Inorganics (Basel)最新文献

Metal-Organic Cages Based on Phosphorescent Organometallics 基于磷光有机金属的金属-有机笼

Inorganics (Basel) Pub Date : 2023-11-14 DOI: 10.3390/inorganics11110436

Yunliang Yu, Xiaoxia Wang, Yuliang Liu, Chao Zou

引用次数: 0

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study n基多齿配体和相应的Zn(II)配合物:结构和光谱研究

Inorganics (Basel) Pub Date : 2023-11-10 DOI: 10.3390/inorganics11110435

Giorgio Volpi, Stefano Zago, Roberto Rabezzana, Eliano Diana, Emanuele Priola, Claudio Garino, Roberto Gobetto

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Thermochemistry, Structure, and Optical Properties of a Newβ-La2(SO4)3 Polymorphic Modification 新型β- la2 (SO4)3多态修饰的热化学、结构和光学性质

Inorganics (Basel) Pub Date : 2023-11-09 DOI: 10.3390/inorganics11110434

Sofia A. Basova, Maxim S. Molokeev, Aleksandr S. Oreshonkov, Maksim A. Zhernakov, Nikolay A. Khritokhin, Aleksandr S. Aleksandrovsky, Alexander S. Krylov, Elena I. Sal’nikova, Nikita O. Azarapin, Natalia A. Shelpakova, Klaus Müller-Buschbaum, Yuriy G. Denisenko

{"title":"Thermochemistry, Structure, and Optical Properties of a Newβ-La2(SO4)3 Polymorphic Modification","authors":"Sofia A. Basova, Maxim S. Molokeev, Aleksandr S. Oreshonkov, Maksim A. Zhernakov, Nikolay A. Khritokhin, Aleksandr S. Aleksandrovsky, Alexander S. Krylov, Elena I. Sal’nikova, Nikita O. Azarapin, Natalia A. Shelpakova, Klaus Müller-Buschbaum, Yuriy G. Denisenko","doi":"10.3390/inorganics11110434","DOIUrl":"https://doi.org/10.3390/inorganics11110434","url":null,"abstract":"A new polymorphic modification of lanthanum sulfate was obtained by thermal dehydration of the respective nonahydrate. According to powder X-ray diffraction, it was established that β-La2(SO4)3 crystallized in the C2/c space group of the monoclinic system with the KTh2(PO4)3 structure type (a = 17.6923(9), b = 6.9102(4), c = 8.3990(5) Å, β = 100.321(3)°, and V = 1010.22(9) Å3). Temperature dependency studies of the unit cell parameters indicated almost zero expansion along the a direction in the temperature range of 300–450 K. Presumably, this occurred due to stretching of the [LaO9]n chains along the c direction, which occurred without a significant alteration in the layer thickness over the a direction. A systematic study of the formation and destruction processes of the lanthanum sulfates under heating was carried out. In particular, the decisive impact of the chemical composition and formation energy of compounds on the thermodynamic and kinetic parameters of the processes was established. DFT calculations showed β-La2(SO4)3 to be a dielectric material with a bandgap of more than 6.4 eV. The processing of β-La2(SO4)3 with the Kubelka–Munk function exhibited low values below 6.4 eV, which indicated a fundamental absorption edge above this energy that was consistent with LDA calculations. The Raman and infrared measurements of β-La2(SO4)3 were in accordance with the calculated spectra, indicating that the obtained crystal parameters represented a reliable structure.","PeriodicalId":13580,"journal":{"name":"Inorganics (Basel)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135241802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Structural Phase Transitions in the Double Salts (NH4)2PO3F·NH4NO3 and (NH4)2XO4·3NH4NO3 (X = Se, Cr) 双盐(NH4)2PO3F·NH4NO3和(NH4)2XO4·3NH4NO3的结构相变(X = Se, Cr)

Inorganics (Basel) Pub Date : 2023-11-08 DOI: 10.3390/inorganics11110433

Matthias Weil, Thomas Häusler, Barbara Bonneau, Ekkehard Füglein

{"title":"Structural Phase Transitions in the Double Salts (NH4)2PO3F·NH4NO3 and (NH4)2XO4·3NH4NO3 (X = Se, Cr)","authors":"Matthias Weil, Thomas Häusler, Barbara Bonneau, Ekkehard Füglein","doi":"10.3390/inorganics11110433","DOIUrl":"https://doi.org/10.3390/inorganics11110433","url":null,"abstract":"In the context of investigating isostructural relationships between sulfates and monofluorophosphates, crystals of the double salts (NH4)2PO3F·NH4NO3 (AFP·AN) and (NH4)2XO4·3NH4NO3 (AX·3AN; X = Se, Cr) were grown from aqueous solutions and structurally characterized using X-ray diffraction and thermal analysis. Whereas the high-temperature forms of the two AX·3AN double salts are in fact isostructural with the sulfate analogue, AFP·AN crystallizes with a reduced amount of NH4NO3 and thus has a unique crystal structure. Both AFP·AN and the two AX·3AN compounds exhibit reversible structural phase transitions. Upon cooling, the monofluorophosphate double salt transforms from the monoclinic room-temperature polymorph (I; P21/n, Z = 4) to the intermediate triclinic polymorph (II; P1, Z = 4) that in turn transforms to the monoclinic low-temperature polymorph (III; P21/n, Z = 4). The two phase transitions (I) → (II) and (II) → (III) are characterized by a significant increase of the unit cell volumes upon cooling. The two AX·3AN double salts transform upon cooling from a disordered monoclinic crystal structure (P21, Z = 2) to a monoclinic polymorph with a doubled unit cell (P21/c, Z = 4). Such a phase transition is not observed for the sulfate analogue. All molecular moieties are fully ordered at −93 °C for the selenate double salt, whereas one of the nitrate anions remains disordered for the chromate double salt even at −173 °C. In all AFP·AN and AX·3AN crystal structures, the nitrate anions play a crucial role during the phase transitions, and an extensive network of N–H···O hydrogen-bonding interactions is responsible for the cohesion of the crystal.","PeriodicalId":13580,"journal":{"name":"Inorganics (Basel)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135393143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis, Characterization, and Impact of Water on the Stability of Postmodified Schiff Base Containing Metal–Organic Frameworks 含金属有机骨架后修饰希夫碱的合成、表征及水对其稳定性的影响

Inorganics (Basel) Pub Date : 2023-11-08 DOI: 10.3390/inorganics11110432

Nikola D. Radnović, Chris S. Hawes, Branko B. Kordić, Milica G. Bogdanović, Berta Barta Holló, Mirjana M. Radanović, Dušan Đ. Škorić, Branislav D. Jović, Marko V. Rodić

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Mrp and SufT, Two Bacterial Homologs of Eukaryotic CIA Factors Involved in Fe-S Clusters Biogenesis Mrp和SufT:参与Fe-S簇生物发生的真核CIA因子的两个细菌同源物

Inorganics (Basel) Pub Date : 2023-11-03 DOI: 10.3390/inorganics11110431

Corinne Aubert, Pierre Mandin, Béatrice Py

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Antibacterial Activity of Oxygen Vacancy-Mediated ROS Production of V6O13 Powder against Candida albicans 氧空缺介导的活性氧V6O13粉对白色念珠菌的抑菌活性研究

Inorganics (Basel) Pub Date : 2023-11-02 DOI: 10.3390/inorganics11110429

Li Liu, Siyu Li, Detai Shi, Qifu Bao, Tiangui Zhao, Wei Zhu, Xiaolong Li, Jianer Zhou

{"title":"Antibacterial Activity of Oxygen Vacancy-Mediated ROS Production of V6O13 Powder against Candida albicans","authors":"Li Liu, Siyu Li, Detai Shi, Qifu Bao, Tiangui Zhao, Wei Zhu, Xiaolong Li, Jianer Zhou","doi":"10.3390/inorganics11110429","DOIUrl":"https://doi.org/10.3390/inorganics11110429","url":null,"abstract":"The emergence of drug resistance due to the overuse of antibiotics has made the prevention and treatment of invasive fungal infections caused by Candida albicans (C. albicans) a great challenge. Oxygen vacancy-rich inorganic materials show great promise in the antimicrobial field due to their unique physicochemical properties. Defect engineering can significantly optimize the electronic structure of inorganic materials to further enhance their antimicrobial activity. We designed oxygen vacancy defect-rich V6O13 powders using the hydrothermal-calcination method and investigated their anti-C. albicans activity. The results showed that the stronger antibacterial activity is attributed to the fact that the optimized V6O13 powder oxygen vacancy defects induced a reduction reaction of dissolved oxygen in the environment, which produced ROS with strong oxidative properties, causing damage to the wall membrane of C. albicans and leakage of intracellular material. The minimum inhibitory concentration (99% or more inhibition) of V6O13 powders is 4 mg/mL. This work not only provides a facile method for constructing oxygen-rich vacancies in V6O13 powders, but also provides new insights into the potential of inorganic materials optimized by defect engineering for efficient antimicrobial activity.","PeriodicalId":13580,"journal":{"name":"Inorganics (Basel)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135972931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of Surface Defects on Photoinduced Reactivity in SiO2 Nanoparticles 表面缺陷对SiO2纳米颗粒光致反应性的影响

Inorganics (Basel) Pub Date : 2023-11-02 DOI: 10.3390/inorganics11110430

Roberto D’Amato, Giulia Quaglia, Roberta Selvaggi, Fabio Marmottini, Loredana Latterini

{"title":"Role of Surface Defects on Photoinduced Reactivity in SiO2 Nanoparticles","authors":"Roberto D’Amato, Giulia Quaglia, Roberta Selvaggi, Fabio Marmottini, Loredana Latterini","doi":"10.3390/inorganics11110430","DOIUrl":"https://doi.org/10.3390/inorganics11110430","url":null,"abstract":"Silica nanostructured materials find application in different fields, since they are cheap, versatile, and easy to functionalize as materials. However, silica reactivity has not been deeply investigated yet, mainly due to a poor understanding of how it is affected by superficial defects. In the present study, the electronic and optical properties of nanoparticles have been investigated using bare silica nanoparticles (SNP) and amino- or phosphonate-functionalized silica nanoparticles (SNP–APTES and SNP-phosphonate), prepared by a sol-gel procedure, and their morphology has been investigated using transmission electron microscopy (TEM) analysis. The prepared silica nanomaterials were characterized by means of reflectance and emission spectroscopies to determine the types of defects that can be found on silica nanoparticles’ surface. In order to understand the effect of surface defects on the reactivity of silica, the nanoparticles were employed for the photocatalytic degradation of Rhodamine 6G (R6G), upon selective irradiation at 320 nm, where only silica colloids absorb. The photoreaction was carried out in ethanol and in water and was monitored following the fluorescence signal of the dye. The evaluation of the fluorescent intensities allowed for the determination of the degradation efficiencies.","PeriodicalId":13580,"journal":{"name":"Inorganics (Basel)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elimination of Arsenic Using Sorbents Derived from Chitosan and Iron Oxides, Applying Factorial Designs 壳聚糖和氧化铁吸附剂去除砷的析因设计

Inorganics (Basel) Pub Date : 2023-11-01 DOI: 10.3390/inorganics11110428

Marianela Batistelli, Julián Bultri, Mayra Hernandez Trespalacios, María Florencia Mangiameli, Lina Gribaudo, Sebastián Bellú, María Inés Frascaroli, Juan Carlos González

{"title":"Elimination of Arsenic Using Sorbents Derived from Chitosan and Iron Oxides, Applying Factorial Designs","authors":"Marianela Batistelli, Julián Bultri, Mayra Hernandez Trespalacios, María Florencia Mangiameli, Lina Gribaudo, Sebastián Bellú, María Inés Frascaroli, Juan Carlos González","doi":"10.3390/inorganics11110428","DOIUrl":"https://doi.org/10.3390/inorganics11110428","url":null,"abstract":"Arsenic is highly toxic, affecting millions of people in many regions of the world. That is why developing economic and efficient technologies is imperative to eliminate it. Sorption techniques are attractive as efficient and inexpensive sorbents can be used. Chitosan is an abundant, naturally occurring, biodegradable, low-cost biopolymer that can be combined with metal oxide to enhance its removability. This work aimed to synthesize a new chitosan–magnetite-based sorbent for arsenic removal. The synthesized sorbent does not present pores, and when using FT-IR, functional groups of the chitosan and the presence of As(V) in the sorbent treated with arsenic were identified. The synthesized magnetite was characterized using XRD spectroscopy. Application of the central composite design model showed that 0.22 g of the sorbent at pH 6.0 could remove 27.6% of As(V). Kinetic data, fitted with the pseudo-first and -second order models, indicated an ion exchange sorption and activation energy of 28.1–31.4 kJ mol−1. The isotherms were fitted with the Langmuir model, indicating favorable monolayer adsorption with high affinity. The sorption energy calculated using Dubinin Radushkevich, 9.60–8.80 kJ mol−1, confirms a sorption mechanism mediated by ion exchange. The thermodynamic parameters of the process were ΔG° (−21.7/−19.7 kJ mol−1), ΔH°(16.7 kJ mol−1) and ΔS°(123.3 J mol−1 K−1).","PeriodicalId":13580,"journal":{"name":"Inorganics (Basel)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135271265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydroxyapatite–Clay Composite for Bone Tissue Engineering: Effective Utilization of Prawn Exoskeleton Biowaste 羟基磷灰石-粘土复合材料用于骨组织工程:对虾外骨骼生物废弃物的有效利用

Inorganics (Basel) Pub Date : 2023-10-31 DOI: 10.3390/inorganics11110427

Perabathula Satish, Komalakrushna Hadagalli, Lakkimsetti Lakshmi Praveen, Mahin Saif Nowl, Asiful H. Seikh, Ibrahim A. Alnaser, Hany S. Abdo, Saumen Mandal

{"title":"Hydroxyapatite–Clay Composite for Bone Tissue Engineering: Effective Utilization of Prawn Exoskeleton Biowaste","authors":"Perabathula Satish, Komalakrushna Hadagalli, Lakkimsetti Lakshmi Praveen, Mahin Saif Nowl, Asiful H. Seikh, Ibrahim A. Alnaser, Hany S. Abdo, Saumen Mandal","doi":"10.3390/inorganics11110427","DOIUrl":"https://doi.org/10.3390/inorganics11110427","url":null,"abstract":"Hydroxyapatite (HA, Ca10(PO4)6(OH)2)-based porous scaffolds have been widely investigated in the last three decades. HA, with excellent biocompatibility and osteoconductivity, has made this material widely used in bone tissue engineering. To improve the mechano-biological properties of HA, the addition of clay to develop HA-based composite scaffolds has gained considerable interest from researchers. In this study, a cost-effective method to prepare a HA–clay composite was demonstrated via the mechanical mixing method, wherein kaolin was used because of its biocompatibility. Prawn (Fenneropenaeus indicus) exoskeleton biowaste was utilized as a raw source to synthesize pure HA using wet chemical synthesis. HA–clay composites were prepared by reinforcing HA with 10, 20, and 30 wt.% of kaolin via the mechanical mixing method. A series of characterization tools such as XRD, FTIR, Raman, and FESEM analysis confirmed the phases and characteristic structural and vibrations bonds along with the morphology of sintered bare HA, HA–kaolin clay composite, and kaolin alone, respectively. The HA–clay composite pellets, uniaxially pressed and sintered at 1100 °C for 2 h, were subjected to a compression test, and an enhancement in mechanical and physical properties, with the highest compressive strength of 35 MPa and a retained open porosity of 33%, was achieved in the HA–kaolin (20 wt.%) clay composite, in comparison with bare HA. The addition of 20% kaolin to HA enhanced its compressive strength by 33.7% and increased its open porosity by 19% when compared with bare HA. The reinforcement of HA with different amounts (10, 20, 30 wt.%) of kaolin could open up a new direction of preparing biocomposite scaffolds with enhanced mechanical properties, improved wear, and better cell proliferation in the field of bone tissue engineering.","PeriodicalId":13580,"journal":{"name":"Inorganics (Basel)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0