{"title":"Sol–gel-derived ErFeO3/Fe3O4/graphene oxide hybrid nanocomposites: green auto-combustion synthesis, structural evolution, and visible-light functional performance","authors":"Haneen Majed Saheb, Kamran Heydaryan, Hossein Khojasteh, Peyman Aspoukeh, Mohsen Mohammadalizadeh, Masoomeh Sadat Fini, Dilshad Shaikhah","doi":"10.1007/s10971-026-07167-3","DOIUrl":"10.1007/s10971-026-07167-3","url":null,"abstract":"<div><p>The development of multifunctional materials through sol-gel processing offers a powerful route for controlling composition, interfacial chemistry, and charge transport at the nanoscale. In this study, ErFeO<sub>3</sub>/Fe<sub>3</sub>O<sub>4</sub>/graphene oxide (GO) hybrid nanocomposites were synthesized via a green sol-gel auto-combustion method, employing kiwifruit extract as a natural chelating and reducing agent to promote homogeneous phase formation and reduced thermal budget. X-ray diffraction and spectroscopic analyses confirmed the successful crystallization of orthorhombic ErFeO<sub>3</sub> and spinel Fe<sub>3</sub>O<sub>4</sub> phases uniformly anchored on graphene oxide sheets, while electron microscopy and Brunauer-Emmett-Teller (BET) measurements revealed a hierarchically porous nanostructure with enhanced interfacial contact. Optical investigations using ultraviolet–visible (UV–Vis) spectroscopy demonstrated extended visible-light absorption and reduced bandgap energy, attributed to the synergistic coupling between ferrite components and GO. Magnetic measurements confirmed superparamagnetic behavior, enabling facile catalyst recovery. Under visible-light irradiation, the optimized hybrid nanocomposite achieved 86.6% degradation of Eriochrome Black T and 31.3% degradation of methylene blue, significantly outperforming the individual constituents. The enhanced photocatalytic activity is attributed to sol-gel-driven interfacial engineering, which promotes efficient charge separation and suppresses electron–hole recombination. These results underscore the potential of green sol-gel-derived rare-earth ferrite/graphene oxide hybrids as multifunctional materials for photocatalytic and optoelectronic applications.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07167-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hossein Alibakhshi, Hamid Esfahani, Esmaeel Sharifi, Mohammad Reza Ghaani
{"title":"Effects of fiber orientation on piezoelectric and magnetic hyperthermia activity of electrospun PVDF-CoFe2O4 nanofibrous scaffolds","authors":"Hossein Alibakhshi, Hamid Esfahani, Esmaeel Sharifi, Mohammad Reza Ghaani","doi":"10.1007/s10971-026-07142-y","DOIUrl":"10.1007/s10971-026-07142-y","url":null,"abstract":"<div><p>The widespread growth in cancer cases worldwide necessitates an effective method for treating patients. This study focused on enhancing the efficacy of polyvinylidene difluoride-CoFe<sub>2</sub>O<sub>4</sub> (PVDF-CFO) scaffolds for use in magnetic hyperthermia treatment (MHT) by enhancing fiber alignment. The Herman’s orientation factor (<i>f</i>), which represents the alignment degree of fibers, was calculated. Values of <i>f</i> = 0.4, 0.07, 0.1, and 0.2 were obtained for the prepared scaffolds at rotation speeds of 0, 1800, 3600, and 6000 rpm, respectively. The effect of the <i>f</i> factor on the microstructure, dielectric, piezoelectric, and magnetic properties of the scaffolds was evaluated. The average fiber diameter and open surface porosity of the scaffolds decreased with increasing <i>f</i> factor. With the incorporation of CFO and the enhancement of the alignment degree of fibers, the polymer β fraction was significantly increased, and a maximum of 97% β fraction was achieved. The dielectric, saturation magnetization, and piezoelectric sensitivity of the scaffolds increased with the <i>f</i> factor, with maximum values of 8.4 ± 0.5, 0.087 emg.g<sup>–1</sup>, and 8.8 ± 0.4 V.N<sup>–1</sup>, respectively. Heat generation was enhanced with increasing <i>f</i> factor. The maximum specific absorption rate (SAR) was 5.01 W.g<sup>–1</sup> and intrinsic loss power (ILP) values of 1.06 nHm<sup>2</sup>kg<sup>–1</sup> were obtained using a PVDF-CFO scaffold prepared with <i>f</i> = 0.2. The effectiveness of CFO incorporation on cancerous cell death (MCF7) was 7.6% over 48 h. The findings suggest that optimizing fiber orientation could be a key factor in improving the scaffolds' performance for thermal therapies for MHT applications.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07142-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ramlingappa S. Biradar, A. K. Swetha, Rajeev S. Joshi, V. M. Jali
{"title":"Enhanced dielectric and magnetic properties of lanthanum doped cobalt ferrite nanoparticles synthesized by sol-gel method","authors":"Ramlingappa S. Biradar, A. K. Swetha, Rajeev S. Joshi, V. M. Jali","doi":"10.1007/s10971-026-07168-2","DOIUrl":"10.1007/s10971-026-07168-2","url":null,"abstract":"<div><p>Lanthanum doped Cobalt ferrite (Co)[La<sub>x</sub>Fe<sub>2-x</sub>]O<sub>4</sub> (x = 0, 0.02, 0.04, 0.06, 0.08) nanoparticles were synthesised using sol-gel auto-combustion method. Cubic spinel structure was validated by XRD. Lattice constant and porosity values increased with increase of lanthanum doping. The particles with agglomeration morphology and porous nature were observed from the SEM analysis. The vibrational bands observed in FTIR spectroscopy, in the range 350–600 cm-1, were attributed to Co-O and Fe-O stretching vibrations which confirmed ferrite formation. Further, there was a marginal shift of the band positions towards higher wave numbers with increasing lanthanum concentration. Dielectric parameters (dielectric loss and dielectric constant) were obtained in temperature range, 30–150 °C and in the frequency range, 100Hz–5.5 MHz. Dielectric constant increased with a decrease in dielectric loss value, with increase in lanthanum doping. The relaxation time was estimated using the Havriliak-Negami model. Magnetic analysis utilizing Vibrating Sample Magnetometer (VSM) at room temperature revealed that with the increase in Lanthanum concentration, the coercivity and remanence ratio values rise from 958–1395 Oe and 0.43–0.51, respectively. Overall, the present study suggests that the samples with their enhanced dielectric and magnetic properties are suitable for high frequency and magnetic recording devices.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07168-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exploring the enhanced photocatalytic performance of rare earth elements doped biphasic TiO2 nanoparticles","authors":"M. S. Monisha, R. Sreeja","doi":"10.1007/s10971-026-07193-1","DOIUrl":"10.1007/s10971-026-07193-1","url":null,"abstract":"<div><p>In this study, the impact of doping yttrium (Y), samarium (Sm), and terbium (Tb) at 0.5 mol% on the structural and photocatalytic properties of biphasic (anatase-brookite) TiO<sub>2</sub> nanoparticles was investigated. The materials were synthesized via the sol-gel method and characterized using X-ray diffraction (XRD), ultraviolet-visible (UV-Vis) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, photoluminescence (PL) spectroscopy, high-resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray analysis (EDX) and X-ray photoelectrons Spectroscopy (XPS). Photocatalytic activity was evaluated through methylene blue (MB) degradation under UV, sunlight, and dark conditions. Appropriate doping was found to enhance the light absorption, shifting it into the visible region by creating impurity energy levels within the TiO<sub>2</sub> bandgap. The improved photocatalytic performance is attributed to increased dye adsorption, a red shift in the absorption edge, and accelerated interfacial electron transfer. Among the doped samples, Sm-modified TiO<sub>2</sub> achieved the highest rate constant (0.0152 min<sup>−1</sup>) and 96% MB degradation under sunlight. Further investigations on the optimized Sm-based catalyst including kinetics, stability, scavenger effect, degradation mechanism and reusability were also done. Electrochemical studies, including cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS), demonstrated that Sm-doped TiO<sub>2</sub> nanoparticles possess lower charge transfer resistance compared to pristine TiO<sub>2</sub> and Y and Tb doped TiO<sub>2</sub> nanoparticles. Also, these Sm doped TiO<sub>2</sub> nanoparticles showed higher current responses and excellent electrochemical stability, highlighting their promise as efficient materials for photocatalytic and environmental remediation applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07193-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Graphene oxide/ zeolitic imidazolate framework-67–transition metal composite with exposed active sites for high-performance supercapacitors","authors":"Elham Mazaheri, Ahmad Gholizadeh","doi":"10.1007/s10971-026-07187-z","DOIUrl":"10.1007/s10971-026-07187-z","url":null,"abstract":"<div><p>A phase-controlled strategy has been developed to engineer two-dimensional graphene oxide (GO) integrated with a three-dimensional zeolitic imidazolate framework-67 (ZIF-67)/CoCuFe for use as a high-performance anode material in supercapacitors. By employing ZIF-67 as a sacrificial template and introducing transition metals (Co, Cu, and Fe), we successfully fabricated GO/ZIF-67/CoCuFe nanostructures confined between GO layers. Careful control of the calcination steps allowed us to tune the phase composition: while a single-step treatment produced mixed-metal phases, a two-step process enabled the formation of phase-pure CoCuFe embedded within the GO/MOF matrix. This structural confinement, resulting from limited atomic diffusion within the rhombic dodecahedral cavities of ZIF-67 wrapped in GO, proved crucial for achieving optimized electrochemical performance. The resulting composite electrodes exhibited remarkable capacitance, long-term cycling stability, and high Columbic efficiency. Furthermore, we assembled an all-solid-state asymmetric supercapacitor device using our GO/ZIF-67/CoCuFe as the positive electrode and hydrothermally derived GO as the negative electrode, which delivered outstanding energy and power densities alongside stable cycling behavior. These findings underscore the effectiveness of our synthetic approach for designing practical and scalable supercapacitor systems.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07187-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ahcene Keziz, Menad Heraiz, Linda Aissani, Karam S. El-Nasser, Ali Ismael, Taha Abdel Mohaymen Taha
{"title":"Sintering temperature driven structural and dielectric evolution of forsterite ceramics","authors":"Ahcene Keziz, Menad Heraiz, Linda Aissani, Karam S. El-Nasser, Ali Ismael, Taha Abdel Mohaymen Taha","doi":"10.1007/s10971-026-07159-3","DOIUrl":"10.1007/s10971-026-07159-3","url":null,"abstract":"<p>This work reports the effect of sintering temperature (1400–1500 °C) on the structural, microstructural, and dielectric properties of forsterite (Mg<sub>2</sub>SiO<sub>4</sub>) ceramics synthesized via a sol-gel method. X-ray diffraction confirmed the formation of phase-pure orthorhombic forsterite 1500 °C, while samples sintered at 1400 °C contained 2.3 wt% MgO. Microstructural analysis revealed a density increase from 78%–88% and a reduction in open porosity from 17% to 9% with increasing sintering temperature. Impedance spectroscopy analysis identified hopping conduction as the dominant mechanism, with DC activation energy decreasing from ~1.12 eV to ~0.96 eV as the sintering temperature increased from 1400 - 1500 °C. The ceramics exhibited a low-frequency dielectric constant (ε<sub>r</sub>) that increased with temperature. The results demonstrated that a sintering temperature of 1500 °C is optimal for achieving high density (2.88 g/cm³), reduced electrical activation energy, and superior microstructural properties, crucial for advanced electronic applications.</p>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07159-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zein K. Heiba, Noura M. Farag, Asmaa M. Abozied, Hassan Elshimy, Mohamed Bakr Mohamed, Essam E. Ali, Ali Badawi
{"title":"A multifunctional nanospinel: structural, optical and magnetic evolution of Zn1-xNixAl2O4 system","authors":"Zein K. Heiba, Noura M. Farag, Asmaa M. Abozied, Hassan Elshimy, Mohamed Bakr Mohamed, Essam E. Ali, Ali Badawi","doi":"10.1007/s10971-026-07182-4","DOIUrl":"10.1007/s10971-026-07182-4","url":null,"abstract":"<div><p>Zn<sub>1−x</sub>Ni<sub>x</sub>Al<sub>2</sub>O<sub>4</sub> (x = 0.0, 0.25, and 0.5) was synthesized via a solid-state reaction method. Structural parameters were refined using the Rietveld method, and the obtained cation distributions were confirmed by FTIR and Raman spectroscopy. Transmission electron microscopy (TEM) revealed homogeneous particle morphology consisting mainly of spheroidal shapes with occasional rectangular formations. Field emission scanning electron microscopy (FESEM) with energy-dispersive X-ray spectroscopy (EDS) showed that the elemental compositions deviated only slightly from the nominal values. The optical band gap of pristine ZnAl<sub>2</sub>O<sub>4</sub> was determined to be 3.24 eV, which decreased to 1.37 eV and 1.34 eV upon Ni doping at x = 0.25 and x = 0.50, respectively. The refractive index (n) of ZnAl<sub>2</sub>O<sub>4</sub> increased with Ni incorporation, showing a marginal rise with higher Ni content. The dielectric constant, optical conductivity, and nonlinear optical parameters were enhanced with increasing Ni doping. The effect of Ni doping on the photoluminescence properties of ZnAl<sub>2</sub>O<sub>4</sub> was also investigated. The pristine ZnAl<sub>2</sub>O<sub>4</sub> exhibited diamagnetic behavior, whereas the Ni-doped samples showed paramagnetic characteristics.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07182-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148010063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. K. Alghamdi, N. T. El-Shamy, M. H. Alhossainy, M. J. Tommalieh, A. Al Ojeery, Rasha Algethami, Tahani M. Alresheedi, M. O. Farea
{"title":"Hybrid MoO₃/ZnO-doped PVOH/PVP polymer nanocomposites for advanced optoelectronic applications","authors":"S. K. Alghamdi, N. T. El-Shamy, M. H. Alhossainy, M. J. Tommalieh, A. Al Ojeery, Rasha Algethami, Tahani M. Alresheedi, M. O. Farea","doi":"10.1007/s10971-026-07190-4","DOIUrl":"10.1007/s10971-026-07190-4","url":null,"abstract":"<div><p>Hybrid nanocomposite films of poly(vinyl alcohol)/poly(vinyl pyrrolidone) (PVOH/PVP) were successfully prepared via solution casting by incorporating 0.5 wt.% MoO₃ and varying ZnO concentrations (1.5–9 wt.%). X-ray diffraction revealed a reduction in crystallinity and an increase in the amorphous phase with higher filler content, favoring charge transport. FTIR confirmed strong hydrogen bonding and coordination interactions between the polymer matrix and MoO₃/ZnO nanoparticles. UV–visible analysis showed enhanced absorption and a red-shifted edge, with the direct optical band gap decreasing from 5.16 eV (pristine) to 3.27 eV (9 wt.% ZnO), while the Urbach energy increased, indicating structural disorder and localized states. AC conductivity and dielectric measurements demonstrated significant improvement with filler content, dominated by hopping conduction and Maxwell–Wagner–Sillars polarization, with Cole–Cole plots indicating non-Debye relaxation behavior. Thermal analysis revealed increased degradation temperatures and residual mass, indicating enhanced thermal stability due to strong polymer–filler interactions. Mechanical testing showed improved tensile strength and elongation at break, reflecting enhanced load-bearing capacity and flexibility. Overall, the nanocomposite containing 0.5 wt.% MoO₃ and 9 wt.% ZnO exhibited the best optical, electrical, and dielectric performance, making these materials promising for flexible optoelectronic and energy storage applications.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07190-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cumali Celik, Aseel A. Kadhem, Muhammad Muntazir Mehdi, Dharmesh Sur, Suhas Ballal, Bilakshan Purohit, Subhashree Ray, Naveen Chandra Talniya, Devendra Pratap Rao, Ahmad Mohammad Salamatullah, Muhammad Yasar
{"title":"Enhanced photodegradation of ciprofloxacin by Cu-doped spinel ferrite nanoparticles: synthesis, characterization and mechanistic insights","authors":"Cumali Celik, Aseel A. Kadhem, Muhammad Muntazir Mehdi, Dharmesh Sur, Suhas Ballal, Bilakshan Purohit, Subhashree Ray, Naveen Chandra Talniya, Devendra Pratap Rao, Ahmad Mohammad Salamatullah, Muhammad Yasar","doi":"10.1007/s10971-026-07129-9","DOIUrl":"10.1007/s10971-026-07129-9","url":null,"abstract":"<div><p>This study introduces Cu<sub>x</sub>Sr<sub>1-x</sub>Al<sub>0.4</sub>Fe<sub>1.6</sub>O<sub>4</sub> (<i>X</i> = 0, 0.4) as a novel photocatalyst synthesized via the sol-gel method for ciprofloxacin degradation in water systems. This composition, which combines strontium, aluminum, and copper in a spinel ferrite structure, represents a significant advancement in antibiotic remediation technology. Key findings reveal that copper doping decreased the bandgap from 2.8 to 2.6 eV, increased surface area by 38% (from 31 to 43 m<sup>2</sup>/g), and dramatically enhanced photocatalytic performance. The Cu-doped catalyst achieved 100% ciprofloxacin degradation within 75 min under optimized conditions of pH 7, 30 °C, 10 mg catalyst dosage, and 10 ppm ciprofloxacin concentration, with a second-order rate constant of 0.00756 L mg<sup>−1</sup> min<sup>−1</sup> under visible light irradiation (100 mW/cm<sup>2</sup>)., compared to only 54% for the undoped material. Hydroxyl radicals were identified as the primary reactive species, with degradation following second-order kinetics. The catalyst maintained over 94% efficiency after recycling five times, demonstrating its excellent stability. With superior quantum yield (3.21 × 10⁻⁶ molecules/photon) and minimal catalyst dosage requirements, this material offers a sustainable solution for the remediation of pharmaceutical contaminants. The findings have significant potential for implementation in pharmaceutical wastewater treatment plants and water purification systems.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07129-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148010061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Cinto-Alarcon, J. A. Moreno-Rodríguez, A. Aragón-García, L. A. Moreno-Rodríguez, E. A. Valdez-Torija, E. Rubio-Rosas
{"title":"Silica-based nanomaterials for the control of Trioza anceps: Laboratory bioassays and preliminary field observations","authors":"G. Cinto-Alarcon, J. A. Moreno-Rodríguez, A. Aragón-García, L. A. Moreno-Rodríguez, E. A. Valdez-Torija, E. Rubio-Rosas","doi":"10.1007/s10971-026-07179-z","DOIUrl":"10.1007/s10971-026-07179-z","url":null,"abstract":"<div><p>It is known that four <i>Trioza</i> species attack avocado foliage, with <i>Trioza anceps</i> Tuthill (commonly called the avocado psyllid) being a widespread pest in Mexico and Central America. Both nymphs and adults feed on young leaf sap, but the nymphs induce avocado leaf galls by injecting a toxin during feeding, triggering tissue hyperplasia and hypertrophy. This leads to severe leaf deformations, stunted tree growth, and overall decline in plant health [1]. The aim of the present research was to evaluate the efficacy of nanomaterials synthesized via the sol-gel method for the control of <i>T. anceps</i>. The treatments included silicon oxide, silicon oxide with pine bark extract, silicon oxide with pine resin, and silicon oxide with both pine bark extract and pine resin. The nanomaterials were characterized prior to laboratory testing. Among them, the SiO<sub>2</sub>-pine resin formulation proved to be the most effective, achieving 100% mortality of <i>T. anceps</i> nymphs by day 7 and belonging to the highest statistical efficacy group (group a) according to Tukey’s HSD test (<i>p</i> < 0.05). in [2]. Material characterization confirmed physicochemical properties enhancing phytoprotective effects, positioning silica-based nanomaterials as sustainable alternatives in modern agriculture [3, 4].</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"118 3","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10971-026-07179-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148010049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}