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Nanomaterials
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Advanced Porous Nanomaterials for Adsorption
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Advanced Porous Nanomaterials for Adsorption

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 4463

Special Issue Editors

Dr. Song Li

E-Mail Website
Guest Editor
Department of New Energy Science and Engineering, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: adsorption-driven energy conversion and storage; metal–organic frameworks; molecular simulation; computational screening of nanoporous materials
Dr. Juyeong Kim

E-Mail Website
Guest Editor
Department of Chemistry, Gyeongsang National University, Jinju, Republic of Korea
Interests: hybrid nanomaterials; metal–organic frameworks; plasmonic nanostructures; ammonia adsorption and utilization

Special Issue Information

Dear Colleagues, 

The adsorption of guest molecules on the solid surface of porous materials is a natural phenomenon that has been utilized in the fields of environmental treatment, energy conversion and biomedical applications. The structural properties of porous materials, including pore size, surface area and surface affinity, play critical roles in determining their performance in water treatment, air purification, chemical separation, toxic substance removal, adsorption desalination, adsorption cooling and biomolecules interactions. In recent decades, the emergence of advanced porous materials with ultrahigh surface area and tunable surface affinity, such as metal–organic frameworks (MOFs), covalent organic frameworks (COFs), novel synthesized zeolites and porous carbon, has enabled a remarkable improvement in adsorption capacity, which favors an enhancement in the efficiency of porous materials in environmental treatment, energy conversion and biomedical applications.   

Significant efforts have been devoted to the development of experimental and theoretical approaches to identify top-performing porous materials and their composites for industrial application. In addition, the exploration of the underlying adsorption mechanism of novel nanoporous materials is key to the design and development of high-performing porous materials. 

This Special Issue is open to contributions from all aspects of advanced porous materials for adsorption in environment, energy and biomedical applications. Original research papers, reviews, technical reports and perspectives are welcome for submission. Hybrid approaches in the papers, including different experimental and computational approaches, are particularly welcome.  

Topics covered in this Special Issue include, but are not limited to, the following:

  • The computational screening of porous materials for adsorption;
  • The design and/or synthesis of novel porous materials or composites;
  • The adsorption kinetics of advanced porous materials;
  • The modeling and measurement of adsorption desalination/cooling systems;
  • The adsorption mechanism of novel porous materials;
  • The adsorption performance of porous materials in environment-related areas;
  • The application of advanced porous materials in biomedical areas;
  • The fundamentals of the adsorption behaviors of biomolecules.

Dr. Song Li
Dr. Juyeong Kim
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. 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 2900 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

  • nanoporous materials, adsorption
  • adsorption mechanism
  • metal-organic frameworks
  • covalent organic frameworks
  • zeolites
  • porous carbon
  • energy conversion
  • environment pollution
  • biomedical application

Published Papers (4 papers)

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Research

14 pages, 1878 KiB  
Article
A Novel Nanoporous Adsorbent for Pesticides Obtained from Biogenic Calcium Carbonate Derived from Waste Crab Shells
by Fran Nekvapil, Adina Stegarescu, Ildiko Lung, Razvan Hirian, Dragoș Cosma, Erika Levei and Maria-Loredana Soran
Nanomaterials 2023, 13(23), 3042; https://doi.org/10.3390/nano13233042 - 28 Nov 2023
Viewed by 791
Abstract
A novel nanoporous adsorbent was obtained through the thermal treatment and chemical wash of the wasted crab shells (BC1) and characterized by various techniques. The structure of BC1 at the end of the treatments comprised a mixture of calcite and amorphous CaCO3 [...] Read more.
A novel nanoporous adsorbent was obtained through the thermal treatment and chemical wash of the wasted crab shells (BC1) and characterized by various techniques. The structure of BC1 at the end of the treatments comprised a mixture of calcite and amorphous CaCO3, as evidenced by X-ray diffraction and Fourier transform infrared absorption. The BET surface area, BET pore volume, and pore diameter were 250.33 m2 g−1, 0.4 cm3 g−1, and <70 nm, respectively. The point of zero charge of BC1 was determined to be around pH 9. The prepared adsorbent was tested for its adsorption efficacy towards the neonicotinoid pesticide acetamiprid. The influence of pH (2–10), temperature (20–45 °C), adsorbent dose (0.2–1.2 g L−1), contact time (5–60 min), and initial pesticide concentration (10–60 mg L−1) on the adsorption process of acetamiprid on BC1 was studied. The adsorption capacity of BC1 was 17.8 mg g−1 under optimum conditions (i.e., 20 mg L−1 initial acetamiprid concentration, pH 8, 1 g L−1 adsorbent dose, 25 °C, and 15 min contact time). The equilibrium data obtained from the adsorption experiment fitted well with the Langmuir isotherm model. We developed an effective nanoporous adsorbent for the recycling of crab shells which can be applied on site with minimal laboratory infrastructure according to local needs. Full article
(This article belongs to the Special Issue Advanced Porous Nanomaterials for Adsorption)
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18 pages, 4874 KiB  
Article
Fabrication of Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization
by Ahmed Mohamed El-Toni, Mohamed A. Habila, Mohamed Sheikh, Mohamed El-Mahrouky, Abdulrhman S. Al-Awadi, Joselito P. Labis and Zeid A. ALOthman
Nanomaterials 2023, 13(18), 2548; https://doi.org/10.3390/nano13182548 - 12 Sep 2023
Cited by 1 | Viewed by 914
Abstract
Herein, Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 double shell nanoparticles were prepared by first (R1) and second (R2) routes and applied for the removal of methylene blue. The reported adsorption capacities for [...] Read more.
Herein, Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 double shell nanoparticles were prepared by first (R1) and second (R2) routes and applied for the removal of methylene blue. The reported adsorption capacities for R1-0.2, R1-0.4 and R2 samples were 128, 118 and 133 mg.g−1, respectively, which were obtained after 80 min as equilibrium contact time, and pH of 6 using a methylene blue concentration of 200 ppm. The adsorption of methylene blue using the prepared Fe3O4 core-meso SiO2/TiO2 double shell was analyzed by kinetic and isotherms models. In addition, thermodynamic investigations were applied to assess the spontaneous nature of the process. The obtained results confirmed that the pseudo-second order model is well fitted with the adsorption data and the Freundlich-isotherm assumption suggested a multilayer adsorption mechanism. In addition, results of the thermodynamic investigation indicated that ΔG° was in the range of −2.3 to −6.8 kJ/mol for R1-0.2, −2.8 to −6.3 kJ/mol for R1-0.4 and −2.0 to −5.2 kJ/mol for R2. In addition, the ΔH° and ΔS° values were found in the range of 26.4 to 36.19 kJ.mol−1 and 94.9 to 126.3 Jmol−1 K−1, respectively. These results confirm that the surfaces of Fe3O4 core-mesoSiO2/TiO2 and Fe3O4 core-TiO2/mesoSiO2 double shell exhibit a spontaneous tendency to adsorb methylene blue from the aqueous solutions. The achieved performance of Fe3O4 core-meso SiO2/TiO2 and Fe3O4 core-TiO2/meso SiO2 double shell as adsorbent for methylene blue removal will encourage future research investigations on the removal of a broad range of contaminants from wastewater. Full article
(This article belongs to the Special Issue Advanced Porous Nanomaterials for Adsorption)
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12 pages, 7060 KiB  
Article
Solid-State Structural Transformation in Zn(II) Metal–Organic Frameworks in a Single-Crystal-to-Single-Crystal Fashion
by Jaewook An, Jihye Oh, Uma Kurakula, Dong Hee Lee, Aditya Choudhury, Eunji Lee, Raghavender Medishetty and In-Hyeok Park
Nanomaterials 2023, 13(16), 2319; https://doi.org/10.3390/nano13162319 - 12 Aug 2023
Viewed by 907
Abstract
Solid-state structural transformation is an interesting methodology used to prepare various metal–organic frameworks (MOFs) that are challenging to prepare in direct synthetic procedures. On the other hand, solid-state [2 + 2] photoreactions are distinctive methodologies used for light-driven solid-state transformations. Meanwhile, most of [...] Read more.
Solid-state structural transformation is an interesting methodology used to prepare various metal–organic frameworks (MOFs) that are challenging to prepare in direct synthetic procedures. On the other hand, solid-state [2 + 2] photoreactions are distinctive methodologies used for light-driven solid-state transformations. Meanwhile, most of these photoreactions explored are quantitative in nature, in addition to them being stereo-selective and regio-specific in manner. In this work, we successfully synthesized two photoreactive novel binuclear Zn(II) MOFs, [Zn2(spy)2(tdc)2] (1) and [Zn2(spy)4(tdc)2] (2) (where spy = 4-styrylpyridine and tdc = 2,5-thiophenedicarboxylate) with different secondary building units. Both MOFs are interdigitated in nature and are 2D and 1D frameworks, respectively. Both the compounds showed 100% and 50% photoreaction upon UV irradiation, as estimated from the structural analysis for 1 and 2, respectively. This light-driven transformation resulted in the formation of 3D, [Zn2(rctt-ppcb)(tdc)2] (3), and 2D, [Zn2(spy)2(rctt-ppcb)(tdc)2] (4) (where rctt = regio, cis, trans, trans; ppcb = 1,3-bis(4′-pyridyl)-2,4-bis(phenyl)cyclobutane), respectively. These solid-state structural transformations were observed as an interesting post-synthetic modification. Overall, we successfully transformed novel lower-dimensional frameworks into higher-dimensional materials using a solid-state [2 + 2] photocycloaddition reaction. Full article
(This article belongs to the Special Issue Advanced Porous Nanomaterials for Adsorption)
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12 pages, 4721 KiB  
Article
Enhanced Water Adsorption of MIL-101(Cr) by Metal-Organic Polyhedral Encapsulation for Adsorption Cooling
by Xiaoxiao Xia, Boyun Liu, Bo Zhao, Zichao Xia and Song Li
Nanomaterials 2023, 13(7), 1147; https://doi.org/10.3390/nano13071147 - 23 Mar 2023
Cited by 1 | Viewed by 1272
Abstract
Metal-organic frameworks (MOFs) are one of the most promising adsorbents in the adsorption cooling system (ACS) for their outstanding water adsorption performance. Notwithstanding that fact, numerous reports pay more attention to the ACS performance improvement through enhancing equilibrium water uptake of MOFs. However, [...] Read more.
Metal-organic frameworks (MOFs) are one of the most promising adsorbents in the adsorption cooling system (ACS) for their outstanding water adsorption performance. Notwithstanding that fact, numerous reports pay more attention to the ACS performance improvement through enhancing equilibrium water uptake of MOFs. However, adsorption cooling performance, including specific cooling power (SCP) and coefficient of performance for cooling (COPC) of MOF/water working pairs, always depends on the water adsorption kinetics of MOFs in ACS. In this work, to increase the water adsorption rate, the preparation of MOP/MIL-101(Cr) was achieved by encapsulating hydrophilic metal-organic polyhedral (MOP) into MIL-101(Cr). It was found that the hydrophilicity of MOP/MIL-101(Cr) was enhanced upon hydrophilic MOP3 encapsulation, resulting in a remarkable improvement in water adsorption rates. Furthermore, both SCP and COPC for MOP/MIL-101(Cr)-water working pairs were also improved because of the fast water adsorption of MOP/MIL-101(Cr). In brief, an effective approach to enhance the water adsorption rate and cooling performance of MOF-water working pairs through enhancing the hydrophilicity of MOFs by encapsulating MOP into MOFs was reported in this work, which provides a new strategy for broadening the application of MOF composites in ACS. Full article
(This article belongs to the Special Issue Advanced Porous Nanomaterials for Adsorption)
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