Article
Chemistry, Physical
Yingxue Sun, Chunling Bo, Zhijjie Cheng, Xinyi Zhang, Jianjun Liu, Lingyu Piao
Summary: This work proposes a novel tandem reaction pathway for the photocatalytic oxidation of methane to methanol, achieving high activity and selectivity. The study demonstrates that hydroxyl radicals and hydroperoxyl radicals catalyze the oxidation of methane to form methanol on a photocatalyst. This method shows high productivity and selectivity under mild conditions.
Article
Chemistry, Multidisciplinary
Wanderson C. de Souza, Bianca T. Matsuo, Priscilla M. Matos, Jose Tiago M. Correia, Marilia S. Santos, Burkhard Koenig, Marcio W. Paixao
Summary: N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides can be converted into natural product inspired scaffolds via iridium photocatalyzed intramolecular [2+2] photocycloaddition, allowing the synthesis of a variety of tetrahydrocyclobuta[c]quinolin-3(1H)-ones with high molecular complexity.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Elena Fakhrutdinova, Olesia Reutova, Liubov Maliy, Tamara Kharlamova, Olga Vodyankina, Valery Svetlichnyi
Summary: In this study, the use of pristine and Pt-modified dark titanium dioxide for photocatalytic hydrogen evolution was investigated. The samples demonstrated high photocatalytic efficiency under soft UV and blue LED irradiation. The effects of thermal treatment and platinum modification on the dark titania materials were studied, and optimal experimental conditions were determined.
Article
Chemistry, Physical
Rulin Sun, Ruimin Wang, Xinlu Liu, Xiao Chen, Li Che, Hongjun Fan, Xueming Yang, Qing Guo
Summary: This study experimentally demonstrated that surface adsorbates not only facilitate the diffusion of H atoms on Pt-clut/R-TiO2(110) surface, but also directly participate in H-2 production, providing new insights into H-2 production with Pt/TiO2 catalysts.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Review
Chemistry, Physical
Ali Esrafili, Maryam Salimi, Ahmad Jonidi Jafari, Hamid Reza Sobhi, Mitra Gholami, Roshanak Rezaei Kalantary
Summary: This systematic review focuses on the synthesis, properties, and applications of Pt-based TiO2 catalysts, with a special emphasis on energy and environmental applications. The study highlights the improved photocatalytic activity and electron-hole pair separation efficiency achieved by introducing the noble metal platinum into the TiO2 structure.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Ceramics
Xiaotong Liu, Ya Chen, Baolin Zhu, Shoumin Zhang, Weiping Huang
Summary: 3-dimensional TiO2 nanoflowers were successfully synthesized via a hydrothermal method with MoS2 and Pt modifiers to enhance photocatalytic activity. MoS2/TiO2-NF (2.0%) showed the best performance for water splitting, while Pt-MoS2/TiO2-NF (2.0%) exhibited enhanced and recyclable photocatalytic activity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Man Zhou, Suting Xue, Qin Feng, Xuan Liang, Wangchen Wu, Yanli Zhou, Minmin Ni, Xudong Zheng, Song Xu, Jin Zhao, Zhongyu Li
Summary: By using carbonized liquid crystals (CLCs) to protect platinum nanoparticles (Pt NPs) on TiO2, the aggregation and deactivation issues of ultra-small Pt NPs can be effectively avoided. CLCs changed the contact type of Pt/TiO2 from "face-contact" to "point-contact," which was consistent with simulation results. Under the protection of CLCs, the visible-light photocatalytic H2 production rate of C-Pt/TiO2 showed a 1.75-fold enhancement compared to bare Pt/TiO2 (26.73 mmol g-1 h-1 vs. 15.26 mmol g-1 h-1). Importantly, the marriage of CLCs and traditional Pt/TiO2 photocatalyst achieved long-term stability, maintaining 87% of the original rate at the sixth cycle.
MATERIALS TODAY ENERGY
(2023)
Article
Environmental Sciences
Abdollah Ostovar, Afsanehsadat Larimi, Zhi Jiang, Marzieh Lotfi, Cyrus Ghotbi, Farhad Khorasheh
Summary: Many researchers have reported the modification of photocatalysts to enhance their adsorption and photocatalytic activity in the oxidative desulfurization of liquid fuels. In this study, Pt-decorated carbon-doped TiO2 nanoparticles were synthesized and used for photocatalytic oxidative desulfurization of DBT in a simulated liquid fuel. The synthesized photocatalysts exhibited high removal efficiency of DBT under visible-light irradiation, ambient pressure, and a reaction temperature of 40 degrees C.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Jiangrong Xiao, Chi Chen, Shengtao Chen, Haoran Liu, Tianyou Peng
Summary: A facile and robust method of co-decorating Pt/MnOx dual cocatalysts on sea-urchin-like anatase TiO2 microspheres (AMS) is reported to significantly improve the CO2 reduction reaction (CO2RR) activity and CH4 product selectivity. The synergistic effect of dual cocatalysts on AMS leads to a significantly improved CO2RR performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Physical
Songying Qu, Hao Wu, Yun Hau Ng
Summary: Hydrogen peroxide is a crucial chemical attracting attention for energy and environmental applications. The environmentally friendly solar-driven production of hydrogen peroxide, which only requires water, oxygen, and light energy, has gained the most attention. The rational design of functional photo-responsive catalysts promotes hydrogen peroxide production in photo(electro)catalytic approaches. This review systematically summarizes strategies for these catalysts and discusses prevailing hypotheses, state-of-the-art catalysts, critical challenges, and perspectives to enhance comprehension and promote interest in sustainable hydrogen peroxide production.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Francesc Molins, Karsten Kuepper, Elke Schweers
Summary: The effects of reaction parameters on H-2 production from ethanol photocatalysis in the gas phase have been investigated, showing an evolving photocatalytic activity and sensitivity to ethanol molar fraction. H-2:AcH ratios are highly sensitive to reaction conditions, reaching a maximum of 1.8 at low reactant flows. UV light is converted to H-2 with an efficiency of nearly 3%.
Article
Chemistry, Multidisciplinary
Neha Dagar, Swati Singh, Sudipta Raha Roy
Summary: A mild and versatile cerium-mediated decarboxylative strategy was developed for the synthesis of quaternary oxindoles and benzimidazo[2,1-a]isoquinolin-6(5H)-ones via photoinduced-LMCT. This procedure uses inexpensive and feedstock carboxylic acids as alkyl radical surrogates and aerial molecular oxygen as the terminal oxidant. The protocol showed viability with a wide range of alkyl carboxylic acids and allows the late-stage modification of pharmaceutically-important acids. Mechanistic studies revealed the reaction to follow radical pathway, while the decarboxylative event was studied by in situ FTIR.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Afshin Nabiyan, Johannes Bernhard Max, Christof Neumann, Magdalena Heiland, Andrey Turchanin, Carsten Streb, Felix Helmut Schacher
Summary: A novel core-shell design based on TiO2 core functionalized with a polyampholytic shell has been developed, achieving high visible-light-driven H-2 generation by facilitating electronic interactions between the photosensitizer and the core. Further catalytic enhancement was made possible by introducing [Mo3S13](2-) cluster anions as hydrogen-evolution cocatalyst.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Dan Liu, Ismail Nadia, Chaohe Fang, Kuan He, Binghui Ge, Hailong Chen, Zhuo Chen
Summary: This study demonstrates the photo-enhanced catalytic activity for the hydrogenation of nitrobenzene. Compared to the counterpart without light irradiation, the catalytic reaction rate significantly improves under simulated sunlight, achieving better catalytic performance. Further mechanism investigations reveal that light illumination promotes the activation of hydrogen and nitrobenzene molecules, resulting in high-efficiency hydrogenation.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Physics, Applied
Hiroshi Nakajima, Toshiaki Tanigaki, Takaaki Toriyama, Mahito Yamamoto, Hidekazu Tanaka, Yasukazu Murakami
Summary: The study reports the electrostatic potential distribution at the Pt/TiO2 interface using electron holography, revealing a decrease in potential at TiO2 due to electron transfer from TiO2 to Pt. The decrease in potential is attributed to the difference in work functions between Pt and TiO2, highlighting the utility of electron holography in probing nanoscale interfaces.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
M. Thiruppathi, K. Selvakumar, M. Arunpandian, K. Thirumalai, C. Ramalingan, M. Swaminathan, E. R. Nagarajan
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2019)
Article
Chemistry, Inorganic & Nuclear
K. Gowthami, B. Krishnakumar, Abilio J. F. N. Sobral, G. Thirunarayanan, M. Swaminathan, R. Siranjeevi, T. Rajachandrasekar, I Muthuvel
JOURNAL OF CLUSTER SCIENCE
(2020)
Article
Chemistry, Analytical
K. Selvakumar, A. Raja, M. Arunpandian, P. Rajasekaran, M. Swaminathan
Summary: The study successfully synthesized a natural hematite ore incorporated ZnO composite material (FOZ) using hydrothermal method, and characterized it through a series of methods. FOZ showed excellent photocatalytic performance under visible light, exhibiting good degradation efficiency towards ciprofloxacin and methylene blue, with outstanding recyclability even after multiple cycles of photocatalytic reaction.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
P. Suppuraj, K. Thirumalai, S. Parthiban, M. Swaminathan, I. Muthuvel
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Annamalai Raja, Palani Rajasekaran, Karuppaiah Selvakumar, Mukannan Arivanandhan, Sultan Asath Bahadur, Meenakshisundaram Swaminathan
Article
Chemistry, Multidisciplinary
Murugan Kumaresan, Vadivel Saravanan, Ponnusamy Sami, Meenakshisundaram Swaminathan
RESEARCH ON CHEMICAL INTERMEDIATES
(2020)
Article
Chemistry, Multidisciplinary
K. Sakthi Velu, Manawwer Alam, Naushad Ahmad, S. Esakkimuthu, G. Vignesh Kumar, S. Mohandoss, J. Anandha Raj, K. Selvam, Golap Kalita, T. Stalin
Summary: This article discusses the use of graphene oxide sheet and methylammonium lead iodide as a photosensitizer to modify the surface of perovskite solar cell photoanodes. Various analytical techniques were employed to study GO-MAPbI(3), demonstrating its potential in enhancing power conversion efficiency.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Multidisciplinary
T. M. Usha Mary, M. Swaminathan
Summary: The biodegradation of thiocyanate by free and immobilized Bacillus brevis was studied. It was found that immobilized cells had a higher rate of thiocyanate degradation. Cells on lignite carbon matrix showed higher efficiency compared to cells on alginate beads. Immobilization increased the bacteria's tolerance to the toxic chemical. Immobilized Bacillus brevis on lignite carbon achieved degradation of 100 ppm thiocyanate in 20 hours. This technique is valuable for wastewater treatment due to its reduced cost and simplicity.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Ramesh Sivasamy, Katherine Paredes-Gil, Jerald Vijay Ramaclus, Edgar Mosquera, Selvam Kaliyamoorthy, Khalid Mujasam Batoo
Summary: This paper provides a systematic understanding of the sandwich-like GaN/MoSe2/GaN heterostructure nanosheet and explores its geometrical structures and electronic, optical, and thermodynamical properties. The results show that the heterostructure exhibits good optical characteristics and stability, making it suitable for applications in photovoltaic, photocatalytic, and optical devices.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Analytical
Bo-Tau Liu, Dillirani Nagarajan, Selvam Kaliyamoorthy, Balamurugan Rathinam
Summary: Ciprofloxacin (CIP), a commonly used antibiotic, poses potential risks to humans and the environment. In order to monitor CIP in environmental samples conveniently and effectively, researchers have designed a fluorescent receptor based on a zirconium-based metal organic framework. The synthesized receptor shows promising fluorescence detection capabilities for CIP.
Article
Biotechnology & Applied Microbiology
S. Balasubramaniyan, T. M. Usha Mary, M. Swaminathan
Summary: Quinoline-containing effluent from pharmaceuticals, dyes and pesticide industries pollutes the environment and affects human health due to its toxicity and nauseating odor. Biotreatment using isolated Bacillus subtilis immobilized on activated coconut shell carbon proves to be an effective method for degrading quinoline, even at high concentrations of 300 ppm, within a shorter time period compared to free cells. The stability and recyclability of immobilized cells make them suitable for the mineralization of heterocyclic organics in wastewater.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Review
Engineering, Chemical
Balamurugan Rathinam, Bo-Tau Liu, Dillirani Nagarajan, Selvam Kaliyamoorthy
Summary: This paper categorizes and analyzes the performance of tin ion probes, discussing problems, challenges, and future research directions.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Murugavelu Marimuthu, Balachander Ramalingam, Balachandran Subramanian, Wei Song, Selvam Kaliyamoorthy
Summary: In this study, Ag-Au/SiO2 bimetal nanocomposites were used as a novel heterogeneous catalyst for microwave-assisted stereoselective synthesis of beta-amino carbonyl in Mannich reaction. The nanocomposites were prepared by loading Ag-Au bimetal nanoparticles smaller than 30 nm onto SiO2 nanospheres via a modified Stober method. The catalyst was characterized by various techniques and found to have good performance in terms of yield, reaction time, and reusability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Review
Chemistry, Inorganic & Nuclear
Krishnakumar Balu, Selvam Kaliyamoorthy, Mani Durai, Antonio Aguiar, Margarida C. M. Sobral, I. Muthuvel, Sakthivel Kumaravel, Balakrishna Avula, Abilio J. F. N. Sobral, Young-Ho Ahn
Summary: Materials based on semiconducting oxides are widely used in catalysis, photocatalysis, and other fields. Zinc oxide (ZnO), with its catalytic and optoelectronic capabilities, is utilized in various industries. Porphyrins, biomimetic molecules, can be modified to synthesize derivatives with remarkable optoelectronic properties. The combination of porphyrins and ZnO can lead to the development of hybrid materials with enhanced optical, electronic, and chemical properties. This review aims to present the evolution of ZnO/porphyrin hybrids and future research trends in this field.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Esakkimuthu Shanmugasundaram, Vigneshkumar Ganesan, Vimalasruthi Narayanan, Kannan Vellaisamy, Rajaram Rajamohan, Yong Rok Lee, Selvam Kaliyamoorthy, Stalin Thambusamy
Summary: Carbon quantum dots (CQDs) have exceptional optical and electrical qualities, making them important for various applications. Heteroatom-doped CQDs, such as B-CQDs, N-CQDs, and F-CQDs, were synthesized and their bandgap characteristics, absorption patterns, and emission characteristics were examined. Photoactive films were created by electropolymerizing PANI into the CQDs, and their photophysical and electronic characteristics were analyzed. The PANI-N-CQD film showed great potential as a photoactive material for organic solar cell applications.
NEW JOURNAL OF CHEMISTRY
(2023)
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)
