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X TECHEM: Sustainable Materials and Technologies
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X TECHEM: Sustainable Materials and Technologies

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

Deadline for manuscript submissions: closed (20 August 2023) | Viewed by 12353

Special Issue Editors

Prof. Dr. Teofil Jesionowski

E-Mail Website
Guest Editor
Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
Interests: biopolymers; synthesis, characterization, and applications of advanced functional materials; functional fillers and polymer composites; (bio)additives and eco-friendly fillers; biomineralization-inspired syntheses and extreme biomimetics; biocomposites and biomaterials; removal of wastewater pollutants via adsorption; photocatalysis or precipitation methods; pigment composites; enzyme immobilization
Special Issues, Collections and Topics in MDPI journals
Dr. Łukasz Klapiszewski

E-Mail Website
Guest Editor
Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
Interests: biopolymers; lignin chemistry; synthesis, characterization and applications of advanced functional materials; hybrid materials, biomaterials; polymer composites, biocomposites; chemical modification of synthetic and natural polymers; application of ligno-cellulosic materials in polymer chemistry; (bio)additives and eco-friendly fillers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We have the honor and pleasure of co-organizing the X Congress of Chemical Technology (X Kongres Technologii Chemicznej) in Wrocław, Poland, from May 11 to 14, 2022. In connection with this event, we would like to invite you to share the findings of your research in the Materials Special Issue entitled "X TECHEM: Sustainable Materials and Technologies".

We all contribute in the dynamic development of chemistry and biochemistry, from which new and innovative solutions are particularly significant. To meet the requirements of green chemistry and sustainable development, many interesting studies are carried out using advanced methods and technology.

As part of the Congress, as well as the scientific publications presented as part of this Special Issue, the following topics will be addressed:

  1. basic product technologies (refining of crude oil and its products, additives to fuels and oils, fertilizers, polymer materials and auxiliary additives, other large-volume processes);
  2. specialized product technologies (specialized products and plastics, engineering plastics and adjuvants, plant protection products and bactericidal products);
  3. technologies for the circular economy and climate protection (green chemistry, material/biomaterial technologies and corrosion, energy production and storage technologies, hybrid materials);
  4. biotechnologies (food industry, medical, pharmaceutical and cosmetic industry, agrobiotechnology).

We hope that the proposed Special Issue will offer a comprehensive and interesting overview of this exciting scientific field and be an important source of successful innovations in modern sustainability materials and technology.

Prof. Dr. Teofil Jesionowski
Dr. Łukasz Klapiszewski
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

  • chemistry and chemical technology
  • sustainable materials
  • specialized products
  • biotechnology
  • green chemistry

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Published Papers (5 papers)

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Research

18 pages, 2706 KiB  
Article
The Properties of Activated Carbons Functionalized with an Antibacterial Agent and a New SufA Protease Inhibitor
by Ewa Burchacka, Katarzyna Pstrowska, Michał Bryk, Filip Maciejowski, Marek Kułażyński and Katarzyna Chojnacka
Materials 2023, 16(3), 1263; https://doi.org/10.3390/ma16031263 - 1 Feb 2023
Cited by 2 | Viewed by 2581
Abstract
S. aureus is the cause of many diseases, including numerous infections of the skin. One way to help combat skin infections is to use bandages containing activated carbon. Currently, there are no dressings on the market that use the synergistic effect of activated [...] Read more.
S. aureus is the cause of many diseases, including numerous infections of the skin. One way to help combat skin infections is to use bandages containing activated carbon. Currently, there are no dressings on the market that use the synergistic effect of activated carbon and antibiotics. Thus, in this study, we point out the adsorption level of an antimicrobial substance on three different active carbons of different origins; by examining the inhibition level of the growth of S. aureus bacteria, we determined the number of live cells adsorbed on activated carbons depending on the presence of gentamicin in the solution. In addition, we designed and synthesized a new antibacterial substance with a new mechanism of action to act as a bacterial protease inhibitor, as well as determining the antibacterial properties conducted through adsorption. Our results demonstrate that activated carbons with adsorbed antibiotics show better bactericidal properties than activated carbon alone or the antibiotic itself. The use of properly modified activated carbons may have a beneficial effect on the development and functioning of new starting materials for bacteria elimination, e.g., in wound-healing treatments in the future. Full article
(This article belongs to the Special Issue X TECHEM: Sustainable Materials and Technologies)
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17 pages, 3866 KiB  
Article
Activation of Waste Materials with Carbon(IV) Oxide as an Effective Method of Obtaining Biochars of Attractive Sorption Properties towards Liquid and Gas Pollutants
by Aleksandra Bazan-Wozniak, Judyta Cielecka-Piontek, Agnieszka Nosal-Wiercińska and Robert Pietrzak
Materials 2022, 15(22), 8000; https://doi.org/10.3390/ma15228000 - 12 Nov 2022
Cited by 4 | Viewed by 1731
Abstract
Biochars that are the subjects of this report have been obtained from the residue of supercritical extraction of common nettle seeds with CO2. The residue was subjected to direct activation with carbon(IV) oxide as an activator. The obtained biochars were found [...] Read more.
Biochars that are the subjects of this report have been obtained from the residue of supercritical extraction of common nettle seeds with CO2. The residue was subjected to direct activation with carbon(IV) oxide as an activator. The obtained biochars were found to have a specific surface area inthe range of 888–1024 m2/g and a basic surface. They were used for the adsorption of a liquid organic pollutant (methylene blue) and a gas inorganic pollutant (NO2). As follows from the test results, the biochars were able to adsorb 150–239 mg of the dye. The Langmuir model was found to better describe the adsorption experimental data, while the kinetics of the process was better described by the pseudo-second-order model. From the thermodynamic analysis, it was inferred that the adsorption of methylene blue from a water solution was an endothermic and spontaneous reaction. It was established that elevated temperature of activation and the presence of air stream during adsorption had a positive impact on the adsorption of NO2 by the biochars studied. The greatest sorption capacity of the biochars towards NO2 was 59.1 mg/g. Full article
(This article belongs to the Special Issue X TECHEM: Sustainable Materials and Technologies)
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19 pages, 4481 KiB  
Article
Modification and Functionalization of Zeolites for Curcumin Uptake
by Ewelina Musielak, Agnieszka Feliczak-Guzik, Mietek Jaroniec and Izabela Nowak
Materials 2022, 15(18), 6316; https://doi.org/10.3390/ma15186316 - 12 Sep 2022
Cited by 5 | Viewed by 1984
Abstract
This work shows that hierarchical zeolites are promising systems for the delivery of biologically relevant hydrophobic substances, such as curcumin. The validity of using piperine as a promoter of curcumin adsorption was also evaluated. The use of pure curcumin is not medically applicable [...] Read more.
This work shows that hierarchical zeolites are promising systems for the delivery of biologically relevant hydrophobic substances, such as curcumin. The validity of using piperine as a promoter of curcumin adsorption was also evaluated. The use of pure curcumin is not medically applicable due to its low bioavailability and poor water solubility. To improve the undesirable properties of curcumin, special carriers are used to overcome these shortcomings. Hierarchical zeolites possessing secondary mesoporosity are used as pharmaceutical carrier systems for encapsulating active substances with low water solubility. This porosity facilitates access of larger reagent molecules to the active sites of the material, preserving desirable adsorption properties, acidity, and crystallinity of zeolites. In this work, methods are proposed to synthesize hierarchical zeolites based on a commercial FAU-type zeolite. Studies on the application and adsorption kinetics of curcumin using commercial FAU-type zeolite and hierarchical zeolites based on commercial FAU-type zeolite are also included. Full article
(This article belongs to the Special Issue X TECHEM: Sustainable Materials and Technologies)
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19 pages, 6032 KiB  
Article
Chromium(III) Removal from Nickel(II)-Containing Waste Solutions as a Pretreatment Step in a Hydrometallurgical Process
by Milena Kostrzewa, Katarzyna Staszak, Dobrochna Ginter-Kramarczyk, Izabela Kruszelnicka, Wojciech Góra, Marek Baraniak, Grzegorz Lota and Magdalena Regel-Rosocka
Materials 2022, 15(18), 6217; https://doi.org/10.3390/ma15186217 - 7 Sep 2022
Cited by 5 | Viewed by 2225
Abstract
This paper presents Cr(III) removal from nickel sulfate waste solutions as a pretreatment step for the modification of hydrogen storage alloys. Adsorption with two cation exchange resins, Dowex G26 (strongly acidic) and MAC-3 (weakly acidic), and precipitation with various solutions were chosen as [...] Read more.
This paper presents Cr(III) removal from nickel sulfate waste solutions as a pretreatment step for the modification of hydrogen storage alloys. Adsorption with two cation exchange resins, Dowex G26 (strongly acidic) and MAC-3 (weakly acidic), and precipitation with various solutions were chosen as simple operations for Cr(III) removal from waste solutions. The adsorption of Cr(III) was investigated for both model and real waste nickel solutions. Dowex G26 appeared to be more efficient in Cr(III) removal (RCr(III) from 43 to 80%) than MAC-3 (RCr(III) from 40 to 53%). However, the adsorption from multi-component solutions (presence of Co(II), Ni(II) and Cr(III)) showed no selectivity in Cr(III) adsorption in comparison to those of Co(II) and Ni(II). Cr(III), Ni(II) and Co(II) were removed at a comparable level (30–36%) from a three-component solution of 10 g/dm3 of each metal ion, and a 56–72% removal of these ions was achieved from the real solution. Therefore, the precipitation of Cr(III) was carried out from a real waste nickel solution to compare its performance with adsorption. The best precipitation solution appeared to be 3 and 30% NaOH due to the quantitative precipitation of Cr(OH)3 at pH 5 and relatively small co-precipitation of Ni(II) and Co(II) hydroxides (PCo(II) = 20–52%, PNi(II) = 0–54%). Based on the results of the research, it can be concluded that precipitation with a NaOH solution is an efficient pretreatment operation of an electrolyte for further steps of the hydrometallurgical process of nickel electrodeposition and appears to be more selective in the elimination of Cr(III) than adsorption with Dowex G26 resin. Full article
(This article belongs to the Special Issue X TECHEM: Sustainable Materials and Technologies)
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16 pages, 994 KiB  
Article
Adsorption of Organic Compounds on Adsorbents Obtained with the Use of Microwave Heating
by Aleksandra Bazan-Wozniak, Judyta Cielecka-Piontek, Agnieszka Nosal-Wiercińska and Robert Pietrzak
Materials 2022, 15(16), 5664; https://doi.org/10.3390/ma15165664 - 17 Aug 2022
Cited by 18 | Viewed by 2609
Abstract
Activated carbons were obtained by physical and chemical activation of the residue of supercritical extraction of green tea leaves. All the adsorbents obtained were characterized by: elemental analysis, low-temperature nitrogen adsorption, and the contents of acidic and basic oxygen functional groups on the [...] Read more.
Activated carbons were obtained by physical and chemical activation of the residue of supercritical extraction of green tea leaves. All the adsorbents obtained were characterized by: elemental analysis, low-temperature nitrogen adsorption, and the contents of acidic and basic oxygen functional groups on the surface of activated carbons by the Boehm method. The activated carbons were micro- or micro-mesoporous with well-developed surface area ranging from 520 to 1085 m2/g and total pore volume from 0.62 to 0.64 cm3/g. The physical activation of the precursor led to the strongly basic character of the surface. Chemical activation with 50% solution of H3PO4 of the residue of supercritical extraction of green tea leaves promoted the generation of acidic functional groups. All adsorbents were used for methylene blue and methyl red adsorption from the liquid phase. The influence of the activation method, pH of the dye solution, contact time of adsorbent with adsorbate, the temperature of adsorption, and rate of sample agitation on the effectiveness of organic dyes removal was evaluated and optimized. In the process of methylene blue adsorption on adsorbents, an increase in the sorption capacity was observed with increasing pH of the adsorbate, while in the process of methyl red adsorption, the relation was quite the reverse. The adsorption data were analyzed assuming the Langmuir or Freundlich isotherm models. The Langmuir model better described the experimental results, and the maximum sorption capacity calculated for this model varied from 144.93 to 250.00 mg/g. The results of the kinetic analysis showed that the adsorption of organic dyes on activated carbon was following the pseudo-second-order model. The negative values of the Gibbs free energy indicate the spontaneous character of the process. Full article
(This article belongs to the Special Issue X TECHEM: Sustainable Materials and Technologies)
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