Photocatalysis in Circular Economy

A special issue of Chemistry (ISSN 2624-8549). This special issue belongs to the section "Photochemistry and Photophysics".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 4356

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Guest Editor
Dipartimento di Ingegneria Chimica, Civile ed Ambientale, Università degli Studi di Genova and INSTM Unit Genova, Via all'Opera Pia 15A, 16145 Genova, Italy
Interests: heterogeneous catalytic processes; characterization of surface active sites; SCR of NOx with NH3; catalytic oxidation; catalytic combustion of hydrocarbons and VOCs; C-H bonds activation; H2 production by steam reforming of bio-alcohols; CO2 photoreduction; photocatalytic H2 production
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Department of Applied Science and Technology and PoliTO BiomED Interdepartmental Lab, Politecnico di Torino; INSTM Unit of Torino—Politecnico, 10129 Turin, Italy
Interests: surface properties of materials; nanoporous materials; TiO2 modification; photocatalysis; emerging pollutants' removal; IR spectroscopy; CO2 reduction
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Chemical Plants and Industrial Chemistry Group, Dip. Chimica, Università degli Studi di Milano, CNR-ISTM and INSTM Unit Milano-Università, via C. Golgi 19, 20133 Milan, Italy
Interests: chemical process design; process unit simulation and design; catalyzed reactions; thermodynamics; physical chemistry

Special Issue Information

Dear Colleague,

The theme of this issue is “Photocatalysis in a Circular Economy”. With this topic, we aspire to attract innovative and interdisciplinary contributions from pure and applied chemistry, with a particular focus on sustainable development. The scale-up from the intrinsic photoactivity of semiconductor materials to a photoreactor able to transform scraps to energy and/or chemicals using solar energy combines innovative chemistry and technology. Examples of the areas in which papers would be especially welcome are: Development of photoactive materials, water splitting, CO2 capture and photoreduction, photoreforming of biomasses, and photoreactors design.

Dr. Gianguido Ramis
Prof. Dr. Barbara Bonelli 
Dr. Antonio Tripodi 
Guest Editors

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Keywords

  • Photoreactors
  • Photocatalysts
  • Solar energy
  • Circular economy

Published Papers (2 papers)

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Research

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11 pages, 3341 KiB  
Article
Effective BiOCl Electrons Collector for Enhancing Photocarrier Separation of Bi2WO6/BiOCl Composite
by Yi Zheng, Siqi Wang, Min Shu, Yi Wang and Dumeng Cao
Chemistry 2022, 4(3), 765-775; https://doi.org/10.3390/chemistry4030054 - 28 Jul 2022
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Abstract
Enhancing photocarrier separation is a key step of photocatalysis, and in situ constructed composition interface is an advanced method to achieve this aim. Therefore, we report a face-to-face Bi2WO6/BiOCl (BWOC) which was synthesized via the continuous in situ ion-exchange [...] Read more.
Enhancing photocarrier separation is a key step of photocatalysis, and in situ constructed composition interface is an advanced method to achieve this aim. Therefore, we report a face-to-face Bi2WO6/BiOCl (BWOC) which was synthesized via the continuous in situ ion-exchange method. As UV light is harmful to the human body, BWOC exhibits excellent photocatalytic activity only in visible light, and this is an important feature because visible light is a human-friendly operating condition. Under 50 W visible LED lamp illumination, unexcited BiOCl (BOC) only extracts electrons of excited Bi2WO6 (BWO), and holes remain on BWO, resulting in excellent photocarrier spatial separation efficiency through the face-to-face interface. This is why BWOC can be safe to use for the removal of hazardous substances. Compared with BWO and BOC, BWOC possesses 2.6 and 5.6 times higher photodegradation activity than RhB. This work provides a novel insight of efficient visible light photocatalytic system for environmental remediation. Full article
(This article belongs to the Special Issue Photocatalysis in Circular Economy)
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Review

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6 pages, 1712 KiB  
Review
Hydrotrifluoromethylation of Styrene and Phenylacetylene Derivatives under Visible-Light Photoredox Conditions
by Amel Souibgui, Mongi ben Mosbah, Ridha ben Salem, Younes Moussaoui and Anis Tlili
Chemistry 2022, 4(3), 1010-1015; https://doi.org/10.3390/chemistry4030068 - 6 Sep 2022
Cited by 1 | Viewed by 1793
Abstract
Photoredox processes have emerged recently as a powerful tool for methodology developments. In this context, the hydrotrifluoromethylation of alkenes and alkynes using visible light photoredox methodologies has proven its efficiency these last years. This micro-review summarizes the latest developments in this field. Full article
(This article belongs to the Special Issue Photocatalysis in Circular Economy)
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