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Green chemistry turns waste CO2 into amino acids

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10 Apr, 2025

This post was originally published on Sustainability Matters

Researchers have devised a sustainable way of turning waste carbon dioxide into amino acids for humans, in a breakthrough that seeks to reduce carbon emissions and pave the way for green chemistry technologies across various industries.

The research by Professor San Ping Jiang, from Curtin’s WA School of Mines: Minerals, Energy and Chemical Engineering, working with Professor Jingyun Zheng from China’s Hunan University and Professor Xin Wang from City University of Hong Kong — published in Science Advances —developed a sustainable method to convert waste carbon dioxide (CO2) and nitrophenyl ethane, commonly found in industrial wastewater, into a high-value amino acid (L-phenylalanine).

“This innovative process uses sunlight as the energy source and employs a specially designed silicon-based photocathode to achieve efficient chemical conversion,” Jiang said.

“The significance of this discovery lies in its potential to simultaneously address two critical global challenges: reducing carbon emissions and developing sustainable methods for producing essential biochemicals. By utilising CO2, a major greenhouse gas, and nitrophenyl ethane, which is commonly found in industrial wastewater, this process transforms environmental hazards into amino acids, a valuable feedstock used in food, pharmaceuticals and other industries. This finding opens up new possibilities for sustainable chemical production and represents a significant step forward in the development of green chemistry technologies that can benefit society while protecting our planet.”

Image credit: iStock.com/Drypsiak

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Government consulting on sustainable investment labelling

Government consulting on sustainable investment labelling

The Australian Government is starting consultation on sustainable investment product labelling, which is designed to give investors more confidence to put more capital to work in sustainable products.

The federal government said the release of this paper is a key step in implementing its Sustainable Finance Roadmap — designed to help mobilise the capital required for Australia to become a renewable energy superpower, modernising the financial markets and maximising the economic opportunities from net zero.

This consultation paper seeks views from investors, companies and the broader community on a framework for sustainable investment product labels.

These labels are designed to help investors and consumers identify, compare and make informed decisions about sustainable investment products to understand what ‘sustainable’, ‘green’ or similar words mean when they’re applied to financial products.

The government said a more robust and clear product-labelling framework will help investors and consumers invest in sustainable products with confidence and help tackle greenwashing.

This phase of consultation will run from 18 July to 29 August and help the government refine its design principles for the framework.

The consultation paper is available on the Treasury consultation hub.

Image credit: iStock.com/wenich-mit

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