Article
Chemistry, Physical
Lawrence Sawunyama, Opeyemi A. Oyewo, Naledi Seheri, Sylvanus A. Onjefu, Damian C. Onwudiwe
Summary: The use of ceramic membranes functionalized with metal oxide for pollutant removal has rapidly advanced, particularly in wastewater treatment. This hybrid approach improves filtering effectiveness, material recoverability, antifouling ability, and long-term performance compared to conventional photocatalyst and ceramic membranes. Key properties such as mechanical strength, chemical resistance, non-toxicity, and cost-effectiveness have contributed to their expanding usage in water treatment. This review focuses on techniques for fabricating metal oxide functionalized ceramic membranes, addressing limitations, advantages, approaches to overcome limitations, semiconductor influence on material performance, recent advancements, and the removal of pharmaceuticals in wastewater.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
M. Okawa, D. Takegami, D. S. Christovam, M. Ferreira-Carvalho, C. -Y. Kuo, C. T. Chen, T. Miyoshino, K. Takasu, T. Okuda, C. F. Chang, L. H. Tjeng, T. Mizokawa
Summary: The research investigates the differences in the titanium 3d orbitals between corundum-type Ti2O3 and ilmenite-type MgTiO3 using linear dichroism of soft x-ray absorption spectroscopy. The study confirms the presence of the Ti-Ti bond and the change in symmetry of the 3d orbitals under hole doping.
Article
Chemistry, Multidisciplinary
Junhao Ma, Yanyan Li, Jichun Li, Xuanyu Yang, Yuan Ren, Abdulaziz A. Alghamdi, Guoxin Song, Kaiping Yuan, Yonghui Deng
Summary: A polymer-mediated co-assembly method was proposed for the construction of highly connected mesoporous structures and the simultaneous loading of noble metal nanoparticles in TMOs/NM nanocomposites. The materials showed high sensitivity and selectivity in gas sensing performance, with the sensors integrated into a wireless module connected to smartphones for real-time detection of specific biomarkers.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
James Egbu, Paul R. Ohodnicki Jr, John P. Baltrus, Ahmed Talaat, Ruishu F. Wright, Michael E. McHenry
Summary: We conducted a systematic investigation on newly developed metal amorphous nanocomposites (MANCs) and studied the factors affecting their surface roughness. The analysis showed that heat treatment increased the surface roughness and thickness of the oxide layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
T. Miyoshino, D. Takegami, A. Melendez-Sans, R. Nakamura, M. Yoshimura, K. -d. Tsuei, K. Takasu, T. Okuda, L. H. Tjeng, T. Mizokawa
Summary: We have investigated the Ti3+/Ti4+ mixed valence state in Mg-doped Ti2O3 using hard x-ray photoemission spectroscopy. The Ti 2p spectrum of corundum-type Ti2O3 indicates the presence of Ti3+ configuration with strong electronic coupling in the c-axis Ti-Ti pairs, while the data for ilmenite-type MgTiO3 confirms the Mg2+-Ti4+ charge state in the c-axis cation pairs. In Mg0.29Ti1.71O3, the Ti 2p spectrum hardly shows the Ti4+ peak, indicating the c-axis pairing of Mg with Ti3+ instead of Ti4+ and the realization of Ti3+/Ti4+ mixed valence state within the Ti-Ti c-axis pairs. In Mg0.63Ti1.37O3, the presence of Mg2+-Ti4+ pairs is detected. The results highlight the significance of hybridization within the c-axis pairs not only in the Ti3+-Ti3+ configuration, but also in the Ti3+/Ti4+ mixed valence state, surpassing the Madelung energy gain of Mg2+-Ti4+ c-axis pair formation.
Article
Chemistry, Multidisciplinary
Irum Shaheen, Khuram Shahzad Ahmad, Camila Zequine, Ram K. Gupta, Andrew G. Thomas, Anjum Qureshi, Mohammad Azad Malik, Javed H. Niazi
Summary: A facile nanocomposite of Pd/NiOPdO was synthesized using foliar phyto eco-friendly agents and showed enhanced electrochemical properties for supercapacitor application, with a specific capacitance of 88 F g(-1) and low internal resistance of 0.8 omega. The nanocomposite exhibited a mixed phase of rhombohedral NiO and tetragonal PdO.
Article
Engineering, Environmental
Rocio Sanchez-Albores, Francisco J. Cano, P. J. Sebastian, Odin Reyes-Vallejo
Summary: ZnO-GO particles were successfully biosynthesized for photocatalytic degradation of dye. Phytochemicals in orange peel extract promoted impregnation of organic compounds, forming graphene oxide during annealing. Reducing zinc source and increasing annealing temperature improved structural and photocatalytic properties.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Ankush Agrawal, Ankita Sharma, Kumud Kant Awasthi, Anjali Awasthi
Summary: One of the major challenges today is the treatment of polluted wastewater, and membrane technology has been widely used due to its high removal power, selectivity, and permeability. Traditional wastewater treatment methods are costly, and the use of metal oxide nanomaterials in polymer nanocomposite membranes may offer a more effective solution.
MATERIALS TODAY CHEMISTRY
(2021)
Review
Chemistry, Physical
Rui Wang, Changhua Wang, Yanmei Xing, Xintong Zhang
Summary: Rational design of the surface of photocatalysts can effectively enhance the efficiency of photocatalysis by modulating charge separation and surface reaction kinetics. Solution plasma, as an emerging technology for surface engineering, provides a promising method for modifying the surface structure of high-performance photocatalysts. This review introduces the fundamentals of solution plasma, its applications in materials preparation, and summarizes the recent research progress in surface design of advanced photocatalysts. Possible new directions for future research are also discussed.
Review
Chemistry, Analytical
Long Chen, Qiwen Yu, Chenying Pan, Yanhua Song, Hao Dong, Xiaoya Xie, Yi Li, Jun Liu, Di Wang, Xing Chen
Summary: Semiconductor metal oxide (SMO) gas sensors have gained significant attention due to their high sensitivity, fast response time, and excellent selectivity. Nanomaterials (NMs) synthesized by electrospinning offer unique advantages for designing highly sensitive and selective gas sensors. Studies have shown that NMs with different shapes and compositions exhibit high response values, long-term stability, low humidity dependence, fast response/recovery times, and low detection limits for gases.
Review
Environmental Sciences
Sapna Yadav, Kriti Shakya, Aarushi Gupta, Divya Singh, Anjana R. Chandran, Anjali Varayil Aanappalli, Kanika Goyal, Nutan Rani, Kalawati Saini
Summary: In the field of wastewater treatment, nanotechnology has been efficiently used for the photocatalytic degradation of organic dye pollutants. By synthesizing metal oxide semiconductor nanoparticles and metal oxide-graphene nanocomposites, the photocatalytic activity has been enhanced, leading to improved degradation efficiency of dye pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Anindita Bhuyan, Md. Ahmaruzzaman
Summary: With the increase in human population, large amounts of wastewater generated each year and decrease in fresh water availability due to rapid industrialization and agricultural development, the presence of pharmaceutical compounds in various water sources has become a global concern. Efficient removal of these pollutants remains a challenging task, and adsorption techniques using nanoadsorbents have emerged as a popular and cost-effective method for wastewater treatment. This review focuses on the remediation techniques using carbon nanotubes, metal oxides, nanoclay, and new-generation MXenes for pharmaceutical waste treatment via adsorption, highlighting their excellent adsorptive properties and factors affecting adsorption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Alberto Rubin Pedrazzo, Andrea Jouve, Sara Morandi, Maela Manzoli, Claudio Cecone, Pierangiola Bracco, Marco Zanetti
Summary: Metal oxide-based semiconductors (MOS) are promising materials for sensors due to their high efficiency, fast response, stability, simple preparation, and low cost. In this study, a new synthetic route of nanosized MOS was proposed using a solvent-free approach based on the kneading of metal precursors and cyclodextrins (CDs). The resulting metal oxide nanoparticles were characterized and the influence of CD size on the final oxide properties was observed.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Analytical
Lu Kong, Zhenyu Yuan, Hongliang Gao, Fanli Meng
Summary: Gas sensors based on semiconductor metal oxides (SMOs) composites derived from bimetallic metal-organic frameworks (BMOFs) have shown great potential in gas sensing applications. This review systematically summarizes the recent progress in the field, including the sensing performance parameters, mechanisms, strategies for improving sensing performance, and the synthesis methods of BMOFs-derived SMOs composites. It also highlights the advanced performance of spinel structure-like SMOs based gas sensors and discusses the challenges and prospects in this promising area.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Dandan Wang, Kaikai Tang, Jun Xiao, Xiao Li, Mengqi Long, Jun Chen, Hong Gao, Weihua Chen, Chuntai Liu, Hao Liu
Summary: This review discusses the use of Mo-based nanocomposite fibers in supercapacitors, highlighting the advantages of combining Mo-based materials with carbon nanofibers through electrospinning technology to enhance electrochemical performance and prevent self-aggregation. However, challenges remain in the application and further development of Mo-based nanocomposite fibers.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Physics, Atomic, Molecular & Chemical
V. F. Gromov, G. N. Gerasimov, M. I. Ikim, E. Yu. Spiridonova, L. I. Trakhtenberg
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Chemistry, Physical
M. A. Kozhushner, V. S. Posvyanskii, B. V. Lidskii, V. L. Bodneva, O. J. Ilegbusi, L. I. Trakhtenberg
Article
Physics, Condensed Matter
M. A. Kozhushner, V. S. Posvyanskii, B. V. Lidskii, V. L. Bodneva, L. I. Trakhtenberg
PHYSICS OF THE SOLID STATE
(2020)
Article
Chemistry, Analytical
G. N. Gerasimov, V. F. Gromov, M. I. Ikim, O. J. Ilegbusi, S. A. Ozerin, L. Trakhtenberg
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Physical
K. S. Kurmangaleev, M. I. Ikim, M. A. Kozhushner, L. I. Trakhtenberg
Summary: The electronic structure of nanoparticles in binary mixtures of oxides was studied using the example of CeO2-In2O3. The study focused on the effect of catalytically active CeO2 nanoclusters on charge distribution in nanoparticles with a high concentration of conduction electrons (In2O3). It was found that the spillover of oxygen atoms from CeO2 nanoclusters to In2O3 nanoparticles resulted in an enhancement of the inhomogeneous distribution of conduction electrons, leading to a depletion of the near-surface layer. The film resistance increased with an increase in CeO2 concentration, attributed to a decrease in near-surface electron density in In2O3 nanoparticles and overlap of current flow paths by CeO2 nanoclusters.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Multidisciplinary
V. M. Rozenbaum, M. L. Dekhtyar, I. Shapochkina, L. Trakhtenberg
Summary: Operating principles have been established for light-driven molecular machines, describing their working modes and performance characteristics. Research shows that laser pulses have a significant impact on the motion velocity of molecular machines, with the maximum velocity determining the optimal operating mode. Including dye molecules inside cavitand significantly lengthens the fluorescence lifetime.
Article
Chemistry, Physical
Genrikh N. Gerasimov, Maria I. Ikim, Vladimir F. Gromov, Olusegun J. Ilegbusi, Leonid I. Trankhtenberg
Summary: The study demonstrates the formation of clusters with specific structure and sensory properties in SnO2-In2O3 composites by controlling the SnO2 concentration, and reveals the impact of different synthesis methods on the performance of the composites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Atomic, Molecular & Chemical
V. F. Gromov, M. I. Ikim, G. N. Gerasimov, L. I. Trakhtenberg
Summary: The experimental data summarized and analyzed the methods for preparing sorbent systems containing crown ethers and their complexing properties with cations of radioactive and heavy metals. The key factor determining the efficiency of cation adsorption by crown ethers is the fit between the cation size and the cavity diameter of the crown ether. Sorbents in which crown ethers are covalently bonded with organic or inorganic substrates were shown to be more stable in treating municipal and industrial wastewater from radionuclides and heavy metals.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Physics, Atomic, Molecular & Chemical
V. F. Gromov, G. N. Gerasimov, M. I. Ikim, E. Yu. Spiridonova, L. I. Trakhtenberg
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Physics, Atomic, Molecular & Chemical
K. S. Kurmangaleev, M. A. Kozhushner, L. I. Trakhtenberg
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Physics, Atomic, Molecular & Chemical
L. G. Mamsurova, N. G. Trusevich, A. A. Vishnev, K. S. Pigalskiy, L. I. Trakhtenberg
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Physics, Multidisciplinary
V. M. Rozenbaum, I. V. Shapochkina, L. I. Trakhtenberg
Article
Materials Science, Multidisciplinary
K. S. Kurmangaleev, T. Yu. Mikhailova, L. I. Trakhtenberg
INORGANIC MATERIALS
(2020)
Proceedings Paper
Engineering, Biomedical
Alexander S. Ilin, P. A. Forsh, M. I. Ikim, A. V. Koroleva, M. N. Martyshov, L. I. Trakhtenberg, P. K. Kashkarov
4TH INTERNATIONAL CONFERENCE ON NANOTECHNOLOGIES AND BIOMEDICAL ENGINEERING, ICNBME-2019
(2020)