Article
Chemistry, Multidisciplinary
Ziyi Li, Jun Li, Huazhen Rong, Jiayu Zuo, Xiong Yang, Yi Xing, Yingshu Liu, Guangshan Zhu, Xiaoqin Zou
Summary: This study reports a method of facilitating SO2/NO2 separation through NO2 dimerization. The NO2 dimerization is triggered by temperature and pressure, resulting in N2O4 with a larger molecular size, which inhibits N2O4 diffusion into the zeolite pore and achieves high separation selectivity. High performance SO2/NO2 separation was achieved on an SSZ-13 zeolite membrane.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Zahra Sadeghi, Mojtaba Mansoorianfar, Masoud Panjepour, Mahmood Meratian
Summary: In recent years, there has been a significant interest in metal foams due to their unique physical and mechanical properties as well as their applications. This study investigates the fabrication of magnesium foams using viscose rayon fibers as a hydrogen source and examines the chemical composition, pyrolysis, and structure of the foams. The results demonstrate that viscose rayon fibers can effectively serve as a foaming agent for producing magnesium foams with high porosity and potentially useful for load-bearing, weight-saving, and impact-absorbing structures.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Yunlan Guo, Yadong Lu, Chao Liu, Jing Wang, Jian Ruan, Xiaoyun Li, Jianjun Han, Jun Xie
Summary: The study investigated the effects of ZnAl2O4 nanocrystals on ion-exchange properties of glass-ceramics, revealing that ZnAl2O4 NCs precipitation improved hardness and ion diffusion, indicating promising applications of glass-ceramics in the field of optoelectronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Organic
Min Zheng, Ke Gao, Yanhu Zhang, Hongjian Lu
Summary: An aryl radical in situ SO2-capture reaction was reported for the first time, using aryl diazonium salts as aryl radical precursors and vinyl triflates and allyl(alkynyl) trifluoromethylsulfones as radical acceptors and in situ SO2 donors. The reaction can produce various beta-keto, allyl, and alkynyl arylsulfone derivatives under mild visible-light photoredox-catalytic conditions without requiring external SO2 sources.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
G. Rajmohan, R. Shanmugam, A. Elangovan, R. K. Sankaranarayanan, G. Ravindran, P. Dineshkumar, G. Arivazhagan
Summary: New hydrazone derivatives, compound 1 and compound 2, have been synthesized by solid-state synthesis method and characterized using spectroscopic and quantum chemical calculations. The results show that compound 1 and compound 2 have different nucleophilic sites, and the molecular structures are predominantly stabilized by pi -> pi* interaction forces.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Xinbao Zhang, Guanghui Zhang, Wei Liu, Fei Yuan, Jianyang Wang, Jie Zhu, Xiao Jiang, Anfeng Zhang, Fanshu Ding, Chunshan Song, Xinwen Guo
Summary: Identifying the surface structure of heterogeneous catalysts is critical for understanding the active sites, but challenging at elevated temperatures; In CO2 hydrogenation, surface reconstruction of ZnAl2O4 generates amorphous ZnO, enhancing methanol production activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Biochemistry & Molecular Biology
Alexandra Waskow, Lorenzo Ibba, Max Leftley, Alan Howling, Paolo F. Ambrico, Ivo Furno
Summary: This study investigated optimal conditions in a surface dielectric barrier discharge (SDBD) setup through a parametric study, finding that treatment time and voltage are key parameters for accelerating seed germination. However, no clear conclusion on causative agents could be drawn from the results.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Materials Science, Ceramics
J. A. P. Sardelli, O. H. Borges, C. Pagliosa Neto, V. C. Pandolfelli
Summary: The increasing need for cleaner steels has led to the development of zero-carbon bricks. These refractories offer advantages such as lower thermal conductivity and no direct CO2 emissions, reducing thermal losses and environmental impacts. This study compared the addition of spinel-like inducers (MgO or ZnO) to enhance the properties of these refractories and assessed the diffusion mechanisms and the role of the Kirkendall effect on their physical and thermomechanical properties.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
M. Serdechnova, C. Blawert, S. Karpushenkov, L. Karpushenkava, T. Shulha, P. Karlova, R. Vasilic, S. Stojadinovic, S. Stojanovic, Lj Damjanovic-Vasilic, V Heitmann, S. M. Rabchynski, M. L. Zheludkevich
Summary: PEO coatings were successfully formed on zinc alloy in a phosphate aluminate electrolyte, containing varying mixtures of ZnO and ZnAl2O4. The coatings showed internal porosity and low cohesion, limiting their photocatalytic activity. Composite coatings of ZnO and ZnAl2O4 spinel displayed higher activity but were not sufficient for fast and effective catalytic cleaning applications.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Yuze Xue, Le Xin, Mingwei Zhang, Panpan Lyu, Luchao Ren, Jiwei Zhai
Summary: Double sintering effectively improves the performance of Ba0.5Sr0.5TiO3-ZnAl2O4 composite ceramics, resulting in higher density, more uniform grain size distribution, and reduced dielectric permittivity, oxygen vacancy content, and grain boundary resistance. The optimum dielectric tunability and Q value are 23.4% and 276, respectively. Double sintering is an effective strategy for adjusting the properties of composite ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Mohamed Amghar, Amira Bougoffa, Abdessalem Trabelsi, Abderrazek Oueslati, Essebti Dhahri
Summary: Nanoparticles of AgxZn1-xAl2O4-x/2 (x=0.05 and x=0.1) were synthesized and characterized. The structural characterization confirmed the formation of a cubic spinet structure, and the morphological evaluation showed the agglomeration of nanoparticles. Impedance spectroscopy was used to study the electrical behavior, revealing different conductivity models at different temperatures.
Article
Engineering, Chemical
Qingping Xin, Xinghui Zhang, Wei Shao, Hong Li, Yuzhong Zhang
Summary: In this study, mixed matrix membranes (MMMs) were fabricated by incorporating covalent organic framework (COF) into Pebax 1657 polymer matrix for the separation of sulfur dioxide (SO2). By strengthening the solubility-diffusion mechanism, the SO2/N2 gas separation performance was investigated. The Pebax/TpPa-1 membrane with 5 wt% filler loading exhibited the most excellent SO2/N2 separation performance with a permeability of 1709 Barrer and a selectivity of 811.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Sven T. Stripp
Summary: Earth-abundant transition metals play essential roles in cellular gas metabolism, forming gas-processing metalloenzymes that catalyze redox reactions. Biophysicists use techniques like Fourier-transform infrared spectroscopy to study the reaction principles of GPMs. Infrared spectroscopy provides information on catalytic cofactors, amino acid residues, and protein structural changes.
Article
Engineering, Environmental
Jakub Ederer, Pavel Janos, Martin Stastny, Jiri Henych, Karel Ederer, Michaela Sramova Slusna, Jakub Tolasz
Summary: The study on cerium oxide (CeO2) annealed from carbonate precursor shows that the abundance of Lewis type sites and appropriate number of surface hydroxyl groups have significant impacts on its catalytic activity, while the amount of residual carbonate species may also play a crucial role.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
T. Huyen Vuong, N. Rockstroh, U. Bentrup, J. Rabeah, J. Knossalla, S. Peitz, R. Franke, A. Brueckner
Summary: A series of supported Ni/SiO2-Al2O3 catalysts with different Al/Si ratios have been prepared and analyzed during dimerization of n-butenes under industrially relevant conditions. It was found that Bronsted acid sites play a dual role in stabilizing active Ni single species and promoting undesired branching reactions for C-8 products. Optimum catalysts should contain a maximum number of single Ni sites in the immediate vicinity of Bronsted surface sites to suppress isomerization.
Article
Environmental Sciences
Guoqiang Gan, Shiying Fan, Xinyong Li, Zhongshen Zhang, Zhengping Hao
Summary: Volatile organic compounds (VOCs) are significant pollutants in the environment due to their toxicity, volatility, and poor degradability. Controlling their emission is urgent, and efficient technologies for removal and recovery are of great importance. Adsorption and membrane separation processes have been extensively studied and favored for their industrial prospects.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Guoqiang Gan, Fengquan Xu, Xinyong Li, Shiying Fan, Chunpeng Bai, Qidong Zhao, Moses O. Tade, Shaomin Liu, Wenjun Zhang
Summary: The influence of crystal phase on the electrocatalytic performance and active sites of CuFe2O4 spinel for the electrochemical dechlorination of 1,2-dichloroethane is studied. A higher activity and ethylene selectivity are observed for the cubic phase compared to the tetragonal phase, indicating the significant enhancement of electrocatalytic performance by the cubic crystal structure. The octahedral Fe atom on the surface of cubic CuFe2O4(311) is identified as the active site responsible for ethylene production with an energy barrier of 0.40 eV. This work highlights the importance of crystal phase engineering for optimizing electrocatalytic performance and provides an efficient strategy for the development of advanced electrocatalysts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Zhiyuan Liu, Shiying Fan, Xinyong Li, Zhaodong Niu, Jing Wang, Chunpeng Bai, Jun Duan, Moses O. Tade, Shaomin Liu
Summary: We demonstrate a composite photocatalyst for nitric oxide conversion with a Cu-Fe alloy, graphitic carbon nitride (g-C3N4), and ZnIn2S4. The superior photocatalytic performance of 6.45-fold that of g-C3N4 was confirmed. The delay effect on charge recombination was observed through time-resolved photoluminescence, and heterojunction establishment was attributed to the hole-trapping ability of ZnIn2S4. The combined effects of the Cu-Fe alloy were confirmed by NO-specific adsorption and conversion experiments, and the active species involved were examined via electron spin resonance. Density functional theory calculations revealed the molecular mechanisms of photocatalytic conversion of NO to NO3-. Therefore, g-C3N4|ZnIn2S4|CuFe has potential for sustainable and efficient pollutant conversion.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Zhaodong Niu, Shiying Fan, Xinyong Li, Jun Duan, Aicheng Chen
Summary: In this study, a new catalyst was developed for efficient wastewater treatment and high-value ammonia generation. The catalyst exhibited high Faradaic efficiency and yield at specific potentials, and the reaction was promoted by the interface effect. The experimental results and theoretical calculations provided insights into the catalytic mechanism and product formation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Zhiyuan Liu, Shiying Fan, Xinyong Li, Zhaodong Niu, Jing Wang, Chunpeng Bai, Jun Duan, Moses O. Tade, Shaomin Liu
Summary: In this paper, single atom Cu/Ta3N5/CdIn2S4 S-scheme hierarchical polyhedrons (SACu/TN/CIS SHPs) were successfully synthesized and their photocatalytic activity improvement was investigated. The synergistic effect of SACu and S-scheme was confirmed to exhibit excellent charge separation and reduction of energy barriers during ammonium production reaction. The NH3 production rate of SACu/TN/CIS SHPs under light conditions was remarkably 43.6 times higher than that of Ta3N5. This study not only proposes an efficient catalyst under visible light, but also provides an advantageous solution for photocatalytic nitrate reduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Jiye Zhang, Huihui Chen, Tianheng Tong, Ruimin Liu, Saihong Yan, Xuefang Liang, Christopher J. Martyniuk, Jinmiao Zha
Summary: Asian clams (Corbicula fluminea) exposed to different concentrations of Benzotriazole ultraviolet stabilizers (BUVSs) showed varying physiological and molecular toxic effects, including changes in filtration rate, histopathological changes, and induction of apoptosis. This study provides important insights into the toxicity and hazards of BUVSs in benthic organisms.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Emma Ivantsova, Isaac Konig, Christopher L. Souders II, David McNabney, Denina D. B. Simmons, Christopher J. Martyniuk
Summary: Blood pressure medication atenolol, a beta-blocker detected in wastewater systems, has negative effects on early stages of zebrafish development. It affects survival, heart rate, mitochondrial function, lipid and amino acid profiles, and locomotor activity. Atenolol decreases heart rate and alters lipid content in zebrafish at environmentally relevant levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Mohamed Hamed, Christopher J. Martyniuk, Rashad E. M. Said, Hamdy A. M. Soliman, Ahmed E. A. Badrey, Elhagag A. Hassan, Hani N. Abdelhamid, Alaa G. M. Osman, Alaa El -Din H. Sayed
Summary: This study reports the presence of pyrogallol in wastewater in Egypt for the first time. Acute and sub-acute toxicity experiments were conducted to evaluate the toxic effects of pyrogallol on catfish. The results showed that pyrogallol exposure caused morphological changes, hematological and biochemical alterations, indicating potential risks to aquatic species.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biochemistry & Molecular Biology
Wei Chi, Juanjuan Fu, Chris J. Martyniuk, Jiangyong Wang, Libin Zhou
Summary: This study investigates the collaboration of HIF-1 alpha A and HIF-1 alpha B in regulating mitophagy and apoptosis under hypoxic stress in cyprinid fish. The results show that HIF-1 alpha A induces apoptosis by promoting ROS generation and mitochondrial depolarization, while HIF-1 alpha B is primarily responsible for mitophagy induction, promoting ATP production to mitigate apoptosis.
JOURNAL OF MOLECULAR EVOLUTION
(2023)
Article
Chemistry, Physical
Penglei Wang, Shiying Fan, Xinyong Li, Jun Duan, Dongke Zhang
Summary: The impact of the piezoelectric effect on the photocatalytic production of hydrogen peroxide (H2O2) over graphitic carbon nitride (CN) was investigated by modulating its molecular structure. The results showed that the photocatalytic activity of CN, CN-P, CN-OF was enhanced by approximately 1.40, 1.46, and 1.51 times due to the piezoelectric effect, respectively, while CN-CA exhibited a 6-fold decrease in activity. Various techniques were employed to explore the active sites, piezoelectric polarization, and charge separation, revealing that the piezoelectric effect's influence on photocatalytic H2O2 production over CN is determined by multiple factors.
Article
Environmental Sciences
David W. Bertolatus, Larry B. Barber, Christopher J. Martyniuk, Huajun Zhen, Timothy W. Collette, Drew R. Ekman, Aaron Jastrow, Jennifer L. Rapp, Alan M. Vajda
Summary: In order to evaluate the relationships between anthropogenic impacts, contaminant occurrence, and fish health, fish exposures were conducted across different land use sites in the Shenandoah River watershed. The study found adverse reproductive outcomes and increased mortality in fish exposed to wastewater treatment plant effluent and agricultural impacts. Molecular biomarkers and hepatic metabolomic and transcriptomic profiles indicated variations in land use and contaminant profiles. This study demonstrated the linkages between human impacts, contaminant occurrence, and exposure effects, highlighting the increased risk of adverse outcomes in fish exposed to complex mixtures.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Nanoscience & Nanotechnology
Yu Qin, Shiying Fan, Jinsuo Gao, Moses O. Tade, Shaomin Liu, Xinyong Li
Summary: Cu-doped CoMn2O4 catalysts showed excellent catalytic performance in NO reduction by CO, with Cu0.3Co0.7Mn2O4 achieving 100% NO conversion and 80% N2 selectivity at 250 degrees C. Structural analysis revealed that the introduced Cu replaces some Co in tetrahedral coordination, resulting in a strong synergistic effect between different metals.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Environmental Sciences
Jinyun Luo, Jincheng Mu, Xinyong Li, Baojun Liu
Summary: With the development of metallurgy, chemical manufacturing, and mining, lead pollution in water, especially from battery industries, has become a serious environmental problem. In this study, a highly efficient removal of Pb2+ from wastewater was achieved using MoO2@N-doped hollow carbon sphere (MoO2@ NHCS) anodes in a capacitive deionization (CDI) process. The MoO2@NHCS electrodes exhibited a high adsorption capacity of 202.14 mg/g for Pb2+ in a 50 ppm solution (pH = 6 and U = 1.2 V). Additionally, the electrodes showed selectivity towards Pb2+ even in the presence of Na+ and other heavy metal ions. The selective removal was attributed to the transformation of octahedral MoO2 into tetrahedral [MoO4]2-, which could effectively trap Pb2+ to form PbMoO4.
Article
Biochemistry & Molecular Biology
Isaac Konig, Nazish Iftikhar, Evelyn Henry, Cole English, Emma Ivantsova, Christopher L. Souders II, Silvana Marcussi, Christopher J. Martyniuk
Summary: This study compared the toxicity of carvacrol, acetylcarvacrol, and fipronil to early staged zebrafish. The results showed that carvacrol and its derivative have lower acute toxicity compared to fipronil.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2023)
Article
Environmental Sciences
Sarah J. Patuel, Cole English, Victoria Lopez-Scarim, Isaac Konig, Christopher L. Souders II, Emma Ivantsova, Christopher J. Martyniuk
Summary: This study evaluates the sub-lethal toxicity potential of broflanilide in early staged zebrafish and finds that the insecticide has minimal impact on survival and biochemical parameters of the fish but can induce neurotoxicity and motor dysfunction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
