Citation: Yujing Jiang, Yifan Chai, Yuanfan Jiang, Shihao Tian, Ziliang Wang, Yue Cao, Jason Chun-Ho Lam, Jun-Jie Zhu, Richen Lin, Wenlei Zhu. Bacteria photosensitized by CdS@Au@polymeric coatings for sustainable carbon dioxide fixation and bioplastic production[J]. Chinese Chemical Letters, ;2026, 37(7): 111115. doi: 10.1016/j.cclet.2025.111115 shu

Bacteria photosensitized by CdS@Au@polymeric coatings for sustainable carbon dioxide fixation and bioplastic production

Yujing Jiang ^{a, 1} ,
Yifan Chai ^{a, 1} ,
Yuanfan Jiang ^{a, 1} ,
Shihao Tian ^a ,
Ziliang Wang ^a ,
Yue Cao ^c ,
Jason Chun-Ho Lam ^d ,
Jun-Jie Zhu ^a ,
Richen Lin ^{b, *,} ,
Wenlei Zhu ^{a, *,}

a.
School of Environment, School of Chemistry and Chemical Engineering, State Key Laboratory of Water Pollution Control and Green Resource Recycling, State Key Laboratory of Analytical Chemistry for Life Science, the Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
b.
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
c.
Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials, Nanjing University of Posts & Telecommunications, Nanjing 210096, China
d.
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR 999077, China

richenlin@seu.edu.cn

wenleizhu@nju.edu.cn

Received Date: 26 December 2024
Revised Date: 14 March 2025
Accepted Date: 18 March 2025
Available Online: 19 March 2025

Figures(4)

The development of photosynthetic biological systems (PBSs) presents a promising approach to mitigating global climate change. However, the practical application of PBSs remains hindered by their low product yields. Key determinants of production efficiency include light utilization, electron transfer efficiency, and catalyst stability. To address these challenges, we developed a high-performance Cupriavidus necator/CdS@Au@Poly dimethyl diallyl ammonium chloride (C. necator/CdS@Au@PDDA) biohybrid system for the photocatalytic conversion of CO₂ into bioplastic poly(3-hydroxybutyrate) (PHB). The incorporation of Au nanoclusters extends the visible light absorption range and alleviates photocorrosion of CdS, while the PDDA modification enhances electron transfer rates and enables the material to firmly adhere to the bacterial surface. In situ H₂ production by CdS@Au@PDDA drives CO₂ fixation through bacterial metabolic pathways, achieving a quantum efficiency of 2.76% ± 0.22% and a maximum PHB yield of 53.6 ± 5.2 mg/L, representing the highest yield reported for C. necator-based artificial PBSs. This biohybrid system demonstrates the effective integration of advanced nanomaterials with microbial processes, offering a robust platform for sustainable bioplastic production through carbon-neutral artificial photosynthesis technology and providing a novel perspective for addressing the global challenge of microplastic pollution.
- Photosynthetic biological systems,
- Photocatalytic CO₂ conversion,
- Hydrogen generation,
- Poly(3-hydroxybutyrate),
- Quantum efficiency
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