Article
Chemistry, Physical
Jakub Holovsky, Jakub Sebera, Vladimir Sychrovsky, Jan Zemen, Stefaan De Wolf, Christophe Ballif
Summary: In this work, periodic DFT simulations were used to assign vibrational spectra on nanorough wet-processed hydrogenated Si(111) surfaces, providing a better understanding of the imperfect and nanorough Si(111) surfaces through vibrational spectroscopy.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Environmental Sciences
Mohammad Qutob, Faiyaz Shakeel, Prawez Alam, Sultan Alshehri, Mohammed M. Ghoneim, Mohd Rafatullah
Summary: This review summarizes the latest research on the degradation of amoxicillin using various advanced oxidation process systems. It covers topics such as degradation mechanism, efficiency, by-products formation, and toxicity. The results suggest that hybrid systems can overcome the limitations of single systems.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Xi Yue, Yong Li, Hongxia Li, Chenhong Ma, Xiuhua Zhang
Summary: In this study, the oxidation mechanism of Si-Al2O3-fused mullite containing Ti2O3 composite was investigated by heat-treating the material at different temperatures. The results showed that the composite exhibited excellent oxidation resistance at high temperatures due to the formation of an oxide layer and a transition layer that could absorb and filter oxygen, preventing oxidation of the interior.
MATERIALS CHARACTERIZATION
(2023)
Article
Environmental Sciences
Zhezheng Ding, Shuai Tian, Juan Dang, Qingzhu Zhang
Summary: The study comprehensively investigates the reaction mechanism of isoprene with Cl using quantum chemistry calculation, elaborating the specific reaction mechanisms of chloroalkenyl peroxy radicals with HO2/NO. The results highlight the crucial role of these reactions in the formation of highly oxidized molecules (HOMs) and secondary organic aerosols (SOA).
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Aleksandra Selivanova, Andrey A. Saraev, Vasily V. Kaichev
Summary: The oxidation of ethanol on a Pt(1 1 1) single crystal surface was investigated using PM-IRRAS at near-ambient pressures. The study monitored reaction intermediates and the main reaction products in the gas phase, as well as adsorbed species on the platinum surface, during stepwise heating from room temperature to 600 K. The results showed that ethanol oxidation starts at 330 K, with acetaldehyde, acetic acid, CO2, and water detected as gas-phase products. Surface intermediates such as adsorbed acetaldehyde and ethoxy-groups were observed at low temperatures, while carbonates were the only surface intermediates at higher temperatures.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Aleksandra Selivanova, Victoria G. Demina, Egor E. Aydakov, Andrey A. Saraev, Vasily V. Kaichev, Valerii Bukhtiyarov
Summary: The oxidation of methanol on a Pt(1 1 1) single crystal surface was found to start at around 350 K, producing mainly CO2 and methyl formate. Key intermediates in the reaction include CO and formaldehyde, with formates exhibiting low thermal stability and carbonates showing extremely high thermal stability. Carbonates, along with CO, can inhibit the oxidation of methanol on the platinum surface.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jingming Zhao, Ying Zhuo, Daniel E. Diaz, Muralidharan Shanmugam, Abbey J. Telfer, Peter J. Lindley, Daniel Kracher, Takahiro Hayashi, Lisa S. Seibt, Florence J. Hardy, Oliver Manners, Tobias M. Hedison, Katherine A. Hollywood, Reynard Spiess, Kathleen M. Cain, Sofia Diaz-Moreno, Nigel S. Scrutton, Morten Tovborg, Paul H. Walton, Derren J. Heyes, Anthony P. Green
Summary: A protective pathway is identified in the active sites of copper-dependent lytic polysaccharide monooxygenases (LPMOs), which prevents oxidative damage during uncoupled turnover. This pathway involves the formation of transient high-valent intermediates and ferromagnetically coupled copper-tyrosyl radical pairs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Inshad Jum'h, Husam H. Abu-Safe, Morgan E. Ware, I. A. Qattan, Ahmad Telfah, Carlos J. Tavares
Summary: This study investigates the surface atomic arrangement and physical properties of aluminum ultrathin layers deposited on c-Si(111)-7 x 7 and hydrogen-terminated c-Si(111)-1 x 1 surfaces using molecular beam epitaxy. X-ray photoelectron spectroscopy was used to determine the surface species, and 3D atomic force microscopy was used to investigate clustering formations in the film structure. Reflection high-energy electron diffraction experiments confirmed the surface crystalline structure of the c-Si(111) during the deposition of the aluminum layers. The surface electrical conductivity was tested against atmospheric oxidation, showing differences in conductivity based on the formation of various alloys on the surface.
Article
Environmental Sciences
Xuan Chen, Jie Zhou, Hanwen Yang, Hui Wang, Huanxuan Li, Shengji Wu, Wei Yang
Summary: In this study, magnetic Co-N-doped carbon hybrid catalysts were successfully fabricated to activate peroxymonosulfate for the degradation of refractory organic pollutants in wastewater. The Co-NC-850 catalyst showed excellent performance in degrading RhB, achieving 100% degradation efficiency within 20 minutes under optimized conditions. The combination of sulfate radicals and singlet oxygen played a key role in the degradation process.
Article
Materials Science, Multidisciplinary
Alexander S. Gouralnik, Alexander Shevlyagin, Igor M. Chernev, Alexander Yu Ustinov, Andrey Gerasimenko, Anton K. Gutakovskii
Summary: Mg2Si films were grown on Si surfaces at high deposition rates using a pulse-type evaporator, allowing for effective accumulation on hot Si surfaces. The structure, crystal quality, and formation mechanism of the films were studied, demonstrating the potential for Si/Mg2Si solar cell technologies.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Environmental
Shibo Zhang, Hongjin Wu, Li'ao Gao, Juan Dang, Qingzhu Zhang, Wenxing Wang
Summary: This study comprehensively investigated the atmospheric oxidation of (E)-beta-farnesene initiated by OH radical. It was found that OH addition reactions dominate the initial reactions, leading to the production of various oxidized compounds. This research is of great significance for understanding the atmospheric fate of (E)-beta-farnesene and the contributions of sesquiterpenes to SOA formation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Tahereh Mohammadi Hafshejani, Jonas Wohlgemuth, Peter Thissen
Summary: Strain affects the surface reactivity of H-Si(111) by weakening Si-H bonds and causing intensity fluctuations in bending modes, leading to the formation of a new peak associated with the diffusion of hydrogen atoms. The findings suggest that both back bonds and up bonds are easily oxidized under strain, with the direct formation of Si-OH without an energy barrier. Different oxidation pathways predominate when strain is present.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Review
Engineering, Environmental
Wuqi Huang, Sa Xiao, Hua Zhong, Ming Yan, Xin Yang
Summary: This paper analyzed the mechanisms of persulfates activation by carbonaceous materials and their composites, explored the synergistic effect for activation improvement in the composites or in the hybrid activation systems. It summarized the influence of environmental conditions on the activation processes, discussed deactivation and regeneration of carbonaceous materials, and reviewed the application of these materials in activating persulfates for remediation of contaminated groundwater and treatment of wastewater, as well as proposed the challenges for such applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Meng Li, Yu-Ting Jin, Dan-Yang Cao, Ling-Ling Yang, Jian-Fang Yan, Zhao-Xin Zhang, Zhang Liu, Long-Wei Huang, Shao-Qi Zhou, Ji-Liang Cheng, Qinglan Zhao, Hai-Ming Zhao, Nai-Xian Feng, Ce-Hui Mo
Summary: The study demonstrates that efficient degradation of PFOS can be achieved through D-Ce/Sb2O3 anode, with electron transfer and generation of hydroxyl radicals playing crucial roles. The Ce-O active sites can reduce the electron and hydroxyl radical migration distance, enhancing catalytic activity.
Article
Engineering, Environmental
Yanlong Sun, Yu Li, Jianmin Zhan, Aiqi Feng, Chengzhi Zhou, Jianrong Chen
Summary: This study investigated the impact of four anions on the degradation of SMX by PMS, showing that the anions enhance the degradation efficiency. The anions participate in the two stages of SMX degradation and can reduce the ecological risk of toxic byproducts to the environment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Electrochemistry
Fernando P. Cometto, Gustavo Ruano, Federico A. Soria, C. Andrea Calderon, Patricia A. Paredes-Olivera, Guillermo Zampieri, E. Martin Patrito
ELECTROCHIMICA ACTA
(2016)
Article
Chemistry, Applied
P. M. Carraro, A. A. Garcia Blanco, F. A. Soria, G. Lener, K. Sapag, G. A. Eimer, M. I. Oliva
MICROPOROUS AND MESOPOROUS MATERIALS
(2016)
Article
Chemistry, Physical
Federico A. Soria, Eduardo M. Patrito, Patricia Paredes-Olivera
JOURNAL OF PHYSICAL CHEMISTRY C
(2013)
Article
Chemistry, Physical
Federico A. Soria, Patricia Paredes-Olivera, Eduardo M. Patrito
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Physical
Federico A. Soria, Weiwei Zhang, Patricia A. Paredes-Olivera, Adri C. T. van Duin, Eduardo M. Patrito
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Federico A. Soria, Eduardo M. Patrito, Patricia Paredes-Olivera
Article
Chemistry, Physical
Maria F. Juarez, Federico A. Soria, Eduardo M. Patrito, Patricia Paredes-Olivera
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2011)
Article
Chemistry, Physical
P. M. Carraro, F. A. Soria, E. G. Vaschetto, K. Sapag, M. I. Oliva, G. A. Eimer
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2019)
Article
Chemistry, Physical
Federico A. Soria, Eduardo M. Patrito
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
Costanza Ronchi, Federico A. Soria, Lorenzo Ferraro, Silvana Botti, Cristiana Di Valentin
Summary: By using time-dependent density functional theory calculations, this study investigates the absorption properties of two catechol-like molecules anchored to spherical anatase TiO2 nanoparticles. The research reveals a direct charge transfer injection mechanism and the impact of molecular benzene ring orientation on absorption intensity.
MATERIALS TODAY ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Daniela K. Jacquelin, Federico A. Soria, Patricia A. Paredes-Olivera, Eduardo M. Patrito
Summary: In this study, the dynamics of TMA molecules on graphene at different network structures were investigated using ReaxFF force field. The honeycomb structure demonstrated higher thermal stability, with guest TMA molecules further enhancing it. The breakage of hydrogen bonds at high temperatures led to network melting.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Federico A. Soria, Cristiana Di Valentin
Summary: This study investigates the interaction of nucleic acid components with TiO2 surfaces using dispersion-corrected hybrid DFT calculations, finding that phosphate anion and bases can anchor nucleotides collaboratively in adsorption mode, with nucleotides containing guanine base showing the strongest adsorption.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Federico A. Soria, Cristiana Di Valentin
Summary: This study investigated the adsorption behavior of TiO2 nanoparticles in a water drop through ReaxFF reactive molecular dynamics simulations, revealing that water can adsorb on the nanoparticle surface in both molecular and dissociative ways. The research also identified two different dissociative adsorption mechanisms at different coverage rates, and thermal annealing simulations showed that some water molecules remain on the nanoparticle surface. Additionally, comparisons with flat surfaces demonstrated that nanoparticles have higher water adsorption capacity due to the presence of more low-coordinated Ti atoms available for adsorption.
Article
Nanoscience & Nanotechnology
Federico A. Soria, Weiwei Zhang, Adri C. T. van Duin, Eduardo M. Patrito
ACS APPLIED MATERIALS & INTERFACES
(2017)