Special Issue "Innovative Catalytic and Photocatalytic Systems for Environmental Remediation"
Deadline for manuscript submissions: 31 October 2020.
Interests: photocatalysis for sustainable chemistry; photocatalytic and photo-Fenton processes for pollutants removal in wastewater; catalytic combustion of sewage sludge; decomposition and oxidative decomposition of H2S; hydrolysis of COS in liquid phase
Special Issues and Collections in MDPI journals
Interests: synthesis and characterization of catalytic materials; phosphors-based nanomaterials; nanostructured photocatalysts and supports; photocatalysis for the removal of pollutants from water and wastewater; membrane separation processes
Special Issues and Collections in MDPI journals
Today, water and air pollution are issues of great concern, due to the adverse effects that pollution has on the environment and human health. Therefore, cost-effective and appropriate air-pollution-control and water-treatment technologies must be explored and implemented. Many different approaches have been investigated and, in particular, catalytic processes may play a central role. For this reason, the design of new catalytic systems for the mitigation of environmental pollution is strongly necessary. This Special Issue is focused on “Innovative Catalytic and Photocatalytic Systems for Environmental Remediation”, featuring the state-of-the-art of this field. Research papers related to the synthesis and characterization of novel nanomaterials or nanocomposites and their uses in the removal of pollutants from liquid and gaseous phases are welcome in this Special Issue. Moreover, innovative structured catalysts for different purposes will also be considered.
Prof. Vincenzo Vaiano
Dr. Olga Sacco
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.
- Zero-valent iron (ZVI)
- Nanostructured photocatalysts
- Structured catalysts
- Water and wastewater treatment
- Gaseous streams treatment
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: Novel p–n junction Ag3PO4/(BiO)2CO3 photocatalyst with highly efﬁcient visible light photocatalytic activity for nitrogen oxide abatement
Authors: Wingkei Hoa,*, Bicheng Zhu, Shun Cheng Lee
Abstract: Novel p–n junction Ag3PO4/(BiO)2CO3 photocatalysts with different contents of Ag3PO4 were prepared by hydrothermal technique and precipitation method. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, UV–visible diffuse reﬂectance spectroscopy, N2 absorption–desorption isotherms, and photoluminescence spectroscopy. The photocatalytic activity of these samples was evaluated by NO removal under visible light irradiation for 30 min. Composites with surface area of 14–19 m2/g can absorb more visible light than pure (BiO)2CO3. Their recombination rates of electron–hole pairs were significantly reduced because of the introduction of Ag3PO4 and the formation of p–n junction. Compared to pure (BiO)2CO3 and Ag3PO4, Ag3PO4/(BiO)2CO3 composites indicate enhanced photocatalytic activity for NO removal. Optimal weight ratio of Ag3PO4 : (BiO)2CO3 was found to be 50% and NO removal ratio of the corresponding sample APO/BOC-50 was 56.0%, which was twice that of Ag3PO4 and thrice that of (BiO)2CO3.
Title: 2D/2D heterojunction of ultrathin Ti3C2 MXene/WO3 nanosheets for improved visible-light-driven photodegradation of RhB
Authors: Wanying Lei 1,*, Xin Pang 1, Hudie Yuan 1, Jian Wei 1 and Gang Liu 2,*
Affiliation: CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190
Abstract: Developing non-noble-metal catalysts is a prerequisite for the large-scale implementation of solar-driven photocatalytic technology. Herein, a 2D/2D nanoscale heterojunction composed of ultrathin Ti3C2 MXene and WO3 nanosheets was fabricated by a facile sonication approach. The resulting Ti3C2/WO3 nanohybrids was characterized by X-ray diffraction, transmission electron microscopy, UV–Vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The Ti3C2/WO3 nanohybrids exhibited Ti3C2 content-dependent photoactivity toward RhB photocatalytic degradation under visible-light illumination. 7 wt% Ti3C2/WO3 nanohybrids exhibited the greatest photoactivity, which was 3.2 times than that of pristine WO3 nanosheets in terms of the apparent rate constant. The enhanced photoactivity of Ti3C2/WO3 nanohybrids was attributed to the fast electron transfer and associated efficient interfacial charge separation originated from the superior electronic conductivity of Ti3C2, in addition to the intimate interfacial contact and the Schottky junction formed between Ti3C2 and WO3. This study provides a feasible protocol for constructing low-dimensional heterojunctions containing a cost-effective cocatalyst applicable in solar-to-chemical energy conversion and beyond.
Title: Active site engineering on two dimensional layered transition metal dichalcogenides and their applications in photo electro chemical energy
Authors: Chueh An Chen a , Chiao Lin Lee a , Dung Sheng Tsai b ,,**, Chuan Pei Lee a,a,*
Affiliation: a Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan b Department of Electronic Engineering, Chung Yuan Christian University, Taoyuan City 32023, Taiwan
Abstract: Two dimensional layered transition metal dichalcogenides (2D layered TMDs) are a chemically diverse class of compounds having variable band gaps and remarkable electrochemical properties (i.e., electrocatalytic ability), which make them to be the potential materials for the applications in the field of photo electro chemical energy . To date, 2D layered TMDs have been wildly used in water splitting systems , dye sensitized solar cells , supercapacitors and photo catalysis systems etc., and the pertinent devices exhibit good performances. H owever, several reports also indicated that the active sites for catalytic reaction are mainly located on the edge site of 2D layered TMDs, and their basal plane shows poor active toward catalysis reaction. A ccordingly, many studies reported various approaches namely a ctive site engineering to address this issue , including the formation of defect sites (i.e., chalcogenide or metal vacancy ), heteroatom doping , na no sized TMD pieces (e.g., quantum dots (GDs)) GDs)), nano sized catal yst decoration, single atom layer ed design and highl y curv ed structures etc. In this article, we are going to provide a short review for the a ctive site engineering on two dimensional layered transition metal dichalcogenides and their applications in photo electro chemical energy Finally, the future perspectives for 2D layered TMD catalysts will also briefly discussed.