Article
Biochemistry & Molecular Biology
Li Xiao, Hanbin Shan, Yi Wu
Summary: Epichlorohydrin-modified chitosan-Schiff base composite (CS/24Cl/ECH) was characterized using FT-IR, XRD, DSC, and SEM. The removal efficiency of Pb(II) ions from aqueous solution was investigated. The maximum adsorption capacity of Pb(II) ions was found to be 170 mg/g. The adsorption mechanism involved chemical coordination between Pb(II) ions and the active sites on the surface of CS/24Cl/ECH composite. CS/24Cl/ECH also showed excellent recyclability and potential for adsorption of other heavy metal ions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Metin Acikyildiz, Ahmet Gurses, Kubra Gunes, Elif Sahin
Summary: The use of a natural clay sample as a low-cost and potential adsorbent for reducing dye amounts in textile industry effluents was investigated. The physicochemical and topographic characteristics of the clay sample were determined, and it was found that the major clay mineral present was smectite with partial impurities. The adsorption process of commercial textile dyes onto the clay was studied by evaluating various operational parameters and analyzing the kinetics and equilibrium data.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Prashant Mishra, Kaman Singh, Utkarsh Dixit
Summary: Waste pea shells were utilized to synthesize an efficient adsorbent (USAPS) for phenol removal, with the use of ultrasound during the chemical activation enhancing adsorption properties. Factors such as pH, temperature, USAPS dose, phenol concentration, and inorganic salt addition were studied to understand phenol adsorption behavior. The kinetic and equilibrium data were best fitted with the pseudo-second-order kinetic and Langmuir models, respectively, indicating a physical adsorption process with no structural alteration at the adsorbent-adsorbate interface.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Chemistry, Analytical
Umesh Fegade, Inamuddin, Tariq Altalhi, Mohd Imran Ahamed, Suvardhan Kanchi
Summary: FeZnOAC was successfully synthesized as an adsorbent for the removal of Fuchsine dye, showing efficient performance and high adsorption capacity. The adsorption behavior followed a pseudo-second-order model and the Langmuir isothermal model, with adsorption capacity dependent on temperature and system nature. FeZnOAC proves to be a potential adsorbent for Fuchsine dye removal from industrial wastewater and can be regenerated for multiple uses.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Afzan Mahmad, Teh Ubaidah Noh, Nurul Izzah Khalid
Summary: In order to achieve the Sustainable Development Goals (SDGs) 2023, it is important to prioritize the reduction of water pollution, including bisphenols pollution, to protect the environment and human health. Metal-organic frameworks (MOFs), particularly MILs (Material Institute of Lavoisier), have emerged as promising materials for bisphenols adsorption due to their adaptability and unique properties. This review provides an overview of the recent updates on MILs, including their synthesis techniques, mechanisms, equilibrium, kinetic modeling, and thermodynamic studies, as well as their feasibility and challenges in bisphenols adsorption. However, further research is needed to understand the mechanisms underlying MILs and enable their practical use in bisphenols remediation at a commercial scale.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Tatiana C. Almeida, Jessica N. Cunha, Eliane D'Elia, Oscar Rosa Mattos
Summary: This article critically evaluates the literature on the use of the Langmuir isotherm in inhibitor research. The validity of the Langmuir isotherm has been challenged, particularly by Walczak et al. (2019), leading to its rejection by some researchers. Imposing limitations on the Langmuir isotherm would affect heterogeneous kinetics, impedance interpretation, and other transient techniques. This discussion paper provides a more in-depth analysis of these aspects.
Article
Environmental Sciences
Waseem Mahyoob, Zuhier Alakayleh, Husam A. Abu Hajar, Layaly Al-Mawla, Abdelmnim M. Altwaiq, Mayyas Al-Remawi, Faisal Al-Akayleh
Summary: Olive harvesting generates a large amount of agricultural waste, and this study explores the use of co-processed biomass from olive tree leaves for lead adsorption in contaminated water. It was found that biomass co-processing enhances the adsorption capacity of lead, with smaller biomass particle size leading to higher adsorption efficiency. The maximum adsorption capacity was observed at pH 5, and the adsorption process was rapid with most adsorption occurring within the first 20 minutes. Increasing the adsorbent amount led to an increase in removal efficiency, while increasing the initial lead concentration resulted in a decrease in removal efficiency.
JOURNAL OF CONTAMINANT HYDROLOGY
(2022)
Article
Engineering, Environmental
Malihe Pooresmaeil, Hassan Namazi
Summary: In this study, magnetic chitosan-coated triazine-based covalent organic frameworks were successfully fabricated and used for the removal of diclofenac sodium. The bio-adsorbent exhibited a nanoporous structure with a large specific surface area and excellent adsorption capacity, showing potential for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
M. T. Amin, A. A. Alazba, M. Shafiq
Summary: This study investigated the efficiency of NiFe-layered double hydroxide (LDH), functionalized bentonite clay (F-bentonite), and their composites as adsorbents for removing lead ions (Pb2+) in aqueous solutions. The results showed that the equilibrium contact time was 60 minutes with a maximum removal efficiency of nearly 99%. The maximum adsorption capacity of 151 mg g(-1) was observed when using the composite adsorbent of LDH and functionalized bentonite. The best-fit models for the adsorption process suggested monolayer adsorption, physical adsorption, and chemisorption as controlling mechanisms.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Biotechnology & Applied Microbiology
Jian Feng, Li Wang, Xia Ran, Bo Xiao, Li Lei, Jinming Zhu, Rong Li, Xiaolan Xi, Guangwei Feng
Summary: This study constructed a 3/g-C3N4 heterojunction by incorporating perovskite ErFeO3 nanoparticles into mesoporous g-C3N4 nanosheets, which exhibited optimal adsorption and photocatalytic performance for the removal of low concentration antibiotic contaminants. The ultrathin and porous structure of the nanosheets increased the specific surface area and reaction active sites, while the heterojunction accelerated the separation of charge carriers and inhibited recombination. This research provides an efficient alternative for the treatment of antibiotic wastewater through the synergistic effect of adsorption and photocatalytic degradation.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Engineering, Chemical
Dmitriy Berillo, Aknazar Arysbek
Summary: This study demonstrates the effective removal of silver nanoparticles (AgNPs) using a chitosan-based cryogel, which has potential applications in agriculture, water treatment, and industrial plants. The adsorbent is economically viable, has high affinity toward metal nanoparticles, is biodegradable and biocompatible, and displays good removal efficiency of nanoparticles.
Article
Chemistry, Inorganic & Nuclear
Sebastitian Pizarro, Michael Araya, Vivian Garcia, Alvaro Delgadillo
Summary: The Cobaloxime [Co(dpgH)2Cl(INA)] compound was synthesized and its electrochemical behavior and adsorption equilibrium on nanocrystalline titanium dioxide thin films were studied. The addition of NaBH4 resulted in the appearance of new bands in the visible spectrum, which were attributed to metal-to-ligand charge transfer. Theoretical calculations supported this explanation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Rahmi, Muhammad Iqhrammullah, Ulfa Audina, Husni Husin, Haya Fathana
Summary: A film adsorbent OC/Chi-EDTA was prepared from OPEFB-based charcoal through a simple phase inversion technique, showing advantageous properties for Cd (II) adsorptive removal. The material exhibited high tensile strength, adsorption capacity, and thermal stability, with successful adsorption mechanisms of electrostatic attraction and complexation for Cd (II) uptake.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Chemistry, Multidisciplinary
Mohamed A. Farghali, Abdelfattah M. Selim, Hanem F. Khater, Noha Bagato, Walaa Alharbi, Khadijah H. Alharbi, Ibrahim Taha Radwan
Summary: This study examined the adsorption effectiveness of MgAl-layered double hydroxide (MgAl-LDH) nanosorbents on Congo red (CR) dye in aqueous solutions. The adsorption parameters and physicochemical characteristics of the synthesized MgAl-LDH were investigated, and the results showed rapid adsorption and high adsorption capacity for the CR dye.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Environmental Sciences
Muhammad Imran Khan, Abdallah Shanableh, Akram M. Alfantazi, Mushtaq Hussain Lashari, Suryyia Manzoor, Ramsha Anwer, Nosheen Farooq, Farid A. Harraz, Mabkhoot Alsaiari, M. Faisal
Summary: This study investigated the discharge percentage of anionic dye Eosin-B (EB) using commercially available QPPO/PVA based anion exchange membrane (AEM) BIII at room temperature. The impact of EB initial concentration, membrane dosage, ionic strength, contact time, and temperature on EB removal percentage was examined. The results showed that the EB removal percentage increased from 22% to 99.56% with contact time and from 38.15% to 99.56% with membrane dosage, while it decreased from 99.56% to 29%, 54.61%, and 92.22% with increasing initial concentration of EB, ionic strength, and temperature, respectively.
Article
Biotechnology & Applied Microbiology
Rachid Bannari, Abdelfettah Bannari, Patrick Vermette, Pierre Proulx
BIOTECHNOLOGY AND BIOENGINEERING
(2012)
Article
Engineering, Chemical
R. Bannari, A. Bannari, B. Selma, P. Proulx
CHEMICAL ENGINEERING SCIENCE
(2011)
Article
Computer Science, Interdisciplinary Applications
F. Kerdouss, A. Bannari, P. Proulx, R. Bannari, M. Skrga, Y. Labrecque
COMPUTERS & CHEMICAL ENGINEERING
(2008)
Article
Computer Science, Interdisciplinary Applications
Rachid Bannari, Fouzi Kerdouss, Brahim Selma, Abdelfettah Bannari, Pierre Proulx
COMPUTERS & CHEMICAL ENGINEERING
(2008)
Proceedings Paper
Mathematics, Applied
Rachid Bannnari, Ghizlane Zineb Hiwa, Abdelfettah Bannari, Mly Taib Belghiti
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2016 (ICNAAM-2016)
(2017)
Article
Instruments & Instrumentation
Yves Martin, Mariette Lepine, Abdelfettah Bannari, Patrick Vermette
REVIEW OF SCIENTIFIC INSTRUMENTS
(2007)
Article
Energy & Fuels
A Bannari, C Cirtiu, F Kerdouss, P Proulx, H Ménard
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2006)
Article
Engineering, Chemical
F Kerdouss, A Bannari, P Proulx
CHEMICAL ENGINEERING SCIENCE
(2006)
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)