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Nanomaterials
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Waste for Product Approach: The Role of the Nanomaterials in...
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Waste for Product Approach: The Role of the Nanomaterials in the Process

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: 30 January 2026 | Viewed by 1172

Special Issue Editor

Dr. Magdalena Luty-Błocho

E-Mail Website
Guest Editor
Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Al. A. Mickiewicza 30, 30-059 Krakow, Poland
Interests: microreactor system; nanoparticles; nanomaterials; clusters; metalorganic; complexes; kinetics; catalyst; metal determination; separation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, a big challenge is finding new metal resources or methods for their efficient recovery from waste solutions. In this collection, we propose the “Waste for Product” (W4P) approach as a vision for better and faster metals recovery and processing of metals directly from waste solutions (synthetic as well as industrial sample) to new products. In the W4P approach, it is necessary to take into account the wealth of products that we can produce, considering the various sources of waste solutions (mining, chemistry, pharmacy). As many types of waste solutions (specificity of their composition) as we have, we can obtain the same number of different product properties, even if the same metals are present in the waste solution. This, in turn, provides a great opportunity to create completely new materials with unique properties.

This issue presents a broad range of subjects in which nanomaterials are substrate, intermediate, or final products of the recovery process. The conducted research should also include information on the estimated costs/benefits resulting from the use of the W4P approach. Articles that include concept proof in the form of confirmation of synthesized product applications for selected areas (catalysis, chemistry, pharmacy, etc.), as well as commentary on the environmental impact of the proposed solution, are also welcome.

Dr. Magdalena Luty-Błocho
Guest Editor

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. Nanomaterials 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 2400 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

  • nanomaterials
  • catalyst
  • pharmaceutical waste
  • mining waste
  • metals recovery

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Published Papers (1 paper)

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Research

16 pages, 5125 KB  
Article
One-Step Synthesis of Ultra-Small RhNPs in the Microreactor System and Their Deposition on ACF for Catalytic Conversion of 4–Nitrophenol to 4–Aminophenol
by Adrianna Pach, Konrad Wojtaszek, Ahmed Ibrahim Elhadad, Tomasz Michałek, Anna Kula and Magdalena Luty-Błocho
Nanomaterials 2025, 15(17), 1375; https://doi.org/10.3390/nano15171375 - 5 Sep 2025
Viewed by 704
Abstract
The rising demand for platinum-group metals, driven by their essential applications in catalysis, energy storage, and chemical conversion, underscores the need to identify new sources for their recovery. Waste solutions originating from industrial processes offer a promising alternative source of noble metals. However, [...] Read more.
The rising demand for platinum-group metals, driven by their essential applications in catalysis, energy storage, and chemical conversion, underscores the need to identify new sources for their recovery. Waste solutions originating from industrial processes offer a promising alternative source of noble metals. However, due to their typically low concentrations, effective recovery requires a highly targeted approach. In this study, we present a synthetic waste solution containing trace amount of Rh(III) ions as both a medium for metal ion recovery and a direct precursor for catalyst synthesis. Using a bimodal water–ethanol solvent system, ultra-small rhodium nanoparticles were synthesized and subsequently immobilized onto activated carbon fibers (ACFs) within a microreactor system. The resulting Rh@ACF catalyst demonstrated high efficiency in the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP), serving as a model catalytic reaction. The Rh@ACF catalyst, containing 4.24 µg Rh per milligram of sample, exhibited notable catalytic activity, achieving 75% conversion of 4-NP to 4-AP within 1 h. Full conversion to 4-AP was also reached within 5 min, but requires extra NaBH4 addition to the catalytic mixture. Full article
(This article belongs to the Special Issue Waste for Product Approach: The Role of the Nanomaterials in the Process)
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