Article
Chemistry, Inorganic & Nuclear
Shweta Manchwari, Jaya Khatter, R. P. Chauhan
Summary: This study focuses on the synthesis of TiO2/CdS nanocomposites with different concentrations of precursors and their characterization using various techniques. The results show that TiO2/CdS nanocomposites exhibit excellent photocatalytic performance in the visible range compared to pure TiO2, and they have better degradation efficiency for methylene blue dye compared to rhodamine B dye. The optimum photocatalytic performance is achieved with a 1:1 M ratio of cadmium and sulphur precursors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Huazhen Cao, Chenxi Jia, Huibin Zhang, Guangya Hou, Yiping Tang, Guoqu Zheng
Summary: MoS2/TiO2 composite photocatalysts with visible-light activity were successfully fabricated on titanium substrates via a simple two-step hydrothermal synthesis method. The presence of MoS2 significantly enhances the visible light absorption of the catalyst, leading to a higher photocatalytic oxidation rate of NO2-. The composite exhibited a band gap of about 2.2 eV and good photoactivity, making it a promising material for environmental remediation applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Sergii A. Sergiienko, David M. Tobaldi, Luc Lajaunie, Daniela V. Lopes, Gabriel Constantinescu, Aliaksandr L. Shaula, Nataliya D. Shcherban, Viacheslav I. Shkepu, Jose J. Calvino, Jorge R. Frade, Joao A. Labrincha, Andrei V. Kovalevsky
Summary: MXenes, a family of 2D transition metal carbides, nitrides and carbonitrides, show potential for energy conversion and photocatalysis. While individual MXenes' activity is debated, they are effective co-catalysts. Growing TiO2 on MXene sheets is a mainstream approach, but a study prepared TiO2-MXene composites using different methods.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Inorganic & Nuclear
Ning Wang, Zhentao Zhao, Lin Liu, Jinjuan Xing
Summary: Metal oxide semiconductor, particularly titanium dioxide (TiO2), is widely used in photocatalytic treatment of dye wastewater, but faces challenges such as low sunlight utilization and fast recombination of electron-hole pairs. Through synthesizing muscovite supported TiO2 with tungsten dopant, this study achieved improved separation efficiency of photoinduced carriers and enhanced photocatalytic activity, providing a novel strategy for preparing efficient and stable TiO2-based photocatalytic materials.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Varghese Manappallil Joy, Susmita Dutta, Shaik Feroz, Geetha Devi
Summary: This research investigated the efficiency of TiO2-suspension and TiO2-immobilized photocatalysis for pretreating seawater under natural solar irradiation. Modeling and optimization studies were performed to determine the optimal settings for input parameters in suspension and immobilized systems for organic degradation. The study found that the TiO2-immobilized system achieved a TOC removal efficiency of 51.98% and COD removal efficiency of 57.25%, while the TiO2-suspension system achieved a TOC removal efficiency of 73.47% and COD removal efficiency of 65.48%.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Nhung Thi-Tuyet Hoang, Anh Thi-Kim Tran, Thanh-An Le, D. Duc Nguyen
Summary: The study evaluated the photocatalytic performance of a TiO2-SiO2 film combined with glycerol in degrading methyl orange dye. The optimized conditions resulted in 91% dye removal efficiency, demonstrating the enhanced efficiency of the film in degrading the dye.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
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
Nanoscience & Nanotechnology
Reeti Kumar, Suparna Mukherji
Summary: Graphene oxide-TiO2 nanocomposite (GOT) successfully degraded dichlorvos, an organophosphorus pesticide, under visible irradiation. By modeling and optimizing various variables, the optimal conditions for photocatalytic degradation were determined, with a good correlation between experimental and predicted values.
Article
Environmental Sciences
Karen Yuanting Tang, James Xiaoyuan Chen, Enrico Daniel R. Legaspi, Cally Owh, Ming Lin, Ice Si Yin Tee, Dan Kai, Xian Jun Loh, Zibiao Li, Michelle D. Regulacio, Enyi Ye
Summary: The Au-embedded TiO2 nanofibers showed superior photocatalytic degradation efficiency for organic dye pollutants, attributed to the plasmon resonance absorption of Au nanoparticles and effective charge separation at the Au-TiO2 hybrid heterojunction.
Article
Environmental Sciences
Vu Quang Hieu, Thanh Khoa Phung, Thanh-Quang Nguyen, Afrasyab Khan, Van Dat Doan, Vy Anh Tran, Van Thuan Le
Summary: Photocatalytic activity is an effective solution to address environmental pollution caused by industrial pollutants. The Ti3C2-TiO2 composite, with its unique structure, enhances the efficiency of organic dye degradation and exhibits good stability.
Article
Chemistry, Physical
Petronela Pascariu, Corneliu Cojocaru, Petrisor Samoila, Anton Airinei, Niculae Olaru, Aurelian Rotaru, Cosmin Romanitan, Lucian Barbu Tudoran, Mirela Suchea
Summary: This study reports on the optimization of pure TiO2 and Cu/TiO2 nanocomposite photocatalytic fibrous materials. The presence of copper in the nanocomposite triggers sunlight-driven photocatalysis, leading to significant degradation of Amaranth dye under visible-light irradiation. The Cu/TiO2 nanocomposite exhibits excellent photocatalytic activity, achieving a high color removal efficiency.
SURFACES AND INTERFACES
(2022)
Article
Polymer Science
Yu Ren, Ziyao Zhao, Wenwen Jiang, Guangyu Zhang, Yuxin Tan, Yongyin Guan, Long Zhou, Li Cui, Sung Woong Choi, Mei-Xian Li
Summary: In this study, Y2O3/TiO2-loaded polyester fabric was prepared to enhance the catalytic activity and reuse efficiency of TiO2. The TiO2 in the composite photocatalyst exhibited suitable anatase phase. The Y2O3/TiO2-loaded polyester fabric demonstrated higher photocatalytic performance and self-cleaning effects under visible light compared to pure polyester fabric.
Article
Chemistry, Physical
Xianghui Zeng, Jiaxiang Yuan, Wei Fang, Xuan He, Xing Du, Weixin Li, Lei Zhao, Daheng Wang, Hui Chen
Summary: Due to population growth and environmental issues, the demand for clean water is increasing. Solar driven water evaporation from organic sewage is emerging as a promising technology with high efficiency and low energy consumption. In this study, a composite absorber consisting of carbon foam and nanostructured TiO2 is developed for wastewater purification, with dual functionalities of solar steam generation and photocatalytic degradation. The composite utilizes the entire solar spectrum and exhibits a synergistic incentive effect between photothermal and photocatalytic processes.
SURFACES AND INTERFACES
(2023)
Article
Environmental Sciences
Jiang Li, Qi Su, Huayu Yuan, Lin Zhang, Li'an Hou, Yuehu Wang, Baojun Liu, Bing Wang, Yancheng Li
Summary: The photocatalytic degradation of SMM by P-TiO2 was studied under simulated solar light, showing high efficiency and degradation performance within certain parameter ranges. The method demonstrated promising potential for water treatment and environmental pollution research.
Article
Engineering, Environmental
Xiaolan Zeng, Shuang Shu, Yu Meng, Hongjun Wang, Yan Wang
Summary: The g-C3N4/Cu, N-TiO2 heterojunction photocatalysts were successfully prepared and characterized in this study. The synthesized photocatalyst exhibited excellent degradation performance for sulfamethazine (SMZ) under simulated sunlight irradiation. This research is of great importance for the elimination of sulfonamide antibiotics from wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Wiem Bouali, Muejgan Yaman, Nurgul Seferogu, Zeynel Seferogu
Summary: Novel chemosensors, including coumarin hydrazide, were synthesized and demonstrated the ability to detect cyanide ions through absorption and fluorescence turn-off response. The reaction mechanism between the sensors and the ions was determined through experimental and theoretical studies. The sensors exhibited high detection ability and effectiveness.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Parinaz Abdollahian, Hassan Heidari, Soheila Hassanzadeh, Mohammad Hasanzadeh
Summary: This study successfully synthesized various types of thiolated-graphene quantum dots (GQDs) and utilized them in a one-droplet microfluidic paper-based analytical device for the simultaneous multi-sensing of heavy metal ions. The GQDs were functionalized and stabilized on the surface of hydrophobic fiber-glass, enabling colorimetric chemosensing of ions including iron, copper, cobalt, mercury, chrome, manganese, and nickel. The results were confirmed using fluorescence spectrometry, and the platform showed potential for facile metal ion detection in human urine models and environmental fluids.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
S. L. Barrett, C. Meyer, E. Cwiklik, V Fieglein, M. Burns, J. Guerrero, W. J. Brittain
Summary: Laboratory illumination is strong enough to create a photostationary state (PSS) of amphiphilic azo-benzene compounds in water. The [cis]PSS/[trans]PSS ratios were observed to be 0.33-1.2 in D2O and 0.37-3.8 in dimethyl sulfoxide-d6. ortho-Fluoroazobenzene amphiphiles show higher cis-isomer concentration at equilibrium compared to non-fluorinated compounds due to differences in optical absorption profiles. The kinetics of isomerization were measured using UV-Vis spectroscopy and the ratio of trans-to-cis rates does not directly correlate with the observed PSS. The half-life for PSS formation is 40 minutes for fluorinated compounds and 80 minutes for non-fluorinated compounds.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Jalil Khodayari, Karim Zare, Omid Moradi, Mohammadreza Kalaee, Niyaz Mohammad Mahmoodi
Summary: In this study, an eco-friendly biocomposite (CMC/MIL/CuO) was synthesized and characterized, and its ability to decolorize Acid Blue 92 dye was investigated. The results showed that CMC/MIL/CuO can be used as a suitable photocatalyst for dye decolorization.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Bo Ma, Qian Xu, Huajun Yao, Yalin Chen, Yiyang Wang, Yunfei Yang, Hongfang Shen, Youjun Lu
Summary: This study designed an integrated structure of Cu2O@Au/Cu2O heterostructure particles, which achieved significantly enhanced photocatalytic performance by simultaneously considering the integrated structural characteristics and localized surface plasmon resonance (LSPR) effect. Experimental characterization and theoretical simulation confirmed the three-in-one synergy of the integrated heterostructure, including the LSPR effect of Au nanoparticles, the light scattering based on core-shell heterostructure, and the effective charge separation based on inter-embedded heterostructure. The concept of integrated heterostructure cooperated with LSPR effect provides a new strategy for designing future catalysts.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Robert G. H. Marks, Sarah P. Rockel, Klaus Kerpen, Holger Somnitz, Philipp R. Martin, Maik A. Jochmann, Torsten C. Schmidt
Summary: This study investigated the pH-dependent photolysis of phosphonates in aqueous solutions and analyzed the transformation products. The results showed that the photolysis rate of phosphonates was influenced by pH and light conditions. Furthermore, the carbon kinetic isotope effects varied for different types of phosphonates.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
T. M. Naren Vidaarth, S. Surendhiran, K. S. G. Jagan, S. Savitha, K. S. Balu, A. Karthik, B. Kalpana
Summary: In this study, magnesium oxide nanoparticles were synthesized using plant seed extracts, which exhibited excellent performance in removing dyes from textile water bodies. These nanoparticles also showed strong antibacterial and antioxidant properties.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Mikhail Yu. Ovchinnikov, Vyacheslav A. Antipin, Sergey L. Khursan
Summary: In this study, the recombination of separated ion-radical states (SIRS) in PAPh films was analyzed, and it was found that the contribution of X-SIRS recombination to total luminescence varies with different environments. It was also shown that the recombination of labile SIRS is independent of the nature of the atmosphere. The study theoretically substantiated that SIRS recombination can occur via the transfer of both positive and negative charges, and the efficiency of thermal activation of recombination processes depends on the ratio of radiant and conductive channels of energy transfer.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Sumaira Naeem, Tayyaba Mubashir, Mudassir Hussain Tahir, Jawayria Najeeb, Ahmed Z. Dewidar, Hosam O. El-ansary, Silas Lagat, Anthony Pembere
Summary: This study presents an alternative methodology using machine learning for the selection of novel organic molecules to develop high-performance organic solar cell devices.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
D. Thirumoolan, S. Ragupathy, S. Renukadevi, P. Rajkumar, Rajakumar S. Rai, R. M. Saravana Kumar, Imran Hasan, Mani Durai, Young-Ho Ahn
Summary: In this study, the photodegradation of brilliant green dye was studied in relation to the comparative photocatalytic activity of pure ZnO and Ni-doped ZnO/CSAC. The Ni-doped ZnO/CSAC showed a higher photocatalytic degradation rate under visible light irradiation, suggesting its potential as an effective wastewater treatment material.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Ajmal Khan, Zhidong Chang, Wenjun Li, Xiaohui Ma, Mei Dong, Liang Geng, Ghulam Yasin, Shuaib Khan, Hira Anwar
Summary: Due to its functional structure and tunable shape, 2D zeolitic imidazole framework (ZIFs) have gained significant interest in various fields. In this study, thin ZIF-8 sheets were prepared using a mixed solvent and then delaminated into single layers through physical sonication. These hexagonal sheets exhibited high stability and controlled morphology, and showed excellent performance in dye degradation compared to 3D ZIF-8 crystals.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Vitaly A. Podshibyakin, Evgenii N. Shepelenko, Leonid D. Popov, Tatyana M. Valova, Anton O. Ayt, Lyudmila G. Kuzmina, Anton V. Lisovin, Oleg N. Burov, Mikhail E. Kletskii, Alexander D. Dubonosov, Vladimir A. Bren
Summary: Bifunctional hybrids containing photochromic indolyl(thienyl) diarylethenes and an ionochromic rhodamine moiety connected by a dimethylene spacer were synthesized. These hybrids exhibit absorption at 450-455 nm and fluorescence at 560 nm in toluene. UV light triggers ring-closed non-fluorescent diarylethene formation, which can be reversed under visible light or in the dark. In the presence of H+ cation, a naked eye effect is observed with the opening of the rhodamine-spirolactam ring and a pink-crimson coloration at 561 nm accompanied by intense long-wavelength emission at 586 nm. This process is reversible by exposure to triethylamine, as confirmed by NMR experiments. The light-induced isomerizations and proton-induced transformations were explained using computational methods. Reversible switching of fluorescent properties can be achieved by light irradiation and proton.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Majid Sharifi-Rad, Hazem S. Elshafie, Pawel Pohl
Summary: The study investigated the synthesis of silver nanoparticles using Lallemantia royleana leaf extract, characterized their physico-chemical properties, and evaluated their biopharmaceutical and catalytic applications. The synthesized nanoparticles showed good stability and exhibited higher antioxidant, antimicrobial, anti-inflammatory, anti-arthritic, and cytotoxic activities compared to the leaf extract. These results provide a promising green synthesis route for silver nanoparticles with potential biomedical and catalytic applications.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Meera Moydeen Abdul Hameed, Badr M. Thamer
Summary: Security encoding using photochromism is an effective method for creating authentication substrates. A unique photochromic ink has been developed that emits light continuously under UV rays and darkness. The ink is produced by dispersing lanthanidedoped aluminate nanoparticles in a polymer binder. The resulting composite ink can be used to create transparent films on paper, and the stamped patterns become visible under UV rays, changing from colorless to green.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Monika Lamoria, Rita Kakkar, Marilyn Daisy Milton
Summary: Four novel water-soluble benzimidazolium and bis-benzimidazolium salts with a fluorophore-spacer-receptor design were synthesized and demonstrated to selectively detect Fe3+ ions with large Stokes shifts. The binding mechanism and detection performance were investigated through theoretical and experimental studies.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
