Recalcitrant waste plastics such a polyethylene, polypropylene, and polystyrene are difficult to recycle and are mostly disposed of in landfills and eventually leached into the environmental as micro- and nano-plastics. This review explores how photo-, electro-, and combined photoelectro-catalytic processes can assist in the degradation and upcycling of waste plastic into different chemicals and mitigate their release to the environment. In this work, we discuss how the different reaction mechanisms proceed, explore the current relevant literature, and highlight the developments needed to advance the field.
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http://dx.doi.org/10.1002/cssc.202401714 | DOI Listing |
Adv Mater
December 2024
Institute of Frontier & Interdisciplinary Science, Shandong University, Qingdao, 266237, China.
Electrochromism stands out as a highly promising technology for applications including variable optical attenuators, optical switches, transparent displays, and dynamic windows. The pursuit of high-contrast tunability in electrochromic devices remains a challenging goal. Here, the first photochromic hydrogel electrolyte is reported for electro- and photo-dual responsive chromatic devices that yield a high transmittance contrast at 633 nm (ΔT = 83.
View Article and Find Full Text PDFSmall
December 2024
Department of Electrical and Electronic Engineering, Engineering Building A, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
Plasmonic catalysis, whereby either an optically resonating metal couples to a catalytic material or a catalytic metal particle achieves optical resonance, has been a mainstay of photo-catalysis research for the past few decades. However, a new field of metal-dielectric metamaterials, including plasmonic metamaterials, is emerging as the next frontier in catalysis research. With new optical behaviors that can be achieved by sub-wavelength structures, in either periodic or semi-periodic arrangements, metamaterials can overcome some of the limitations of conventional plasmonic catalysis.
View Article and Find Full Text PDFChemosphere
December 2024
São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São Carlense, 400, São Carlos, 13566-590, Brazil. Electronic address:
The present work investigated the application of UVC combined with electrogenerated HO (UVC/e-HO) for BTA degradation using a Printex L6 carbon-based (PL6C) gas diffusion electrode (GDE). The studies were carried out by analyzing the influence of the current density, pH and initial BTA concentration in the contaminant degradation process. Under optimal conditions using 0.
View Article and Find Full Text PDFChem Commun (Camb)
December 2024
School of Chemistry, The University of Glasgow, Glasgow G12 8QQ, UK.
The endeavour to develop high-performance cost-effective catalytic systems with a minimal amount of active components and generation of hazardous waste is a significant and formidable step towards enhancing the hydrogen evolution reaction and the development of design principles with potential value in large scale applications. Here we investigate the heterogenization process of molecular chalcoxide catalysts and explore their electro- and photo-catalytic efficacy in driving the hydrogen evolution reaction (HER).
View Article and Find Full Text PDFPhotoacoustics
December 2024
ASI Agenzia Spaziale Italiana - Centro di Geodesia Spaziale, Località Terlecchia, Matera, 75100, Italy.
Nowadays, the scientific community and industry are increasingly pressed to provide solutions for developing compact and highly-performing trace-gas sensors for several applications of crucial importance, such as environmental monitoring or medical diagnostics. In this context, this work describes a novel configuration, making use of a mid-IR spectrophone combining the compactness of a photo-acoustic setup, a non-conventional micro-electro-mechanical (MEMS) acousto-to-voltage transducer, and the sensitivity enhancement given by a cost-effective and easy-to-build dual-tube resonator configuration. In the optimal condition of sample pressure, the system developed in this work can achieve a minimum detection limit (MDL) equal to 0.
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