Article
Materials Science, Ceramics
M. A. Vidales-Hurtado, A. I. Caudana-Campos, R. A. Mauricio-Sanchez, G. Mendez-Montealvo, F. Caballero-Briones, A. Mendoza-Galvan
Summary: The study investigates the thermo-reversible sol-gel transition in solutions made of titanium n-butoxide, ethanol, water, and nitric acid using in situ temperature-dependent Fourier transform infrared spectroscopy. It was found that the nitrate ion plays a key role in substituting ligands and forming bridges and chelates, leading to gel formation. The elastic component was identified as the most important in the material's structure based on dynamic rheological studies of the temperature-dependent viscoelastic behavior.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Masoud Emami Mehr, Hossein Maleki-Ghaleh, Mohadeseh Yarahmadi, Majid Kavanlouei, M. Hossein Siadati
Summary: In this study, core/shell ZnO/TiO2 nanocomposite samples were prepared using the sol-gel method at different time spans. The sample prepared in the 15-minute time span (ZnTi15) exhibited the highest photocatalytic activity and charge carrier density, making it the optimal sample. The formation of a heterojunction at the ZnO/TiO2 interface could be attributed to the increased photocurrent density observed for the ZnTi15 sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
C. Gomez-Polo, S. Larumbe, A. Gil, D. Munoz, L. Rodriguez Fernandez, L. Fernandez Barquin, A. Garcia-Prieto, M. L. Fdez-Gubieda, A. Muela
Summary: The study investigates the effects of Cr and N doping on the properties of TiO2 anatase nanoparticles, including adsorption capacity, photocatalytic performance, and antibacterial response. Doping with Cr and Cr/N enhances adsorption capacity and photocatalytic performance, with Cr-TiO2 nanoparticles exhibiting antibacterial activity under visible light. The differences in electrostatic charge and nanoparticle dispersion are suggested as the main reasons for the varied antibacterial response among the doped nanoparticles.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Applied
Lu Zhang, Bolin Zheng, Junyi Zhai, Tao Lin
Summary: In this study, rare earth-doped TiO2 thin films were fabricated by a sol-gel method and it was discovered that the addition of Sn element can significantly reduce the annealing temperature and enhance the photoluminescence intensity of the films.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Physical
Azliza Azani, Dewi Suriyani Che Halin, Kamrosni Abdul Razak, Mohd Mustafa Al Bakri Abdullah, Marcin Nabialek, Muhammad Mahyiddin Ramli, Mohd Fairul Sharin Abdul Razak, Andrei Victor Sandu, Wojciech Sochacki, Tomasz Skrzypczak
Summary: The modification of TiO2 thin film using sol-gel spin coating method to synthesize GO/TiO2 thin films with different amounts of PEG effectively improved the optical properties and wettability. XRD analysis showed amorphous phase, while SEM and AFM images demonstrated reduced particle agglomeration and increased surface roughness with higher PEG content.
Article
Polymer Science
Sarah A. Hesse, Kevin E. Fritz, Peter A. Beaucage, Ethan M. Susca, Jin Suntivich, Ulrich Wiesner
Summary: This article presents a method for preparing asymmetric porous materials using copolymer and non-solvent induced phase separation (CNIPS) technique, and investigates the influence of thermal processing on the structure and properties of these materials. The results show that changing the processing conditions allows for control of the pore structure and composition of the materials, which affects the performance of the membranes. This study is significant for improving the application of porous materials in energy conversion and storage, separation, and catalysis.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Turan Gurgenc, Cevher Kursat Macit, Fatih Biryan, Ezgi Gurgenc, Cihan Ozel, Stefano Bellucci
Summary: In this study, titanium carbide (TiC) reinforced zinc oxide (ZnO) nanoparticles with different ratios of TiC were synthesized using the sol-gel method. The structural, morphological, and dielectric properties of the synthesized nanoparticles were investigated. The results showed that the addition of TiC significantly affected the structure and electrical properties of the nanoparticles.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Jingyi Cai, Haoshan Wei, Yong Zhang, Rui Cai, Xueru Zhang, Yan Wang, Jiaqin Liu, Hark Hoe Tan, Ting Xie, Yucheng Wu
Summary: The efficient separation of photogenerated electron-hole pairs is crucial for high-performance photocatalysts. The porous SrTiO3/SrSO4 heterojunction prepared in this study exhibits enhanced catalytic activity for H-2 evolution, providing a new direction for the development of efficient photocatalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Tanel Taette, Medhat Hussainov, Mahsa Amiri, Alexander Vanetsev, Madis Paalo, Irina Hussainova
Summary: A doping strategy using multi-walled carbon nanotubes (MWCNT) has been found effective in enhancing the mechanical strength and electrical conductivity of ceramic fibers. Rheological properties of metal alkoxide precursors for nanoceramic metal oxide fibers have been investigated, and it was observed that even low concentrations of MWCNTs (less than 0.1 wt.%) can significantly decrease the elongational viscosity and relaxation time. High quality MWCNT/nanoceramic TiO2 composite fibers with electrical conductivity of 50 S/m were successfully obtained.
Article
Chemistry, Physical
Wojciech Guziewicz, Anna Bialas, Bogna D. Napruszewska, Malgorzata Zimowska, Jacek Gurgul
Summary: Aluminum-doped titania samples as supports for copper oxide catalysts showed improved thermal stability and increased specific surface area, leading to a broader temperature window of high catalytic activity. The addition of aluminum also resulted in a shift of the temperature of maximum activity to higher values and reduced nitrous oxide formation.
Article
Materials Science, Multidisciplinary
C. Y. Ma, J. L. Wang, C. Leng, N. Zhou, F. W. Qin, Q. Y. Zhang
Summary: A modified photocatalyst constructed by combining nanoparticulate graphene oxide (GO)-TiO2 films with silver nanoparticles displayed significantly enhanced photocatalytic activity, potentially suitable for water purification.
Article
Engineering, Chemical
Yonghai Gan, Zhihao Hang, Bingdang Wu, Haojie Li, Wentao Zhang, Yeyang Sun, Runsheng Li, Shujuan Zhang
Summary: The study showed a positive correlation between the basicity of titanium coagulants and their coagulation performance, with higher basicity leading to better turbidity removal. Coagulants with higher basicity were also observed to require lower dosages while achieving comparable results when treating low-turbidity water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Humberto Alejandro Monreal Romero, Teresa Perez Pinon, Diana Sagarnaga, Raquel Duarte Rico, Alfredo Nevarez Rascon, Carlos Alberto Martinez Perez, Dagoberto Perez Pinon, Juan Pablo Flores de los Rios, Mario Sanchez Carrillo, Jose Guadalupe Chacon-Nava
Summary: In this study, titanium dioxide scaffolds were successfully synthesized using the sol-gel method. The scaffolds were formed by using titanium isopropoxide as a precursor and a polymeric network of galactopyranose as a template. The synthesized scaffolds have diameters of 50 nm and porosity ranging from 0.3 to 10 nm. XRD analysis confirmed the formation of crystalline phases in the TiO2 scaffold at 700 degrees C. The use of biological polymers as templates provides a low-cost and efficient approach for the synthesis of new materials.
Article
Materials Science, Multidisciplinary
Esra Aslan, Maharram Zarbali
Summary: In this study, titanium-doped zinc oxide (ZnO) thin films were prepared on glass substrates using the sol-gel chemical method, and their electrical, optical, and structural properties were analyzed. It was found that the addition of titanium led to increased resistivity and decreased carrier concentration in ZnO thin films, along with an increase in optical transmittance and changes in photoluminescence properties.
Article
Engineering, Electrical & Electronic
Chih-Chieh Hsu, Pei-Xuan Long, Yu-Sheng Lin
Summary: The effects of active Ag electrodes on the performance of TiOx resistive memory were investigated in this article, showing significant differences in memory characteristics due to different electrode combinations, which may impact the RS behavior.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)