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<p>The growing demand for energy worldwide and rapid depletion of fossil fuel resources has led to the advancement of clean and sustainable energy alternatives. Among diverse solar energy transformation strategies, photocatalyst bio enzyme integration for artificial photosynthesis has emerged as a promising route for the sustainable synthesis of C<sub>1</sub> fuels and value-added compounds. Using Aloe Vera, we developed a graphene-based photocatalyst (G@DQ) that was further functionalized with a light-absorbing organic molecule (1, 4-diaminoanthraquinone) and improved conductivity and reactivity through KOH activation. The effective absorption of visible light and electron transfer made possible by this design allows for the regeneration of NADH, which is subsequently utilized in an enzymatic process to transform CO<sub>2</sub> into formic acid (a C<sub>1</sub> fuel). The findings demonstrate that this adjustable, biomass-derived material may efficiently support light-driven CO<sub>2</sub> reduction, providing a promising foundation for the production of clean fuels and further optimization in artificial photosynthesis systems.</p>

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Harnessing Diamino Anthraquinone-Modified Biopolymer–Derived Activated Graphene for Solar-Driven Rhodium-Assisted Enzymatic CO₂ Fixation to C1fuel

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • Shiwangi,
  • Rajesh K. Yadav,
  • Kanchan Sharma,
  • Shaifali Mishra,
  • Jyoti Agrawal,
  • Rehana Shahin,
  • Vinay K. Mishra,
  • Surendra K. Jaiswal,
  • Anupma Yadav,
  • Geeta Srivastava,
  • Anurag Rai,
  • D. K. Dwivedi,
  • Jin-Ook Baeg,
  • Navneet K. Gupta

摘要

The growing demand for energy worldwide and rapid depletion of fossil fuel resources has led to the advancement of clean and sustainable energy alternatives. Among diverse solar energy transformation strategies, photocatalyst bio enzyme integration for artificial photosynthesis has emerged as a promising route for the sustainable synthesis of C1 fuels and value-added compounds. Using Aloe Vera, we developed a graphene-based photocatalyst (G@DQ) that was further functionalized with a light-absorbing organic molecule (1, 4-diaminoanthraquinone) and improved conductivity and reactivity through KOH activation. The effective absorption of visible light and electron transfer made possible by this design allows for the regeneration of NADH, which is subsequently utilized in an enzymatic process to transform CO2 into formic acid (a C1 fuel). The findings demonstrate that this adjustable, biomass-derived material may efficiently support light-driven CO2 reduction, providing a promising foundation for the production of clean fuels and further optimization in artificial photosynthesis systems.