Vera I. Isaeva, Andrei L. Tarasov, Olga P. Tkachenko, Sergei V. Savilov, Nikolai A. Davshan, Vladimir V. Chernyshev, Leonid M. Kustov
{"title":"Novel Rh catalytic systems based on microporous metal-organic framework MIL-53(Al) for “green” ethylene hydroformylation","authors":"Vera I. Isaeva, Andrei L. Tarasov, Olga P. Tkachenko, Sergei V. Savilov, Nikolai A. Davshan, Vladimir V. Chernyshev, Leonid M. Kustov","doi":"10.1007/s10934-024-01695-5","DOIUrl":"10.1007/s10934-024-01695-5","url":null,"abstract":"<div><p>Novel hybrid nanomaterials were synthesized using microporous metal-organic framework MIL-53(Al) as a support for rhodium nanoparticles (Rh NPs). In order to elucidate the factors that govern the dispersion and location of Rh, MIL-53(Al) samples were synthesized using two alternative strategies: conventional solvothermal procedure and microwave (MW) activation of the reaction mass. It was established that the use of different preparation conditions for the synthesis of the MIL-53(Al) carrier results in the spatial manipulation of the structural characteristics of the Rh@MIL-53(Al) nanohybrids. The structural study revealed also a pronounced confinement effect of the MIL-53(Al) porous matrix for the Rh nanoparticles. The novel Rh@MIL-53(Al) nanohybrids show high efficiency in “green” ethylene hydroformylation into propionic aldehyde (propanal) using syngas produced by CO<sub>2</sub> hydrogenation. Carbon dioxide hydrogenation (atmospheric pressure, 500<sup>o</sup>C) was performed over cobalt nanoparticles deposited on the MIL-53(Al) nanomaterial obtained in MW fields. Exceptionally high thermal stability of the MIL-53(Al) matrix under conditions of the two-stage catalytic process was found. This work results demonstrate the new potential of the nanostructured catalysts based on the MIL-53(Al) carrier in the carbon dioxide conversion into value-added products.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"263 - 273"},"PeriodicalIF":2.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Achieving high-rate capacity pitch-based carbon as anode materials for lithium-ion battery","authors":"Wenkai Yang, Chunfeng Wang, Jing Wang, Shaowei Yao, Chunmei Wang, Ying Wang","doi":"10.1007/s10934-024-01694-6","DOIUrl":"10.1007/s10934-024-01694-6","url":null,"abstract":"<div><p>By a simple ball-milling and heat treatment method, pitch as carbon source and CaCO<sub>3</sub> or MgO as pore-former, the high-rate capability three-dimensional porous carbon materials are synthesized. The porous carbon has an abundant porous structure with a specific surface area of ~ 94.6527 m<sup>2</sup> g<sup>−1</sup>and pore volume of ~ 0.4311 ml g<sup>−1</sup>. The unique microstructure of porous carbon has more nanoscale pores, resembling an irregular “honeycomb” structure. The abundant presence of mesoporous and large pore volumes in porous carbon facilitates the diffusion of lithium ions and enhances the lithium storage capacity. The reversible charge–discharge capacity of porous carbon was 1102 mAh g<sup>−1</sup> after 120 cycles at 100 mA g<sup>−1</sup> and 800 mAh g<sup>−1</sup> after 550 cycles at 500 mA g<sup>−1</sup>. The highly porous structure of the material effectively mitigates volume expansion during charge and discharge processes. This porous carbon material exhibits a high capacity, extended cycle life, and exceptional rate capability, rendering it a promising candidate for future anode materials in lithium-ion batteries.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"251 - 261"},"PeriodicalIF":2.5,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Prashanna Suvaitha, T. Divya, S. Niveditha, K. Venkatachalam
{"title":"Uptake of ofloxacin antibiotic from aqueous solution on Co3O4/SBA-15 adsorbent by an adsorption process: Evaluation of isotherm, kinetics, and thermodynamic studies","authors":"S. Prashanna Suvaitha, T. Divya, S. Niveditha, K. Venkatachalam","doi":"10.1007/s10934-024-01690-w","DOIUrl":"10.1007/s10934-024-01690-w","url":null,"abstract":"<div><p>In this study, the Co<sub>3</sub>O<sub>4</sub>/SBA-15 adsorbent was very effective in removing ofloxacin from the aqueous solution. An impregnation method was used to prepare the adsorbent. TGA, low-angle XRD, wide-angle XRD, DRS-UV-Visible, FT-IR, FESEM with EDX, HRTEM, BET, Raman, contact angle, and XPS analysis were used to characterize the Co<sub>3</sub>O<sub>4</sub>/SBA-15 (2 wt%, 4 wt%, and 6 wt%) and SBA-15, respectively. At a pH of around 5, the adsorbent dosage of Co<sub>3</sub>O<sub>4</sub>/SBA-15 (4 wt%) (20 mg), the contact time (70 min), the concentration of the ofloxacin solution (10 mg/L), and the temperature (room temperature) showed outstanding results in removing ofloxacin from aqueous solution. With a high value of the regression coefficient (r<sup>2</sup> = 0.9999), the Freundlich isotherm model fits the best experimental data, suggesting a multi-layer or cooperative adsorption process. Ofloxacin’s maximum adsorption capacity is 149.25 mg/g, and its kinetics may be described by a pseudo-second-order equation with a rate constant of k<sub>2</sub> = 0.0006 g mg<sup>−1</sup> min<sup>−1</sup>. According to the results of the thermodynamic analysis, the adsorption process occurred spontaneously and was exothermic in nature. In the reusability testing after the fourth cycle, ofloxacin was effectively removed. Therefore, Co<sub>3</sub>O<sub>4</sub>/SBA-15 (4 wt%) can be a very good adsorbent for the removal of industrial and environmental wastewater samples.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"229 - 249"},"PeriodicalIF":2.5,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shijie Chen, Mingxiao Shi, Zhaofeng Chen, Chongying Wu, Qiong Wu, Kai Shen, Lixia Yang
{"title":"Research on thermal insulation performance and application simulation of high-temperature vacuum insulation panel","authors":"Shijie Chen, Mingxiao Shi, Zhaofeng Chen, Chongying Wu, Qiong Wu, Kai Shen, Lixia Yang","doi":"10.1007/s10934-024-01689-3","DOIUrl":"10.1007/s10934-024-01689-3","url":null,"abstract":"<div><p>Vacuum insulation panel (VIP) is characterized by its unique vacuum structure, which results in extremely low thermal conductivity. However, its application in nuclear power pipelines has been rarely mentioned. In this work, super fiber reinforced aerogel (SFRA) serves as the insulating core material, combined with an ultra-thin stainless steel gas barrier to develop a new type of super insulating material, called SFRA-VIP. It exhibits an extremely low thermal conductivity (4.3 mW/m·K) and favorable thermal stability. Furthermore, the study explored the impact of stainless steel gas barrier thickness, fiber content, and aerogel density on the thermal insulation performance of SFRA-VIP. Using COMSOL Multiphysics, the heat transfer behavior of SFRA-VIP under high temperatures in nuclear power pipelines was simulated. The findings indicate that SFRA-VIP demonstrates outstanding thermal insulation performance at high temperatures, with just a 15 mm thickness reducing 450 °C to below 50 °C, which will further expand the application scope of VIP in the field of thermal insulation, particularly in the area of nuclear power pipelines.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"217 - 227"},"PeriodicalIF":2.5,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucas R. Melo de Andrade, Wanessa S. Mota, Raquel de Melo Barbosa, Juliana C. Cardoso, Luciana N. Andrade, Matheus M. Pereira, Ricardo L. C. de Albuquerque Junior, Beatriz C. Naveros, Eliana B. Souto, Patrícia Severino
{"title":"Synthesis and characterization of a new biomaterial-based scaffold based on chitosan and cashew gum: an inquiry into structural and physical properties","authors":"Lucas R. Melo de Andrade, Wanessa S. Mota, Raquel de Melo Barbosa, Juliana C. Cardoso, Luciana N. Andrade, Matheus M. Pereira, Ricardo L. C. de Albuquerque Junior, Beatriz C. Naveros, Eliana B. Souto, Patrícia Severino","doi":"10.1007/s10934-024-01688-4","DOIUrl":"10.1007/s10934-024-01688-4","url":null,"abstract":"<div><p>Polysaccharides-based scaffolds for tissue engineering have become a promising field of study, as these biomaterials provide greater biocompatibility and offer lower production costs. In the present study, we describe the development and characterization of scaffolds composed of chitosan (CHT) and cashew gum (CG) in different concentrations, and evaluate their physical and mechanical properties. Molecular docking was used to estimate the intermolecular interactions between CHT and CG. The scaffolds were produced through the solubilization of different ratios of CHT/CG (1:1; 1:0.5 and 1:0.25), and subsequently frozen and lyophilized. The developed scaffolds kept the thermal stability as documented by thermogravimetry (TGA/DTG) and differential scanning calorimetry (DSC) analyses. Fourier transform infrared spectroscopy (FTIR) analysis also showed that functional groups of both CHT and CG were kept in the developed scaffold, while X-ray diffraction (XRD) analysis depicted the typical peaks of semi-crystalline materials of chitosan and wider bands of the amorphous cashew gum. Scanning electron microscopy (SEM) and tomography analyses documented the presence of pores in the three types of scaffolds, with significant sizes that are instrumental for cell proliferation in tissue engineering. Our study demonstrates that, combining CHT and CG, a new biomaterial can be developed for potential applications in tissue engineering, for example, in bone regeneration.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"203 - 215"},"PeriodicalIF":2.5,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhan Jiang, Yuan Zhong, Xuan Meng, Li Shi, Naiwang Liu
{"title":"Application of acid-treated bentonite in catalytic synthesis of alkylated diphenylamine","authors":"Zhan Jiang, Yuan Zhong, Xuan Meng, Li Shi, Naiwang Liu","doi":"10.1007/s10934-024-01693-7","DOIUrl":"10.1007/s10934-024-01693-7","url":null,"abstract":"<div><p>Alkylated diphenylamines are amine antioxidants with excellent properties, widely used in lubricating oils or rubber products to enhance their antioxidant properties. Herein, hydrochloric acid treated bentonite was chosen as the catalyst for the synthesis of diisononyl diphenylamine (DNDPA) due to its excellent surface acidity, more suitable pore structure for this reaction, and easy separation from the product. In addition, the optimal concentration of hydrochloric acid during the acid treatment process was investigated. X-ray fluorescence analysis (XRF), X-ray diffraction (XRD), Pyridine-adsorbed Fourier transform infrared spectroscopy (Py-IR), N<sub>2</sub> adsorption and desorption isotherms, and inductively coupled plasma atomic emission spectroscopy (ICP-AES) were employed to analyze the crystal composition, acid properties, and pore structure of the catalyst samples. The experimental findings revealed that bentonite from the first mineral belt of China, activated through hydrochloric acid treatment, demonstrated the best catalytic performance in alkylated diphenylamine synthesis. Under optimally hydrochloric acid concentrations, the Brønsted acidity and specific surface area of bentonite catalysts were significantly enhanced. The optimal acid-treated bentonite achieved a remarkable 96% conversion of diphenylamine (DPA) in the reaction, with a corresponding 63% yield of DNDPA. Meanwhile, excessive hydrochloric acid concentrations adversely affected the structure of the bentonite, thereby impeding the catalytic reaction. Based on these reaction outcomes, the mechanism underlying the catalyst’s role in diphenylamine alkylation was investigated.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"189 - 202"},"PeriodicalIF":2.5,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Magnetic PVA/GO-based aerogel for efficient removal of oil pollution","authors":"Ali Shahabadi, Alireza Shakeri, Hasan Salehi","doi":"10.1007/s10934-024-01692-8","DOIUrl":"10.1007/s10934-024-01692-8","url":null,"abstract":"<div><p>In this study, we developed a new type of magnetic aerogel using polyvinyl alcohol and graphene oxide for oil pollution absorption. In addition, the Fe<sub>3</sub>O<sub>4</sub> nanoparticles are functionalized with polylauryl methacrylate and incorporated within the aerogel to enhance the absorption capacity and give magnetic properties to the aerogel. Graphene oxide was used as a surfactant to disperse hydrophobic nanoparticles in the structure of aerogels. Polyvinyl alcohol was used as the precursor, and glutaraldehyde was used as the crosslinking agent. Products were identified using FT-IR, FE-SEM, and EDS-mapping analyses. Aerogel with different ratios of magnetic nanoparticles and graphene oxide were synthesized to optimize the amount of performance of aerogel. Then, the absorption of oil pollutants in the water surface in these ratios was investigated. In addition to oil contaminants, the selected sample was tested on other hydrophobic samples such as edible oil, thinner, and chloroform. Also, the selected aerogel was tested several times using the absorption and drying cycle to evaluate the repeatability of the performance. In the end, the motion of the aerogel was examined using a magnet due to the presence of magnetic iron nanoparticles. The results showed aerogels as high porosity structures can be effective materials for absorbing and separating various hydrophobic pollutants from the environment.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"181 - 188"},"PeriodicalIF":2.5,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Regulating the hydrophobicity and pore structure of silica aerogel for thermal insulation under humid and high temperature conditions","authors":"Quan Liu, Yong Kong, Xiaodong Shen","doi":"10.1007/s10934-024-01691-9","DOIUrl":"10.1007/s10934-024-01691-9","url":null,"abstract":"<div><p>This study aims to develop a hydrophobic silica aerogel with high specific surface area and pore volume for thermal insulation under humid and high temperature conditions. Silica aerogels are synthesized through the co-condensation of methyltriethoxysilane (MTES) and tetraethoxysilane (TEOS). The effect of MTES/TEOS ratio on chemical structure, hydrophobicity, and pore structure is investigated. The silica aerogel with a MTES/TEOS molar ratio of 1.4 (MT1.4) exhibits the highest water contact angle of 134°, in addition to a surface area of 1052 m<sup>2</sup>/g and a pore volume of 3.17 cm<sup>3</sup>/g. Excessive MTES results in a slight decrease in water contact angle as well as a significant reduction in specific surface area and pore volume. MT1.4 retains a water contact angle of 101° at 300 °C and a specific surface area of 695 m<sup>2</sup>/g at 500 °C. The thermal conductivity of MT1.4 is as low as 0.0182 W/(m·K) at 25 °C. In the long term up to 42 d, the liquid water and moisture sorption capacities of MT1.4 are as low as 1.9 wt% and 4.7 wt%, respectively. The thermal conductivity hardly changes after water soaking and hygrothermal aging for 42 d. Compared to its state-of-the-art counterparts, MT1.4 offers significant advantages in term of pore structure, thermal stability, thermal insulation, and water resistance, and thus shows great promise for thermal insulation under humid and high temperature conditions.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"171 - 180"},"PeriodicalIF":2.5,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Luan Nguyen, Quynh Nhu Le Phan, Oanh Kieu Thi Vo, Tien Khoa Le, Van Viet Pham
{"title":"Evaluating the antibiotic adsorption ability of diatomite minerals: the role of treatment agents","authors":"The Luan Nguyen, Quynh Nhu Le Phan, Oanh Kieu Thi Vo, Tien Khoa Le, Van Viet Pham","doi":"10.1007/s10934-024-01684-8","DOIUrl":"10.1007/s10934-024-01684-8","url":null,"abstract":"<div><p>The uncontrolled use of antibiotics combined with ineffective treatment of antibiotic residues has led to the accumulation of antibiotics in water sources, directly threatening ecosystems. Diatomite is a good absorbent and a friendly and efficient material for removing pollutants from organic matter. In this study, diatomite from Phu Yen, Vietnam, was treated with many different agents, i.e., HCl, H<sub>2</sub>SO<sub>4</sub>, and NaOH, resulting in good adsorption of various antibiotics, such as tetracycline (TC), ciprofloxacin (CIP), tylosin (TLS), trimethoprim (TMP), and florfenicol (FFC). Furthermore, the TC antibiotic was chosen as a pollutant model to study the adsorption environment, adsorption isotherms, adsorption kinetics, and adsorption thermodynamics. Compared with raw diatomite, diatomite treated with HCl (D-HCl) has superior TC adsorption performance due to the removal of lotus fruit receptacle bud-like particles in the structure, which helps clear the pores and increases the specific surface area. Moreover, the change in surface charge leads to an increase in the electrostatic interaction force with TC. The TC adsorption of D-HCl follows the second-order kinetic model and the Langmuir isotherm model, with a high correlation coefficient of 0.9965 and a maximum adsorption capacity of 90.09 m<sup>2</sup> g<sup>−1</sup> at room temperature. The intra-particle diffusion model with the largest initial rate constant (k<sub>int1</sub>) suggests that the TC rapidly occupied the surface active sites of the D-HCl adsorbent. The high secondary rate constant (k<sub>int2</sub>) indicates that intragranular diffusion then proceeded immediately, which is consistent with the presence of multiple pore sizes within the D-HCl material. The adsorption thermodynamic parameters also show that the adsorption process occurs naturally, and the bond between TC and the D-HCl surface is a physical bond, indicating that D-HCl has potential for practical applications in removing antibiotics from water sources. Additionally, D-HCl shows promise as a perfect carrier in the field of photocatalysis.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"155 - 168"},"PeriodicalIF":2.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Betzabeth Jaime-Escalante, Alejandro Rolón-Ávalos, Luz María Melgoza-Contreras, Gerardo Leyva-Gómez, María José Emparan-Legaspi, Néstor Mendoza-Muñoz
{"title":"A novel strategy to produce spherical SBA-15 by polymeric macrospheres as a template for drug delivery","authors":"Betzabeth Jaime-Escalante, Alejandro Rolón-Ávalos, Luz María Melgoza-Contreras, Gerardo Leyva-Gómez, María José Emparan-Legaspi, Néstor Mendoza-Muñoz","doi":"10.1007/s10934-024-01685-7","DOIUrl":"10.1007/s10934-024-01685-7","url":null,"abstract":"<div><p>Mesoporous silica SBA-15 has been a material widely studied for drug delivery due to its high biocompatibility and chemical stability, its ordered mesoporous cavities allow drug loading. However, it has a non-spherical particle shape, making it difficult to use in solid dosage forms, where spherical particles are preferred for better flow and distribution. In this regard, this study presented a novel strategy to produce spheric SBA-15 using polymeric macrospheres of a pharmaceutical grade acidic-resistant copolymer (Eudragit<sup>®</sup>S) stabilized with Pluronic<sup>®</sup> 123, as a template. The macrospheres of Eudragit<sup>®</sup>S were fabricated using the double emulsion (W1/O/W2) solvent-diffusion technique and then were used as a template to synthesize macrospheres of SBA-15 following acidic hydrolysis. The physicochemical analysis revealed that the SBA-15 has a spherical morphology (SEM) with pores arranged in a hexagonal lattice (TEM). The XRD showed signals at 0.71, 0.88 y 2.03 °2θ, that were indexed at the Miller indices (100), (110), (200). Nitrogen adsorption-desorption isotherms (type IV, H3) demonstrated mesoporous characteristics with a pore size of 9.3 nm, a wall thickness of 3 nm, a pore volume of 0.7538 cm³g<sup>−1</sup>, and a surface area of 640 m²g<sup>−1</sup>. These SBA-15 macrospheres also showed a zero-order release of ibuprofen. The SBA-15 formation using Eudragit<sup>®</sup>S macrospheres suggests that P123 on the macrosphere acts as a spherical core, as shown by FT-IR analysis. The acid-resistant copolymer maintained macrosphere integrity, enabling the assembly of the SBA-15 mesostructure in a 24-hour manufacturing time under acidic conditions.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"32 1","pages":"141 - 153"},"PeriodicalIF":2.5,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10934-024-01685-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109755","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}