Solid State Sciences最新文献

{"title":"Tailoring structural and chemical properties of ZnO@ g-C3N4 nanocomposites through Sr doping: Insights from multi technique characterization","authors":"Pramod Agale ,&nbsp;Vaibhav Salve ,&nbsp;Santosh Arade ,&nbsp;Sagar Balgude ,&nbsp;Paresh More","doi":"10.1016/j.solidstatesciences.2025.107960","DOIUrl":"10.1016/j.solidstatesciences.2025.107960","url":null,"abstract":"<div><div>Nanocomposites comprising 0–8 % Sr doped ZnO@g-C₃N₄ were synthesized hydrothermally and comprehensively characterized. The study confirmed phase purity and successful Sr doping in ZnO@g-C₃N₄ nanocomposite through X-ray diffraction (XRD) technique. Fourier Transform Infrared Spectroscopy (FTIR) analysis, further supported identification of metal-oxygen bonds as well as various functional groups within the nanocomposites. Field emission scanning electron microscopy (FESEM) imaging revealed hexagonal nano disk-shaped structures of both ZnO@g-C₃N₄ nanocomposite and Sr-ZnO@g-C₃N₄ nanocomposite, a finding corroborated by Transmission Electron Microscopy (TEM) observations. Energy dispersive X-ray Spectroscopy <strong>(</strong>EDAX) analysis confirmed the elemental composition of the synthesized nanocomposites. Optical properties of pristine ZnO and Sr-ZnO@g-C₃N₄ nanocomposite were examined using Ultraviolet–Visible (UV–Visible) spectroscopy. With the increase in the percentages of Sr (from 0 to 5 %), the red shift of Sr-doped ZnO intensifies, which confirm higher levels of Sr doping. Whereas Sr with 7 and 8 % percent in ZnO, there is decrease in absorption, this is due to the increased of Sr content within the ZnO. X-ray photoelectron spectroscopy (XPS) provided insights into the oxidation states of elements, particularly in the 5 % Sr-ZnO@g-C₃N₄ nanocomposite. The Photoluminescence (PL) spectra of as-synthesized samples were carried out to check the charge carrier dynamics and defect states within the nanocomposite materials. The synthesized Sr-ZnO@g-C₃N₄ nanocomposites may find its uses in the energy storage devices, environmental remediation, and organic transformations.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"166 ","pages":"Article 107960"},"PeriodicalIF":3.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of GeNx films with different nitrogen ratios: An experimental and DFT analysis","authors":"Birsen Kesik Zeyrek ,&nbsp;Fahrettin Sarcan ,&nbsp;Konstantin Katin ,&nbsp;Savaş Kaya ,&nbsp;Fatih Ungan ,&nbsp;Ayşe Erol ,&nbsp;Ebru Şenadım Tüzemen","doi":"10.1016/j.solidstatesciences.2025.107959","DOIUrl":"10.1016/j.solidstatesciences.2025.107959","url":null,"abstract":"<div><div>In this study, GeN_x thin films with varying nitrogen ratios (30 %, 50 %, and 70 %) were deposited on sapphire and silicon substrates at room temperature using the RF magnetron sputtering technique. Optical properties of the films deposited on sapphire were characterized using UV–VIS–NIR spectrophotometry, which provided insights into their transmittance and energy band gap values. For films grown on silicon, spectroscopic ellipsometry was employed to determine their refractive indices. The XRD patterns of the films grown on sapphire indicated the presence of the (220) crystallographic plane of GeN_x, which became pronounced in the sample produced with 50 % nitrogen content. Notably, the energy band gap of the films varied between 3.40 eV and 4.10 eV, exhibiting a dependence on the nitrogen ratio as it increased from 30 % to 70 %. Similarly, a change in the refractive index values was observed with increasing nitrogen ratio. It was observed that the film with a 30 % nitrogen ratio had the highest refractive index. The mode at ∼303 cm⁻¹ for both films grown on Si and sapphire is well-known TO (c-Ge) vibration. To further support and validate the experimental findings, Density Functional Theory (DFT) calculations were performed to correlate the experimentally determined energy band gaps. It was observed that the experimentally found energy band gap values, especially the 30 % nitrogen film, were very close to γ-Ge₃N₄ from theoretical calculations. This computational approach enhanced the reliability and consistency of the results.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"166 ","pages":"Article 107959"},"PeriodicalIF":3.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical studies of Dy2O3 doped phosphate glasses for potential white luminescence applications","authors":"Amel Abdallah ,&nbsp;Chaker Bouzidi","doi":"10.1016/j.solidstatesciences.2025.107958","DOIUrl":"10.1016/j.solidstatesciences.2025.107958","url":null,"abstract":"<div><div>Phosphate glasses with chemical compositions of (60-x) P₂O₅-15ZnO-15CaCO₃-10Li₂CO₃-xDy₂O₃ (where x = 0, 0.25, 0.5, 0.75 and 1 mol %) have been synthesized by melt quenching method. The prepared glasses were characterized by various techniques such as X-ray powder diffraction (XRD), Atomic Force Microscopy (AFM), Differential Scanning Calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), photoluminescence (PL) and Judd-Ofelt (JO) theoretical model. X-ray diffraction indicates that all samples have an amorphous structure. The Atomic Force Microscopy (AFM) observation of PZCL revealed smooth surface and high quality, characterized by specific roughness parameters (R_a = 2.540, R_z = 11.441, R_max = 13.961, R_q = 3.100 nm) and presented in the form of 3D,2D surface topography. DSC measurements show that PZCLD1 have a good thermal stability among the sample and reached ΔT = 148 °C after adding Dy³⁺. The FTIR spectra confirming an increase of non-bridging oxygen (NBO) by addition of Dy₂O₃. The emission spectra presented three main bands at 491, 575 and 673 nm corresponding to the ⁴F_9/2 → ⁶H_15/2, ⁴F_9/2 → ⁶H_13/2 and ⁴F_9/2 → ⁶H_11/2 transitions, respectively. The luminescence concentration quenching point is observed at 0.5 mol % of Dy₂O₃. The Judd–Ofelt (JO) theory was applied to the absorption bands to determine the phenomenological parameters (Ω₂, Ω₄ and Ω₆ calculated subsequently). It was discovered that the JO parameters are in the following order: Ω₂&gt; Ω₄&gt; Ω₆. These parameters were then used to evaluate key radiative properties, including the total spontaneous transition probability (<em>A</em>_<em>T</em>),the stimulated emission cross-section (<em>σ</em>_<em>e</em>), effective bandwidth (Δλ_eff),the radiative lifetime (<em>τ</em>_<em>rad</em>) and the radiative branching ratio (<em>β</em>_<em>rad</em>) for excited luminescent states. The radiative lifetime of PZCLD0.5 τ_r_ad = 1.31 ms calculated by Judd–Ofelt theory and experimental lifetime <span><math><mrow><mi>τ</mi></mrow></math></span>_exp = 0.98 ms for the level ⁴F_9/2 decreases as Dy³⁺ concentration increases. Moreover, the quantum efficiency (η = 74.80 %) of PZCLD0.5 indicates that the present material holds strong potential as a candidate for laser emission at 575 nm. The CIE coordinates is found to be x = 0.333 and y = 0.334 revealed that the present sample falls within the white region. The typical CCT value of PZCLD0.5 is estimated to be around 5471 K.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107958"},"PeriodicalIF":3.4,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis of antibacterial Ge-Sr phosphate scaffolds enhanced with eco-friendly pore-forming agents for biomedical use","authors":"Ekaterina R. Kolomenskaya ,&nbsp;Vera V. Butova ,&nbsp;Igor L. Shukaev ,&nbsp;Alexander D. Zagrebaev ,&nbsp;Alexander V. Soldatov","doi":"10.1016/j.solidstatesciences.2025.107952","DOIUrl":"10.1016/j.solidstatesciences.2025.107952","url":null,"abstract":"<div><div>This study investigates the development of composite ceramics for application in hard tissue augmentation, using GeO₂ and germanium-strontium phosphates as base materials. Various pore-forming agents, including cetyltrimethylammonium bromide (CTB), polyethylene (PE), caffeine (CFF), and natural materials such as lemon peel (LMN), silk (SLK), loofah (LFH), and yam (YAM), were employed to introduce porosity into the scaffolds. The impact of these agents on phase composition, particle size, and surface properties was analyzed, revealing that some agents induced phase transformations, while others preserved a multi-phase structure. The incorporation of phosphorus and strontium into the scaffolds to enhance bioactivity was evaluated using XRF analysis. The scaffolds' porosity, particularly meso- and macroporosity, was significantly influenced by the pore-forming agents. Antimicrobial activity, demonstrated against both gram-negative and gram-positive bacteria, was also an important factor for scaffolds intended for medical implants and wound healing. Among the materials tested, SGP-SLK and SGP-CTB showed the most promising results, combining excellent bioactivity, enhanced bone regeneration potential, and superior antimicrobial performance. These findings suggest that composite scaffolds incorporating phosphorus, strontium, and suitable porosity are promising candidates for tissue engineering applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107952"},"PeriodicalIF":3.4,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel red-light-excitable Sm3+-doped Gd2MgTiO6 phosphor for plant growth lighting","authors":"Haochang Ye ,&nbsp;Wei Zhang ,&nbsp;Xuxin Cheng ,&nbsp;Canhui Pan ,&nbsp;Yini Li ,&nbsp;Zuyong Feng ,&nbsp;Haopeng Kong ,&nbsp;Zhengfa Hu","doi":"10.1016/j.solidstatesciences.2025.107957","DOIUrl":"10.1016/j.solidstatesciences.2025.107957","url":null,"abstract":"<div><div>Gd_2-<em>x</em>MgTiO₆:<em>x</em>Sm³⁺ (x = 0.02–0.12) phosphors were prepared using high-temperature solid-state synthesis. Systematic characterization encompassed phase purity, crystal structure, luminescence properties, and thermal stability. Upon 406 nm excitation, distinct red emission arises from Sm³⁺ ions' ⁴G_5/2→⁶H_j (j = 5/2, 7/2, 9/2, 11/2) transitions. The Gd_1.94MgTiO₆:0.06Sm³⁺ specimen demonstrates exceptional thermal stability, maintaining 80.74 % emission intensity retention at 150 °C compared to ambient measurements. Fabricated LED prototypes combining 405 nm chips with this phosphor yield intense red emission, whose spectral overlap with chlorophyll <em>a</em>/b absorption bands and phytochrome P_R/P_FR profiles suggests applicability in plant growth lighting systems.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107957"},"PeriodicalIF":3.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal growth, thermal, optical, magnetic and electrochemical properties of Mo2Ta2O11","authors":"Md Abdullah Al Muhit ,&nbsp;Alevtina A. Maksimova ,&nbsp;Sean C. Wechsler,&nbsp;Habiba Binte Kashem,&nbsp;Gopabandhu Panigrahi,&nbsp;Gregory Morrison,&nbsp;Morgan Stefik,&nbsp;Hans-Conrad zur Loye","doi":"10.1016/j.solidstatesciences.2025.107951","DOIUrl":"10.1016/j.solidstatesciences.2025.107951","url":null,"abstract":"<div><div>Single crystals of the transition metal oxide Mo₂Ta₂O₁₁ were grown for the first time using molten flux synthesis. The compound crystalizes in the trigonal space group <em>R</em> <span><math><mrow><mover><mn>3</mn><mo>‾</mo></mover><mi>m</mi></mrow></math></span> (no. 166) with lattice parameters <em>a</em> = <em>b</em> = 5.6267(1) Å and <em>c</em> = 25.1424(6) Å and a unit cell volume of 689.36(3) ų. The structure of Mo₂Ta₂O₁₁ is composed of alternating layers of TaO₆ octahedra and MoO₄ tetrahedra connected via corner-sharing. CaH₂ was used to achieve a partial low temperature reduction of Mo₂Ta₂O₁₁. The electrochemical lithiation of polycrystalline Mo₂Ta₂O₁₁ was also investigated for the first time. Mo₂Ta₂O₁₁ underwent a structural rearrangement while maintaining a reversible capacity of ∼150 mAh/g.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107951"},"PeriodicalIF":3.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143907469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bound magnetic polarons, phonon confinement and charge transfer effects in Cr2O3/SiO2 composites","authors":"Akshay Kumar ,&nbsp;Mohit K. Sharma ,&nbsp;Naveen Yadav ,&nbsp;Ankush Vij ,&nbsp;Manish Kumar ,&nbsp;Seok-Hwan Huh ,&nbsp;Jong-Woo Kim ,&nbsp;Bon Heun Koo","doi":"10.1016/j.solidstatesciences.2025.107943","DOIUrl":"10.1016/j.solidstatesciences.2025.107943","url":null,"abstract":"<div><div>Cr₂O₃/SiO₂ composites with varying Cr₂O₃ content (10 %, 30 %, and 50 %) were synthesized and systematically analyzed for their structural, vibrational, chemical, and magnetic properties. X-ray diffraction (XRD) confirmed the successful incorporation of Cr₂O₃ into the SiO₂ matrix, with a gradual increase in Cr₂O₃ phase fraction and a minor shrinkage in lattice volume, indicative of strong interparticle interactions. Raman spectra exhibited a systematic redshift and peak broadening in the characteristic Cr₂O₃ mode, indicative of interfacial strain and phonon confinement, while Raman mapping revealed phase clustering at higher Cr₂O₃ content. X-ray photoelectron spectroscopy (XPS) identified a higher Cr⁶⁺ fraction at increased Cr₂O₃:SiO₂ fractions, indicating enhanced Cr-O-Si interactions. Magnetic measurements at 50 K and 300 K demonstrated dominant antiferromagnetic behavior alongside weak ferromagnetic contributions, attributed to defect-induced bound magnetic polarons (BMPs). BMP density increased with Cr₂O₃ content, highlighting localized spin interactions at the Cr₂O₃/SiO₂ interface. These findings elucidate the interplay of structural stability, charge transfer, and defect-mediated magnetism, offering insights for optimizing Cr₂O₃/SiO₂ composites in spintronic, magneto-optical, and catalytic applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107943"},"PeriodicalIF":3.4,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A detailed investigation into the curing kinetics of zinc borate-epoxy composites","authors":"Gülden Kabakçı ,&nbsp;Sümeyye Caner ,&nbsp;Cennet Yıldırım ,&nbsp;Berdan Sakallı ,&nbsp;Zeliha Bengisu Yakışık ,&nbsp;Esra Babür ,&nbsp;Güler Bengüsu Tezel ,&nbsp;Mert Kılınçel","doi":"10.1016/j.solidstatesciences.2025.107926","DOIUrl":"10.1016/j.solidstatesciences.2025.107926","url":null,"abstract":"<div><div>Epoxy resins (E) are widely used in composite applications due to their superior properties such as lightweight, manufacturing flexibility, and compatibility with numerous reinforcement elements. To enhance these properties and mitigate drawbacks like low toughness, curing agents that improve chain linkages and nanofillers are employed. Nano-sized zinc borates (ZB), commercially available materials, are frequently studied for improving the thermal stability, mechanical strength, and fire resistance of polymeric structures. ZB, with the formula 2ZnO·3B₂O₃·3.5H₂O, is a white crystalline nanomaterial that possesses low toxicity, anti-corrosive properties, low density, and compatibility with various polymers. Although many studies focus on improving the thermal stability and mechanical properties of ZB-epoxy composites (ZB-E), research on curing processes remains limited. However, selecting parameters like temperature and curing duration under system transformations is crucial for composite production. Curing kinetic parameters are essential for accurately analyzing these processes. This study evaluates the curing process of epoxy systems containing different mass fractions of ZB (2-4-6-8-10 %) through dynamic differential scanning calorimetry (DSC) tests. DSC analyses were conducted at various heating rates (3-6-9 °C/min) with a final curing temperature of 120 °C. The obtained data were analyzed using different phenomenological kinetic equation models (Kissinger, Flynn-Wall-Ozawa, Boswell, and Moynihan) in Matlab-R2019b, and the curing kinetic parameters were calculated. At the same time, the reaction order was calculated using the Crane method. In the final stage, Arrhenius equations were applied to determine the activation energies of the systems. This study assesses the influence of ZB addition on epoxy curing kinetics and the activation energies of ZB-E structures. The activation energy (E_a) values calculated from different models (Kissinger, FWO, Moynihan, and Boswell) show some variation, but the overall trend is consistent: as the ZB content increases, the activation energy generally decreases. The E_a value calculated using the Kissinger, FWO, Moynihan, and Boswell methods decreases by approximately 35.48 %, 33.27 %, 33.27 %, and 34.63 % respectively, when the ZB content increases from 0 % to 10 %. It also provides a new perspective for pre-production optimization and characterization of composite curing systems, aiming to reduce manufacturing costs and production times.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107926"},"PeriodicalIF":3.4,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In situ growth of nickel cobalt sulfide on carbon cloth by electrodeposition as binder-free electrode for supercapacitor","authors":"You Wang ,&nbsp;Lianzhen Liao ,&nbsp;Quanwen Xie ,&nbsp;Zhoulan Yin","doi":"10.1016/j.solidstatesciences.2025.107941","DOIUrl":"10.1016/j.solidstatesciences.2025.107941","url":null,"abstract":"<div><div>Development of binder-free electrode of pseudocapacitive material with excellent cycling stability for supercapacitor shows great attraction in energy storage market. Here, nickel cobalt sulfide (NCS) has been successfully grown on carbon cloth (CC) by electrodeposition in a sulfate-based electrolyte solution with thiourea (TU) as sulfur source and chelation agent. The results show that the chemical composition, microstructure and electrochemical performance of the as-prepared electrode can be modulated by tunning the deposition overpotential. The oriented growth of NCS nanosheets driven by electric field coupled with thiourea adsorption endows the deposits with intersected porous nanosheet-array microstructures, which enables the fast electronic and ionic transmissions. The optimal electrode prepared under −1.0 V (vs Ag/AgCl) (denoted as NC2S200–1.0/CC) can deliver a discharge specific capacitance of 909.5 F g⁻¹ at 1 A g⁻¹, which can maintain 89.2 % at 10 A g⁻¹, demonstrating outstanding rate performance. As successively charging and discharging for 4000 cycles at 5 A g⁻¹, 120.6 % of the initial value can be retained, illustrating exceptional cyclic stability. In addition, the assembled NC2S200–1.0/CC//AC asymmetric supercapacitor can exhibit an energy density of 26.2 Wh kg⁻¹ which corresponds to a power density of 821.1 W kg⁻¹, when charging-discharging at 2 A g⁻¹ for 10000 cycles, a capacitance retention of 75.5 % can be achieved, manifesting good cycling stability. This work provides a new idea for fabricating transition metal sulfides supported binder-free electrode by electrodeposition.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107941"},"PeriodicalIF":3.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual pathways catalytic degradation of tetracycline realized by biochar supported Fe-MIL-88B derivative nanocomposite","authors":"Mengmeng Yu ,&nbsp;Chuanyue Yang ,&nbsp;Yan Liu ,&nbsp;Ling Yin ,&nbsp;Longjiang Sun ,&nbsp;Jingquan Sha","doi":"10.1016/j.solidstatesciences.2025.107940","DOIUrl":"10.1016/j.solidstatesciences.2025.107940","url":null,"abstract":"<div><div>Due to tetracycline's (TC) stable structure and low biodegradation, developing a highly cost-effective and efficient catalyst for the elimination of TC holds significant importance. In this study, series of innovative core-shell Fe/Fe₃C@BC-0 and Fe/Fe₃C@BC-x (x = 0.3, 0.5, 1) nanocomposites were successfully synthesized, where Fe/Fe₃C@BC-x were synthesized by high-temperature calcination precursor of loading Fe-MIL-88B onto the surface of biochar (BC) from peanut hulls in situ. The effects of Fe/Fe₃C@BC-0 and Fe/Fe₃C@BC-x dosage, PDS concentration, initial pH, initial TC concentration, and coexisting anions on TC removal were studied. In comparison with the oxidation (5.8 %) by PDS alone, BC (32.6 %) and Fe/Fe₃C@BC-0 (72.6 %) in the PDS + TC system, respectively, Fe/Fe₃[email protected] exhibited exceptional degradation performance, 99.55 % degradation efficiency within just 30 min, and degradation rate constant (K value) of 0.18 min⁻¹, which is quadruple higher than that in Fe/Fe₃C@C-0+PDS (0.043 min⁻¹). The outstanding efficiency of Fe/Fe₃C@BC-x (x = 0.3, 0.5, 1) can be attributed to the presence of dual degradation pathways, namely, radical (O₂^•-, •OH, and SO₄^•-) and nonradical (¹O₂) degradation. This research opens up new possibilities for designing novel catalysts based on MOFs derivative nanocomposite and biochar materials.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"165 ","pages":"Article 107940"},"PeriodicalIF":3.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}