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Functional Porous Materials Derived from Natural or Waste Resources
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Functional Porous Materials Derived from Natural or Waste Resources

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Porous Materials".

Deadline for manuscript submissions: closed (20 February 2022) | Viewed by 6350

Special Issue Editors

Dr. José Miguel Hidalgo Herrador

E-Mail Website1 Website2
Guest Editor
ORLEN UniCRE a.s., Záluží 1, 436 70 Litvínov, Czech Republic
Interests: heterogeneous catalysis; porous catalysts; biofuels; fossil fuels; petroleum; vacuum residue; hydroisomerisation of C5-C6 fraction; hydrocracking; hydrotreating; oxidation; reduction
Special Issues, Collections and Topics in MDPI journals
Dr. Héctor de Paz Carmona

E-Mail Website1 Website2
Guest Editor
ORLEN UniCRE a.s., Záluží 1, 436 70 Litvínov, Czech Republic
Interests: co-processing; deoxygenation; hydrotreating; middle distillates; biofuels; Heterogeneous catalysis; catalysts; renewable energy; catalyst deactivation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Porous materials are being used for many purposes such as adsorbents, catalysts, batteries, thermal insulators, light materials, ceramics, etc. However, many of them are made of non-environmentally-friendly compounds which are damaging the environment because of their fabrication and use, or at the end of their usability. Thus, the synthesis of porous materials derived from wastes or natural resources (and therefore biodegradable products after their usability) is a positive route to obtain non-contaminant new products. At present, many researchers and industries are working in the production of environmentally friendly compounds or products that will have a lower environmental impact compared to the original ones. The aim of this Special Issue is to enable the production and use of more environmentally friendly porous solids made of natural and/or waste raw materials which could have a great impact on society.

Potential topics include, but are not limited to, research or review works on:

  • Porous catalysts;
  • Novel porous materials with innovative uses;
  • Adsorbents;
  • Insulators;
  • Batteries;
  • Nano-porous materials;
  • Membranes;
  • Future perspectives for porous materials.

Dr. José Miguel Hidalgo Herrador
Dr. Héctor de Paz Carmona
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 submissions that pass pre-check are 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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • porous materials
  • catalysts
  • adsorbents
  • membranes
  • wastes
  • renewable
  • natural resources

Published Papers (3 papers)

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Research

13 pages, 3229 KiB  
Article
Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts
by José Miguel Hidalgo Herrador, Martyna Murat, Zdeněk Tišler, Jakub Frątczak and Héctor de Paz Carmona
Materials 2022, 15(3), 844; https://doi.org/10.3390/ma15030844 - 22 Jan 2022
Cited by 1 | Viewed by 2061
Abstract
The polyolefin to lighter molecules reaction reduces the waste-plastic residues to produce fuels and valuable chemicals. Commercial MgO light and CaO were used as catalysts for the direct polyethylene and polypropylene liquefaction in N2 or CO2 atmospheres. The products were analyzed [...] Read more.
The polyolefin to lighter molecules reaction reduces the waste-plastic residues to produce fuels and valuable chemicals. Commercial MgO light and CaO were used as catalysts for the direct polyethylene and polypropylene liquefaction in N2 or CO2 atmospheres. The products were analyzed (ATR-FTIR, GC-FID/TCD, GC-FID, density, refractive index). The use of MgO light and CaO improved the conversion of propylene and ethylene to liquid products. In addition, low gaseous and solid products yields were obtained. A good production of organic liquids in the gasoline, diesel and kerosene boiling range was obtained. The use of CO2, in some cases, led to a higher conversion into liquids compared with the reactions performed in the N2 atmosphere. In addition, the use of the CO2 atmosphere led to a higher content of products with a boiling range in the diesel and kerosene ranges. Full article
(This article belongs to the Special Issue Functional Porous Materials Derived from Natural or Waste Resources)
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13 pages, 2616 KiB  
Article
Phonolite Material as Catalyst Support for the Hydrotreatment of Gas Oil and Vegetable Oil Type Feedstocks
by Héctor de Paz Carmona, Jakub Frątczak, Zdeněk Tišler and José Miguel Hidalgo Herrador
Materials 2022, 15(1), 386; https://doi.org/10.3390/ma15010386 - 05 Jan 2022
Cited by 1 | Viewed by 1935
Abstract
Phonolite material has shown to be promising catalyst support for the deoxygenation of triglycerides. In this work, we continue with our previous research by synthesising and testing three acid-treated phonolite-supported Co-Mo, Ni-Mo and Ni-W catalysts for the hydrotreating of atmospheric gas oil and [...] Read more.
Phonolite material has shown to be promising catalyst support for the deoxygenation of triglycerides. In this work, we continue with our previous research by synthesising and testing three acid-treated phonolite-supported Co-Mo, Ni-Mo and Ni-W catalysts for the hydrotreating of atmospheric gas oil and co-processing with rapeseed oil at industrial operating conditions (350–370 °C, WHSV 1–2 h−1, 5.5 MPa) in the continuous regime for more than 270 h. The phonolite-supported catalysts showed hydrotreating activity comparable with commercial catalysts, together with a complete conversion of triglycerides into n-alkanes. During co-processing, the Ni-promoted catalyst showed strong stability, with similar activity previous to the rapeseed oil addition. Our results enable us to evaluate the suitability of phonolite as catalyst support for the development of plausible alternatives to conventional hydrotreating catalysts for the co-processing of middle distillates with vegetable oils. Full article
(This article belongs to the Special Issue Functional Porous Materials Derived from Natural or Waste Resources)
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13 pages, 1487 KiB  
Article
Mesoporous Silica Derived from Municipal Solid Waste Incinerator (MSWI) Ash Slag: Synthesis, Characterization and Use as Supports for Au(III) Recovery
by Yosep Han, Seongsoo Han, Seongmin Kim, Minuk Jung, Ho-Seok Jeon, Siyoung Q. Choi, KyuHan Kim and Youngjae Kim
Materials 2021, 14(22), 6894; https://doi.org/10.3390/ma14226894 - 15 Nov 2021
Cited by 5 | Viewed by 1540
Abstract
In this study, the effect of NaOH on the synthesis of mesoporous silica (MS) by using municipal solid-waste incinerator (MSWI) ash slag was investigated. Moreover, the prepared MS was used as a support to evaluate its potential for the recovery of gold ions [...] Read more.
In this study, the effect of NaOH on the synthesis of mesoporous silica (MS) by using municipal solid-waste incinerator (MSWI) ash slag was investigated. Moreover, the prepared MS was used as a support to evaluate its potential for the recovery of gold ions (Au(III)) from aqueous solution. The extraction process for the MSWI ash slag activated through mechanical grinding entailed alkali treatment, using varying concentrations of NaOH. The content of Si extracted from MSWI ash slag increased with the increasing grinding time and NaOH concentration. As the NaOH concentration increased, the pore structure (e.g., Brunauer–Emmett–Teller (BET) surface area and pore volume) of the synthesized MS improved. In addition, the amount of adsorbed Au(III) increased with increasing sulfur content immobilized on the support, and the sulfur content was in turn governed by the silanol content of the MS support. The adsorbent prepared by using the MS-3M support exhibited the highest Au(III) adsorption capacity (110.3 mg/g), and its adsorption–desorption efficiency was not significantly affected even after five adsorption–desorption cycles. Full article
(This article belongs to the Special Issue Functional Porous Materials Derived from Natural or Waste Resources)
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