Article
Materials Science, Multidisciplinary
Chang Soo Lee, Hoseok Jang, Jeonghwan Kim, Jong Hak Kim
Summary: In this study, a comb copolymer was synthesized and used as a template to fabricate hierarchically porous TiO2 nanoisland membranes with superior interconnectivity and high water permeability. The resulting membranes exhibited excellent photocatalytic ability and significantly reduced organic fouling. The self-assembled microphase-separated structure and high molecular weight of the comb copolymer contributed to the improved performance compared to traditional Pluronic block copolymers.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Ceramics
Charitha Thambiliyagodage, Shanitha Mirihana
Summary: This study successfully synthesized Fe and Cu co-doped TiO2 nanoparticles and investigated their photocatalytic activity. Doping with Fe and Cu can enhance the visible light sensitivity of TiO2, but increasing dopant concentration leads to a decrease in photocatalytic activity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yuanting Wu, Mengyao Guan, Xiaojing Chang, Jinrong Wang, Shuming Xu
Summary: We constructed a homogeneous double-layer TiO2-ZrO2-SiO2 photocatalyst with multi-heterojunction (D-TZS) using a simple sol-gel method, which effectively improves the photocatalytic property. By investigating various factors, we found that D-TZS can degrade Rh B by about 99.6% within 40 minutes and almost completely degrade it within 60 minutes. This is attributed to the homogeneity, multiple heterojunctions, and oxygen vacancies of D-TZS.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Zhongli Zhou, Hang Yin, Yuling Zhao, Jianmin Zhang, Yahui Li, Jinshi Yuan, Jie Tang, Fengyun Wang
Summary: By controlling the phosphate concentration, the recombination rate of electron-hole pairs can be reduced to enhance photocatalytic performance. The heterojunction between alpha-Fe2O3 and RT in the hollow nanospheres leads to excellent photocatalysis under visible light, significantly improving the degradation rate of rhodamine B.
Article
Materials Science, Ceramics
Maha Alhaddad, Ahmed Shawky
Summary: This study presents a method to effectively treat antibiotic waste in water using visible-light-activated La-doped NaTaO3 perovskite, producing FO@LNTO nanocomposites for the photodegradation of ciprofloxacin. The nanocomposite showed high efficiency and sustainable recyclability, demonstrating a promising approach for eliminating antibiotic waste with perovskite-based photocatalysts.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Enrico Paradisi, Roberto Rosa, Giovanni Baldi, Valentina Dami, Andrea Cioni, Giada Lorenzi, Cristina Leonelli
Summary: This article introduces a new method for fast and simple synthesis of crystalline TiO2 nanoparticles with photocatalytic activity, and demonstrates the application of this method in the production of nanotitania.
Article
Chemistry, Physical
O. M. Lemine, Nawal Madkhali, Marzook Alshammari, Saja Algessair, Abbasher Gismelseed, Lassad El Mir, Moktar Hjiri, Ali A. Yousif, Kheireddine El-Boubbou
Summary: The study investigated the heating efficiencies of gamma-Fe2O3 and hybrid gamma-Fe2O3-TiO2 nanoparticles under an alternating magnetic field, showing that gamma-Fe2O3 exhibited better heating efficiency potential for magnetic hyperthermia treatment. The results suggest that the fabricated nanocomposites have great potential for various applications, particularly in magnetic photothermal hyperthermia treatments.
Article
Chemistry, Physical
Ixchel Alejandra Mejia-Estrella, Alejandro Perez Larios, Belkis Sulbaran-Rangel, Carlos Alberto Guzman Gonzalez
Summary: This study successfully synthesized Pt/TiO2 and TiO2-CeO2 (1%, 5% and 10% CeO2) nanostructured catalysts through the sol-gel and impregnation method, and characterized them through various spectroscopy and surface techniques. The results showed that the addition of CeO2 increased the pore diameter and surface area of the supports, and decreased the size of Pt nanoparticles. The observed shift in energy band gap by UV-vis confirmed the feasibility of these materials for photocatalytic reactions using visible light. In the photocatalytic oxidation activity test, these materials achieved a removal efficiency of 98% for the herbicide 2,4-dichlorophenoxyacetic acid, compared to 32% for unmodified TiO2.
Review
Biotechnology & Applied Microbiology
Omar Fawzi Suleiman Khasawneh, Puganeshwary Palaniandy
Summary: The global concern over the accumulation, toxicity, and potential risk of organic pollutants in the aquatic environment is increasing, while conventional wastewater treatment methods are inefficient. Therefore, developing effective techniques for the removal of organic pollutants is crucial. Photocatalysis technology is considered a promising, effective, and sustainable approach, with Fe2O3-TiO2 showing good performance for pollutant removal.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Multidisciplinary
Sanya Khursheed, Rida Tehreem, Muhammad Awais, Dilshad Hussain, Muhammad Imran Malik, Young Sun Mok, Ghayas Uddin Siddiqui
Summary: The purpose of this study was to investigate the effect of photocatalytic degradation using nitrogen and tungsten co-doped titania (TiO2) nanoparticles, which are cost-effective and environmentally friendly. The synthesized nanoparticles were analyzed using various techniques, including spectroscopy, microscopy, and spectrometry. The co-doping of metal and non-metal enhanced the photocatalytic properties of the TiO2 nanoparticles, particularly in the visible region. This resulted in improved absorption of visible light and reduced recombination of electron-hole pairs, leading to accelerated photodegradation. The bandgap of the titania nanoparticles was reduced after efficient doping, enabling the photodegradation of malachite green under visible light illumination. The results of photocatalytic degradation were confirmed using spectroscopy and high-performance liquid chromatography coupled with mass spectrometry.
Article
Materials Science, Ceramics
The Ky Vo
Summary: Mo-modified TiO2 microspheres prepared by spray pyrolysis method showed high removal efficiency towards tetracycline antibiotics and exhibited good photocatalytic activity and stability.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
M. Faisal, Jahir Ahmed, Md. A. Rashed, S. A. Alsareii, Farid A. Harraz
Summary: This study successfully designed and fabricated an extremely active and ultrafast Ag@PPy-C/m-TiO2 ternary photocatalyst, which showed remarkable efficiency in removing insecticides and dyes under visible light irradiation. This research provides a promising solution for the effective management of hazardous chemicals.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Patrick Ehi Imoisili, Tien-Chien Jen, Babak Safaei
Summary: The study synthesized a V/Ag/TiO2 nanocatalyst with enhanced photocatalytic activity, showing lower band gap and larger surface area, and demonstrating higher activity in the visible light region.
NANOTECHNOLOGY REVIEWS
(2021)
Article
Chemistry, Applied
Mangesh G. Bhosale, Radhakrishna S. Sutar, Swati S. Londhe, Meghshyam K. Patil
Summary: Ce-doped TiO2 nanoparticles were prepared by the sol-gel method and characterized by various analytical techniques. The study found that increasing the dopant content of cerium in TiO2 improves the properties of the nanoparticles and enhances photocatalytic activity. Furthermore, Ce-doped TiO2 showed efficient degradation of antibacterial agents and mixture of contaminants.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Arpan Kumar Nayak, Thamizharasan Gopalakrishnan
Summary: This study demonstrates a facile sol-gel method to synthesize nanomaterials with different phases and crystal structures, which has remarkable importance for supercapacitors and solid-state supercapacitor devices, showing potential applications in energy storage devices.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Analytical
Romeo Villarreal-Morales, Laura Hinojosa-Reyes, Aracely Hernandez-Ramirez, Edgar Ruiz-Ruiz, Maria de Lourdes Maya Trevino, Jorge Luis Guzman-Mar
Summary: In this study, an automated methodology was proposed for the determination of plasticisers in water samples collected from wastewater treatment plants. The methodology combined solid-phase extraction with high-performance liquid chromatography and ultraviolet detection. The selected preconcentration conditions and analysis parameters were optimized. The proposed methodology was successfully applied to detect Bisphenol A and 4-tert-butylphenol in water samples from two wastewater treatment plants.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Rafael Hernandez-Tenorio, Jorge Luis Guzman-Mar, Laura Hinojosa-Reyes, Norma Ramos-Delgado, Aracely Hernandez-Ramirez
Summary: This study implemented a highly selective and sensitive solid-phase extraction (SPE) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) analytical method to successfully detect and quantify emerging contaminants in hospital wastewater. The method exhibited good linearity, with correlation coefficients ranging from 0.991 to 0.999, and was successfully applied to analyze wastewater samples from a public hospital in Mexico.
JOURNAL OF THE MEXICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Electrical & Electronic
Khirbet Lopez-Velazquez, Jorge L. Guzman-Mar, Aracely Hernandez-Ramirez, Edgar Gonzalez-Juarez, Minerva Villanueva-Rodriguez
Summary: Fe-BiOBr-N photocatalyst co-doped with Fe and N was successfully synthesized and characterized, showing improved photocatalytic activity for BPA degradation compared to unmodified BiOBr. The incorporation of Fe and N in BiOBr resulted in a decrease in band gap, crystal size, and recombination rate of photogenerated charges, as well as an increase in specific surface area. Fe-BiOBr-N is a promising option for the effective elimination of persistent contaminants such as BPA in the aqueous medium under visible radiation.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Raisa Estefania Nunez-Salas, Aracely Hernandez-Ramirez, Veronica Santos-Lozano, Laura Hinojosa-Reyes, Jorge Luis Guzman-Mar, Miguel Angel Gracia-Pinilla, Maria de Lourdes Maya-Trevino
Summary: FeTiO3/ZnO catalyst prepared by ultrasound-assisted chemical precipitation method showed promising photocatalytic performance, with FeTiO3/ZnO (1%wt.) exhibiting superior degradation of CPX compared to bare ZnO. Additionally, the heterostructured material demonstrated high stability and reusability over multiple cycles.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Materials Science, Ceramics
J. C. Murillo-Sierra, M. D. L. Maya-Trevino, R. E. Nunez-Salas, D. A. Pino-Sandoval, A. Hernandez-Ramirez
Summary: In this study, ZnS/WO3 coupled photocatalysts were synthesized and showed significantly improved catalytic activity compared to individual semiconductors. The ZnS5%/WO3 photocatalyst achieved complete degradation of SMX in 60 minutes. The enhancement was attributed to the reduced recombination rate.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Diego Alejandro Pino-Sandoval, Laura Hinojosa-Reyes, Jorge Luis Guzman-Mar, Juan Camilo Murillo-Sierra, Aracely Hernandez-Ramirez
Summary: This work evaluated the solar photocatalytic degradation of a drug mixture in different environments and studied the photocatalytic activity of two commercial catalysts. The results showed that solar photocatalysis can effectively degrade the drug mixture under suitable conditions.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Chemistry, Physical
Rafael Hernandez-Tenorio, Aracely Hernandez-Ramirez, Monika Moeder, Jorge Luis Guzman-Mar
Summary: This study investigated the removal of oxcarbazepine from water through photolysis and heterogeneous photocatalysis processes, and monitored the formation of transformation products. The results showed that oxcarbazepine was completely degraded within 30 minutes using both methods.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Laura Yanneth Ramirez-Quintanilla, Diego Pino-Sandoval, Juan Camilo Murillo-Sierra, Jorge Luis Guzman-Mar, Edgar J. Ruiz-Ruiz, Aracely Hernandez-Ramirez
Summary: B-TiO2 photocatalyst with 3 wt.% boron incorporation exhibited the best performance on the degradation and mineralization of estriol. It achieved complete degradation at 300 kJ/m(2) of accumulated energy and 71% of mineralization at 400 kJ/m(2) (2 h), resulting in a non-toxic effluent. The synthesized materials were characterized by various techniques including UV-Vis diffuse reflectance spectroscopy, X-ray diffraction, Raman spectroscopy, Scanning electron microscopy, and X-ray photoelectron spectroscopy.
Article
Engineering, Environmental
D. Delgado-Diaz, A. Hernandez-Ramirez, J. L. Guzman-Mar, M. Villanueva-Rodriguez, L. Maya-Trevino, L. Hinojosa-Reyes
Summary: The N-S co-doped TiO2 photocatalyst was successfully prepared and showed enhanced photocatalytic activity compared to commercial TiO2 P25 under UV and visible light. It exhibited high removal efficiency of organic arsenic compounds and reduced effluent toxicity, demonstrating great potential for water treatment applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Clovis Nchikou, Jose Angel Loredo-Medrano, Aracely Hernandez-Ramirez, Jose Angel Colina-Marquez, Miguel Angel Mueses
Summary: In this study, a new Six Flux Model in two dimensions (SFM-2D) was introduced to estimate the local volumetric rate of photon absorption in polar coordinates, and it was applied and validated on a photocatalytic reactor. An analytical solution of the radiant transfer equation was obtained based on the novel SFM-2D, which also included the estimation of the radiant field in a compound parabolic photoreactor. The numerical results from simulations showed satisfactory comparisons with previous works, with discrepancies less than 0.5% for the overall performance of the new model.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
J. C. Murillo-Sierra, A. Hernandez-Ramirez, Zong-Yan Zhao, Angel Martinez-Hernandez, M. A. Gracia-Pinilla
Summary: The study successfully degraded tetracycline antibiotic in water using WO3/ZnS photocatalyst, achieving complete removal of the pollutant with high efficiency, providing a sustainable treatment method.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
E. J. Hernandez-Moreno, A. Martinez de la Cruz, L. Hinojosa-Reyes, J. Guzman-Mar, M. A. Gracia-Pinilla, A. Hernandez-Ramirez
Summary: In this study, WO3/NaNbO3-coupled photocatalysts with different ratios were synthesized and characterized, with the composite with the highest WO3 mass ratio showing enhanced photocatalytic activity compared to the bare materials.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Engineering, Environmental
Sandra Yadira Mendiola-Alvarez, Javier Arana, Jose Miguel Dona Rodriguez, Aracely Hernandez-Ramirez, Gemma Turnes Palomino, Carlos Palomino Cabello, Laura Hinojosa-Reyes
Summary: The photocatalytic activity of mixed oxide alpha-Fe2O3/TiO2 doped with P was evaluated for diuron degradation and NOx oxidation. The Ti/P showed the highest activity for diuron degradation, while alpha Fe-Ti demonstrated the best performance for NOx oxidation under both UV and visible light.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Raisa Estefania Nunez-Salas, Jorge Rodriguez-Chueca, Aracely Hernandez-Ramirez, Encarnacion Rodriguez, Maria de Lourdes Maya-Trevino
Summary: This study compared the photocatalytic inactivation of E. coli and Enterococcus sp. strains using boron-doped ZnO (B-ZnO) with ZnO and TiO2. Under darkness, B-ZnO showed better performance, while under solar simulated irradiation, all three materials exhibited significant disinfection effects. The desirability function confirmed B-ZnO as the best material with enhanced photocatalytic antimicrobial activity against both strains.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)