Solid State Sciences最新文献

{"title":"Synthesis and characterization of graphitic carbon Nitride/Cd2SnO4 nanostructures for high-performance flexible supercapacitors","authors":"Waris ,&nbsp;Sayfa Bano ,&nbsp;Moha Suhail Chaudhary ,&nbsp;Saima Sultana ,&nbsp;Mahendra Yadav ,&nbsp;Mohammad Zain Khan","doi":"10.1016/j.solidstatesciences.2024.107817","DOIUrl":"10.1016/j.solidstatesciences.2024.107817","url":null,"abstract":"<div><div>The development of electrode materials based on heterojunctions shows a promising approach for enhancing electrochemical performance, offering the potential for future advancements in energy storage applications. This investigation, a graphitic carbon nitride (g-C₃N₄) matrix functioned as a supportive network, regulating the aggregation of cadmium stannate (Cd₂SnO₄) nanoparticles (NPs) thereby giving promising stability during electrochemical cycling. The optimized g-C₃N₄/Cd₂SnO₄ composite demonstrated excellent electrochemical performance, characterized by a high specific capacitance and improved cycling stability. X-ray diffraction (XRD) patterns of the composite revealed distinct crystalline phases of individual components, confirming the orthorhombic structure of the composite. The electrochemical charge storage performance of the synthesized electrode material has been evaluated in an aqueous acidic and gel-electrolyte (PVA/H₂SO₄) medium. The results indicate that among the prepared electrode materials, the g-C₃N₄/Cd₂SnO₄ sample exhibits the highest electrochemical capacitance of 601.20 Fg^-1 at 0.5 Ag^-1. Even after 5000 charge-discharge cycles, the electrode maintained its cycling stability with 94.69 % capacitance retention. The performance of the g-C₃N₄/Cd₂SnO₄ electrode was further evaluated in a gel polymer electrolyte by assembling a symmetric capacitor for real-world application using a two-electrode system. The use of a gel electrolyte allowed the device to achieve an energy density of 48.81 Wh kg⁻¹ and a power density of 250 W kg⁻¹ within a voltage window of 1.0 V at an operating current density of 0.5 A g⁻¹. Notably, the g-C₃N₄/Cd₂SnO₄ electrode demonstrated strong cycling stability in the gel electrolyte, maintaining performance for up to 5000 cycles. Furthermore, the symmetric device in the gel electrolyte exhibited excellent electrochemical stability across various bending angles, highlighting its potential for use as a flexible electrode in supercapacitors.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107817"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097796","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":"Fabrication of Cd-modified Zn-Pb-W-borate glass for enhanced optical, thermal, and radiation attenuation","authors":"Usman Iliyasu ,&nbsp;Mohamad Syazwan Mohd Sanusi ,&nbsp;Nor Ezzaty Ahmad ,&nbsp;M.S. Al-Buriahi ,&nbsp;Hammam Abdurabu Thabit ,&nbsp;M. Bature ,&nbsp;Ngaram Suleman Modu","doi":"10.1016/j.solidstatesciences.2024.107797","DOIUrl":"10.1016/j.solidstatesciences.2024.107797","url":null,"abstract":"<div><div>Fabrication of glass composition (60-<em>x</em>)B₂O₃+10WO₃+15ZnO+15Pb₃O₄+<em>x</em>CdCO₃, where <em>x</em> varied from 10, 20–30 mol%, have been synthesized via melt-quenching techniques. The effect of CdO was investigated on the optical, thermal, and radiation shielding properties using the Phy-X/PSD. The refractive index varied from 2.04 to 2.13 and the molar refractivity increased from 15.00 cm³/mol to 15.28 cm³/mol. The Fermi energy level decreased from 3.31 eV to 3.19 eV suggesting a p-type semiconductor behavior, with holes serving as the primary charge carriers. The Glass transition temperature (<span><math><mrow><msub><mi>T</mi><mi>g</mi></msub></mrow></math></span>), crystallization temperature (<span><math><mrow><msub><mi>T</mi><mi>c</mi></msub></mrow></math></span>), and melting temperature (<span><math><mrow><msub><mi>T</mi><mi>m</mi></msub></mrow></math></span>) improved with higher CdO levels. The photon shielding properties of the synthesized glasses were improved, as evidenced by an increase in the linear attenuation coefficient from 34.17 cm⁻¹–43.42 cm⁻¹, while the half-value thickness reduced from 0.020 cm to 0.016 cm at 0.05 MeV, upon incorporating 10 and 30 mol% of CdO. The radiation protection efficiency of all the studied glasses were approximately 100 % at energy between 0.05 and 0.1 MeV. The fast neutron removal cross-section has a maximum value of 0.130 cm⁻¹ for sample containing 20 mol% CdO outperforming some standard neutron shielding materials. The combined optical, photon, and neutron shielding properties of these glasses highlight their potential as promising candidates for applications in optoelectronics and radiation shielding.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107797"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098234","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":"Systematic study on the quality of flux-grown Al2O3 single crystals for dosimetry applications","authors":"C. Rodrigues ,&nbsp;J.G.M. Saraiva ,&nbsp;A.P. Gonçalves ,&nbsp;L. Peralta","doi":"10.1016/j.solidstatesciences.2025.107835","DOIUrl":"10.1016/j.solidstatesciences.2025.107835","url":null,"abstract":"<div><div>Understanding the intricate effects of radiation at the microscale is pivotal for advancing cancer treatment strategies. This study focuses on the development of cutting-edge Al₂O₃-based passive dosimeters that are able to achieve microscale sensitivity and improve such description. Corundum (Al₂O₃) single crystals were grown isothermally with a Li₂O–MoO₃ flux system. Herein, we report the effects of flux composition, solute concentration, holding time and temperature on crystal quality, which directly impacts the detector's performance. Higher Li₂O concentration and higher holding temperature improved crystal transparency. Lower solute concentration led to larger crystals. Holding time did not appear to have a significant impact on crystal size or quality. Using a 15 % mol Li₂O – 85 % mol MoO₃ flux system with 6 % mol of Al₂O₃ and a holding temperature of 1180 °C, highly transparent Al₂O₃ single crystals up to 5 mm in size can be grown. The grown crystals show promising features for future radiation detection applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107835"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098241","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}

{"title":"Hydrothermal synthesis and pressure-induced reversible phase transition of holmium germanate NaHoGeO4","authors":"Tingting Yan,&nbsp;Dinghan Jin,&nbsp;Dongyang Xi,&nbsp;Lei Sun,&nbsp;Linan Liu,&nbsp;Han Li","doi":"10.1016/j.solidstatesciences.2025.107828","DOIUrl":"10.1016/j.solidstatesciences.2025.107828","url":null,"abstract":"<div><div>NaHoGeO₄ crystals were successfully synthesized under hydrothermal conditions. The crystals had petal-like morphologies with dimensions of approximately 300 μm. The crystals displayed excellent luminescent properties, appearing yellow under natural light and pale red under UV light irradiation. Compared with solid-state synthesis method, these experiments require a shorter time and can be operated at a lower temperature. To assess the structural integrity of NaHoGeO₄ and its luminescent characteristics under varying pressure conditions, a diamond anvil cell (DAC) was utilized to perform high-pressure Raman and photoluminescence (PL) spectroscopic studies. The results of high-pressure PL spectroscopy demonstrated that NaHoGeO₄ probably underwent a structural transformation into a new phase within 5.7–9.0 GPa. High-pressure Raman analysis indicated that notable alterations occurred throughout the assessed pressure spectrum, indicating that a phase transition took place. When the pressure was increased to approximately 15.0 GPa, the high-pressure phase of NaHoGeO₄ (NaHoGeO₄-HP) remained stable. Once the pressure was reduced, the spectra reverted to their initial forms, suggesting that the phase transition could be reversed. This study provides a new approach for the study of the luminescent properties of rare-earth germanate compounds, with significant potential for practical applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107828"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098781","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":"Preparation and photocatalytic degradation properties of Z-scheme Si-TiO2/g-C3N4 heterojunction modified with F-CDs","authors":"Shichang Yuan ,&nbsp;Guangchao Yin ,&nbsp;Tong Zhao ,&nbsp;Jing Zhang ,&nbsp;Shuli Wei ,&nbsp;Huanian Zhang ,&nbsp;Zhaodong Liu ,&nbsp;Junkai Zhang ,&nbsp;Qing Lu ,&nbsp;Meiling Sun","doi":"10.1016/j.solidstatesciences.2025.107832","DOIUrl":"10.1016/j.solidstatesciences.2025.107832","url":null,"abstract":"<div><div>For environmental remediation, the development of innovative photocatalysts for efficient degradation of pollutants is essential. This paper construct three-dimensional (3D) Si-doped TiO₂ (Si-TiO₂) hollow material, and explores its photocatalytic reaction efficiency after composite g-C₃N₄ under F-doped carbon dots (F-CDs) modification. Silica opal template can be used to prepare Si-TiO₂ with hollow spherical structure and layered macroscopic mesoporous structure. Due to the confinement effect of template and the formation of Si-O-Ti bonds, anatase phase Si-TiO₂ hollow spheres do not undergo structural phase transition during high-temperature calcination. The incorporation of g-C₃N₄ can increase the light absorption range, and facilitate the formation of heterojunction with Si-TiO₂, thereby improving the charge carrier generation and separation efficiency. Since F-CDs contains carbon core and abundant surface functional groups, it is favorable to increase the number of active sites and adsorb more g-C₃N₄, thus increasing the heterojunction area. It can also be used as the electronic medium to accelerate carrier separation and transport rate between g-C₃N₄/Si-TiO₂ heterojunctions. Finally, thanks to the large specific surface area, abundance of active sites, excellent light absorption performance and effective charge separation and transport performance, the g-C₃N₄/F-CDs/Si-TiO₂ photocatalyst can decompose 3 mg L⁻¹ of Rh B under visible light, and the degradation rate can reach 74 % in 50 min under 10 mg conditions. The insights gained from this study could provide useful information for the development of effective photocatalysts.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107832"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098782","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":"Incorporation of iodine on Ag3PO4 under Nigella Sativa seed extract for enhanced photocatalytic activity","authors":"Uyi Sulaeman ,&nbsp;Dea Ajeng Rahma Winarto Putri ,&nbsp;Rini Larasati ,&nbsp;Eva Vaulina Yulistia Delsy ,&nbsp;Isnaeni Isnaeni ,&nbsp;Shu Yin","doi":"10.1016/j.solidstatesciences.2025.107836","DOIUrl":"10.1016/j.solidstatesciences.2025.107836","url":null,"abstract":"<div><div>The iodine dopant in photocatalysts has new challenges in improving photocatalytic activity. Here, iodine incorporation in Ag₃PO₄ under potassium iodide (KI) and Nigella sativa seed extract has been successfully prepared using the coprecipitation method. The preparation utilized the starting material of Na₂HPO₄.12H₂O, AgNO₃, Nigella sativa seed extract, and KI with variation concentration as sources of iodine dopant. The results revealed that KI addition causes significant changes in the UV-DRS absorption, PL spectra, FTIR, and Raman spectra. The lower concentration of KI treatment resulted in a more effective iodine dopant in the Ag₃PO₄ surface. This treatment lowers the d-space of the Ag₃PO₄ crystal, increases the bandgap energy, and decreases the P/Ag atomic ratio, resulting in I-doped Ag₃PO₄ with phosphate deficiency. The photocatalytic activity showed a significant effect on the degradation of Rhodamine B (RhB), Methylene Blue (MB), and Methyl Orange (MO). This excellent photocatalytic activity is mainly due to a higher active species of holes and superoxide anion radicals.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107836"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098786","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":"Investigating samarium doping effects on the structural, morphological, optical and dielectric properties of zinc cobalt ferrites: A detailed insight","authors":"Ayesha Aslam ,&nbsp;Muhammad Tayyab Iqbal ,&nbsp;Saqib Shabbir ,&nbsp;Shahzab Raza ,&nbsp;Majed Yousef Awaji ,&nbsp;Hafeez Anwar ,&nbsp;Zia Ul Haq","doi":"10.1016/j.solidstatesciences.2025.107824","DOIUrl":"10.1016/j.solidstatesciences.2025.107824","url":null,"abstract":"<div><div>In this study, Samarium-substituted zinc cobalt ferrites [Zn_0.5Co_0.5Sm_xFe_2-xO₄, (0.0 ≤ x ≤ 0.2; step 0.02)] were prepared using the simple co-precipitation technique. XRD analysis with Rietveld refinement confirmed a single-phase spinel cubic structure, with lattice constants ranging from 8.39 to 8.43 Å and 8.385 to 8.420 Å, respectively. Crystallite sizes, determined via Scherrer's and Williamson-Hall methods, ranged between 29.16 - 34.09 nm and 35.2–52.6 nm, respectively. SEM results revealed spherical nanoparticles ranging from 0.28 to 0.38 μm, determined using ImageJ software. FTIR spectra showed metal oxide absorption peaks at 430 cm⁻¹ and 529 cm⁻¹, confirming the presence of a cubic spinel phase. UV–visible analysis indicated a decreasing energy band gap from 2.91 to 2.76 eV with increasing rare earth (RE) Sm³⁺ substitution. The dielectric constant has a maximum value at higher frequencies ranging from 0.5 to 3.2 GHz, while AC conductivity reached a maximum of 0.025 (Ω cm)⁻¹. The electric modulus increased steadily with frequency. Such improved properties make these materials potential candidates for high frequency devices, actuators and energy storage systems applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107824"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143149345","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":"Enhanced design optimization of micro-thermoelectric cooler in optical module","authors":"Yutian Liu,&nbsp;Dongwang Yang,&nbsp;Kechen Tang,&nbsp;Jianan Lyu,&nbsp;Zinan Zhang,&nbsp;Chenyang Li,&nbsp;Yu Zheng,&nbsp;YongZhong Jia,&nbsp;Junhao Li,&nbsp;Yonggao Yan","doi":"10.1016/j.solidstatesciences.2025.107829","DOIUrl":"10.1016/j.solidstatesciences.2025.107829","url":null,"abstract":"<div><div>Optical modules serve as crucial components for converting signals between optical and electrical forms in high-speed communication and sensing systems, with their performance dependent on precise temperature control. Thermoelectric devices (TED) provide a solution utilizing the Peltier effect and their efficiency is constrained by the design of their geometric structure. However, while traditional research methods have shown some effectiveness in optimizing the size of single-stage thermoelectric coolers, they may face the trap of local optimal solutions when dealing with complex multi-variable and multi-objective optimization problems, and the search efficiency for global optimal solutions is relatively low. The primary focus of this study is the utilization of thermoelectric devices in 5G/6G optical modules, employing finite element numerical simulation methods to deeply analyze the impact of different geometric parameters (leg height <em>l</em>, leg width <em>w</em>, number of leg pairs <em>p</em>_d) and environmental parameters (ambient temperature <em>T</em>_m, cooling capacity <em>Q</em>_c) on the performance of the devices. To enhance the efficiency of choosing optimal device parameters and meet various performance criteria, a proposed multi-objective optimization strategy is employed. Under the condition of <em>T</em>_m = 90 °C and <em>Q</em>_c = 1 W, the optimal device geometry is as follows<em>: p</em>_d = 224 legs/cm², <em>w</em> = 0.5 mm, <em>l</em> = 0.8 mm, and <em>P</em>_min = 1.5 W<em>.</em> Under the condition of <em>T</em>_m = 90 °C and <em>Q</em>_c = 1.5 W, the optimal device geometry is as follows: <em>p</em>_d = 224 legs/cm², <em>w</em> = 0.5 mm, <em>l</em> = 0.5 mm<em>,</em> and <em>P</em>_min = 2.42 W.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107829"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098777","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":"Influence of Pr³⁺ substitution on the structural, optical, magnetic, and dielectric properties of Sr2FeTiO6−δ double perovskites","authors":"J. Stella Punitha ,&nbsp;Ramesh Kumar Raji ,&nbsp;Tholkappiyan Ramachandran ,&nbsp;K. Saravana Kumar ,&nbsp;Muthu Dhilip ,&nbsp;Fathalla Hamed ,&nbsp;A. Nataraj","doi":"10.1016/j.solidstatesciences.2025.107825","DOIUrl":"10.1016/j.solidstatesciences.2025.107825","url":null,"abstract":"<div><div>Double perovskite compounds Sr_2-xPr_xFeTiO_6−δ (x = 0.2, 0.4, 0.6, 0.8) were synthesized using a high-temperature solid-state reaction method. X-ray diffraction (XRD) analysis confirmed that all samples exhibit a cubic structure with a space group of <em>Pm-3m</em>. Rietveld refinement using the pseudo-Voigt function confirmed the formation of a single-phase compound with good reliability factors. Scanning electron microscopy (SEM) showed that the particles were spherical with minimal clumping and were uniform in size and shape. Energy dispersive X-ray (EDAX) analysis confirmed the presence of Sr, Pr, Ti, Fe, and O elements. The oxidation states of the constituent elements were validated by X-ray photoelectron spectroscopy (XPS), confirming the stability of the crystal structure. Diffuse reflectance spectroscopy indicated semiconductor-like behavior, with the energy band gap decreasing from 3.24 eV to 2.71 eV as Pr content increased. Dielectric studies showed a frequency and temperature-dependent dielectric constant increases with increasing Pr substitution from x = 0.2 to 0.8. Magnetic measurements revealed a transition from antiferromagnetic to ferromagnetic characteristic as the Pr concentration increased. These findings suggest that the synthesized Sr_2-xPr_xFeTiO_6−δ compounds are promising candidates for use in advanced electronic technologies, magneto-optical storage, optoelectronic devices, and sensor applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107825"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098780","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":"Coral like g-C3N4/Br-Bi2O2CO3 type-II heterojunction with efficient photocatalytic performance and mechanism for degradation of tetracycline","authors":"Bowen Lu ,&nbsp;Ling Wang ,&nbsp;Xiaoya Zhu ,&nbsp;Qinyi Gu ,&nbsp;Chujun Feng ,&nbsp;Jian Rong ,&nbsp;Zhongyu Li ,&nbsp;Song Xu","doi":"10.1016/j.solidstatesciences.2024.107765","DOIUrl":"10.1016/j.solidstatesciences.2024.107765","url":null,"abstract":"<div><div>Photocatalytic technology is an effective strategy to address the proliferation of antibiotics. In this study, a coral-like g-C₃N₄/Br-Bi₂O₂CO₃ (C-CN/Br-BOC) photocatalyst with a type-Ⅱ heterojunction was constructed for efficient degradation of tetracycline (TC). The as-prepared C-CN/Br-BOC composites showed excellent photocatalytic performance for degradation of tetracycline. The degradation efficiency of 0.7C-CN/Br-BOC photocatalyst reached 94.2 % within 120 min, and the catalytic performance and crystal structure remained stable after 5 cycles. The enhancement of photocatalytic activity can be attributed to the formation of type-II heterojunction and the successful doping of Br elements, which significantly improves the separation ability and electron mobility of the electron-hole pairs produced by photons. In addition, the photocatalytic mechanism of C-CN/Br-BOC heterojunction and degradation pathways of TC are also proposed.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107765"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093192","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}