Article
Chemistry, Physical
Zhong-Fei Xu, Chuan-Jia Tong, Ru-tong Si, Gilberto Teobaldi, Li-Min Liu
Summary: By simulating the interplay between different electron polaron hopping regimes, this study investigates the influence of these regimes on the recombination of photogenerated charge carriers in TiO2(101) surface and reveals that fast hopping promotes ultrafast recombination while slower hopping and polaron pinning delay the recombination process. These findings provide insights into the development of photocatalytic strategies based on TiO2.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Kristina Tolic Cop, Dragana Mutavdzic Pavlovic, Tatjana Gazivoda Kraljevic
Summary: Photocatalysis is effective in removing small molecules like anticancer drugs, with faster kinetic rates found at pH 5 and lower drug concentrations. However, the efficiency of photocatalysis can be reduced by the addition of inorganic salts and organic compounds. The degradation mechanism of the drugs involves hydroxyl radicals and singlet oxygen, with potential toxicity of newly formed products needing further study.
Article
Nanoscience & Nanotechnology
Chen Zhang, Zeyu Wang, Minqiang Wang, Jindou Shi, Junnan Wang, Zheyuan Da, Yun Zhou, Youlong Xu, Nikolai V. Gaponenko, Arshad Saleem Bhatti
Summary: This study proposes a convenient method to construct core-shell-structured perovskite materials. CsPbBr3@CsPb2Br5 core-shell micrometer crystals are prepared by controlling the ratio of Cs+/Pb2+ in the precursor and the reaction time. The materials exhibit enhanced optical properties and stability, making them suitable for further postprocessing. Furthermore, CsPbBr3@CsPb2Br5@TiO2 composites are obtained by coating a layer of dense TiO2 nanoparticles on the surfaces of micrometer crystals, which exhibit excellent performance in photocatalysis.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ermelinda Falletta, Anna Bruni, Marta Sartirana, Daria C. Boffito, Giuseppina Cerrato, Alessia Giordana, Ridha Djellabi, Erfan S. Khatibi, Claudia L. Bianchi
Summary: The development of innovative polyurethane-polyaniline/TiO2 modified floating materials for sorption and photodegradation of rhodamine B from water matrix under solar light irradiation was reported. The materials were fabricated with inexpensive and easy approaches and characterized properly. The photoactive floating PANI/TiO2 composites were found to be useful alternatives to common powder photocatalysts for the degradation of cationic dyes.
Article
Environmental Sciences
Ying Jiang, An Liu
Summary: This study used TiO2 and cornstalk biochar to prepare biochar-TiO2 composites for treating methyl orange (MO) in water. The composites prepared using biochar generated at 700℃ and a TiO2/biochar mass ratio of 0.75/1 showed the best performance on MO decolorization and mineralization efficiency. Factors such as low pH, low initial MO concentration, and 1 g/L of composite amount added enhanced MO degradation efficiency. The biochar-TiO2 composites were easier to separate from water compared to pure TiO2, benefitting their recycling after application.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Kaja Spilarewicz, Kamil Urbanek, Anna Jakiminska, Wojciech Macyk
Summary: ZnFe2O4 (ZFO) composites with TiO2 (anatase, rutile) were synthesized and investigated for photocatalytic reduction of CO2 to CO. ZFO was obtained through precipitation from zinc and iron nitrates(V) precursors, followed by hydrothermal treatment, and its physicochemical properties were characterized. The results revealed that the ZFO/TiO2 systems formed type-I heterojunctions, which led to enhanced photoactivity of the composites. Furthermore, choosing anatase as the TiO2 polymorph favored higher yields of CO production.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Physical
Raira da Cunha, Walker Vinicius Ferreira do Carmo Batista, Hanna Leijoto de Oliveira, Ana Claudia dos Santos, Patricia Moreira dos Reis, Keyller Bastos Borges, Patricia Benedini Martelli, Clascidia Aparecida Furtado, Honoria de Fatima Gorgulho
Summary: The study focused on the production of carbon xerogel/TiO2 nanocomposites using K2TiF6 as a TiO2 precursor through sol-gel polymerization of resorcinol and formaldehyde, and investigated the effects of different starting C/Ti molar ratios on their morphology, surface properties, and photocatalytic activity. The composites exhibited heterogeneous structure with two phases for the introduction of TiO2, showing potential for efficient decomposition of acetaminophen in aqueous medium.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Applied
P. Rychtowski, B. Tryba, D. Baranowska, B. Zielinska, H. Nishiguchi, M. Toyoda
Summary: Reduction of TiO2 has been studied under different conditions. The addition of ammonia solution followed by hydrothermal treatment and calcination in Ar resulted in the formation of surface defects such as hole traps and oxygen vacancies in the reduced TiO2. Heat-treatment under hydrogen gas produced the highest amount of reduced Ti3+ centers, leading to improved water splitting and enhanced photocatalytic properties. Hydrogen was found to be a stronger reducing agent than ammonia gas.
Article
Environmental Sciences
Claudia Castaneda, Jose J. Martinez, Laura Santos, Hugo Rojas, Sameh M. Osman, Ricardo Gomez, Rafael Luque
Summary: The interest in removing emerging contaminants has increased in the past decade. The study focused on the synthesis, characterization, and photocatalytic evaluation of TiO2-F, CuO/TiO2-F, and NiO/TiO2-F composite materials for degrading caffeine using UV radiation. While the fluorination of titanium dioxide improved the physicochemical properties and photocatalytic performance, incomplete mineralization was observed.
Article
Chemistry, Physical
Yonghui Zhang, Baoji Miao, Qiuling Chen, Zhiming Bai, Yange Cao, Basandorj Davaa
Summary: In this study, TiO2-montmorillonite (MMT) composites were synthesized hydrothermally under variable conditions, characterized, and evaluated for photocatalytic activity. The composite with a TiO2 mass ratio of 30 wt%, prepared at a pH of 6, a reaction temperature of 160 degrees C, and a dwelling time of 24 h showed the highest methylene blue removal efficiency of 95.6%.
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
Nanoscience & Nanotechnology
Weichao Li, Liexing Zhou, Linkun Xie, Kunyong Kang, Juan Xu, Xijuan Chai
Summary: The study successfully fabricated a composite material consisting of g-C3N4 nanolayer/N, Gd, and Fe co-doped TiO2, and demonstrated that adjusting the amount of g-C3N4 nanosheets can enhance the photocatalytic performance of the composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Pavel Tkachenko, Victoria Volchek, Anna Kurenkova, Evgeny Gerasimov, Pavel Popovetskiy, Igor Asanov, Irina Yushina, Ekaterina Kozlova, Danila Vasilchenko
Summary: A new protocol for depositing platinum oxide particles onto TiO2 semiconductor using controllable hydrolysis of Pt(IV) hydroxide was developed. The prepared PtOx/TiO2 photocatalysts exhibit good activity for hydrogen production from aqueous ethanol and glucose solutions. The catalysts show high stability and efficiency, with even a low platinum content achieving significant hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Polymer Science
Olya Stoilova, Nevena Manolova, Iliya Rashkov
Summary: The electrospinning technique was successfully used for the fabrication of PMMA fibers loaded with TiO2, allowing for tailored designs and properties by adjusting material ratios and processing conditions. Incorporating TiO2 affected the morphology and properties of the composites, with the inorganic photocatalyst influencing surface characteristics. Moreover, the PMMA/TiO2 composites exhibited promising photocatalytic efficiency for future water treatment membrane applications.
Article
Chemistry, Physical
Rui Huang, Jun Zhang, Zhenbiao Dong, Hualin Lin, Sheng Han
Summary: In this study, honeycomb structure titanium dioxide grafted with carbon fiber composites (CF/TiO2) is synthesized for flexible supercapacitors. The conductivity of TiO2 is enhanced by introducing oxygen defects, resulting in a specific capacitance of 115.2 F g-1 at 1200 mA g-1. The CF/TiO2 material exhibits excellent cycling stability with a capacitance retention of 98.37% after 10000 cycles, and it shows good flexibility and high energy density in testing.
JOURNAL OF POWER SOURCES
(2022)
Article
Spectroscopy
S. Li, Li Wang, J. Hao, L. Wang, Y. -J. Tong, Z. -Q. Fu, A. -P. Zhang
JOURNAL OF APPLIED SPECTROSCOPY
(2017)
Article
Chemistry, Multidisciplinary
Hongli Liang, Bing Wang, Hailong Wang, Miao Yu, Lingna Zheng, Meng Wang, Aiping Zhang, Weiyue Feng
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2018)
Article
Spectroscopy
Sha Li, Hongyuan Shang, Fasheng Liu, Min Ma, Aiping Zhang
SPECTROSCOPY LETTERS
(2018)
Article
Chemistry, Multidisciplinary
Wenting Xue, Zhenghan Di, Ya Zhao, Aiping Zhang, Lele Li
CHINESE CHEMICAL LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Hongyuan Shang, Min Ma, Fasheng Liu, Zhe Miao, Aiping Zhang
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2019)
Review
Biochemistry & Molecular Biology
Jinxia Li, Linlin Chen, Liang Yan, Zhanjun Gu, Zhaofang Chen, Aiping Zhang, Feng Zhao
Article
Integrative & Complementary Medicine
Liwen Han, Haotian Kong, Fasheng Liu, Xiaobin Li, Shanshan Zhang, Xuanming Zhang, Yong Wu, Hua Yang, Aiping Zhang, Kechun Liu
EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE
(2019)
Review
Chemistry, Multidisciplinary
Linlin Chen, Jinxia Li, Zhaofang Chen, Zhanjun Gu, Liang Yan, Feng Zhao, Aiping Zhang
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2020)
Article
Oncology
Min Ma, Lu Cheng, Anyi Zhao, Huilan Zhang, Aiping Zhang
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
(2020)
Article
Biochemistry & Molecular Biology
Zhang Huilan, Wang Juan, Zhang Wen, Han Dong, Zhang Aiping
Summary: The paper investigated the preparation and characterization of folic acid-targeted composite materials, which exhibited good water solubility and dispersion, enabling the photokilling of cancer cells. Additionally, the composite material induced cell apoptosis through photocatalysis, providing theoretical support for the photodynamic development of TiO2.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2021)
Article
Electrochemistry
Huilan Zhang, Lu Cheng, Hongyuan Shang, Wen Zhang, Aiping Zhang
Summary: This study developed a simply sensitive sensor based on RGO-TiO2/GCE for electrochemical determination of the antimalarial drug HCQ. The sensor showed excellent electrocatalytic activity for HCQ and was successfully applied for HCQ determination in pharmaceutical samples.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Yue You, Jinxia Li, Linlin Chen, Mei Wang, Xinghua Dong, Liang Yan, Aiping Zhang, Feng Zhao
Summary: Bi2Se3 particles exhibit excellent photothermal conversion efficiency and biocompatibility, leading to enhanced autophagy in cancer cells under near infrared irradiation. The activation of stress-related signaling pathways and the involvement of autophagy are crucial in the photothermal killing effect of Bi2Se3, providing deeper insights into photothermal materials for cancer treatment.
Article
Oncology
Wen Zhang, Meili Ding, Huilan Zhang, Hongyuan Shang, Aiping Zhang
Summary: This study introduces a novel MoS2/PDA-TPP nanocomposite loaded with chemotherapy drug DOX for dual-response tumor microenvironment therapy, utilizing tumor-specific mitochondria accumulation and photothermal therapy to enhance anti-tumor effects. The nanoplatform demonstrates pH-responsive drug release under acidic TME conditions and triggers mitochondrial-dependent apoptosis through ROS production and MMP reduction. Additionally, hyperthermia induced by PTT effectively causes tumor cell death without severe inflammation to adjacent tissues, providing a promising strategy to overcome multidrug resistance in cancer treatment.
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
(2022)
Article
Pharmacology & Pharmacy
Min Ma, Lu Cheng, Ling Wang, Xingxing Liang, Linjiao Yang, Aiping Zhang
Summary: This study investigated the effect of TiO2/N-succinyl-chitosan composite (TiO2/NSCS) photodynamic therapy (PDT) on the activation of photosensitizer under various light sources. The results showed that TiO2/NSCS had a strong photokilling effect on glioma cells (U251), and the killing effect was positively correlated with concentration and irradiation time. Both UVA and visible light could excite TiO2/NSCS, leading to significant cell killing effects on U251 cells by inducing apoptosis. TiO2/NSCS could be a potential photosensitizer in PDT.
BRAZILIAN JOURNAL OF PHARMACEUTICAL SCIENCES
(2022)
Review
Chemistry, Multidisciplinary
Jinxia Li, Linlin Chen, Haoran Su, Liang Yan, Zhanjun Gu, Zhaofang Chen, Aiping Zhang, Feng Zhao, Yuliang Zhao
Article
Biochemistry & Molecular Biology
Girgis Obaid, Menitte Eroy, Jie Zhao, Shazia Bano, Mari Mino-Kenudson, Tayyaba Hasan
Summary: The presence of desmoplasia in pancreatic ductal adenocarcinoma (PDAC) is associated with poor treatment outcomes and reduced drug delivery. By analyzing collagen subtypes in PDAC tumors following different treatment regimens, immunofluorescence profiling can predict long-term survival and tumor growth inhibition. This information can aid in personalized treatment and improve patient survival.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Fatemeh Malekpour, Rashin Bahrami, Mahshid Hodjat, Neda Hakimiha, Behnam Bolhari, Aidin Sooratgar, Soheil Niavarzi
Summary: This study investigated the effect of photobiomodulation (PBM) therapy using an 808 nm diode laser on cellular modulation mechanisms in regenerative endodontic procedures (REPs). The results showed that PBM treatment significantly increased cell viability and migration, and enhanced the release of TGF-131 from dentin.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Pranathi Tata, Ramakrishnan Ganesan, Jayati Ray Dutta
Summary: Thin film coatings with potent antibacterial properties are widely used in medical devices, frequently touched surfaces, and food packaging. However, achieving antibacterial performance under both light and dark conditions remains a challenge. In this study, we successfully prepared AgBr-coated ZnO nanorod thin film architecture using a unique surfactant-mediated solution-phase spin-coating approach. The resulting structures showed dual functionality as antimicrobial agents and photosensitizers, effectively enhancing the visible-light photodisinfection efficacy of ZnO nanorods. The concentration of the surfactant-based precursor solution could be modulated to control the AgBr content. Additionally, components like urea and lactic acid were found to enhance the photocatalytic efficiency of the structures.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2024)
