Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
Adsorbents and Their Applications (Second Volume)
materials-logo
Submit to Special Issue Submit Abstract to Special Issue Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Adsorbents and Their Applications (Second Volume)

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

Deadline for manuscript submissions: 20 May 2024 | Viewed by 5235

Special Issue Editor

Dr. Agata Jakóbik-Kolon

E-Mail Website
Guest Editor
Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland
Interests: separation of elements; sorption; wastewater treatment; pectin-based biosorbent; ICP-AES and ICP MS analyses
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The continuous progress of civilization has spurred the development of various branches of industry. This has produced a variety different threats to the environment, including one of the biggest—the decline of clean water resources—which is also related to climate change. Fortunately, the growing awareness and sense of responsibility for the environment are imposing increasingly restrictive limits on pollutants in sewage and gases discharged into the environment. In general, zero liquid discharge or closed loop technologies are desirable. In the development of this type of technology, apart from membrane techniques, various types of sorbents are helpful. Every year, many articles on new sorbents are published, the most popular of which are biosorbents, due to their availability and low cost; various nanomaterials with high sorption capacities and good kinetics; and polymeric materials with specifically designed properties. The testing of these materials on real solutions is valuable because it allows the verification of the usefulness of the material in practice. Another important issue, unfortunately omitted in many tests, is the testing of sorbent desorption and regeneration and its disposal. These factors also determine the usability of the sorbent in real-world scenarios. The ideal sorbent should be cheap and highly selective and have good sorption capacity, chemical and mechanical resistance, and sorption kinetics. It should allow easy desorption and have a high adsorbate concentration factor, and the resulting by-product should be easy to manage. The number of sorption–desorption and regeneration cycles possible per portion of sorbent should be as high as possible.

The ideal sorbent does not yet exist. Research on new sorbents is therefore required and should aim to create sorbents that are close to the ideal as possible.

It is my pleasure to invite you to submit a manuscript for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Agata Jakóbik-Kolon
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. 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

  • sorption
  • desorption
  • biosorption
  • nanoparticles
  • wastewater purification
  • active coal

Related Special Issue

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

19 pages, 1823 KiB  
Article
Physicochemical and Adsorption Characterization of Char Derived from Resorcinol–Formaldehyde Resin Modified with Metal Oxide/Silica Nanocomposites
by Mariia Galaburda, Dariusz Sternik, Agnieszka Chrzanowska, Olena Oranska, Yurii Kovalov and Anna Derylo-Marczewska
Materials 2024, 17(9), 1981; https://doi.org/10.3390/ma17091981 - 24 Apr 2024
Viewed by 215
Abstract
A series of metal- and silica-containing carbon-based nanocomposites were synthesized by pyrolysis of a resorcinol–formaldehyde polymer modified with metal oxide/silica nanocomposites (MxOy/SiO2, where M = Mg, Mn, Ni, Cu and Zn) via the thermal oxidative destruction of metal acetates adsorbed on [...] Read more.
A series of metal- and silica-containing carbon-based nanocomposites were synthesized by pyrolysis of a resorcinol–formaldehyde polymer modified with metal oxide/silica nanocomposites (MxOy/SiO2, where M = Mg, Mn, Ni, Cu and Zn) via the thermal oxidative destruction of metal acetates adsorbed on highly dispersed silica (A380). The concentration of metals was 3.0 mmol/g SiO2. The phase composition and morphological, structural and textural properties of the carbon materials were analyzed by X-ray diffraction, SEM, Raman spectroscopy and low-temperature N2 adsorption. Thermal decomposition under a nitrogen atmosphere and in air was analyzed using TG–FTIR and TG–DTG–DSC techniques to determine the influence of the filler on the decomposition process. The synthesized composites show mesoporous structures with high porosity and narrow pore size distributions. It could be shown that the textural properties and the final composition of the nanocomposites depend on the metal oxide fillers of the precursors. The data obtained show that nickel and copper promote the degree of graphitization and a structural order with the highest porosity and largest specific surface area of the hybrid composites. The good adsorption properties of the obtained materials were shown for the recovery of p-chlorophenol and p-nitrophenol from aqueous solutions. Full article
(This article belongs to the Special Issue Adsorbents and Their Applications (Second Volume))
13 pages, 2398 KiB  
Article
The Selective Removal of Bisphenol A Using a Magnetic Adsorbent Fused with Bisphenol A-Binding Peptides
by Yue Xu, Yujie Wu, Bharat Bhargawa, Soon Ho Hong and Ik-Keun Yoo
Materials 2024, 17(7), 1651; https://doi.org/10.3390/ma17071651 - 03 Apr 2024
Viewed by 333
Abstract
The potential of bisphenol A (BPA)-binding peptides fused to magnetic beads is demonstrated as novel adsorbents that are reusable and highly selective for BPA removal from aqueous environments, in which various interfering substances coexist. Magnetic beads harboring peptides (peptide beads) showed a higher [...] Read more.
The potential of bisphenol A (BPA)-binding peptides fused to magnetic beads is demonstrated as novel adsorbents that are reusable and highly selective for BPA removal from aqueous environments, in which various interfering substances coexist. Magnetic beads harboring peptides (peptide beads) showed a higher BPA removal capacity (8.6 mg/g) than that of bare beads without peptides (2.0 mg/g). The BPA adsorption capacity of peptide beads increased with the number of peptides fused onto the beads, where monomeric, dimeric, or trimeric repeats of a BPA-binding peptide were fused to magnetic beads. The BPA-adsorbing beads were regenerated using a methanol–acetic acid mixture, and after six regeneration cycles, the adsorption capacity remained above 87% of its initial capacity. The selective removal of BPA was confirmed in the presence of BPA analogs with high structural similarity (bisphenol F and bisphenol S) or in synthetic wastewater. The present work is a pioneering study that investigates the selective affinity of peptides to remove specific organics with high selectivity from complex environmental matrices. Full article
(This article belongs to the Special Issue Adsorbents and Their Applications (Second Volume))
►▼ Show Figures

Graphical abstract

23 pages, 4947 KiB  
Article
Synthesis of a Magnetic Nanostructured Composite Sorbent Only from Waste Materials
by Alexander Bunge, Cristian Leoștean and Rodica Turcu
Materials 2023, 16(24), 7696; https://doi.org/10.3390/ma16247696 - 18 Dec 2023
Cited by 1 | Viewed by 787
Abstract
Water pollution is a big problem for the environment, and thus depollution, especially by adsorption processes, has garnered a lot of interest in research over the last decades. Since sorbents would be used in large quantities, ideally, they should be cheaply prepared in [...] Read more.
Water pollution is a big problem for the environment, and thus depollution, especially by adsorption processes, has garnered a lot of interest in research over the last decades. Since sorbents would be used in large quantities, ideally, they should be cheaply prepared in scalable reactions from waste materials or renewable sources and be reusable. Herein, we describe a novel preparation of a range of magnetic sorbents only from waste materials (sawdust and iron mud) and their performance in the adsorption of several dyes (methylene blue, crystal violet, fast green FCF, and congo red). The preparation is performed in a hydrothermal process and is thus easily scalable and requires little sophisticated equipment. The magnetic nanostructured materials were analyzed using FTIR, VSM, SEM/EDX, XRD, and XPS. For crystal violet as a pollutant, more in-depth adsorption studies were performed. It was found that the best-performing magnetic sorbent had a maximum sorption capacity of 97.9 mg/g for crystal violet (methylene blue: 149.8 mg/g, fast green FCF: 52.2 mg/g, congo red: 10.5 mg/g), could be reused several times without drastic changes in sorption behavior, and was easily separable from the solution by simply applying a magnet. It is thus envisioned to be used for depollution in industrial/environmental applications, especially for cationic dyes. Full article
(This article belongs to the Special Issue Adsorbents and Their Applications (Second Volume))
►▼ Show Figures

Figure 1

17 pages, 9088 KiB  
Article
Large-Scale and Highly Efficient Production of Ultrafine PVA Fibers by Electro-Centrifugal Spinning for NH3 Adsorption
by Youye Ma, Kanghui Cai, Guojie Xu, Yueling Xie, Peng Huang, Jun Zeng, Ziming Zhu, Jie Luo, Huawen Hu, Kai Zhao, Min Chen and Kun Zheng
Materials 2023, 16(7), 2903; https://doi.org/10.3390/ma16072903 - 06 Apr 2023
Cited by 1 | Viewed by 1397
Abstract
Ultrafine Polyvinyl alcohol (PVA) fibers have an outstanding potential in various applications, especially in absorbing fields. In this manuscript, an electrostatic-field-assisted centrifugal spinning system was designed to improve the production efficiency of ultrafine PVA fibers from PVA aqueous solution for NH3 adsorption. [...] Read more.
Ultrafine Polyvinyl alcohol (PVA) fibers have an outstanding potential in various applications, especially in absorbing fields. In this manuscript, an electrostatic-field-assisted centrifugal spinning system was designed to improve the production efficiency of ultrafine PVA fibers from PVA aqueous solution for NH3 adsorption. It was established that the fiber production efficiency using this self-designed system could be about 1000 times higher over traditional electrospinning system. The produced PVA fibers establish high morphology homogeneity. The impact of processing variables of the constructed spinning system including rotation speed, needle size, liquid feeding rate, and voltage on fiber morphology and diameter was systematically investigated by SEM studies. To acquire homogeneous ultrafine PVA fiber membranes, the orthogonal experiment was also conducted to optimize the spinning process parameters. The impact weight of different studied parameters on the spinning performance was thus provided. The experimental results showed that the morphology of micro/nano-fibers can be well controlled by adjusting the spinning process parameters. Ultrafine PVA fibers with the diameter of 2.55 μm were successfully obtained applying the parameters, including rotation speed (6500 rpm), needle size (0.51 mm), feeding rate (3000 mL h−1), and voltage (20 kV). Furthermore, the obtained ultrafine PVA fiber mat was demonstrated to be capable of selectively adsorbing NH3 gas relative to CO2, thus making it promising for NH3 storage and other environmental purification applications. Full article
(This article belongs to the Special Issue Adsorbents and Their Applications (Second Volume))
►▼ Show Figures

Figure 1

15 pages, 5984 KiB  
Article
Adsorption of Pyrethroids in Water by Calcined Shell Powder: Preparation, Characterization, and Mechanistic Analysis
by Xiaohan Ma, Siyuan Tao, Shiqian Fu, Huicheng Yang, Bangchu Lin, Yongjiang Lou and Yongyong Li
Materials 2023, 16(7), 2802; https://doi.org/10.3390/ma16072802 - 31 Mar 2023
Cited by 2 | Viewed by 1139
Abstract
Pyrethroids are common contaminants in water bodies. In this study, an efficient mussel shell-based adsorbent was prepared, the effects of factors (calcination temperature, calcination time, and sieved particle size) on the pyrethroid adsorption capacity from calcined shell powder were investigated via Box–Behnken design, [...] Read more.
Pyrethroids are common contaminants in water bodies. In this study, an efficient mussel shell-based adsorbent was prepared, the effects of factors (calcination temperature, calcination time, and sieved particle size) on the pyrethroid adsorption capacity from calcined shell powder were investigated via Box–Behnken design, and the prediction results of the model were verified. By characterizing (scanning electron microscopy, X-ray diffraction, Fourier infrared spectroscopy, and Brunauer–Emmett–Teller measurements) the adsorbent before and after the optimized preparation process, the results showed that calcined shell powder had a loose and porous structure, and the main component of the shell powder under optimized condition was calcium oxide. The adsorption mechanism was also investigated, and the analysis of adsorption data showed that the Langmuir, pseudo second-order, and intra-particle diffusion models were more suitable for describing the adsorption process. The adsorbent had good adsorption potential for pyrethroids, the adsorption capacity of the two pesticides was 1.05 and 1.79 mg/g, and the removal efficiency was over 40 and 70% at the maximum initial concentration, respectively. Full article
(This article belongs to the Special Issue Adsorbents and Their Applications (Second Volume))
►▼ Show Figures

Figure 1

Review

Jump to: Research

21 pages, 608 KiB  
Review
Removing Heavy Metals: Cutting-Edge Strategies and Advancements in Biosorption Technology
by Katarzyna Staszak and Magdalena Regel-Rosocka
Materials 2024, 17(5), 1155; https://doi.org/10.3390/ma17051155 - 01 Mar 2024
Viewed by 873
Abstract
This article explores recent advancements and innovative strategies in biosorption technology, with a particular focus on the removal of heavy metals, such as Cu(II), Pb(II), Cr(III), Cr(VI), Zn(II), and Ni(II), and a metalloid, As(V), from various sources. Detailed information on biosorbents, including their [...] Read more.
This article explores recent advancements and innovative strategies in biosorption technology, with a particular focus on the removal of heavy metals, such as Cu(II), Pb(II), Cr(III), Cr(VI), Zn(II), and Ni(II), and a metalloid, As(V), from various sources. Detailed information on biosorbents, including their composition, structure, and performance metrics in heavy metal sorption, is presented. Specific attention is given to the numerical values of the adsorption capacities for each metal, showcasing the efficacy of biosorbents in removing Cu (up to 96.4%), Pb (up to 95%), Cr (up to 99.9%), Zn (up to 99%), Ni (up to 93.8%), and As (up to 92.9%) from wastewater and industrial effluents. In addition, the issue of biosorbent deactivation and failure over time is highlighted as it is crucial for the successful implementation of adsorption in practical applications. Such phenomena as blockage by other cations or chemical decomposition are reported, and chemical, thermal, and microwave treatments are indicated as effective regeneration techniques. Ongoing research should focus on the development of more resilient biosorbent materials, optimizing regeneration techniques, and exploring innovative approaches to improve the long-term performance and sustainability of biosorption technologies. The analysis showed that biosorption emerges as a promising strategy for alleviating pollutants in wastewater and industrial effluents, offering a sustainable and environmentally friendly approach to addressing water pollution challenges. Full article
(This article belongs to the Special Issue Adsorbents and Their Applications (Second Volume))
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop