Article
Chemistry, Multidisciplinary
Ali Shafiee, Mahmood Karimi Abdolmaleki, Yulianna Laurencin, Geysira G. Vela, Carlo Alberto Velazquez, David J. G. Irwin, Seyed Mohammad Davachi, Cameron Bayne Forbes, Stephanie MacQuarrie
Summary: Designing an efficient and sustainable adsorbent is crucial for the recovery of heparin. In this study, APTES-functionalized biochar was used as an adsorbent to recover heparin from porcine intestinal mucosa. The N-Char demonstrated high adsorption capacity and stability, with the ability to recover 60% of heparin and improved anticoagulant potency compared to a commercial resin.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Engineering, Chemical
Lady Johana Cardenas, Liliana Giraldo, Juan Carlos Moreno-Pirajan
Summary: This study characterized and investigated the adsorption properties of functionalized SBA-15/PA material, showing that the modified polyaniline silica had higher acid-base values and phenol adsorption capacity.
Article
Nuclear Science & Technology
Shuqiong Liu, Jianqiang Luo, Jianguo Ma, Jianqiang Li, Song Li, Lina Meng, Shujuan Liu
Summary: The novel amine-functionalized magnetic large-pore SBA-15 showed fast adsorption rates for uranium removal, with optimum pH of 6 and good adsorption capacity and kinetics. Compared to the pristine adsorbent, its performance was significantly improved, with spontaneous and endothermic adsorption of uranium. Additionally, it demonstrated excellent recyclability even after four consecutive adsorption-desorption cycles.
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Maria Ulfa, Hafid Al Afif, Teguh Endah Saraswati, Hasliza Bahruji
Summary: TiO2/SBA-15 photocatalysts were prepared by impregnating low loading titania to SBA-15, which exhibited efficient adsorption and photodegradation for fast methylene blue removal. The low TiO2 loading enhanced TiO2 dispersion and maintained the SBA-15 porosity. The high interfacial interaction of TiO2/SBA-15 improved TiO2 photoresponse, resulting in a stronger redox ability. The pseudo-second-order kinetic model was followed for methylene blue removal on 10%TiO2/SBA-15, reaching 67% efficiency in 90 min. The synergy between adsorption and photodegradation was responsible for the fast methylene blue removal. The importance of maintaining the adsorption capacity in SBA-15 after TiO2 impregnation was highlighted for efficient adsorption-photodegradation processes.
Article
Chemistry, Physical
Huafan Li, Tiantian She, Guofeng Chen, Menghua Sun, Libo Niu, Guoyi Bai
Summary: In this study, a stable Pd/NH2-SBA-15 catalyst was prepared using an ammonia evaporation method with amino-functionalized SBA-15 support. This catalyst exhibited excellent catalytic performance and stability in the selective hydrogenation of phenol to produce cyclohexanone, attributed to the enhanced activity of supported Pd nanoparticles by amine functionalization. TEM and XPS results confirmed the strong interaction between Pd particles and the amine-functionalized SBA-15 support, inhibiting particle agglomeration and improving catalyst stability during the reaction process.
MOLECULAR CATALYSIS
(2021)
Article
Engineering, Chemical
Seyedeh Maryam Hafezian, Pourya Biparva, Ahmadreza Bekhradnia, Seyed Naser Azizi
Summary: This study demonstrates a novel material for highly efficient adsorption of sulforaphane based on functionalized SBA-15 nanoparticles. The introduction of amine functional groups on SBA-15 showed the highest adsorption efficiency of about 97% for sulforaphane. Langmuir and Redlich-Peterson isotherm models were the best-fitting models, while the pseudo-first-order kinetic model described the adsorption process well.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Applied
Lin Ge, Jianwen Wei, Linlin Geng, Siqi Chen, Lei Liao
Summary: The amine-modified ZSM-5/SBA-16 composite exhibited good CO2 adsorption performance, with the best adsorption capacity of 1.630 mmol/g at 90 degrees C and TEPA loading of 55%. The CO2 adsorption mechanism of the bifunctionalized material was found to be a synergistic effect of physical adsorption and chemical adsorption. The composite material displayed promising industrial applications for CO2 capture from actual flue gas after desulfurization, with a saturated adsorption capacity of 1.496 mmol/g after five regeneration cycles.
JOURNAL OF POROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hani Zeidan, Mukaddes Can, Mustafa Esen Marti
Summary: In this study, amine-functionalized SBA-15 (AF-SBA-15) was synthesized and evaluated for the removal of anionic synthetic dye from aqueous media. The results showed that AF-SBA-15 exhibited excellent adsorption capacity and efficiency for the removal of toxic colorants.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Biotechnology & Applied Microbiology
Hengmin Miao, Maosheng Li, Fang Wang, Jiao Li, Ying-Wu Lin, Jiakun Xu
Summary: In this study, the mesoporous molecular sieve SBA-15 was successfully modified with APTES and GPTMS, resulting in improved immobilization of Mb and enhanced reusability and storage stability.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Applied
Chi Hieu Nguyen, Chun-Chieh Fu, Ze-Han Chen, Thi Tuong Van Tran, Shou-Hsuan Liu, Ruey-Shin Juang
Summary: The study modified SBA-15 particles with APTES, increasing the adsorption capacity for urea and creatinine. Competitive hydrogen bonding promoted the preferential adsorption of urea over hippuric acid in binary mixtures on the APTES-modified SBA-15 adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Fenglei Liu, Anjie Wang, Miao Xiang, Qingyuan Hu, Baowei Hu
Summary: In this study, a magnetic amine-functionalized mesoporous silica adsorbent was successfully fabricated and utilized for the removal of chromium (VI) and uranium (VI) in water. Experimental results showed the maximum adsorption capacities under optimal water conditions for both contaminants. The analysis indicated that uranium (VI) was mainly removed through surface complexation, while chromium (VI) was adsorbed electrostatically and then reduced.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Applied
Mohamed Chafik Bourkaib, Pierrick Gaudin, Francois Vibert, Yann Guiavarc'h, Stephane Delaunay, Xavier Framboisier, Catherine Humeau, Isabelle Chevalot, Jean-Luc Blin
Summary: This study investigated the influence of porosity and APTES functionalization of silica support on the immobilization and activities of aminoacylases. It was found that APTES functionalization improved enzyme loading and immobilization rate, but the catalytic performances varied depending on the type of silica material used for immobilization.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Joanna Dobrzynska
Summary: The study compared the adsorption capabilities of SBA-15 type materials functionalized with different compounds for arsenic, chromium, and selenium oxyanions removal from aqueous solution. Results indicated that amine- and thiol-functionalized mesoporous silica were effective adsorbents for the removal of these pollutants.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Physical
Sai Wu, Cuizhen Wang, Yuqin Jin, Guangzhu Zhou, Lingyan Zhang, Peipei Yu, Luguang Sun
Summary: A reusable dual-functional super-paramagnetic adsorbent DECFASEs was successfully prepared for Ni2+ removal, with a maximum adsorption capacity of 19.22 mg/g. After 4 recycles, the Ni2+ adsorption capacity of DECFASEs slightly decreased. XPS results confirmed the chemical interaction between Ni2+ and DECFASEs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Environmental Sciences
Zeinab Ezzeddine, Isabelle Batonneau-Gener, Yannick Pouilloux
Summary: The removal of zinc ions from water was studied using two types of ordered mesoporous silica (SBA-15 and SBA-16). Both materials were modified with APTES and EDTA through post grafting methods. The modified adsorbents were characterized by various analytical techniques, and the structural integrity was maintained. Optimal adsorption conditions and maximum adsorption capacity were determined through experimental tests, and the regenerated adsorbent showed no significant decline in adsorption efficiency.
Article
Chemistry, Physical
R. Ojeda-Lopez, G. Ramos-Sanchez, J. M. Esparza-Schulz, L. Lartundo, A. Dominguez-Ortiz
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Applied
Reyna Ojeda-Lopez, Erendira Aguilar-Huerta, Debora A. S. Maia, Diana C. S. Azevedo, Carlos Felipe, A. Dominguez-Ortiz
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Chemistry, Physical
Reyna Ojeda-Lopez, Guadalupe Ramos-Sanchez, Cinthia Garcia-Mendoza, Diana C. S. Azevedo, Ariel Guzman-Vargas, Carlos Felipe
Summary: This study investigates the adsorption performance of carbon microfibers synthesized at different calcination temperatures towards three molecules (N-2, CO2, and CH4). The findings suggest that samples calcined at lower and moderate temperatures show better nitrogen adsorption performance, which is attributed to their higher carbonization temperatures.
Review
Environmental Sciences
Obdulia Medina-Juarez, Israel Rangel-Vazquez, Reyna Ojeda-Lopez, Miguel Angel Garcia-Sanchez, Fernando Rojas-Gonzalez
Summary: This study investigates the changes in mesoporous materials SBA-15 and KIT-6 under thermo-alkaline treatment, showing that the treated substrates have a higher affinity for CO2 adsorption. The research also demonstrates the importance of porous curvature and the size of amine species in improving CO2 capture efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Reyna Ojeda-Lopez, Enrique Vilarrasa-Garcia, Diana C. S. Azevedo, Carlos Felipe, Juan A. Cecilia, Enrique Rodriguez-Castellon
Summary: The CO2 selectivity in CO2:CH(4) and CO2:N-2 mixtures has been studied in carbon materials with different morphologies and properties. The results show that carbon microfibers have higher CO2 adsorption capacity and selectivity, especially at higher pressures. They also exhibit better CO2 selectivity in CO2:CH4 mixtures. These findings suggest that carbon microfibers are a promising material for CO2 capture and separation.
Article
Engineering, Multidisciplinary
Angel Emilio Garcia-Dominguez, Gilberto Torres-Torres, Juan Carlos Arevalo-Perez, Adib Silahua-Pavon, Cecilia Sanchez-Trinidad, Srinivas Godavarthi, Reyna Ojeda-Lopez, Uriel Alejandro Sierra-Gomez, Adrian Cervantes-Uribe
Summary: The effect of urea on the photodegradation of TiO2-CeO2 and paracetamol was studied using simplex-centroid mixture analysis. The results showed that urea influenced particle morphology and bandgap, while the surface area of the samples depended on their crystallinity. The value of the kinetic constant increased with the amount of urea, and the selectivity to CO2 was controlled by cerium oxide.
RESULTS IN ENGINEERING
(2022)
Article
Materials Science, Composites
Reyna Ojeda-Lopez, Armando Dominguez-Ortiz, Carlos Felipe, A. Cervantes-Uribe, Isaac J. Perez-Hermosillo, J. Marcos Esparza-Schulz
Summary: The isosteric enthalpy of adsorption of CO2 in three different micro and mesoporous materials was evaluated, revealing variations in the adsorption behavior of CO2 at different temperatures and materials. Physisorption dominates in CMF and SBA-15 materials, while chemisorption predominates in SBA-15_APTES, with the temperature significantly impacting the enthalpy of adsorption values.
JOURNAL OF COMPOSITES SCIENCE
(2021)
Article
Materials Science, Composites
Carolina Rodriguez-Martinez, Angel Emilio Garcia-Dominguez, Fernando Guerrero-Robles, Rafael Omar Saavedra-Diaz, Gilberto Torres-Torres, Carlos Felipe, Reyna Ojeda-Lopez, Adib Silahua-Pavon, Adrian Cervantes-Uribe
JOURNAL OF COMPOSITES SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Reyna Ojeda-Lopez, J. Marcos Esparza-Schulz, Isaac J. Perez-Hermosillo, Armin Hernandez-Gordillo, Armando Dominguez-Ortiz
Article
Materials Science, Composites
Adrian Cervantes Uribe, Gloria Alicia Del Angel Montes, Gilberto Torres-Torres, Armando Vazquez-Zavala, Federico Gonzalez-Garcia, Adrian Cordero-Garcia, Reyna Ojeda-Lopez
JOURNAL OF COMPOSITES SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Adib A. Silahua-Pavon, Gilberto Torres-Torres, Juan Carlos Arevalo-Perez, Adrian Cervantes-Uribe, Zenaida Guerra-Que, Adrian Cordero-Garcia, Alejandra Espinosa de los Monteros, Jorge N. Beltramini
Article
Chemistry, Multidisciplinary
Laura Munguia-Cortes, Isaac Perez-Hermosillo, Reyna Ojeda-Lopez, Juan Marcos Esparza-Schulz, Carlos Felipe-Mendoza, Adrian Cervantes-Uribe, Armando Dominguez-Ortiz
JOURNAL OF THE MEXICAN CHEMICAL SOCIETY
(2017)
