Biophotoelectrochemistry for the treatment of emerging contaminants

Hu, Jing; Chen, Man; Gu, WenZhi; Deng, WenEr; Hong, MingQiu; Hu, AnDong; Ye, Jie; Zhou, ShunGui

doi:10.1007/s11431-024-2691-1

Sci. China Technol. Sci.

2024

DOI: 10.1007/s11431-024-2691-1

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Biophotoelectrochemistry for the treatment of emerging contaminants

Jing Hu,

Man Chen,

WenZhi Gu

et al.

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References 143 publications

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Natural AIEgens as Ultraviolet Sunscreens and Photosynergists for Solar Fuel Production

Gu,

Hu,

et al. 2024

Environ. Sci. Technol.

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Bio-nano hybrids (BNH), combining semiconductors and microorganisms, have shown great promise for effective solar-to-fuel energy conversion. However, the high-energy ultraviolet (UV) photons in the solar spectrum can cause severe photocorrosion of semiconductors and irreversible photodamage to microorganisms within BNH. Here, we developed an encapsulation strategy using natural luminogens with aggregation-induced emission characteristics (AIEgens) to construct a protective layer for BNH, effectively shielding them against high-energy UV photons. We incorporated natural berberine (BBR) into the BNH composed of Methanosarcina barkeri and polymeric carbon nitrides (CN x ). The self-assembled BNH−BBR system displayed a 2.75-fold higher CH 4 yield than BNH under simulated solar irradiation. Mechanism analysis revealed that BBR acted as a UV sunscreen for BNH by converting high-energy short wavelengths into low-energy long wavelengths, thereby reducing the accumulation of reactive oxygen species and alleviating the photocorrosion of CN x . Furthermore, BBR functioned as a photosynergist for BNH by regulating photoelectron production and utilization, enhancing the intracellular energy formation in M. barkeri for growth and metabolism. This work provides important insights into the effective and scalable conversion of CO 2 into valuable biofuels with BNH under light illumination containing high-energy photons.

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Natural AIEgens as Ultraviolet Sunscreens and Photosynergists for Solar Fuel Production

Gu,

Hu,

et al. 2024

Environ. Sci. Technol.

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Biophotoelectrochemistry for the treatment of emerging contaminants

Cited by 1 publication

References 143 publications

Natural AIEgens as Ultraviolet Sunscreens and Photosynergists for Solar Fuel Production

Natural AIEgens as Ultraviolet Sunscreens and Photosynergists for Solar Fuel Production

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