Special Issue "Photocatalytic Membrane and Reactor for Environmental Remediation Processes"

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Photocatalysis".

Deadline for manuscript submissions: 15 September 2020.

Special Issue Editors

Prof. Dr. Stefano Curcio
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Guest Editor
Department of Computer Engineering, Modeling, Electronics and Systems (D.I.M.E.S.), Laboratory of Transport Phenomena and Biotechnology, University of Calabria, Cubo-39c, Via P. Bucci, 87036 Rende, Italy
Interests: Modeling, Simulation. ANN, Hybrid Model, Food Engineering, Membrane, Photocatalysis.
Special Issues and Collections in MDPI journals
Dr. Sudip Chakraborty
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Guest Editor
Department of Computer Engineering, Modeling, Electronics and Systems (D.I.M.E.S.), Laboratory of Transport Phenomena and Biotechnology, University of Calabria, Cubo-42a, Via P. Bucci, 87036 Rende, Italy
Interests: Photocatalysis; Membrane reactor; Energy Conversion; Nanomaterials; Waste valorization; Inorganic Catalyst; Plasmonics
Special Issues and Collections in MDPI journals
Dr. Nhat Truong Nguyen
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Guest Editor
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
Interests: Heterogeneous photocatalysis; H2 generation; CO2 reduction; nanostructures;

Special Issue Information

Dear Colleagues,

The photo mineralization of organics by semiconductor photocatalysts is an area of intensive research. Ideally, the end products of these processes should be carbon dioxide, water, and inorganic mineral salts, which have a minimum environmental impact. Waste discharge from various industries is a major source of pollution and is increasing day by day. With stringent environmental regulations, it is necessary to remove the harmful component from the waste discharge before throwing it into the environment with sustainable technologies using low external conventional energy. In addition, as an example, to avoid the contamination of natural water bodies, pretreatment of municipal and industrial effluents is needed before their release into the environment described. Research oriented toward inorganic as well as organic photocatalysts, including plasmonics, is desirable to address the environmental issues, and new technologies, including membranes, are desirable for the final purification in industrial processes. Photocatalytic adsorption studies have also shown a good confirmation of this technology during the reaction at initial stages in porous support.

In this Special Issue different applications of photocatalytic reactors, including membranes, will be introduced.

Prof. Dr. Stefano Curcio
Dr. Sudip Chakraborty
Dr. Nhat Truong Nguyen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Photocatalysis
  • Membrane reactor environmental remediation pharmaceutical waste
  • Nanocatalyst
  • Plasmonics nanoparticle
  • Waste treatment

Published Papers (1 paper)

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Review

Open AccessReview
Critical Issues and Guidelines to Improve the Performance of Photocatalytic Polymeric Membranes
Catalysts 2020, 10(5), 570; https://doi.org/10.3390/catal10050570 - 19 May 2020
Abstract
Photocatalytic membrane reactors (PMR), with immobilized photocatalysts, play an important role in process intensification strategies; this approach offers a simple solution to the typical catalyst recovery problem of photocatalytic processes and, by simultaneous filtration and photocatalysis of the aqueous streams, facilitates clean water [...] Read more.
Photocatalytic membrane reactors (PMR), with immobilized photocatalysts, play an important role in process intensification strategies; this approach offers a simple solution to the typical catalyst recovery problem of photocatalytic processes and, by simultaneous filtration and photocatalysis of the aqueous streams, facilitates clean water production in a single unit. The synthesis of polymer photocatalytic membranes has been widely explored, while studies focused on ceramic photocatalytic membranes represent a minority. However, previous reports have identified that the successful synthesis of polymeric photocatalytic membranes still faces certain challenges that demand further research, e.g., (i) reduced photocatalytic activity, (ii) photocatalyst stability, and (iii) membrane aging, to achieve technological competitiveness with respect to suspended photocatalytic systems. The novelty of this review is to go a step further to preceding literature by first, critically analyzing the factors behind these major limitations and second, establishing useful guidelines. This information will help researchers in the field in the selection of the membrane materials and synthesis methodology for a better performance of polymeric photocatalytic membranes with targeted functionality; special attention is focused on factors affecting membrane aging and photocatalyst stability. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Critical bottlenecks and guidelines to improve the performance of polymeric photocatalytic membranes
Authors: Inmaculada Ortiz Uribe; Diban-Ibrahim Gomez Nazely; Rivero Martinez Maria Jose; Urtiaga Mendia Ana Maria
Affiliation: Chemical and Biomolecular Department University of Cantabria 39005 Santander
Abstract: Photocatalytic membrane reactors (PMR), with immobilized photocatalysts, play an important role in process intensification strategies; this approach offers a simple solution to the typical catalyst recovery problem of photocatalytic processes and, by simultaneous filtration and photocatalysis of the aqueous streams, facilitates clean water production in a single unit. However, as it has been identified in previews reviews, the successful synthesis of photocatalytic membranes still faces certain challenges that demand further research, e.g., i) reduced photocatalytic activity, ii) photocatalyst stability, and iii) membrane ageing, to achieve technological competitiveness with respect to suspended photocatalytic systems. The novelty of this review is to go a step further to preview literature by first, critically analyzing the factors behind these major limitations and second, establishing useful guidelines. This information will help researchers in the field in the selection of the membrane materials and synthesis methodology to obtain photocatalytic membranes with targeted functionality, in terms of filtration performance, antifouling properties and photocatalytic activity; special attention is focused on factors affecting membrane ageing and photocatalyst stability.

Title: Doped/exfoliated C3N4 photocatalyst for air pollutant removal
Authors: J. Krysa; S. Pausova; M. Baudys; K. Koci; P. Praus
Affiliation: Department of Inorganic Technology Faculty of Chemical Technology University of Chemistry and Technology Prague Technicka 5, 166 28 PRAHA 6 Czech Republic

Title: The performance of Zinc Oxide-Cymbopogon Citratus (ZnO-CC) photocalalyst in Membrane Photocatalytic Reactor (MPR) for Palm Oil Mill Secondary Effluent Treatment
Authors: Nur Hanis Hayati Hairom
Affiliation: Department of Chemical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Hab Pendidikan Tinggi Pagoh, KM1, Jalan Panchor, 84600 Panchor, Muar, Johor, Malaysia.
Abstract: The investigations on the performance of zinc oxide-Cymbopogon Citratus (ZnO-CC) nanoparticles as photocatalyst in hybrid system membrane photocatalytic reactor (MPR) for palm oil mill secondary effluent (POMSE) polishing treatment are reported. In this present study, the effects of operating conditions (pH, initial concentrations, and catalyst loadings) on the normalize flux and water quality of POMSE were elucidated. Fouling flux behaviour and mechanism of the membrane fouling are also elucidated using the Wiesner and Aptel model. The results showed that the greater colour removal efficiency (99.99%) and normalized flux (0.33) was observed at pH 10, 0.10 g/L of ZnO-CC loading and initial concentration of POMSE is 50%. The experimental data appeared to have a better fitting correlated to the cake formation, standard blocking and intermediate blocking mechanism depending on the operating conditions. Thus, the findings from this study will be beneficial to improve the current technology employed in palm oil mill industry to meet the requirement of discharge standard limit for treated POMSE. Keywords: Zinc oxide, Photocatalyst, Membrane photocatalytic reactor, Palm oil mill secondary effluent

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