From Plastic Waste to Green Hydrogen and Valuable Chemicals Using Sunlight and Water

Author:

Anh Nguyen Thi Kim1ORCID,Trần‐Phú Thành12,Daiyan Rahman3,Minh Chau Ta Xuan1,Amal Rose3,Tricoli Antonio1ORCID

Affiliation:

1. Nanotechnology Research Laboratory Faculty of Engineering University of Sydney Sydney NSW 2006 Australia

2. Present address: Chemistry and Nanoscience Center National Renewable Energy Laboratory Golden CO 80401 USA

3. Particles and Catalysis Research Laboratory School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia

Abstract

AbstractOver 79 % of 6.3 billion tonnes of plastics produced from 1950 to 2015 have been disposed in landfills or found their way to the oceans, where they will reside for up to hundreds of years before being decomposed bringing upon significant dangers to our health and ecosystems. Plastic photoreforming offers an appealing alternative by using solar energy and water to transform plastic waste into value‐added chemical commodities, while simultaneously producing green hydrogen via the hydrogen evolution reaction. This review aims to provide an overview of the underlying principles of emerging plastic photoreforming technologies, highlight the challenges associated with experimental protocols and performance assessments, discuss recent global breakthroughs on the photoreforming of plastics, and propose perspectives for future research. A critical assessment of current plastic photoreforming studies shows a lack of standardised conditions, hindering comparison amongst photocatalyst performance. Guidelines to establish a more accurate evaluation of materials and systems are proposed, with the aim to facilitate the translation of promising fundamental discovery in photocatalysts design.

Funder

Australian Research Council

Australian Renewable Energy Agency

Publisher

Wiley

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