A Novel Perspective on Enhancing Photocatalytic Performance through the Synergistic Effect of Nd Single Atoms and Heterostructures
In this paper, the synergistic effect of 4f levels of Nd and heterostructures is studied by combining steady-state, transient, and ultrafast spectral analysis techniques with DFT theoretical calculations based on the construction of Nd single atom-modified black phosphorus/g-C3N4 (BP/CN) heterojunctions. AbstractThere are few reports on lanthanide single atom modified catalysts, as the role of the 4f levels in photocatalysis is difficult to explain clearly. Here, the synergistic effect of 4f levels of Nd and heterostructures is studied by combining steady-state, transient, and ultrafast spectral analysis techniques with DF...
Source: Small - April 22, 2024 Category: Nanotechnology Authors: Shuang Ge,
Jing An,
Qiuye Wang,
Minze Li,
Dingsheng Wang,
Guofeng Wang Tags: Research Article Source Type: research
Molecules, Vol. 29, Pages 1894: Phosphorus Modification of Iron: Mechanistic Insights into Ammonia Synthesis on Fe2P Catalyst
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Ammonia (NH3) is a critical chemical for fertilizer production and a potential future energy carrier within a sustainable hydrogen economy. The industrial Haber–Bosch process, though effective, operates under harsh conditions due to the high thermodynamic stability of the nitrogen molecule (N2). This motivates the search for alternative catalysts that facilitate ammonia synthesis at milder temperatures and pressures. Theoretical and experimental studies suggest that circumventing the trade-off between N–N activation and subsequent NHx hydrogenation, governed by the Brønsted&...
Source: Molecules - April 22, 2024 Category: Chemistry Authors: Abdulrahman Almithn Tags: Article Source Type: research
Exploring Micronutrient Dynamics in COVID-19 Severity and Mortality: Unraveling the Roles of Vitamin D, Calcium, Phosphorus, Magnesium and ALP
This study explores the impact of Vitamin D, calcium, phosphorus, magnesium, and alkaline phosphatase (ALP) on COVID-19 severity and mortality. The study involves 200 participants (100 COVID-19 patients, 100 controls), we meticulously analyzed micronutrient dynamics. Calcium, phosphorus, magnesium and ALP was measured spectrophotometrically. Vitamin D was measured using Chemiluminescent method. The study reveals that diminished levels of calcium, phosphorus, magnesium, and with elevated ALP, are significantly associated with COVID-19 cases. Whereas the Vitamin D levels in severe group was increased when compared to mild ca...
Source: Indian Journal of Clinical Biochemistry - April 21, 2024 Category: Biochemistry Source Type: research
Constructing B ─N─P Bonds in Ultrathin Holey g‐C3N4 for Regulating the Local Chemical Environment in Photocatalytic CO2 Reduction to CO
This study provides insights into the mechanism of charge carrier dynamics and active site determination, contributing to the understanding of the photocatalytic CO2RR mechanism. (Source: Small)
Source: Small - April 19, 2024 Category: Nanotechnology Authors: Mahmoud Kamal Hussien,
Amr Sabbah,
Mohammad Qorbani,
Raghunath Putikam,
Septia Kholimatussadiah,
Der ‐Lii M. Tzou,
Mohamed Hammad Elsayed,
Yu‐Jung Lu,
Yen‐Yu Wang,
Xing‐Hao Lee,
Tsai‐Yu Lin,
Nguyen Quoc Thang,
Heng‐Liang Wu,
Shu Tags: Research Article Source Type: research
Molecules, Vol. 29, Pages 1869: Characterization and Flame-Retardant Properties of Cobalt-Coordinated Cyclic Phosphonitrile in Thermoplastic Polyurethane Composites
g
Xu
Liu
Halogen-free organophosphorus flame retardants have promising application prospects due to their excellent safety and environmental protection properties. A cobalt-coordinated cyclic phosphonitrile flame retardant (Co@CPA) was synthesized via a hydrothermal method using hexachlorocyclotriphosphonitrile (HCCP), 5-amino-tetrazolium (5-AT), and cobalt nitrate hexahydrate (Co(NO3)2∙6H2O) as starting materials. The structure was characterized using Fourier transform infrared (FTIR), nuclear magnetic resonance spectroscopy (1H-NMR), scanning electron microscopy (SEM), and thermogravimetric analys...
Source: Molecules - April 19, 2024 Category: Chemistry Authors: Zeng Xu Li Xiong Ding Xu Liu Tags: Article Source Type: research
Radiofrequency Ablation of Parathyroid Adenoma: Results of a Retrospective Analysis of 60 Patients
ConclusionOur study showed that RFA with the alternative technique, called “Nik jet dissection” is a safe and effective modality in management of PTA. Therefore, we suggest expanding the indications for RFA in PTA management, especially when surgery is not feasible.Level of EvidenceLevel 3, Local non-random sample.Graphical Abstract (Source: CardioVascular and Interventional Radiology)
Source: CardioVascular and Interventional Radiology - April 19, 2024 Category: Radiology Source Type: research
Molecules, Vol. 29, Pages 1841: Synthesis and Structural Studies of peri-Substituted Acenaphthenes with Tertiary Phosphine and Stibine Groups
Petr Kilian
Two mixed peri-substituted phosphine-chlorostibines, Acenap(PiPr2)(SbPhCl) and Acenap(PiPr2)(SbCl2) (Acenap = acenaphthene-5,6-diyl) reacted cleanly with Grignard reagents or nBuLi to give the corresponding tertiary phosphine-stibines Acenap(PiPr2)(SbRR’) (R, R’ = Me, iPr, nBu, Ph). In addition, the Pt(II) complex of the tertiary phosphine-stibine Acenap(PiPr2)(SbPh2) as well as the Mo(0) complex of Acenap(PiPr2)(SbMePh) were synthesised and characterised. Two of the phosphine-stibines and the two metal complexes were characterised by single-crystal X-ray diffraction. The peri-...
Source: Molecules - April 18, 2024 Category: Chemistry Authors: Laurence J. Taylor Emma E. Lawson David B. Cordes Kasun S. Athukorala Arachchige Alexandra M. Z. Slawin Brian A. Chalmers Petr Kilian Tags: Article Source Type: research
Nitrogen and phosphorus co-doped carbon point modified 2D/2D (001)TiO2/Ti3C2Tx heterostructures for highly efficient photocatalytic degradation of antibiotics in water
New J. Chem., 2024, Advance Article DOI: 10.1039/D4NJ00621F, PaperTing Li, Qianqian Zou, Junhai Wang, Qiang Li, Yumu Zhou, Yulan Tang The synergistic photocatalysis effect of (001)TiO2/Ti3C2Tx modified by NPCDs. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - New J. Chem. latest articles)
Source: RSC - New J. Chem. latest articles - April 17, 2024 Category: Chemistry Authors: Ting Li Source Type: research
The Role of Edible Bulbous Layers on Macro, Micro, and Heavy Metal Contents of Leek (Allium porrum) Plant
In this study, the degree of accumulation of biogenic element and heavy metal contents of different parts and edible layers of leeks cultivated in Konya in Turkey was revealed. The amounts of P and K of leek were determined from 154.69 (leaf top of leek) and 985.05 mg/kg (root of leek) to 1377.63 (onion part of leek) and 2688.50 mg/kg (root of leek), respectively. P and K contents of leek layers changed from 139.45 (1st layer) and 446.63 mg/kg (7th layer) to 1596.69 (2nd layer) and 2201.53 mg/kg (4th layer), respectively. While Ca amounts of leek parts vary between 577.09 (leaf of leek) and 666.87 mg/kg (root of leek), Mg ...
Source: Biological Trace Element Research - April 17, 2024 Category: Biology Authors: Fahad AlJuhaimi Duygu Ak çay Kulluk Isam A Mohamed Ahmed Fatma G ökmen Yılmaz Emad Karrar Mehmet Musa Özcan Source Type: research
Characteristic and mechanism of biological nitrogen and phosphorus removal facilitated by biogenic manganese oxides (BioMnOx) at various concentrations of Mn(II)
Environ Res. 2024 Apr 15:118943. doi: 10.1016/j.envres.2024.118943. Online ahead of print.ABSTRACTBiogenic manganese oxides (BioMnOx) have attracted considerable attention as active oxidants, adsorbents, and catalysts. However, characteristics and mechanisms of nitrification-denitrification in biological redox reactions mediated by different concentrations of BioMnOx are still unclear. Fate of nutrients (e.g., NH4+-N, TP, NO3--N) and COD were investigated through different concentrations of BioMnOx produced by Mn(II) in the moving bed biofilm reactor (MBBR). 34% and 89.2%, 37.8% and 89.8%, 57.3% and 88.9%, and 62.1% and 90...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Ying Cao Sicheng Shao Zhiqing Ye Chunxiao Wang Dandan Pan Xiangwei Wu Source Type: research
Metabolomic reveals the responses of sludge properties and microbial communities to high nitrite stress in denitrifying phosphorus removal systems
Environ Res. 2024 Apr 15:118924. doi: 10.1016/j.envres.2024.118924. Online ahead of print.ABSTRACTNitrite, as an electron acceptor, plays a good role in denitrifying phosphorus removal (DPR); however, high nitrite concentration has adverse affects on sludge performance. We investigated the precise mechanisms of responses of sludge to high nitrite stress, including surface characteristics, intracellular and extracellular components, microbial and metabolic responses. When the nitrite stress reached 90 mg/L, the sludge settling performance was improved, but the activated sludge was aging. FTIR and XPS analysis revealed a sig...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Rongrong Hou Jiandong Liu Peng Yang Haijun Liu Rongfang Yuan Ying Ji Hongfei Zhao Zhongbing Chen Beihai Zhou Huilun Chen Source Type: research
Effects of Streptomyces sp. HU2014 inoculation on wheat growth and rhizosphere microbial diversity under hexavalent chromium stress
Ecotoxicol Environ Saf. 2024 Apr 15;276:116313. doi: 10.1016/j.ecoenv.2024.116313. Online ahead of print.ABSTRACTWheat (Triticum aestivum L.) is a major foodstuff for over 40% of the world's population. However, hexavalent chromium [Cr(VI)] in contaminated soil significantly affects wheat production and its ecological environment. Streptomyces sp. HU2014 was first used to investigate the effects of Cr (VI) stress on wheat growth. We analyzed the Cr(VI) concentration, physicochemical properties of wheat and soil, total Cr content, and microbial community structures during their interactions. HU2014 reduced the toxicity of C...
Source: Ecotoxicology and Environmental Safety - April 16, 2024 Category: Environmental Health Authors: Hongxia Zhu Linfeng Hu Yunlong Wang Peipei Mei Feng Zhou Tetiana Rozhkova Chengwei Li Source Type: research
Azophosphines: Synthesis, Structure and Coordination Chemistry
Chemistry. 2024 Apr 16:e202401358. doi: 10.1002/chem.202401358. Online ahead of print.ABSTRACTThe conceptual replacement of nitrogen with phosphorus in common organic functional groups unlocks new properties and reactivity. The phosphorus-containing analogues of triazenes are underexplored but offer great potential as flexible and small bite-angle ligands. This manuscript explores the synthesis and characterisation of a family of air-stable azophosphine-borane complexes, and their subsequent deprotection to the free azophosphines. These compounds are structurally characterised, both experimentally and computationally, and ...
Source: Chemistry - April 16, 2024 Category: Chemistry Authors: Emma J Jordan Ethan D E Calder Holly V Adcock Louise Male Martin Nieger J Chris Slootweg Andrew R Jupp Source Type: research
Dynamics of Coordinated Phosphonate Group Directly Observed by 17O-NMR in Lanthanide(III) Complexes of a Mono(ethyl phosphonate) DOTA Analogue
Chemistry. 2024 Apr 16:e202400970. doi: 10.1002/chem.202400970. Online ahead of print.ABSTRACTBiological phosphates can coordinate metal ions and their complexes are common in living systems. Dynamics of mutual oxygen atom exchange in the tetrahedral group in complexes has not been investigated. Here, we present a direct experimental proof of the exchange ("phosphonate rotation") in model Ln(III) complexes of monophosphonate H4dota analogue which alters phosphorus atom chirality of coordinated phosphonate monoester. Combination of macrocycle-based isomerism with P-based chirality leads to several diastereoisomers. The (non...
Source: Chemistry - April 16, 2024 Category: Chemistry Authors: Adam Sv ítok Jan Blahut Peter Urbanovsk ý Petr Hermann Source Type: research
Functions and Metabolism of Amino Acids in Bones and Joints of Cats and Dogs
Adv Exp Med Biol. 2024;1446:155-175. doi: 10.1007/978-3-031-54192-6_7.ABSTRACTThe bone is a large and complex organ (12-15% of body weight) consisting of specialized connective tissues (bone matrix and bone marrow), whereas joints are composed of cartilage, tendons, ligaments, synovial joint capsules and membranes, and a synovial joint cavity filled with synovial fluid. Maintaining healthy bones and joints is a dynamic and complex process, as bone deposition (formation of new bone materials) and resorption (breakdown of the bone matrix to release calcium and phosphorus) are the continuous processes to determine bone balanc...
Source: Advances in Experimental Medicine and Biology - April 16, 2024 Category: Research Authors: Arianna N Lopez Fuller W Bazer Guoyao Wu Source Type: research
