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Inorganics
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New Advances into Nanostructured Oxides, 2nd Edition
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New Advances into Nanostructured Oxides, 2nd Edition

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: 20 August 2024 | Viewed by 4092

Special Issue Editors

Dr. Roberto Nisticò

E-Mail Website
Guest Editor
Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy
Interests: biomaterials; catalysis; cement and concrete; ceramics; composites; coatings; copper; energy; iron oxides; magnetic materials; nanomaterials; photocatalysis; porous materials; sol-gel; surface functionalization; templating
Special Issues, Collections and Topics in MDPI journals
Dr. Silvia Mostoni

E-Mail Website
Guest Editor
Department of Materials Science, INSTM, University of Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy
Interests: catalysis; composites; elastomeric materials; inorganic chemistry; luminescence; metal oxides; nanocomposites; nanomaterials; photocatalysis; photoluminescence; polymeric materials; radioluminescence; sol-gel; surface functionalization; zinc oxide

Special Issue Information

Dear Colleagues,

The first edition of this Special Issue “New Advances into Nanostructured Oxides”, published in Inorganics in 2022, collected 13 interesting papers (i.e., 1 editorial, 9 articles, and 3 reviews), attracting many potential authors and readers with more than 14,000 views. Due to the large success of the first volume and the high interest on this topic, we decided to propose a second edition of this Special Issue, entitled “New Advances into Nanostructured Oxides II”, with the aim of continuing the discussion on this important class of inorganic materials.

In recent years, inorganic oxidic nanomaterials have been extensively investigated for their outstanding properties that allow their use within a large variety of raising fields of interest, ranging from (photo)catalysis to the development of functional nanocomposites. Nanoscopic metal (eventually mixed) oxides are often fabricated following soft-chemistry approaches (e.g., sol-gel processes), characterized by the possibility of favouring specific morphologies, particles dimensions, and surface porosities through different synthetic methods and templating processes. In this context, surface functionalities and reactivity play a major role in the determination of nanomaterials final properties. For this reason, further surface functionalization with specific chemical moieties is often recommended to extend their field of application. This Special Issue aims at extending the comprehension of the mechanisms involved in the synthesis and templating of inorganic oxidic nanomaterials, as well as in their surface functionalization and reactivity. Additionally, this Special Issue aims at increasing the knowledge on the latest advances of these systems in (photo)catalysis, environmental clean-up processes, energy storage, controlled transport and/or release, biomedicine, sensing, development of smart-materials, stimuli-responsive materials, and nanocomposites. Nanomaterials of interest include (but are not limited to): silica, alumina, titania, zirconia, zinc oxide, aluminosilicates (e.g., clays, zeolites), iron oxides, perovskites and titanates, rare earth oxides, composites. Furthermore, particular attention will be dedicated toward studies describing alternative ecofriendly preparation methods.

Therefore, we invite you to contribute with original, high-quality papers and review articles discussing significant achievements in the synthesis, characterization, structure-property relationship comprehension, and (recent) advanced applications involving inorganic oxidic nanomaterials.

Dr. Roberto Nisticò
Dr. Silvia Mostoni
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. Inorganics is an international peer-reviewed open access monthly 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 2700 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

  • adsorption
  • Advanced Oxidation Processes (AOPs)
  • aerogels
  • biomaterials
  • biomedicine
  • catalysis
  • controlled transport and/or release
  • drug-delivery systems
  • energy storage
  • environmental remediation
  • heterogeneous catalysis
  • inorganic chemistry
  • magnetic materials
  • membrane and separation technology
  • mesoporous materials
  • metal oxides
  • microporous materials
  • mixed-metal oxides
  • monoliths
  • nanocomposites
  • photocatalysis
  • sensing
  • smart materials
  • sol-gel
  • solid-state characterization
  • stimuli-responsive materials
  • surface functionalization
  • templating processes
  • wastewater treatments
  • zeolites

Published Papers (3 papers)

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Research

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15 pages, 6506 KiB  
Article
Significantly Enhanced Self-Cleaning Capability in Anatase TiO2 for the Bleaching of Organic Dyes and Glazes
by Tiangui Zhao, Tihao Cao, Qifu Bao, Weixia Dong, Ping Li, Xingyong Gu, Yunzi Liang and Jianer Zhou
Inorganics 2023, 11(8), 341; https://doi.org/10.3390/inorganics11080341 - 18 Aug 2023
Viewed by 858
Abstract
In this study, the Mg2+-doped anatase TiO2 phase was synthesized via the solvothermal method by changing the ratio of deionized water and absolute ethanol Vwater/Vethanol). This enhances the bleaching efficiency under visible light. The crystal structure, [...] Read more.
In this study, the Mg2+-doped anatase TiO2 phase was synthesized via the solvothermal method by changing the ratio of deionized water and absolute ethanol Vwater/Vethanol). This enhances the bleaching efficiency under visible light. The crystal structure, morphology, and photocatalytic properties of Mg-doped TiO2 were characterized by X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, N2 adsorption-desorption, UV-Vis spectroscopy analysis, etc. Results showed that the photocatalytic activity of the Mg2+-doped TiO2 sample was effectively improved, and the morphology, specific surface area, and porosity of TiO2 could be controlled by Vwater/Vethanol. Compared with the Mg-undoped TiO2 sample, Mg-doped TiO2 samples have higher photocatalytic properties due to pure anatase phase formation. The Mg-doped TiO2 sample was synthesized at Vwater/Vethanol of 12.5:2.5, which has the highest bleaching rate of 99.5% for the rhodamine B dye during 80 min under visible light. Adding Mg2+-doped TiO2 into the phase-separated glaze is an essential factor for enhancing the self-cleaning capability. The glaze samples fired at 1180 °C achieved a water contact angle of 5.623° at room temperature and had high stain resistance (the blot floats as a whole after meeting the water). Full article
(This article belongs to the Special Issue New Advances into Nanostructured Oxides, 2nd Edition)
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13 pages, 3957 KiB  
Article
Precipitative Coating of Calcium Phosphate on Microporous Silica–Titania Hybrid Particles in Simulated Body Fluid
by Reo Kimura, Kota Shiba, Kanata Fujiwara, Yanni Zhou, Iori Yamada and Motohiro Tagaya
Inorganics 2023, 11(6), 235; https://doi.org/10.3390/inorganics11060235 - 28 May 2023
Cited by 1 | Viewed by 1146
Abstract
Titania and silica have been recognized as potential drug delivery system (DDS) carriers. For this application, controllable biocompatibility and the suppression of the initial burst are required, which can be provided by a calcium phosphate (CP) coating. However, it is difficult to control [...] Read more.
Titania and silica have been recognized as potential drug delivery system (DDS) carriers. For this application, controllable biocompatibility and the suppression of the initial burst are required, which can be provided by a calcium phosphate (CP) coating. However, it is difficult to control the morphology of a CP coating on the surface of carrier particles owing to the homogeneous nucleation of CP. In this study, we report the development of a CP-coating method that homogeneously corresponds to the shapes of silica–titania (SiTi) porous nanoparticles. We also demonstrate that controlled surface roughness of CP coatings could be achieved in SBF using SiTi nanoparticles with a well-defined spherical shape, a uniform size, and a tunable nanoporous structure. The precipitation of CP was performed on mono-dispersed porous SiTi nanoparticles with different Si/Ti molar ratios and pore sizes. The pore size distribution was found to significantly affect the CP coating in SBF immersion; the surfaces of the nanoparticles with bimodal pore sizes of 0.7 and 1.1–1.2 nm became rough after CP precipitation, while those with a unimodal pore size of 0.7 nm remained smooth, indicating that these two pore sizes serve as different nucleation sites that lead to different surface morphologies. Full article
(This article belongs to the Special Issue New Advances into Nanostructured Oxides, 2nd Edition)
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Review

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35 pages, 21805 KiB  
Review
Morphological Dependence of Metal Oxide Photocatalysts for Dye Degradation
by Ahmed H. Naggar, Abdelaal S. A. Ahmed, Tarek A. Seaf El-Nasr, N. F. Alotaibi, Kwok Feng Chong and Gomaa A. M. Ali
Inorganics 2023, 11(12), 484; https://doi.org/10.3390/inorganics11120484 - 18 Dec 2023
Viewed by 1668
Abstract
There is no doubt that organic dyes currently play an indispensable role in our daily life; they are used in products such as furniture, textiles, and leather accessories. However, the main problems related to the widespread use of these dyes are their toxicity [...] Read more.
There is no doubt that organic dyes currently play an indispensable role in our daily life; they are used in products such as furniture, textiles, and leather accessories. However, the main problems related to the widespread use of these dyes are their toxicity and non-biodegradable nature, which mainly are responsible for various environmental risks and threaten human life. Therefore, the elimination of these toxic materials from aqueous media is highly recommended to save freshwater resources, as well as our health and environment. Heterogeneous photocatalysis is a potential technique for dye degradation, in which a photocatalyst is used to absorb light (UV or visible) and produce electron–hole pairs that enable the reaction participants to undergo chemical changes. In the past, various metal oxides have been successfully applied as promising photocatalysts for the degradation of dyes and various organic pollutants due to their wide bandgap, optical, and electronic properties, in addition to their low cost, high abundance, and chemical stability in aqueous solutions. Various parameters play critical roles in the total performance of the photocatalyst during the photocatalytic degradation of dyes, including morphology, which is a critical factor in the overall degradation process. In our article, the recent progress on the morphological dependence of photocatalysts will be reviewed. Full article
(This article belongs to the Special Issue New Advances into Nanostructured Oxides, 2nd Edition)
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