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
Chemistry, Multidisciplinary
Christopher O'Rourke, Andrew Mills
Summary: Photoinduced absorption spectroscopy (PIAS) is used to investigate the kinetics of P25 TiO2 in mesoporous film form during the photocatalysed oxidation of 4-chlorophenol (4CP). The results reveal valuable information on the direct kinetics and mechanism of photogenerated holes in powdered photocatalysts.
CHEMICAL COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Longbo Jiang, Shaoyu Zhou, Jinjuan Yang, Hou Wang, Hanbo Yu, Haoyun Chen, Yanlan Zhao, Xingzhong Yuan, Wei Chu, Hui Li
Summary: TiO2, a widely used semiconductor photocatalyst in the field of ultraviolet photocatalysis, faces challenges like wide bandgap and fast recombination of charge carriers, affecting its solar light utilization. Enhancing the overall solar spectrum utilization of TiO2, especially in the near-infrared region, is crucial for efficient solar energy conversion. Strategies such as hybridization with other semiconductors and bandgap engineering are discussed to improve NIR light capture of TiO2-based photocatalysts in this review, along with their applications in various fields and future development prospects.
ADVANCED FUNCTIONAL MATERIALS
(2022)
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
Engineering, Chemical
Murilo Tomazini Munhoz Moya, Leandro Goulart de Araujo, Fernando Silva Lopes, Antonio Carlos Silva Costa Teixeira
Summary: This study aims to evaluate and compare the efficiency of TiO2 P25 and TiO2 modified with carbon (C-TiO2 Kronos vlp 7000) in the photocatalytic degradation of atrazine (ATZ) in aqueous systems. TiO2 P25 showed high removal rates of ATZ but low mineralization, while C-TiO2 Kronos vlp 7000 had lower removal rates but better ATZ mineralization. Intermediate compounds formed during the photocatalytic process were identified for each material.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2023)
Article
Engineering, Environmental
Oumaima Mertah, Almudena Gomez-Aviles, Abdelhak Kherbeche, Carolina Belver, Jorge Bedia
Summary: Solar-light-assisted photocatalytic activation of peroxymonosulfate (PMS) using TiO2@CuCo2O4 heterostructures was found to be an efficient method for degradation of sulfamethoxazole (SMX) in water. The heterostructure with 20% of TiO2 achieved the highest SMX removal, and sulfate, hydroxyl and superoxide radicals were found to be the main species involved in the degradation reaction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Mariana de Souza Pereira, Rafaela Pereira Mendes, Gecica Cardoso Bellettini, Renata Martins Benetti, Fabio Elyseu, Adriano Michael Bernardin
Summary: TiO2 is the most commonly used semiconductor for mineralization of organic compounds in heterogeneous photocatalysis. The discoloration of an organic dye is the commonly used technique to determine the photocatalytic performance of semiconductors, but there is no consensus on the procedure for dye discoloration. In this study, the ISO 10678:2010 standard was used as a guide to test the performance of TiO2 (P25) for the discoloration of methylene blue under UV light. The parameters studied were exposure time, dye concentration, and UV light intensity. The results showed that UV light intensity was the only factor affecting photocatalysis.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Environmental Sciences
Mohammad Hossein Sayadi, Shahin Homaeigohar, Ayoob Rezaei, Hossein Shekari
Summary: A TiO2/graphene (G) heterostructure doped with Bi and SnO2 nanoparticles was synthesized and used for photocatalytic degradation of pentachlorophenol (PCP) under visible light irradiation. The nanocomposite showed promising photodegradation efficiency due to the generation of active radicals. Optimizing parameters such as pH, catalyst dosage, and PCP concentration improved the photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Chemical
Aleksandra Piatkowska, Kacper Szymanski, Sylwia Mozia
Summary: Crude TiO2 derived from sulfate technology was used to prepare novel solar light active photocatalysts with various sulfur content. The effect of sulfur on the physicochemical properties of the photocatalysts and the efficiency of ketoprofen photodecomposition under simulated solar light were investigated. The results showed that sulfur content within a certain range played a key role in the photoactivity of the photocatalysts, with the optimal sulfur content being - 0.9 wt%. The photocatalytic activity mainly originated from visible light photocatalysis, with some contribution from UV photocatalysis.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Guru Karthikeyan Thirunavukkarasu, Jana Bacova, Olivier Monfort, Ewa Dworniczek, Emil Paluch, Muhammad Bilal Hanif, Sajid Rauf, Monika Motlochova, Jan Capek, Karol Hensel, Gustav Plesch, Grzegorz Chodaczek, Tomas Rousar, Martin Motola
Summary: This study compared two TiO2 nanopowders in terms of toxicity, photoinduced antimicrobial and antibiofilm properties, and photocatalytic activity. TiAP showed higher efficiency in photocatalysis and bacterial inactivation compared to P25.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Manuel Penas-Garzon, Wael H. M. Abdelraheem, Carolina Belver, Juan J. Rodriguez, Jorge Bedia, Dionysios D. Dionysiou
Summary: Novel carbon microspheres supported TiO2 nanoparticles were prepared for pharmaceutical degradation in water. Lignin, a biomass byproduct, was transformed into carbon microspheres and coated with TiO2, resulting in superior catalytic performance. The photocatalyst showed efficient degradation of pharmaceuticals under solar light.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Sandra Sakalauskaite, Deimante Vasiliauske, Emilija Demikyte, Rimantas Daugelavicius, Martynas Lelis
Summary: Visible light activated TiO2 powder can partially disinfect bacteria under specific conditions, causing damage to the bacterial metabolism and leading to inactivation. Understanding the effects of light treatment on bacteria helps explore new bacterial inactivation technologies.
Article
Chemistry, Applied
Taiebeh Shamsi, Ali Amoozadeh
Summary: This study describes a novel method of depositing silver on the surface of titanium dioxide to create a new photocatalyst, and investigates its performance in oxidizing benzyl alcohol under visible light and sunlight. The properties of the photocatalyst were comprehensively studied using various analytical techniques.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Junlei Zhang, Hengcong Tao, Shanshan Wu, Jingling Yang, Mingshan Zhu
Summary: A direct Z-scheme catalyst of TiO2(P25)-C3N5 with enhanced structural defects was designed, which showed excellent activity and durability in NO photooxidation under visible light. The main products of NO photooxidation in the system involving TiO2-C3N5 were identified as NO2 and NO3. Moreover, TiO2-C3N5 exhibited better activity and durability for NO photooxidation under higher relative humidity compared to P25 and C3N5.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Oumaima Mertah, Almudena Gomez-Aviles, Amine Slassi, Abdelhak Kherbeche, Carolina Belver, Jorge Bedia
Summary: This study successfully doped copper sulfide with different amounts of Co2+ ions and combined it with TiO2 using a one-step hydrothermal process. The synthesized Co-CuS@TiO2 heterostructures showed improved charge transport and restricted recombination of photoexcited electrons and holes compared to bare CuS. Experimental characterizations and theoretical calculations were conducted to systematically examine the properties of the Co-CuS@TiO2 samples. Photocatalytic degradation tests using sulfamethoxazole degradation as a model revealed enhanced performance after cobalt doping, with the heterostructure doped with 3% Co exhibiting the highest degradation rate constant of 0.0216 min-1. The enhanced degradation is attributed to increased light absorption and more efficient charge transfer and separation. A possible mechanism for the photocatalytic degradation of sulfamethoxazole was proposed. This study presents a novel strategy for preparing potential photocatalysts for the elimination of emerging pollutants.
CATALYSIS COMMUNICATIONS
(2023)
Article
Biochemical Research Methods
H. Rahnama, A. Sattarzadeh, F. Kazemi, N. Ahmadi, F. Sanjarian, Z. Zand
ANALYTICAL BIOCHEMISTRY
(2016)
Article
Chemistry, Inorganic & Nuclear
Mohammad Mahdi Najafpour, Seyedeh Maedeh Hosseini, Zahra Zand
DALTON TRANSACTIONS
(2016)
Article
Chemistry, Multidisciplinary
Mohammad Mahdi Najafpour, Saeideh Salimi, Zahra Zand, Malgorzata Holynska, Tatsuya Tomo, Jitendra Pal Singh, Keun Hwa Chae, Suleyman I. Allakhverdiev
NEW JOURNAL OF CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Zahra Zand, Mohammad Mahdi Najafpour, Robabeh Bagheri, Zhenlun Song
NEW JOURNAL OF CHEMISTRY
(2018)
Article
Chemistry, Multidisciplinary
Mohammad Mahdi Najafpour, Sepideh Madadkhani, Somayyeh Akbarian, Zahra Zand, Malgorzata Holynska, Mohsen Kompany-Zareh, Tomo Tatsuya, Jitendra Pal Singh, Keun Hwa Chae, Suleyman I. Allakhverdiev
NEW JOURNAL OF CHEMISTRY
(2018)
Article
Chemistry, Physical
Gouhar Azadi, Zahra Zand, Younes Mousazade, Robabeh Bagheri, Junfeng Cui, Zhenlun Song, Rahman Bikas, Krzysztof Wozniak, Suleyman I. Allakhverdiev, Mohammad Mahdi Najafpour
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Multidisciplinary
Zahra Zand, Payam Salimi, Mohammad Reza Mohammadi, Robabeh Bagheri, Petko Chernov, Zhenlun Song, Holger Dau, Mikaela Gorlin, Mohammad Mahdi Najafpour
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Review
Chemistry, Inorganic & Nuclear
Mohammad Mandi Najafpour, Ivelina Zaharieva, Zahra Zand, Seyedeh Maedeh Hosseini, Margarita Kouzmanova, Malgorzata Holynska, Ionut Tranca, Anthony W. Larkum, Jian-Ren Shen, Suleyman Allakhverdiev
COORDINATION CHEMISTRY REVIEWS
(2020)
Article
Chemistry, Physical
Somayeh Mehrabani, Rahman Bikas, Zahra Zand, Younes Mousazade, Suleyman I. Allakhverdiev, Mohammad Mahdi Najafpour
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Multidisciplinary Sciences
Mojtaba Amini, Younes Mousazade, Zahra Zand, Mojtaba Bagherzadeh, Mohammad Mahdi Najafpour
Summary: Ultra-small and highly dispersive iron oxide hydroxide has been characterized and shown to exhibit high efficiency and stability in chemical reactions, making it a promising catalyst with potential applications in various fields. The compound is effective for alcohol oxidation, organic sulfide oxidation, and alkene epoxidation reactions, and demonstrates good catalytic activity in water oxidation.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Parvin Eskandari, Zahra Zand, Foad Kazemi, Moosa Ramdar
Summary: This study focused on the photocatalytic activity of one-dimensional CdS@TiO2 core-shell nanocomposites under visible LED irradiation. The synthesized material showed enhanced photoactivity and potential for promising visible light-driven photocatalysts in organic transformations.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Mohammad Saleh Ali Akbari, Zahra Zand, Pavlo Aleshkevych, Zvonko Jaglicic, Mohammad Mahdi Najafpour
Summary: This article presents the progress in molecular catalyst design for oxygen-evolution reaction (OER) and proposes a new method for detecting catalysts. Experimental results demonstrate the necessity of in-depth investigation to rule out heterogeneous catalysts formed in the presence of homogeneous OER (pre)catalysts, and have significant implications for the entire chemistry community.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Hadi Feizi, Seyedeh Maedeh Hosseini, Zahra Zand, Mohammad Mahdi Najafpour
Summary: Recent studies have shown the important role of Mn(III) ions in the structure of Mn(IV) oxide in the oxygen-evolution reaction (OER). However, the challenge lies in using a stable and perdurable force to induce Mn(III) ions during OER.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Analytical
Mojgan Alighardashi, Ali Assadi, Foad Kazemi, Zahra Zand, Mohammad Reza Mehrasbi
Summary: In this study, Fe3O4/SiO2/TiO2 magnetic nanoparticles were synthesized for the removal of MTBE from water. The combined process of UV/O-3/Fe3O4/SiO2/TiO2 showed better performance in degrading MTBE compared to separate processes.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Zahra Zand, Jitendra Pal Singh, Robabeh Bagheri, Junfeng Cui, Keun Hwa Chae, Zhenlun Song, Mohammad Mahdi Najafpour
MATERIALS ADVANCES
(2020)
Article
Chemistry, Organic
Geeta Devi Yadav, Pooja Chaudhary, Balaram Pani, Surendra Singh
Summary: Chiral transition metal complexes with privileged ligands are efficient catalysts for various asymmetric organic transformations. Transition metal complexes of C1-symmetric pyrrolidine-based ligands have been widely used in asymmetric organic reactions. However, a comprehensive review article on the transition metal complexes of chiral C1-symmetric pyrrolidine-based ligands derived from (L)-proline has not been published.
TETRAHEDRON LETTERS
(2024)
