Article
Environmental Sciences
Atasheh Soleimani-Gorgani, Hussein E. Al-Hazmi, Amin Esmaeili, Sajjad Habibzadeh
Summary: Sn-doped TiO2 nanoparticles were synthesized using a sol-gel method and screen-printing pastes were prepared to evaluate their photocatalytic activity. The highest photocatalytic activity was obtained at a calcination temperature of 450 degrees C.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Almudena Aguinaco, Beatriz Amaya, Milagrosa Ramirez-del-Solar
Summary: Fe3+-TiO2 thin films were successfully prepared using a sandwich approach, and their structural, morphological, optical, and photocatalytic properties were studied. The incorporation of Fe3+ altered the material properties to enhance photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Ximena Jaramillo-Fierro, Ricardo Leon
Summary: The study investigated the ability of TiO2, La/TiO2, Ce/TiO2, and Eu/TiO2 nanoparticles to remove free cyanide from water. The results showed that La/TiO2 had the highest cyanide removal percentage (98%), followed by Ce/TiO2 (92%), Eu/TiO2 (90%), and TiO2 (88%). This suggests that La, Ce, and Eu dopants can improve the properties of TiO2 and enhance its ability to remove cyanide species from aqueous solutions.
Article
Food Science & Technology
Gyorgy Schneider, Bettina Schweitzer, Anita Steinbach, Botond Zsombor Pertics, Alysia Cox, Laszlo Korosi
Summary: The study found that phosphorous-fluorine co-doped TiO2 nanoparticles exhibited significant antibacterial activities against various foodborne pathogenic bacteria, especially those prepared through 3 and 6 hours of hydrothermal synthesis.
Article
Chemistry, Multidisciplinary
Ramanujam Girija, Stella Mary, G. Balakrishnan, Sivalingam M. Mariappan, Mohamed S. Hamdy, Mohd Shkir
Summary: By co-doping titanium dioxide nanoparticles with activated charcoal and iron elements, this study achieved efficient degradation of methylene blue dye and demonstrated high photocatalytic activity.
Article
Environmental Sciences
Guy Didier Fanou, Mamadou Traore, Benjamin Kouassi Yao, Andrei Kanaev, Khay Chhor
Summary: A new composite photocatalyst was developed by grafting size-selected 5-nm titanium-oxo-alkoxo nanoparticles onto P25-TiO2 nanoparticles and incorporating HAP obtained by co-precipitation of salts. The photocatalytic yield was increased for the composite photocatalysts with the addition of HAP, likely due to a synergy between adsorption and photo-oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Karanpal Singh, Nancy, Harpreet Kaur, Pushpender Kumar Sharma, Gurjinder Singh, Jagpreet Singh
Summary: The study synthesized undoped and Cobalt-doped zinc oxide nanoparticles (Co doped ZnO NPs) and confirmed the incorporation of the Co dopant through spectroscopic and microscopic techniques. The Co-doped ZnO NPs showed a red shift in the UV-absorption spectra and a decrease in band gap value, indicating successful integration of Co2+ ions into the ZnO matrix. The synthesized NPs exhibited excellent photocatalytic and antimicrobial activity, with 1% Co-doped ZnO showing the highest photocatalytic efficiency.
Article
Engineering, Environmental
Sonam Rani, Alok Garg, Neetu Singh
Summary: A novel photocatalyst for degrading antibiotics through photocatalysis under sunlight irradiation has been studied. The catalyst showed high activity and maintained it after multiple cycles of use. This study demonstrates the feasibility of hybridizing doped dual semiconductor nanostructures in solar light-powered pharmaceutical wastewater degradation.
ENVIRONMENTAL ENGINEERING RESEARCH
(2022)
Article
Chemistry, Physical
Chaehun Lim, Ha-Rim An, Seongmin Ha, Seongjae Myeong, Chung Gi Min, Hea-Jong Chung, Byoungchul Son, Chang-Yeon Kim, Ji-In Park, Hyeran Kim, Hyun Uk Lee, Young-Seak Lee
Summary: We propose an underwater plasma method to produce nanoporous N-doped TiO2 (N-TiO2) photocatalysts with high reactivity in the visible light range. The unique energy input of this technology enables the synthesis, crystallization, doping, and porosity of TiO2 within minutes. The resulting N-TiO2 demonstrates a nanoporous structure with doped N atoms, which leads to narrow bandgap, effective charge-carrier separation, and enhanced light absorbing ability. The N-TiO2 photocatalysts exhibit efficient photocatalytic activities and excellent antibacterial ability, making them suitable for environmental and biomedical applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Tao Ke, Shuyi Shen, Krishnamoorthy Rajavel, Kun Yang, Daohui Lin
Summary: A novel hybrid of nitrogen-doped Ti3C2 nanosheets and TiO2 nanoparticles was developed for efficient photocatalysis. The heterojunction between nitrogen-doped Ti3C2 and TiO2, along with the nitrogen doping, played crucial roles in facilitating electron migration and inhibiting electron-hole pair recombination, resulting in enhanced degradation of methylene blue under UV-light.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Ceramics
S. Lopez-Esteban, B. Cabal, A. Borrell, J. F. Bartolome, A. Fernandez, M. Faraldos, A. Bahamonde, J. S. Moya, C. Pecharroman
Summary: This study investigates the properties of TiO2-anatase nanoparticles attached by a low-melting point inorganic glass. The composition does not contain toxic metals and shows excellent wettability on ceramic nanoparticles. The mechanical strength of the composites is remarkably enhanced by adding a small amount of glass, and the self-cleaning properties of TiO2-anatase are not affected by the presence of the glass.
CERAMICS INTERNATIONAL
(2021)
Article
Green & Sustainable Science & Technology
Zhenzi Li, Shijie Wang, Jiaxing Wu, Wei Zhou
Summary: TiO2 nanomaterial photocatalysts have received extensive research interest for energy and environmental applications. The main challenges are the large bandgap and charge-carrier recombination. Recent reports suggest that engineering the defects of TiO2 can enhance photoresponse and promote charge separation efficiency. This review summarizes the synthesis strategies for defective TiO2, especially black TiO2 nanomaterials, and discusses their applications, defect types, characteristics, and photocatalytic mechanism in detail.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Physical
Bo Yu, Lianhong Zhang, Hongbo Wu, Jie Wen, Arshid Mahmood Ali, Hui Zhang, Guoping Zhang, Mingwei Yu
Summary: The F modification of titanium dioxide was achieved for the first time through a plasma method, resulting in efficient degradation of dyes under visible light.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Energy & Fuels
Ayat N. El-Shazly, Aiat H. Hegazy, E. T. El Shenawy, Mahmoud A. Hamza, Nageh K. Allam
Summary: The facile synthesis of anatase multi-doped TiO2 mesocrystals with highly energetic {001} facets and their outstanding photocatalytic activity is reported in this study. Various techniques were used to investigate the structural and compositional properties, revealing the fabrication of single crystal-like mesocrystals. The Co-doped C/Ti3+ TiO2 mesocrystals showed an unprecedented hydrogen production rate in water splitting, making them promising candidates for various photocatalytic applications.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Jiawei Zhao, Bin Wang, Yaru Zhao, Mingming Hou, Changhui Xin, Qian Li, Xin Yu
Summary: This study aims to fabricate self-doped Ti3+-TiO2 microspheres and dye sensitized self-doped Ti3+-TiO2 composites with high surface areas and visible-light absorption for highly enhanced photocatalytic tetracycline degradation under visible-light irradiation. The experimental results showed that the obtained Ti3+-TiO2 microspheres showed enhanced visible-light capture capacity and a larger surface area. Besides, the obtained Eosin Y/Ti3+-TiO2 composites showed efficient visible-light absorption and highly boosted photocatalytic performance towards tetracycline degradation. The highest rate constant for Eosin Y/Ti3+-TiO2-9% composite reached as high as 0.06657 min-1, approximately 8.09 times that of commercial TiO2, strongly demonstrating the significant roles of dye sensitization. Finally, a reasonable dye sensitization visible-light photocatalytic mechanism was suggested.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)