Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2024.107811
R. Srimathi , N.V.S.S. Seshagiri Rao , A. Merlin , R. Kiruthika , A. Selvaraj , Omar H. Abd-Elkader , Chandra Sekhar Dash , S. Revathi , Anis Ahamed , Jothi Ramalingam Rajabathar , M. Sundararajan , S. Yuvaraj , L. Rajadurai
{"title":"Corrigendum to “Investigation of structural, magnetic, optical and dielectric characteristics of Al-doped MgFe2O4 nanoparticles” [Solid State Sci. 159 (2025) 107761]","authors":"R. Srimathi , N.V.S.S. Seshagiri Rao , A. Merlin , R. Kiruthika , A. Selvaraj , Omar H. Abd-Elkader , Chandra Sekhar Dash , S. Revathi , Anis Ahamed , Jothi Ramalingam Rajabathar , M. Sundararajan , S. Yuvaraj , L. Rajadurai","doi":"10.1016/j.solidstatesciences.2024.107811","DOIUrl":"10.1016/j.solidstatesciences.2024.107811","url":null,"abstract":"","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107811"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098776","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}
Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2024.107820
Meng-Jie Chang, Xin Li, Jun Liu, Ge Bai, Qiu-Yu Hu
Water glass (WG)-based aerogels (WAGs) are challenged with requirement of acid catalyst and poor mechanical property. In this work, we have developed a novel formamide (FA) as catalyst for gelation of WG at alkaline condition to prepare WAG monolith under atmospheric pressure drying (APD). The FA serves both as the catalyst by hydrolyzing product formic acid and drying control agent. The effect of the gelation temperature, FA dosage, and WG concentration on the gelation time, density, shrinkage and microstructure of the aerogels were analyzed. The optimum WAG monolith shows a low shrinkage of 20 % and density of 0.165 g cm−3, as well as large specific surface area of 229.4 m2 g−1 and superhydrophobic surface. The connected nanoparticle into three-dimensional network endows the WAG monolith with good mechanical property. Due to the low-cost, easy fabrication process and free usage of acids, the method expands the synthesis of aerogel monolith.
{"title":"Formamide as novel catalyst for the gelation of water glass to synthesize silica aerogel monolith","authors":"Meng-Jie Chang, Xin Li, Jun Liu, Ge Bai, Qiu-Yu Hu","doi":"10.1016/j.solidstatesciences.2024.107820","DOIUrl":"10.1016/j.solidstatesciences.2024.107820","url":null,"abstract":"<div><div>Water glass (WG)-based aerogels (WAGs) are challenged with requirement of acid catalyst and poor mechanical property. In this work, we have developed a novel formamide (FA) as catalyst for gelation of WG at alkaline condition to prepare WAG monolith under atmospheric pressure drying (APD). The FA serves both as the catalyst by hydrolyzing product formic acid and drying control agent. The effect of the gelation temperature, FA dosage, and WG concentration on the gelation time, density, shrinkage and microstructure of the aerogels were analyzed. The optimum WAG monolith shows a low shrinkage of 20 % and density of 0.165 g cm<sup>−3</sup>, as well as large specific surface area of 229.4 m<sup>2</sup> g<sup>−1</sup> and superhydrophobic surface. The connected nanoparticle into three-dimensional network endows the WAG monolith with good mechanical property. Due to the low-cost, easy fabrication process and free usage of acids, the method expands the synthesis of aerogel monolith.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107820"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097798","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}
Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2024.107805
Tania Kalsi , Nupur Saxena , Pragati Kumar
High-performance photodetectors (PDs) with broadband (BB) responses are crucial for many optoelectronic and imaging technologies. In the present work, BBPDs were fabricated employing simple spin coated thin films (TFs) of Cd(1-x)AgxS colloidal quantum dots (CQDs), where x = 0.0 to 0.05. The x-ray diffraction (XRD) patterns of TFs confirm the formation of a cubic phase with a crystallite size very close to Bohr's atomic radius. The existence of microstructural defects like twinning/multiple twinning was confirmed by HRTEM images of the undoped and 3 wt% Ag-doped CdS QDs. The spectral tunability along with modifications in detector characteristic parameters were observed with varying concentrations of Ag. The maximum value of various performance parameters like sensitivity (S), responsivity (R), detectivity (D), and external quantum efficiency (EQE) were estimated as ∼ 1.95 × 104 %, 14.67 A/W, 4.84 × 1012 cmHz1/2W−1, and 3.8 × 103 %, respectively. Besides, the response speed of PD was also improved by twofold due to the insertion of Ag. The fastest PD responds within 104 ms (rise time)/98 ms (fall time). The present work demonstrates BB spectral (405 nm–845 nm) detection by Cd(1-x)AgxS CQDs-based PDs and tunability in the selectivity and detectable wavelength with variation of Ag dopant. The device S3 is the fastest and demonstrated the highest S and D among all devices under 782 nm illumination; however, S1 is optimised for PD in the present study as it delivered the best performance in the said BB spectral region with a reasonably good response speed of 200 ms.
{"title":"Augmenting the broadband feature in CdS CQDs thin film photodetectors by Ag assimilation","authors":"Tania Kalsi , Nupur Saxena , Pragati Kumar","doi":"10.1016/j.solidstatesciences.2024.107805","DOIUrl":"10.1016/j.solidstatesciences.2024.107805","url":null,"abstract":"<div><div>High-performance photodetectors (PDs) with broadband (BB) responses are crucial for many optoelectronic and imaging technologies. In the present work, BBPDs were fabricated employing simple spin coated thin films (TFs) of Cd<sub>(1-x)</sub>Ag<sub>x</sub>S colloidal quantum dots (CQDs), where x = 0.0 to 0.05. The x-ray diffraction (XRD) patterns of TFs confirm the formation of a cubic phase with a crystallite size very close to Bohr's atomic radius. The existence of microstructural defects like twinning/multiple twinning was confirmed by HRTEM images of the undoped and 3 wt% Ag-doped CdS QDs. The spectral tunability along with modifications in detector characteristic parameters were observed with varying concentrations of Ag. The maximum value of various performance parameters like sensitivity (S), responsivity (R), detectivity (D), and external quantum efficiency (EQE) were estimated as ∼ 1.95 × 10<sup>4</sup> %, 14.67 A/W, 4.84 × 10<sup>12</sup> cmHz<sup>1/2</sup>W<sup>−1</sup>, and 3.8 × 10<sup>3</sup> %, respectively. Besides, the response speed of PD was also improved by twofold due to the insertion of Ag. The fastest PD responds within 104 ms (rise time)/98 ms (fall time). The present work demonstrates BB spectral (405 nm–845 nm) detection by Cd<sub>(1-x)</sub>Ag<sub>x</sub>S CQDs-based PDs and tunability in the selectivity and detectable wavelength with variation of Ag dopant. The device <em>S</em><sub><em>3</em></sub> is the fastest and demonstrated the highest <em>S</em> and <em>D</em> among all devices under 782 nm illumination; however, <em>S</em><sub><em>1</em></sub> is optimised for PD in the present study as it delivered the best performance in the said BB spectral region with a reasonably good response speed of 200 ms.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107805"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098235","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}
The analysis of baro- and piezo-caloric effects in ferroelectrics and ferroelastics containing tetrahedral and octahedral ion groups in the structure is carried out. The role of the degree of structural disorder in the formation of both effects is discussed. The features of the caloric response at phase transitions of different proximity to the tricritical point are revealed. The strong piezocaloric anisotropy of the studied materials is a convenient tool for extending the operating temperature range of the cooling cycle. An important advantage of ferroelastics and ferroelectrics undergoing transformations of the first order is the combination in one material of low thermal hysteresis and high sensitivity to hydrostatic and/or uniaxial pressure.
{"title":"Features of the formation of baro- and piezocaloric effects in ferroelastics and ferroelectrics","authors":"I.N. Flerov , M.V. Gorev , E.V. Bogdanov , V.S. Bondarev , E.A. Mikhaleva","doi":"10.1016/j.solidstatesciences.2024.107799","DOIUrl":"10.1016/j.solidstatesciences.2024.107799","url":null,"abstract":"<div><div>The analysis of baro- and piezo-caloric effects in ferroelectrics and ferroelastics containing tetrahedral and octahedral ion groups in the structure is carried out. The role of the degree of structural disorder in the formation of both effects is discussed. The features of the caloric response at phase transitions of different proximity to the tricritical point are revealed. The strong piezocaloric anisotropy of the studied materials is a convenient tool for extending the operating temperature range of the cooling cycle. An important advantage of ferroelastics and ferroelectrics undergoing transformations of the first order is the combination in one material of low thermal hysteresis and high sensitivity to hydrostatic and/or uniaxial pressure.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107799"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098360","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}
In this study, we synthesized BaO-SiO2-P2O5 glasses doped with 5.0, 10, 15, and 20 % Ce by a melt-quenching method and investigated XRD patterns, transmittance spectra, photoluminescence properties, and scintillation properties. The 5.0–15 % samples were transparent and colorless, while the 20 % sample was colored yellow. All samples indicated only a halo peak, which is characteristic of an amorphous. The absorption originated from the 4f-5d transitions of Ce3+, and the charge transfer of O2--Ce4+ was observed at 280–310 and 250–370 nm, respectively. Photoluminescence of the 5d-4f transitions of Ce3+ was detected in all samples, and the 5.0–15 % samples showed high quantum yields of 86–90 %. As a result of measurements of scintillation properties, the 15 % sample indicated the highest light yield of 685 photons/MeV and an energy resolution of 21 %.
{"title":"Scintillation light yields of Ce-doped BaO-SiO2-P2O5 glasses synthesized by the melt-quenching method","authors":"Akihiro Nishikawa , Daiki Shiratori , Takumi Kato , Daisuke Nakauchi , Noriaki Kawaguchi , Takayuki Yanagida","doi":"10.1016/j.solidstatesciences.2024.107807","DOIUrl":"10.1016/j.solidstatesciences.2024.107807","url":null,"abstract":"<div><div>In this study, we synthesized BaO-SiO<sub>2</sub>-P<sub>2</sub>O<sub>5</sub> glasses doped with 5.0, 10, 15, and 20 % Ce by a melt-quenching method and investigated XRD patterns, transmittance spectra, photoluminescence properties, and scintillation properties. The 5.0–15 % samples were transparent and colorless, while the 20 % sample was colored yellow. All samples indicated only a halo peak, which is characteristic of an amorphous. The absorption originated from the 4f-5d transitions of Ce<sup>3+</sup>, and the charge transfer of O<sup>2-</sup>-Ce<sup>4+</sup> was observed at 280–310 and 250–370 nm, respectively. Photoluminescence of the 5d-4f transitions of Ce<sup>3+</sup> was detected in all samples, and the 5.0–15 % samples showed high quantum yields of 86–90 %. As a result of measurements of scintillation properties, the 15 % sample indicated the highest light yield of 685 photons/MeV and an energy resolution of 21 %.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107807"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098784","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}
Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2024.107809
M. Widom
The B-Pt alloy system contains several Pt-rich phases exhibiting complex structures, many with partial site occupation. It also exhibits a deep (nearly 1000 °C) eutectic. We evaluate the ab-initio total energies of the crystalline solids to clarify the identity and character of the phases. Our work identifies inconsistencies in materials databases such as the Inorganic Crystallographic Structure Database and the ASM Phase Diagram Database, but our total energy calculations allow us to match up experimentally reported stable phases with specific structures. High temperature Gibbs free energy calculations in the liquid and solid states at the composition PtB reveal that the depth of the eutectic arises from the low energy and high entropy of the liquid state.
{"title":"First principles investigation of phase stability in the B-Pt alloy system","authors":"M. Widom","doi":"10.1016/j.solidstatesciences.2024.107809","DOIUrl":"10.1016/j.solidstatesciences.2024.107809","url":null,"abstract":"<div><div>The B-Pt alloy system contains several Pt-rich phases exhibiting complex structures, many with partial site occupation. It also exhibits a deep (nearly 1000 °C) eutectic. We evaluate the <em>ab-initio</em> total energies of the crystalline solids to clarify the identity and character of the phases. Our work identifies inconsistencies in materials databases such as the Inorganic Crystallographic Structure Database and the ASM Phase Diagram Database, but our total energy calculations allow us to match up experimentally reported stable phases with specific structures. High temperature Gibbs free energy calculations in the liquid and solid states at the composition Pt<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>B reveal that the depth of the eutectic arises from the low energy and high entropy of the liquid state.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107809"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2024.107814
Shuang Zhao , Yukun Li , Guoqiang Sun , Jingjing Yu , Youqiang Xi
The force‒magnetic coupling effect of ferromagnetic materials is the result of the macroscopic influence of mechanical properties on magnetic properties under the joint action of a stress field and an applied magnetic field, which can essentially be attributed to the transformation of the microscopic structure of the magnetic domain leading to a change in material properties. Taking X80 pipeline steel as an example, the effect of stress on important magnetic parameters (maximum value of the applied magnetic field, value of coercivity, and value of residual magnetic induction) of ferromagnetic materials is investigated under different excitation intensities. The results indicate that the coercivity has the highest degree of sensitivity to stress. With full consideration of the effect of the leakage magnetic field of a semiclosed magnetic circuit, the coercivity is corrected by applying a magnetic conductive adhesive. At the same time, a combination of theoretical derivations and experiments is used to obtain the force‒magnetism coupling equation based on the principle of energy minimization, clarify the relationship model between coercivity and stress, and obtain the response law of coercivity to stress in the stages of elasticity and plastic deformation.
{"title":"Force‒magnetic coupling effect of X80 pipeline steel: A study of the coercivity‒stress relationship","authors":"Shuang Zhao , Yukun Li , Guoqiang Sun , Jingjing Yu , Youqiang Xi","doi":"10.1016/j.solidstatesciences.2024.107814","DOIUrl":"10.1016/j.solidstatesciences.2024.107814","url":null,"abstract":"<div><div>The force‒magnetic coupling effect of ferromagnetic materials is the result of the macroscopic influence of mechanical properties on magnetic properties under the joint action of a stress field and an applied magnetic field, which can essentially be attributed to the transformation of the microscopic structure of the magnetic domain leading to a change in material properties. Taking X80 pipeline steel as an example, the effect of stress on important magnetic parameters (maximum value of the applied magnetic field, value of coercivity, and value of residual magnetic induction) of ferromagnetic materials is investigated under different excitation intensities. The results indicate that the coercivity has the highest degree of sensitivity to stress. With full consideration of the effect of the leakage magnetic field of a semiclosed magnetic circuit, the coercivity is corrected by applying a magnetic conductive adhesive. At the same time, a combination of theoretical derivations and experiments is used to obtain the force‒magnetism coupling equation based on the principle of energy minimization, clarify the relationship model between coercivity and stress, and obtain the response law of coercivity to stress in the stages of elasticity and plastic deformation.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107814"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097797","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}
Photoluminescence and scintillation properties of 0.1%, 0.5%, 1.0%, and 5.0% Er:CaHfO3 single crystals were synthesized and evaluated. The photoluminescence and scintillation spectra showed several emission peaks originating from the 4f–4f transitions of Er3+ in visible and near-infrared regions. Dose-rate-response of 0.5%, 1.0%, and 5.0% Er:CaHfO3 samples showed an excellent linear relationship between dose rate and output signal intensity across the range of 0.0025–51 Gy/h. Based on the results, the 1.0% Er:CaHfO3 sample exhibited the best performance among all the Er:CaHfO3 samples.
{"title":"Development of Er-doped CaHfO3 single-crystal-scintillators emitting near-infrared photons","authors":"Yusuke Endo, Kensei Ichiba, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida","doi":"10.1016/j.solidstatesciences.2024.107783","DOIUrl":"10.1016/j.solidstatesciences.2024.107783","url":null,"abstract":"<div><div>Photoluminescence and scintillation properties of 0.1%, 0.5%, 1.0%, and 5.0% Er:CaHfO<sub>3</sub> single crystals were synthesized and evaluated. The photoluminescence and scintillation spectra showed several emission peaks originating from the 4f–4f transitions of Er<sup>3+</sup> in visible and near-infrared regions. Dose-rate-response of 0.5%, 1.0%, and 5.0% Er:CaHfO<sub>3</sub> samples showed an excellent linear relationship between dose rate and output signal intensity across the range of 0.0025–51 Gy/h. Based on the results, the 1.0% Er:CaHfO<sub>3</sub> sample exhibited the best performance among all the Er:CaHfO<sub>3</sub> samples.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107783"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098783","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}
Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2025.107831
Sin Ling Chiam , C.P. Leo , Swee-Yong Pung , Wei Lun Ang
The presence of pharmaceutical drugs and organic dyes in water poses significant concerns for both human health and the environment. While photocatalysts offer an effective means of pollutant degradation without generating secondary waste, they are commonly limited by charge recombination and small particle size for large-scale practical use. In this study, BiOCl was chemically deposited on MnO2 and immobilization in the polyvinyl alcohol hydrogel thin films for the photodegradation of Rhodamine B and Ibuprofen under visible light. The plate-like BiOCl successfully grown between nanoflowers of MnO₂, as proven by scanning and transmission electron microscopy images. Energy dispersive X-ray analysis and Fourier-transform infrared spectroscopy results affirmed the chemical characteristics of BiOCl and MnO₂, while X-ray diffraction patterns confirmed the crystallinity of BiOCl and MnO₂. Optimizing the BiOCl loading, 2:1 in ratio with MnO2 yielded a PVA thin film with high photocatalytic activity. 99 % of Rhodamine and 97 % of Ibuprofen were degraded in 60 min and 90 min respectively. Even after five recycles, the catalyst maintained over 80 % efficiency for RhB and 70 % for Ibuprofen. The degradation was primarily driven by •O2− and e− generated by the MnO2 and BiOCl composite. This study highlights the potential of BiOCl-MnO₂/PVA hydrogel composites for sustainable, reusable, and efficient water treatment applications.
{"title":"Modulation of MnO2-BiOCl photocatalyst immobilized in polyvinyl alcohol hydrogel for reusable photodegradation of Rhodamine B and Ibuprofen under visible light","authors":"Sin Ling Chiam , C.P. Leo , Swee-Yong Pung , Wei Lun Ang","doi":"10.1016/j.solidstatesciences.2025.107831","DOIUrl":"10.1016/j.solidstatesciences.2025.107831","url":null,"abstract":"<div><div>The presence of pharmaceutical drugs and organic dyes in water poses significant concerns for both human health and the environment. While photocatalysts offer an effective means of pollutant degradation without generating secondary waste, they are commonly limited by charge recombination and small particle size for large-scale practical use. In this study, BiOCl was chemically deposited on MnO<sub>2</sub> and immobilization in the polyvinyl alcohol hydrogel thin films for the photodegradation of Rhodamine B and Ibuprofen under visible light. The plate-like BiOCl successfully grown between nanoflowers of MnO₂, as proven by scanning and transmission electron microscopy images. Energy dispersive X-ray analysis and Fourier-transform infrared spectroscopy results affirmed the chemical characteristics of BiOCl and MnO₂, while X-ray diffraction patterns confirmed the crystallinity of BiOCl and MnO₂. Optimizing the BiOCl loading, 2:1 in ratio with MnO<sub>2</sub> yielded a PVA thin film with high photocatalytic activity. 99 % of Rhodamine and 97 % of Ibuprofen were degraded in 60 min and 90 min respectively. Even after five recycles, the catalyst maintained over 80 % efficiency for RhB and 70 % for Ibuprofen. The degradation was primarily driven by •O<sub>2</sub><sup>−</sup> and e<sup>−</sup> generated by the MnO<sub>2</sub> and BiOCl composite. This study highlights the potential of BiOCl-MnO₂/PVA hydrogel composites for sustainable, reusable, and efficient water treatment applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107831"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098785","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}
Pub Date : 2025-02-01DOI: 10.1016/j.solidstatesciences.2024.107787
Yurii A. Aleshchenko , Andrey V. Muratov , Elena S. Zhukova , Lenar S. Kadyrov , Boris P. Gorshunov , Giovanni A. Ummarino , Ilya A. Shipulin
<div><div>The broad-band optical spectroscopy was used to study the optical and the hidden transport properties of the Ba(Fe<span><math><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></math></span>Ni<span><math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math></span>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> superconducting films with different Ni contents. The normal state data were analyzed using a Drude–Lorentz model with two Drude components: narrow and broad ones. In the superconducting state, two gaps with <span><math><mrow><mn>2</mn><msubsup><mrow><mi>Δ</mi></mrow><mrow><mn>0</mn></mrow><mrow><mrow><mo>(</mo><mn>1</mn><mo>)</mo></mrow></mrow></msubsup><mo>/</mo><msub><mrow><mi>k</mi></mrow><mrow><mi>B</mi></mrow></msub><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>=</mo><mn>1</mn><mo>.</mo><mn>57</mn></mrow></math></span> and <span><math><mrow><mn>2</mn><msubsup><mrow><mi>Δ</mi></mrow><mrow><mn>0</mn></mrow><mrow><mrow><mo>(</mo><mn>2</mn><mo>)</mo></mrow></mrow></msubsup><mo>/</mo><msub><mrow><mi>k</mi></mrow><mrow><mi>B</mi></mrow></msub><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>=</mo><mn>3</mn><mo>.</mo><mn>48</mn></mrow></math></span> are formed for the Ba(Fe<sub>0.965</sub>Ni<sub>0.035</sub>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> films, while for the Ba(Fe<sub>0.95</sub>Ni<sub>0.05</sub>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> films these characteristic ratios are 1.88–2.08 and 3.66–4.13. Both gaps are formed from the narrow Drude component, whereas the broad Drude component remains ungapped. The calculated from infrared data total dc resistivity of the films with Ni contents <span><math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>05</mn></mrow></math></span> and <span><math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>08</mn></mrow></math></span> as well as the low-temperature scattering rate for the narrow Drude component show a hidden Fermi-liquid behavior. On the contrary, the films with <span><math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>035</mn></mrow></math></span> manifest a hidden non-Fermi-liquid behavior. The Allen theory generalized to a multiband systems was applied to the analysis of the temperature dependences of a resistivity of the Ba(Fe<span><math><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></math></span>Ni<span><math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math></span>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> films. The change of total electron-boson co
{"title":"Optical and transport properties of Ba(Fe1−xNix)2As2 films","authors":"Yurii A. Aleshchenko , Andrey V. Muratov , Elena S. Zhukova , Lenar S. Kadyrov , Boris P. Gorshunov , Giovanni A. Ummarino , Ilya A. Shipulin","doi":"10.1016/j.solidstatesciences.2024.107787","DOIUrl":"10.1016/j.solidstatesciences.2024.107787","url":null,"abstract":"<div><div>The broad-band optical spectroscopy was used to study the optical and the hidden transport properties of the Ba(Fe<span><math><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></math></span>Ni<span><math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math></span>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> superconducting films with different Ni contents. The normal state data were analyzed using a Drude–Lorentz model with two Drude components: narrow and broad ones. In the superconducting state, two gaps with <span><math><mrow><mn>2</mn><msubsup><mrow><mi>Δ</mi></mrow><mrow><mn>0</mn></mrow><mrow><mrow><mo>(</mo><mn>1</mn><mo>)</mo></mrow></mrow></msubsup><mo>/</mo><msub><mrow><mi>k</mi></mrow><mrow><mi>B</mi></mrow></msub><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>=</mo><mn>1</mn><mo>.</mo><mn>57</mn></mrow></math></span> and <span><math><mrow><mn>2</mn><msubsup><mrow><mi>Δ</mi></mrow><mrow><mn>0</mn></mrow><mrow><mrow><mo>(</mo><mn>2</mn><mo>)</mo></mrow></mrow></msubsup><mo>/</mo><msub><mrow><mi>k</mi></mrow><mrow><mi>B</mi></mrow></msub><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>=</mo><mn>3</mn><mo>.</mo><mn>48</mn></mrow></math></span> are formed for the Ba(Fe<sub>0.965</sub>Ni<sub>0.035</sub>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> films, while for the Ba(Fe<sub>0.95</sub>Ni<sub>0.05</sub>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> films these characteristic ratios are 1.88–2.08 and 3.66–4.13. Both gaps are formed from the narrow Drude component, whereas the broad Drude component remains ungapped. The calculated from infrared data total dc resistivity of the films with Ni contents <span><math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>05</mn></mrow></math></span> and <span><math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>08</mn></mrow></math></span> as well as the low-temperature scattering rate for the narrow Drude component show a hidden Fermi-liquid behavior. On the contrary, the films with <span><math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>035</mn></mrow></math></span> manifest a hidden non-Fermi-liquid behavior. The Allen theory generalized to a multiband systems was applied to the analysis of the temperature dependences of a resistivity of the Ba(Fe<span><math><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></math></span>Ni<span><math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math></span>)<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>As<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> films. The change of total electron-boson co","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107787"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149428","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}