomacromolecules (CAS) CAS Center for Excellence in Biomacromolecules Institute of Biophysics Chinese Academy of Sciences Beijing China
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Abstract

Kraft black liquor, characterised by high lignin content, poses significant challenges for efficient treatment under mild conditions. This study unveils a pioneering solution via a novel cold‐adapted ligninolytic nanozyme constructed from an amorphous manganese‐containing metal‐organic framework (aMnMOF). The aMnMOF features low‐coordination Mn within mixed‐valence trinuclear Mn‐O clusters integrated with a long‐range disordered MOF architecture. This unique design significantly lowered the reaction energy barrier of the rate‐determining step to an exothermic process, endowing it with broad‐spectrum oxidase‐like activities over a wide temperature range (4°C–37°C) without additional oxidants. Based on these advancements, aMnMOF serves not only as a superior nanozyme for oxidative degradation of monomeric, dimeric and complex lignin compounds, but also as a sustainable pathway for real kraft black liquor treatment even under cold conditions, underscoring its superiority over existing methods. This innovative discovery not only advances the rational design of cold‐adapted nanozymes but also provides a significant breakthrough in the field of industrial wastewater treatment.

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Cite

BibTeXRIS
BibTeX
@article{tian2026coldadapted,
  title = {{Cold‐adapted Ligninolytic Nanozyme Unveiling New Horizons in Black Liquor Treatment Under Mild Condition}},
  author = {Qing Tian and Huile Liu and Yao Chen and Xiaohe Miao and Rong Yang and Yangjun Guo and Mato Knez and Xiyun Yan and Kelong Fan and Lianbing Zhang},
  journal = {Exploration},
  year = {2026},
  month = oct,
  doi = {10.1002/exp2.70237},
  url = {https://doi.org/10.1002/exp2.70237},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Cold‐adapted Ligninolytic Nanozyme Unveiling New Horizons in Black Liquor Treatment Under Mild Condition
AU  - Qing Tian
AU  - Huile Liu
AU  - Yao Chen
AU  - Xiaohe Miao
AU  - Rong Yang
AU  - Yangjun Guo
AU  - Mato Knez
AU  - Xiyun Yan
AU  - Kelong Fan
AU  - Lianbing Zhang
PY  - 2026
DA  - 2026/10/07
JO  - Exploration
DO  - 10.1002/exp2.70237
UR  - https://doi.org/10.1002/exp2.70237
AB  - Kraft black liquor, characterised by high lignin content, poses significant challenges for efficient treatment under mild conditions. This study unveils a pioneering solution via a novel cold‐adapted ligninolytic nanozyme constructed from an amorphous manganese‐containing metal‐organic framework (aMnMOF). The aMnMOF features low‐coordination Mn within mixed‐valence trinuclear Mn‐O clusters integrated with a long‐range disordered MOF architecture. This unique design significantly lowered the reaction energy barrier of the rate‐determining step to an exothermic process, endowing it with broad‐spectrum oxidase‐like activities over a wide temperature range (4°C–37°C) without additional oxidants. Based on these advancements, aMnMOF serves not only as a superior nanozyme for oxidative degradation of monomeric, dimeric and complex lignin compounds, but also as a sustainable pathway for real kraft black liquor treatment even under cold conditions, underscoring its superiority over existing methods. This innovative discovery not only advances the rational design of cold‐adapted nanozymes but also provides a significant breakthrough in the field of industrial wastewater treatment.
SN  - 2766-8509
SN  - 2766-2098
ER  -