Feature Papers in Metal/Metal Oxide Nanoparticles

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 4146

Special Issue Editors


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Guest Editor
Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
Interests: flexible and stretchable sensor; printed sensor; DFTB; gas sensor; chemical sensor; wearable sensor; pressure sensor; electronic nose; electronic tongue; electronic skin; quantum based materials, quantum dots; semiconductor nanoparticles electrochemical sensors

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Guest Editor
Department Materials Engineering, Ming Chi University of Technology, Taipei, Taiwan
Interests: analytical chemistry; biomedical engineering; nanomaterials; cancer; biomarker detection; energy storage devices

Special Issue Information

Dear Colleagues,

Metal and metal oxide nanoparticles have unique optical, electronic and physicochemical properties as compared with bulk materials. They are universally interesting materials that potentially have a wide variety of advanced applications, such as biomedical applications, energy, solar cell, sensors, electronic devices, coating, catalysts, cosmetic, agricultural applications, fertilizer, antimicrobial agent, etc.

This Special Issue invites the submission of novel and high-quality research papers (experimental, theoretical, or simulation studies), as well as review articles. The scope of this Special Issue covers all aspects of cutting-edge research on metal and metal oxide nanoparticles, including the theoretical study of metal and metal oxide nanoparticles, synthesis of metal and metal oxide nanoparticles, fabrication techniques for the low-cost and high-quality metal and metal oxide nanoparticles, investigation of formation mechanism, and the state-of-the-art applications of metal and metal oxide nanoparticles.

The main topics include (but are not limited to):

-Theoretical approaches or simulations of new metal/metal oxide nanoparticles;

-The formation mechanism of metal/metal oxide nanoparticles by theoretical approaches or quantum chemical calculations, such as density-functional theory (DFT), density-functional-based tight binding (DFTB), MD simulation, etc.;

-Synthesis or new preparation methods of metal/metal oxide nanoparticles;

-Decoration of metal/metal oxide nanoparticles to various nanomaterials, such as carbon nanotube, 2D materials, graphene, Mxene, quantum dots, etc.;

-The state-of-the-art applications of metal/metal oxide nanoparticles such as environmental protection, safety, food, agriculture, healthcare, biomedical applications, optic, gas sensors, chemical sensors, energy, solar cell, electronic devices, coating, catalysts, cosmetic, fertilizer, antimicrobial, etc.;

-Synthesis and fabrication of bimetal oxide related composite and nanomaterials for electrochemical sensors and biosensors and related applications.

Dr. Chatchawal Wongchoosuk
Dr. Mani Govindasamy
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. Crystals 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 2100 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

  • metal oxide nanoparticles
  • metal nanoparticles
  • synthesis of metal oxide nanoparticles
  • synthesis of metal nanoparticles
  • applications of metal oxide nanoparticles
  • applications of metal nanoparticles
  • synthesis of bimetal oxide-based composites

Published Papers (2 papers)

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Research

16 pages, 10541 KiB  
Article
Recyclable Carbon-Based Hybrid Adsorbents Functionalized with Alumina Nanoparticles for Water Remediation
by Mohamed A. Habila, Zeid A. ALOthman, Hussam Musaad Hakami, Monerah R. ALOthman and Mohamed Sheikh
Crystals 2023, 13(4), 598; https://doi.org/10.3390/cryst13040598 - 1 Apr 2023
Cited by 3 | Viewed by 1369
Abstract
Developing and improving adsorbent materials for wastewater treatment have become crucial for achieving recyclable water and keeping the environment safe. Carbon materials are modified with alumina (Al2O3) using various doping ratios and a solvothermal treatment. The process aims to [...] Read more.
Developing and improving adsorbent materials for wastewater treatment have become crucial for achieving recyclable water and keeping the environment safe. Carbon materials are modified with alumina (Al2O3) using various doping ratios and a solvothermal treatment. The process aims to combine the advantages of stable carbon and alumina materials with an efficient adsorbent for methylene blue removal. Fabricated materials including carbon and carbon/alumina derivatives were characterized with TEM, SEM, EDS, XRD, and FTIR, revealing successful surface modifications. The carbon materials exhibited pore diameters between 23 and 39 µm, while the modified ones showed pore diameters between 1.68 and 6.08 µm. The alumina nanoparticles were formed on a carbon surface with a particle size between 174 nm and 179 nm. Fabricated adsorbents were applied for the removal of methylene blue by adsorption at pH 4. The equilibrium and steady state adsorption stage was achieved after 2 h of reporting fast adsorption behavior. Low ratio carbon doping with alumina improved the adsorption capacity for methylene blue removal, while the excessive doping of carbon materials with alumina led to a reduction in adsorption efficiency. The application of pseudo-first-order and pseudo-second-order kinetic models indicated a fast adsorption mechanism, which agreed with the second-order model. The adsorption capacity for methylene blue was found to be 234 mg/g. Adsorption-isotherms including the Langmuir and Freundlich models were applied to investigate the adsorption mechanism. The results indicate that the Langmuir model fits with the adsorption data, which suggests a monolayer adsorption process. Full article
(This article belongs to the Special Issue Feature Papers in Metal/Metal Oxide Nanoparticles)
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14 pages, 4476 KiB  
Article
Fe-Doped CuO/MWCNT as a Sensing Material for Electrochemical Detection of Nitrite
by Siraprapa Pitiphattharabun, Krittin Auewattanapun, Nicha Sato, Kasidit Janbooranapinij, Ratchatee Techapiesancharoenkij, Gasidit Panomsuwan, Jun Ohta and Oratai Jongprateep
Crystals 2022, 12(11), 1536; https://doi.org/10.3390/cryst12111536 - 28 Oct 2022
Cited by 3 | Viewed by 2010
Abstract
With unique electrical and catalytic properties, CuO has been ubiquitously employed in many applications including electrochemical sensors. Enhanced electrocatalytic performance of CuO can be achieved through doping. This work explored the potential of 3 mol% Fe-doped CuO/multi-walled carbon nanotube (MWCNT) composite for nitrite [...] Read more.
With unique electrical and catalytic properties, CuO has been ubiquitously employed in many applications including electrochemical sensors. Enhanced electrocatalytic performance of CuO can be achieved through doping. This work explored the potential of 3 mol% Fe-doped CuO/multi-walled carbon nanotube (MWCNT) composite for nitrite detection. The undoped CuO and 3 mol% Fe-doped CuO powders, prepared using a solution combustion technique, had average particle sizes lower than 100 nanometres. Particle refinement and enhancement of the specific surface area were observed in 3 mol% Fe-doped CuO. CuO/MWCNT and 3 mol% Fe-doped CuO/MWCNT composites, prepared using the hydrothermal impregnation technique, were tested for their electrocatalytic activities in the presence of nitrite. Cyclic voltammetry results revealed reduction reaction at an applied voltage of approximately −0.4 V. Superior peak currents were evident in the 3 mol% Fe-doped CuO/MWCNT composite. With acceptable sensitivity, limit of detection, selectivity, reusability, and recovery percentage, the 3 mol% Fe-doped CuO/MWCNT composite demonstrated potential capability in the detection of nitrite. Full article
(This article belongs to the Special Issue Feature Papers in Metal/Metal Oxide Nanoparticles)
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