Article
Materials Science, Ceramics
E. Burak Ertus, Cekdar Vakifahmetoglu, Abdullah Oztuerk
Summary: The research found that porous glass embedded with titanium dioxide has a higher efficiency in methylene blue removal, mainly due to its high specific surface area and dispersion of nano-sized anatase TiO2 crystallites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Ying-jie Song, Hai-chao Li, Zi-wei Xiong, Long Cheng, Miao Du, Zun-qi Liu, Jun Li, De-qiang Li
Summary: This study used waste sawdust to prepare TiO2/C composites, which were used to effectively degrade methylene blue (MB) under simulated sunlight. The carbon component in the composite significantly enhanced sensitization, resulting in a wider visible light absorption and decreased charge recombination rate. The MB degradation efficiency reached nearly 100% within 30 minutes in the presence of TiO2/C composites, and the material showed sustained performance after multiple cycles. This green and low-cost preparation method offers a sustainable and efficient alternative to reduce the consumption of fossil resources.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Tianyu Yang, Yu Liu, Guangda Xia, Xiaodong Zhu, Yu Zhao
Summary: The utilization of the multilevel pore structure of natural wood for synthesizing titanium dioxide resulted in a material with improved adsorption and photocatalytic properties. Characterization using SEM, TEM, and X-ray diffraction revealed the presence of anatase and rutile phases in the prepared titanium dioxide.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
The Ky Vo
Summary: In this study, mesoporous microspheres of Al2O3 @TiO2 with improved adsorption and photocatalytic performance were successfully prepared. The incorporation of amorphous γ-Al2O3 was found to enhance the removal of tetracycline and promote the separation and migration of photo-generated holes and electrons. The study provides a simple and scalable method for manufacturing Al2O3-decorated TiO2 microspheres.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Wei Gao, Yufeng Li, Jitao Zhao, Zhe Zhang, Weiwei Tang, Jun Wang, Zhenyu Wu
Summary: Reduced graphene oxide (rGO)/TiO2 nanocomposites, synthesized through a hydrothermal technique, were used as photocatalysts to effectively degrade methylene blue (MB) in industrial dyestuff wastewater. The degradation efficiency of the nanocomposites for MB was as high as 98.18% at 5wt.% rGO content, 0.4 g L-1 rGO/TiO2 content, pH 6, and 60 mg L-1 MB concentration. The photocatalytic degradation mechanism involved immediate oxidative degradation and the combined action of O-2(center dot-), OH(center dot), and h(+) species. The degradation kinetic of the nanocomposites for MB followed a first-order model under UV irradiation.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Polymer Science
Ximena Jaramillo-Fierro, Sneyder Gaona, John Ramon, Eduardo Valarezo
Summary: In this study, GP and GTA geopolymeric materials were prepared and characterized. The compounds showed high adsorption capacity and photocatalytic activity for the degradation of MB dye. The incorporation of ZnTiO3/TiO2 in the geopolymeric matrix allowed GTA to achieve higher overall efficiency compared to GP, combining adsorption and photocatalysis. The synthesized compounds could be used for multiple cycles for the removal of MB from wastewater.
Article
Materials Science, Ceramics
Haibei Tan, Yabin Zhang, Bowen Li, Hao Yang, Haitao Hou, Qinglin Huang
Summary: A polymer-glass flat membrane was prepared using the phase inversion casting method and TiO2 was coated on the surface of the membranes. The membrane was characterized and its photocatalytic degradation of methylene blue was investigated. The results showed that the membrane coated by three layers TiO2 sol exhibited the best photocatalytic degradation performance for methylene blue.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Bugra Akman, Omur Aras
Summary: In this study, a microreactor coated with different silver content ZnO photocatalyst was used for the treatment of aqueous methylene blue solution under UV-A irradiation. The experiments revealed that 91% of methylene blue degradation was achieved with 1% Ag doped ZnO coated microreactor for a residence time of 2.5 minutes, and 96% removal was attained with the addition of 10% hydrogen peroxide. The study also showed the impact of morphological structures of ZnO-coated surfaces with and without silver on water treatment efficiency.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
R. S. Pedanekar, S. V. Mohite, S. B. Madake, Y. Kim, J. L. Gunjakar, K. Y. Rajpure
Summary: In this study, Bi2WO6 thin films were deposited using a chemical spray pyrolysis technique at different substrate temperatures. The films were evaluated for their physicochemical behavior through various analyses. The Rietveld refinement study confirmed the crystal structure of the thin films. The film deposited at 325 degrees C showed the highest photocurrent density and was further used for degradation experiments.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Aleksandra Babyszko, Agnieszka Wanag, Marcin Sadlowski, Ewelina Kusiak-Nejman, Antoni W. W. Morawski
Summary: This paper presents a modification of titanium dioxide with fumed silica and investigates the characteristics and photocatalytic activity of the materials. The results show that the presence of SiO2 effectively inhibits the increase in crystallite size and decrease in specific surface area during calcination. SiO2 also contributes to the increase in specific surface area and the change in band gap energy values. The photocatalytic activity of SiO2/TiO2 photocatalysts is higher compared to the starting TiO2, and it increases with the increase in SiO2 content.
Article
Engineering, Electrical & Electronic
T. V. K. Karthik, A. Maldonado, M. de la L. Olvera, A. G. Hernandez, J. Vega-Perez, H. Gomez-Pozos
Summary: Copper-doped zinc oxide (ZnO:Cu) thin films were deposited on glass substrates using ultrasonic spray pyrolysis technique, and the effect of water content on methylene blue (MB) dye degradation through a photocatalytic process was studied. Different films exhibited varying degradation behaviors, with the photocatalytic response related to the surface morphology. Films deposited with 80% water content showed more promising MB degradation for UV exposure times longer than 180 min.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Physical
J. G. Cuadra, S. Molina-Prados, Gladys Minguez-Vega, Ana. C. Estrada, T. Trindade, C. Oliveira, M. P. Seabra, J. Labrincha, S. Porcar, R. Cadena, D. Fraga, J. B. Carda
Summary: Transparent TiO2 thin films coated with Ag NPs were synthesized using industrially applicable techniques, without high vacuum. These films showed high transmittance (>80%) and exhibited photocatalytic and antimicrobial properties. The presence of Ag NPs on the TiO2 surface improved the photocatalytic efficiency, resulting in a 99% degradation of Rhodamine B under UV light. The films also showed significant antimicrobial activity, killing 93% of Gram-negative bacteria when irradiated by UV light for 4 hours.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Yabin Zhang, Haibei Tan, Chunfang Wang, Bowen Li, Hao Yang, Haitao Hou, Changfa Xiao
Summary: A TiO2-coated glass hollow fiber membrane was successfully synthesized and its photocatalytic removal of methylene blue from wastewater was investigated. The results showed that the membrane had good photocatalytic and antifouling properties, significantly improving the removal of methylene blue compared to the basement membrane. The membrane could be recycled multiple times with a high removal degree of methylene blue.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Polymer Science
Mohammad BinSabt, Varsha Sagar, Jagpreet Singh, Mohit Rawat, Mohamed Shaban
Summary: This study investigates the use of titanium dioxide nanoparticles (CS-TiO2 NPs) synthesized with cannabis sativa (bhang) leaf extract to mitigate methylene blue dye. The synthesized CS-TiO2 NPs exhibited remarkable photocatalytic degradation potential, making them a sustainable alternative for water purification.
Article
Chemistry, Multidisciplinary
Martina Kocijan, Lidija Curkovic, Igor Bdikin, Gonzalo Otero-Irurueta, Maria J. Hortigueela, Gil Goncalves, Tina Radosevic, Damjan Vengust, Matejka Podlogar
Summary: This study demonstrated the immobilisation of TiO2 nanoparticles and rGO-TiO2 nanocomposites on glass sheets for photocatalytic degradation of MB dye. The immobilised rGO/TiO2 nanocomposite showed high photocatalytic activity under both ultraviolet and simulated solar irradiation, and it was convenient for separation and reusability.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Multidisciplinary
N. Pariona, K. I. Camacho-Aguilar, R. Ramos-Gonzalez, Arturo I. Martinez, M. Herrera-Trejo, E. Baggio-Saitovitch
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2016)
Article
Nanoscience & Nanotechnology
H. M. Hdz-Garcia, R. Munoz-Arroyo, A. I. Martinez, M. A. Gonzalez, E. E. Granda-Gutierrez, J. L. Acevedo-Davila, M. Castro-Roman, F. Garcia-Vazquez
JOURNAL OF NANOMATERIALS
(2016)
Article
Optics
S. Rekha, Arturo I. Martinez, T. A. Safeera, E. I. Anila
JOURNAL OF LUMINESCENCE
(2017)
Article
Materials Science, Multidisciplinary
K. I. Camacho, N. Pariona, A. I. Martinez, E. Baggio-Saitovitch, M. Herrera-Trejo, Dale L. Perry
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
S. Martinez-Vargas, Arturo I. Martinez, Elias E. Hernandez-Beteta, O. F. Mijangos-Ricardez, V. Vazquez-Hipolito, C. Patino-Carachure, H. Hernandez-Flores, J. Lopez-Luna
JOURNAL OF MATERIALS SCIENCE
(2017)
Article
Materials Science, Multidisciplinary
Alfonso Garcia-Carbajal, Martin Herrera-Trejo, Edgar-Ivan Castro-Cedeno, Manuel Castro-Roman, Arturo-Isaias Martinez-Enriquez
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2017)
Article
Environmental Sciences
Nicolaza Pariona, Arturo I. Martinez, Homero Hernandez-Flores, Ricardo Clark-Tapia
SCIENCE OF THE TOTAL ENVIRONMENT
(2017)
Article
Materials Science, Multidisciplinary
J. L. Acevedo-Davila, R. Munoz-Arroyo, H. M. Hdz-Garcia, A. I. Martinez-Enriquez, M. Alvarez-Vera, F. A. Hernandez-Garcia
Article
Engineering, Mechanical
M. Alvarez-Vera, H. M. Hdz-Garcia, R. Munoz-Arroyo, J. C. Diaz-Guillen, A. I. Mtz-Enriquez, J. L. Acevedo-Davila
Article
Chemistry, Physical
K. O. Alcantar-Medina, M. Herrera-Trejo, A. Tlahuice-Flores, S. Martinez-Vargas, J. Oliva, A. I. Martinez
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2017)
Article
Biology
Nicolaza Pariona, Arturo I. Martinez, H. M. Hdz-Garcia, Luis A. Cruz, Adolfo Hernandez-Valdes
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2017)
Article
Materials Science, Biomaterials
Carmen L. Zegarra-Urquia, Julio Santiago, Joel D. Bumgardner, Jose Vega-Baudrit, Claudia A. Hernandez-Escobar, E. Armando Zaragoza-Contreras
Summary: Nanoparticles of the chitosan-poly((alpha,beta)-DL-aspartic acid) polyelectrolyte complex (PEC) were successfully synthesized in this study, which exhibited biodegradability, biocompatibility, and non-toxicity. The ionotropic gelation method was employed to prepare these nanoparticles, and preliminary experiments demonstrated their potential for encapsulating hydrophilic drugs.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2023)
Article
Materials Science, Biomaterials
Carmen L. Zegarra-Urquia, Julio Santiago, Joel D. Bumgardner, Alexander K. Goroncy, Jose Vega-Baudrit, Claudia A. Hernandez-Escobar, E. Armando Zaragoza-Contreras
Summary: The study successfully incorporated the anti-tuberculosis drug Isoniazid into nanoparticles of polyelectrolyte chitosan-poly(aspartic acid) complexes using the ionotropic gelation technique, and confirmed it through various characterization methods, obtaining nanoparticles with a small diameter.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2022)
Article
Materials Science, Ceramics
J. Oliva, C. R. Garcia, E. Verduzco, A. I. Martinez, A. Manthiram, K. P. Padmasree
CERAMICS INTERNATIONAL
(2017)
Article
Materials Science, Ceramics
C. R. Garcia, J. Oliva, M. A. Garcia-Lobato, A. I. Martinez, R. Ochoa-Valiente, G. A. Hirata
CERAMICS INTERNATIONAL
(2017)
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.
