Article
Engineering, Chemical
Yuqing Lu, Ruixin Chen, Fen Wu, Wei Gan, Ziwei Zhao, Lei Chen, Miao Zhang, Zhaoqi Sun
Summary: Photocatalysis is an effective method for removing difficult to degrade organic pollutants in wastewater, but its efficiency is hindered by slow carrier transport and quick carrier recombination. In this study, a novel SiP/TiO2 S-scheme heterojunction photocatalyst was synthesized using hydrothermal method. This photocatalyst demonstrated a significantly higher degradation efficiency of norfloxacin compared to TiO2, reaching 90.89% degradation in 100 minutes, three times higher than TiO2. Spectral analysis and density functional theory calculations confirmed the presence of an internal electric field in the SiP/TiO2 heterojunction, which facilitates carrier transport and separation. Additionally, the photocatalyst grown on conductive glass is easily recyclable and prevents environmental contamination, offering new options for designing and applying heterojunction catalysts.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Lukas Lohmeyer, Elisabeth Kaifer, Hans-Joerg Himmel
Summary: This study investigates the redox properties of cobalt complexes with redox-active bisguanidine ligands, and fine-tuning of the electronic structure is achieved through systematic modifications at the ligand units. The first observation of redox isomerism for cobalt complexes with redox-active guanidine ligands is reported.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Analytical
Zheng Liu, Huan Xu, Xu Xia, Min Zhu, Xiu-Xiu Ding, Min Jiang, Shan-Shan Li
Summary: A Mn3O4/g-C3N4 composite with small-sized Mn3O4 particles and high proportion of Mn(II) and Mn(III) was prepared, showing excellent performance in detecting mercury ions. The dispersion of Mn3O4 on g-C3N4 solves the agglomeration issue and improves the conductivity. g-C3N4 provides more adsorption sites, while the heterojunction formed in the composite accelerates electron transfer and promotes the redox of mercury ions.
ANALYTICA CHIMICA ACTA
(2022)
Article
Engineering, Environmental
Hongbing Dan, Yan Kong, Qinyan Yue, Jiashuo Liu, Xing Xu, Wenjia Kong, Yue Gao, Baoyu Gao
Summary: Introducing an external magnetic field intensified the photo-Fenton catalysis process, leading to improved degradation of norfloxacin and increased generation of carriers and radicals. The enhanced radicals were attributed to accelerated carrier separation and extended bonding in H2O2, facilitated by the application of the external magnetic field. This study highlights the specific role of an external magnetic field in promoting heterogeneous photo-Fenton catalysis.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
M. Barbier, M. Sundermann, A. Poux, A. Rogalev, D. Braithwaite, J. -P. Sanchez, F. Wilhelm
Summary: The archetypical heavy-fermion superconductor CeCu2Si2 exhibits two distinct superconducting phases under pressure. Changes in pressure and applied magnetic field cause a continuous increase in the valence of Ce, with only a continuous valence change observed so far.
Article
Physics, Applied
D. Chen, S. Cai, N. -W. Hsu, S. -H. Huang, Y. Chuang, E. Nielsen, J. -Y. Li, C. W. Liu, T. M. Lu, D. Laroche
Summary: In this study, low-temperature magneto-transport measurements of an undoped Si/SiGe asymmetric double quantum well heterostructure were reported. The investigation of quantum wells at different densities by independently tuning the density in both layers was conducted. Integer quantum Hall states were observed, and the evolution of their excitation gaps with density was reported, with evidence found for the onset of spontaneous interlayer coherence.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Yibo Lei, Bingbing Suo, Wenjian Liu
Summary: This paper presents a method for localizing molecular orbitals using prelocalized molecular orbitals, demonstrating the efficacy of the imposed CASSCF (iCASSCF or simply iCAS) approach. By targeting electronic states with largest projections onto the active space defined by prechosen atomic/fragmental orbitals, and enforcing selection of initial and optimized local active orbitals from the beginning, iCAS automation and localization offer advantages in organic and transition metal chemistry.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2021)
Article
Engineering, Mechanical
Kexiang Li, Cong Peng, Zhiquan Deng, Wei Huang, Zhongming Zhang
Summary: This paper presents a novel disturbance observer-based dynamic balancing strategy for rotor shaft supported by active magnetic bearings (AMB). The strategy utilizes an extended state observer (ESO) to estimate imbalance information and a band-pass filter to reduce sensor runout effects, resulting in effective mass correction and compliance with ISO standard.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Jiwei Luo, Qixing Zhou, Xiangang Hu, Xuan Hou, Dandan Li, Shuqing Guo, Shan Sun
Summary: The study proposes a method to manipulate cell behavior by combining nanofilms with an external magnetic field, which results in faster migration and stretching phenotype of cells, with the ability of the magnetic field to reverse these effects. These findings are crucial for the advancement of cell culture in biomedical research and therapeutic applications.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Zaid H. Jabbar, Bassim H. Graimed, Maye M. Alsunbuli, Doaa A. Sabit
Summary: A novel dual-S-scheme heterojunction of NiFe2O4/Bi/Bi2WO6/Bi5O7I was constructed, showing prominent potential for the photo-degradation of environmental pollutants under visible-light illumination.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Astronomy & Astrophysics
Ruihui Wang, Jie Jiang, Yukun Luo
Summary: Recent studies have found that a small number of rogue solar active regions (ARs) can have a significant impact on the behavior of solar activity. A method to automatically detect ARs has been developed, and a homogeneous AR database has been established. The database's reliability has been verified by comparing it with other relevant databases. It has been observed that ARs with weaker magnetic flux have weaker dependence on the solar cycle. Basic parameters of the identified ARs have been provided, paving the way for further research on quantifying their impact.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2023)
Article
Engineering, Electrical & Electronic
Yijie Qin, Keyan Li, Wenting Zhang, Yang Pan, Jun Chen, Jun Ouyang, Xiaofei Yang
Summary: Active magnetic detection is an effective method for detecting metal targets, especially weak magnetic or nonmagnetic ones. However, extracting the target signal is challenging due to the weak secondary magnetic field and background interference. This study proposes an OBF method to characterize the secondary magnetic field and improves the signal-to-noise ratio.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Materials Science, Multidisciplinary
Peisen Yuan, Xiaomin Guo, Dongge Ma
Summary: Organic semiconductors exhibit spin-related magnetoconductance even without magnetic elements, leading to the emerging field of organic spintronics. Manipulation of the magnetoconductance sign is shown in an organic photodiode based on ground-state and excited-state charge-transfer interfaces. The ground-state charge-transfer interface presents negative magnetoconductance due to reverse intersystem crossing, allowing for the realization of a low-field controlled current inverter.
ACS MATERIALS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Peisen Yuan, Xiaomin Guo, Dongge Ma
Summary: Organic semiconductors have demonstrated spin-related magnetoconductance even without magnetic elements, leading to the emerging field of organic spintronics. Manipulating the sign of magnetoconductance is crucial for practical applications. In this study, we report the manipulation of magnetoconductance signs in organic photodiodes based on ground-state and excited-state charge-transfer interfaces. By adjusting the charge-transfer process, a low-field controlled current inverter can be achieved. Our work highlights the importance of organic charge-transfer states in controlling spin-related magneto-optoelectronic properties in organic semiconductors.
ACS MATERIALS LETTERS
(2023)
Article
Physics, Multidisciplinary
Oliver P. Squire, Stephen A. Hodgson, Jiasheng Chen, Vitaly Fedoseev, Christian K. de Podesta, Theodore I. Weinberger, Patricia L. Alireza, F. Malte Grosche
Summary: We report the discovery of superconductivity in the Kondo lattice system CeSb2 at a pressure-induced magnetic quantum phase transition, which can be sustained at magnetic fields exceeding the conventional Pauli limit by eightfold. Unlike CeRh2As2, CeSb2 shows local noncentrosymmetry around the Ce site, but the evolution of critical fields and normal state properties in CeSb2 under the quantum phase transition requires a fundamentally different explanation for its resistance to applied field.
PHYSICAL REVIEW LETTERS
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)