In a remarkable contribution to the field of green chemistry, Dr Jaidev Kaushik, Assistant Professor in the Department of Chemistry, has published a significant research paper titled “Green Light Promoted Photoreduction of Carbonate to Acetic Acid by Zinc Ash-Derived ZCu@ZnO” in the prestigious Q1 journal, ACS Sustainable Chemistry & Engineering, with an impressive impact factor of 7.1.
Dr Kaushik’s research addresses the pressing need for sustainable methods of producing acetic acid, a widely used chemical in various industrial applications. The study explores an innovative photoreduction process that utilises green light to convert carbonate compounds into acetic acid using a novel catalyst derived from zinc ash. This approach not only showcases the potential for an eco-friendly production method but also emphasises the recycling of zinc waste, turning a byproduct into a valuable resource.
The paper highlights the efficiency of Zinc Ash-Derived ZCu@ZnO as a catalyst in the photoreduction process, demonstrating its effectiveness under green light conditions. The findings could pave the way for more sustainable practices in chemical manufacturing, aligning with global efforts to reduce carbon emissions and promote environmentally friendly technologies.
This publication underscores the commitment of SRM University – AP to fostering innovative research that addresses contemporary environmental challenges. Dr. Kaushik’s work exemplifies the university’s focus on sustainability and its aspiration to lead in the field of scientific research.
As the demand for sustainable chemical processes grows, Dr Kaushik’s research will likely inspire further investigations and developments in green chemistry, contributing to a more sustainable future.
Abstract of the Research
Mineralized carbon (carbonate) is the readily available carbon dioxide (CO2) source in acidic aqueous conditions. The photoreduction of carbonate to value-added hydrocarbons could be a novel finding performed in the presence of monochromatic visible light and waste-derived photo-active nanomaterials. In this report, we have synthesized ZnO particles from the zinc ash generated as waste in the galvanization process in the steel industry; ZnO particles were decorated with CuO nanoparticles and then further activated by reducing them to get a heterojunction photocatalyst (ZCu@ZnO). After that, ZCu@ZnO is utilized to photoreduce carbonate to acetic acid (AcOH) in a peroxy-rich solvent as a hydrogen-rich solvent under various monochromatic light sources and sunlight. Additionally, different physical and chemical parameters, such as solvent mixture, light sources, photocatalysts, time, etc., were optimized to get the maximum yield of AcOH under monochromatic light of 525 nm wavelength (Green light).
Explanation of the Research in Layperson’s Terms
This report is proposing the solution of two problem statements; first, utilization of zinc ash generated as a by-product after galvanization process; and second, cost-effective and energy efficient process for conversion of carbonates to value-added C2 hydrocarbon.
Practical Implementation and the Social Implications associated with the Research
The process adds value by converting low-value waste into high-value nanomaterials, potentially offering new revenue streams for recycling and waste management industries. It supports the principles of a circular carbon economy and green chemistry focusing on synthesis of hydrocarbons from carbonates.
Collaboration
Dr Sumit Kumar Sonkar (MNIT Jaipur, India)
Future Research Plans
1. The adsorption/photodegradation-assisted quick and efficient removal of next generation advanced pollutants such as microplastic, pesticides, pharmaceutical waste, etc. by hydrophobic carbon aerogel and their doped and functionalized versions.
2. Utilizing waste derived heterogeneous catalysts in organic transformation reactions.
3. Selective sensing of toxic metal ions/biomarkers/biomolecules using fluorescent nanomaterials.
4. Upcycling of carbonates/CO2 via photo/thermal assisted catalyzed reactions to get C1 and C2 hydrocarbons (green fuel).