Article
Green & Sustainable Science & Technology
Yujie Tan, Weixuan Zhao, Luying Sun, Renxi Zhang, Jianyuan Hou, Shaoxiang Fu, Weien Xu, Ruina Zhang
Summary: A plasma-assisted catalyst modified with biochar was found to significantly enhance the photoactivity of TiO2 for formaldehyde abatement. The addition of 5% biochar to the catalyst (C/TiO2) achieved the highest removal efficiency by increasing meso/microporous structures, decreasing the bandgap, and diminishing the recombination rate of electron-hole pairs. This new catalyst has promising applications for the degradation of volatile organic compounds.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Qing Jin, Youlin Xiang, Lu Gan
Summary: Indoor formaldehyde pollution is a serious threat to human health, but this study developed a g-C3N4-modified TiO2 composite photocatalyst that can degrade formaldehyde released from particle boards in real-time under visible light irradiation. The g-C3N4/TiO2 coating has a lower band gap energy, enabling it to effectively capture luminous energy in the visible light region. The photocatalytic coating exhibited high efficiency in degrading formaldehyde and maintained catalytic stability in various conditions. Hydroxyl and superoxide radicals were found to be the major active species responsible for formaldehyde degradation. This study provides a practical approach for improving indoor air quality through photocatalyst surface engineering.
Article
Materials Science, Ceramics
S. K. Arya, Manmeet Kaur Chhina, Raveena Choudhary, Vimi Dua, K. Singh
Summary: The study investigates the growth of nanocrystalline phases in 30Li(2)O-55B(2)O(3)-5ZnO-7.5TiO(2)-2.5V(2)O(5) (mol%) glass through heat treatments, revealing the presence of Zn4O(BO2)(6), LiV6O13, and Li-0.74(Ti3O6) phases. The resulting glass ceramics show potential as photocatalysts for organic substance degradation in UV-Visible light without the need for capping agents.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Alba Hernandez-Zanoletty, Oscar Cabezuelo, Agustin Paris-Reche, Isabel Oller, M. Inmaculada Polo-Lopez, Ana Aguera, Patricia Plaza, M. Luisa Marin, Francisco Bosca, Sixto Malato
Summary: This study evaluated the application of TiO2 photocatalysts supported on glass wool and silica material for urban wastewater treatment. The SiO2_TiO2 photocatalyst showed high and stable performance in removing pollutants in water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Jihai Duan, Xin He, Zheng Ma, Jin Yue, Weiwen Wang, Chaojie Li
Summary: This study enhanced the UV light absorption capacity of the catalyst by adding UiO-66 to Zr-doped TiO2 and supported Ag, achieving efficient degradation of formaldehyde. The uniformly distributed ZrO2 nanoparticles derived from UiO-66 significantly improved the visible light absorption capacity of the catalyst.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Polymer Science
Byung-Geon Park
Summary: In this study, TiO2 photocatalysts doped with metal ions and nitrogen were prepared using a sol-gel method. The N/Ni/TiO2 showed the highest photocatalytic activity and sterilization efficiency among the samples tested, due to its extended light absorption region and high optical intensity.
Article
Chemistry, Physical
Wiem Jedidi, Jihene Arfaoui, Uriel Caudillo-Flores, Mario J. Munoz-Batista, Zouhaier Ksibi, Anna Kubacka, Abdelhamid Ghorbel, Marcos Fernandez-Garcia
Summary: This study evaluated the photocatalytic activity of a series of Zr-TiO2 materials in the degradation of 2-propanol under UV and sunlight irradiations. The results showed that doping with a small amount of zirconium enhanced the photocatalytic activity of TiO2, with higher activity observed under UV illumination.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Wen-Jun Qiang, Qing Huang, Jia-Hao Shen, Qin-Fei Ke, Jun-Ying Lue, Ya-Ping Guo
Summary: In this study, CuO and MnO2 catalysts were deposited on a glass-fiber supporter for the efficient oxidation of formaldehyde. The synergistic effect of MnO2 major catalysts and CuO cocatalysts in promoting the thermocatalytic oxidation of formaldehyde was revealed.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Nanoscience & Nanotechnology
Yongjun Wu, Nina Xie, Lu Yu
Summary: The novel Ag-Si-TiO2 composite material showed efficient catalytic performance for removing residual formaldehyde in shiitake mushrooms. The optimal catalytic efficiency was achieved with 6.0 wt%Ag-3.0 wt%Si-TiO2 samples, reaching a degradation efficiency of 96.6% after 40 W 365 nm UV lamp irradiation for 360 min. The kinetics of formaldehyde degradation could be described by Langmuir-Hinshelwood first-order kinetic model.
SCIENCE OF ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Bing Bai, Linlin Qiu, Deqiang Mei, Zhengfei Jin, Lixin Song, Pingfan Du
Summary: TiO2/porous carbon fiber cloth composite, prepared through microwave hydrothermal method and thermal reduction, exhibits excellent photocatalytic activity and stability, offering a new method for the practical application of supported photocatalysts.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Thermodynamics
L. Lyubenova, V. Rangelova, M. Spassova, T. Spassov
Summary: A series of Zr-based glasses were obtained by rapid melt quenching and their thermal characteristics were determined. Glass forming ability criteria were applied to predict the glass forming ability of the alloys and study its dependence on the alloy composition. The variation in the glass forming ability was mainly due to difficulties in the crystallization process rather than the stability of the melts.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Engineering, Environmental
Aadil Bathla, Deepak Kukkar, Philippe M. Heynderickx, Sherif A. Younis, Ki-Hyun Kim
Summary: A mini-scale air purifier system was built using honeycomb ceramic filters coated with Pt@Cu/TiO2. The photocatalytic activity of the system was enhanced by the Pt metal sites and electronic transitions between Pt and Cu sites. AP (PCT-2) showed the highest efficacy in removing formaldehyde vapor.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yong Woo Song, Seong Eun Kim, Jin Chul Park
Summary: With the increase in indoor habitation and advancements in building technology, maintaining high-quality indoor air has become increasingly important. This study explores the feasibility of using titanium dioxide photocatalysts to improve indoor air quality and finds that variations in UV radiation intensity and reactor volume significantly influence the photocatalytic effectiveness of the material.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Environmental Sciences
Ahmad Jonidi Jafari, Mehrdad Moslemzadeh, Ali Esrafili, Roshanak Rezaei Kalantary
Summary: The photo-catalytic degradation of chlorobenzene in aqueous solutions using CQD decorated Fe-doped TiO2 immobilized in Glass Fibers was effective and stable, with potential for practical application.
ENVIRONMENTAL RESEARCH
(2022)
Article
Energy & Fuels
Dario F. Zambrano-Mera, Rodrigo Espinoza-Gonzalez, Andreas Rosenkranz, Terry J. Harvey, Tomas Polcar, Paulina Valenzuela, William Gacitua
Summary: The study explores the possibility of enhancing erosion resistance in antireflective coatings through Zr-oxide doping and thermal annealing, and demonstrates that this method can improve the longevity and efficiency of solar panels.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
