Article
Biochemistry & Molecular Biology
Fatma H. A. Mustafa, Ebtsam Kh. M. Gad ElRab, Rasha M. Kamel, Reda F. M. Elshaarawy
Summary: Chitosan/aspartic acid hydrogels were synthesized for the removal of MB dye from textile aqueous effluents. The hydrogels were characterized and confirmed to have successful preparations and MB dye adsorption. Batch experiments were conducted to investigate the effects of various factors on the adsorption process. The optimized conditions were determined for each hydrogel. The adsorption capacities of the hydrogels were compared, and both followed Freundlich isotherm model and pseudo-second-order kinetics for adsorption.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Ataollah Babakhani, Majid Sartaj
Summary: This study successfully removed cadmium from aqueous solution using Cd(II)-imprinted chitosan hydrogel beads. The synthesis was confirmed through various analyses, and the adsorption process parameters and mechanisms were determined through batch adsorption tests and isotherm investigations.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Deva Nand Sharma, Anil Yadav
Summary: This paper presents a novel adsorbent, Chhotidudhi, for the removal of nickel ions from aqueous solutions. The adsorbent was characterized using FTIR, XRD, SEM, and TGA. The adsorbent showed strong bond with metals and had an amorphous structure with a porous morphology. At optimized conditions, the adsorption capacity for the adsorbent was 52.4 mg/g and 109.05 mg/g, with removal efficiencies of 81.6% and 93.8% for ETR and ETA, respectively. The experimental results fit well with Langmuir and pseudo-second-order reactions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Nooraddein A. Ekrayem, Almahdi A. Alhwaige, Wael Elhrari, Mohamed Amer
Summary: The study developed eco-friendly polymeric spheres derived from crosslinking of chitosan (CTS) with different polyesters. The spheres showed enhanced structure and stability in aqueous media, with decreased hydrophilicity, and were effective in adsorbing lead ions (Pb2+) from aqueous solutions. The experimental data was fitted well with the Freundlich isotherm model, showing the best fit for the adsorption process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Bhaswati Devi, Netra Prova Baruah, Anasuya Bharadwaj, Arundhuti Devi
Summary: Elimination of excessive fluoride from the environment is a serious issue nowadays. In this study, a novel activated carbon supported tetrametallic oxide hybrid system was developed for fluoride removal. The adsorption performance of the system was investigated and it was found to follow Freundlich isotherm and pseudo-second order kinetics, indicating both physical and chemical adsorption mechanisms.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Ghaferah H. Al-Hazmi, Moamen S. Refat, Khaled F. Alshammari, Khadiza Tul Kubra, Ahmed Shahat
Summary: A simple synthesis method was used to prepare mesoporous alumina nanorods, which exhibited a high adsorption capacity for the anti-cancer medication DOX. The adsorption behavior of DOX on the alumina nanorods was evaluated under different conditions, and the Langmuir adsorption model was found to fit the data well. The adsorption kinetics followed a pseudo-second-order model, and the adsorption process was endothermic and spontaneous. The alumina nanorods also showed good adsorption performance for DOX in real water samples and could be used for wastewater treatment.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Environmental Sciences
Mian Fawaz Ahmed, Muhammad Asad Abbas, Azhar Mahmood, Nasir M. Ahmad, Hifza Rasheed, Muhammad Abdul Qadir, Asad Ullah Khan, Hazim Qiblawey, Shenmin Zhu, Rehan Sadiq, Niaz Ali Khan
Summary: Contaminated water with highly hazardous metals like arsenic poses a major challenge for humanity, hybrid beads synthesized with various concentrations of zero valent iron oxide nanoparticles impregnated into a polymer of chitosan show efficient removal of arsenic through adsorption and reduction processes. These novel beads of FeCh-40 are potent candidates for the treatment of water polluted with toxic arsenic metals.
Article
Chemistry, Physical
Hala A. Kiwaan, Farid Sh Mohamed, Ashraf A. El-Bindary, Naser A. El-Ghamaz, Heba R. Abo-Yassin, Mohamed A. El-Bindary
Summary: The study focused on the synthesis and characterization of metal organic frameworks, particularly the zeolitic imidazolate framework-7 (ZIF-7), and its adsorption behavior with dyes. The research analyzed the impact of various variables on batch processing, identified optimal test conditions, and investigated adsorption kinetics and thermodynamics. The study also explored the AC electrical conductivity of ZIF-7.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Swati Verma, Ki-Hyun Kim, Navneet Kumar, Satya Sundar Bhattacharya, Mu Naushad, Raj Kumar Dutta
Summary: In this study, ammonia-functionalized graphene oxide (NH(3)GO) sheets were synthesized via solvothermal method for the adsorptive removal of organic pollutants in water. The NH(3)GO sheets exhibited high adsorption capacity and partition coefficient for different types of organic pollutants. Thermodynamic analysis revealed the endothermic and spontaneous nature of the adsorption process.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Shifa Zuhara, Snigdhendubala Pradhan, Yahya Zakaria, Akshath Raghu Shetty, Gordon McKay
Summary: Global waste production is increasing due to population growth. This study focuses on utilizing gas-to-liquid (GTL)-derived biosolids as a significant waste from wastewater treatment. Activated biosolid waste (KBS) was characterized using various methods, showing increased surface area and metal content after activation. Additionally, magnetic properties were observed in the activated carbon, indicating potential for pollutant removal. Adsorption studies revealed a high adsorption capacity for methylene blue, with the Langmuir-Freundlich and Diffusion-chemisorption models providing the best fit. Thermodynamic calculations suggested that the adsorption process is exothermic, spontaneous, and favoring physisorption.
Article
Energy & Fuels
Ebru Kurtulbas, Irem Toprakci, Ayse Gizem Pekel, Selin Sahin
Summary: Decolorization is a crucial process in food production, and the bleaching process for removing colored pigments such as beta-carotene from vegetable oils has gained attention. Various macroporous resins were studied for their adsorption mechanism of beta-carotene from chloroform, with Amberlite XAD-2 showing the highest adsorption capacity. The findings suggest a physical adsorption process with endothermic and disordering tendencies.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Engineering, Chemical
Amnah Mohammed Alsuhaibani, Moamen S. Refat, A. A. Atta, M. G. El-Desouky, A. A. El-Bindary
Summary: This study utilizes NiO nanosphere as a tetracycline adsorbent, showing strong adsorption capability and efficient removal of tetracycline from wastewater. The research also reveals that chemical reactions play a primary role in the adsorption process and temperature affects the reactions.
DESALINATION AND WATER TREATMENT
(2022)
Article
Engineering, Environmental
Rana Malhas, Taiyeba Alamgir, Abrar Benhusain, Nadeen Alotaibi, Noor Alhaddad
Summary: In this study, the effects of various process parameters on the removal of oil from oily wastewater using Fe3O4 magnetic nanoparticles were investigated. The results showed that Fe3O4 nanoparticles are highly effective and reusable for oil removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Xiaxia Yang, Wenhong Yang, Yingjie Chen, Zixi Li, Gang Yang
Summary: Chitosan-stabilized iron-copper nanomaterials (CS-nZVI/Cu) were successfully prepared for nitrate removal with high efficiency. The experimental parameters, such as Cu loading, CS-nZVI/Cu dosage, initial nitrate concentration, and initial pH, were found to affect the removal efficiency. The addition of chitosan improved the dispersion and size of the CS-nZVI/Cu nanomaterials, while the chitosan encapsulation reduced the oxidation of iron and resulted in the main product Fe3O4. The kinetic data followed the first-order kinetic model and the Langmuir model showed good fit for NO3- removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Masahiro Umehara, Yoshiaki Kumamoto, Kenta Mukai, Akira Isogai
Summary: The adsorption isotherms, kinetics, and thermodynamics of fluoride ions (F-) on FeOOH powders in water were studied. The results showed that FeOOH/TOCN powder is an excellent and efficient F- adsorbent in water. The adsorption of F- on FeOOH initially formed a monolayer through physical adsorption, and the adsorption kinetics followed the pseudo-second-order model. The thermodynamic analysis indicated that the adsorption process was spontaneous in water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Rohullah Zamani, Saeed Kazemi Najafi, Habibollah Younesi
Summary: This study investigated the use of MDF sanding dust as a precursor for synthesizing activated carbon and its impact as an additive in UF resin for MDF production. The addition of activated carbon significantly improved the physical and mechanical properties of MDF boards while reducing formaldehyde emissions.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Amin Heydari Espoui, Saeedeh Gilani Larimi, Ghasem Najafpour Darzi
Summary: This study investigated the production of protease enzymes by Bacillus licheniformis bacteria and optimized the production conditions. The results showed that the produced protease had high activity under specific cultivation conditions and exhibited good adaptability to different substrates and environmental factors.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Neda Akhlaghi, Ghasem Najafpour-Darzi
Summary: This study immobilized lipase using a novel metal-chelating nanostructure, and investigated the influential factors for enzyme adsorption. The immobilized lipase showed remarkable thermal stability and catalytic activity, indicating the potential application of this non-covalent enzyme immobilization method.
MOLECULAR CATALYSIS
(2022)
Article
Biotechnology & Applied Microbiology
Tahmineh Ebadi, Ghasem D. Najafpour, Habibollah Younesi, Maedeh Mohammadi
Summary: A yeast strain isolated from pesticide-contaminated agricultural soil demonstrated high efficiency in degrading Diazinon, making it a potential candidate for large-scale bioremediation applications.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Environmental Sciences
Seyedeh Elaheh Mousavi, Habibollah Younesi, Nader Bahramifar, Pramila Tamunaidu, Hassan Karimi-Maleh
Summary: In this study, magnetic iron particles based on metal-organic frameworks (MOFs) were synthesized as photocatalysts for textile dye wastewater treatment. A novel two-step dry method was used to synthesize Fe-MOFs derived magnetic carbon nanocomposite and alpha-Fe2O3@C@SiO2/TiO2. The as-synthesized nanocomposite materials showed enhanced photocatalytic activity and degradation efficiency for Reactive yellow 145 (RY145) dye. The study also provided insights into the structural characterization and reaction kinetics of the photocatalytic process.
Article
Energy & Fuels
Bita Roshanravan, Habibollah Younesi, Mahdi Abdollahi, Mostafa Rahimnejad, Sang-Hyun Pyo
Summary: This study aims to synthesize a proton exchange membrane by incorporating a sulfonated MIL-100(Fe) metal-organic framework into the sulfonated polysulfone, and investigate its capability in organic degradation and electricity generation in microbial fuel cells. The results show that the composite membrane with sulfonated MIL-100(Fe) significantly improves proton conductivity and power output.
Article
Environmental Sciences
Mohammad Eisapour, Nader Bahramifar, Habibollah Younesi
Summary: In this research, branched magnetic nanoparticles with dendritic amine groups were prepared and functionalized. The Fe3O4@SiO2/Branched showed high adsorption capacity for metal ions and the adsorption process was temperature-dependent.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Analytical
Ali Nourbakhsh, Mostafa Rahimnejad, Maryam Asghary, Habibollah Younesi
Summary: This study developed a sensitive platform based on silver nanoparticles/graphene nanoplates modified graphite electrode for the simultaneous and selective determination of heavy metal ions in tap water. The experimental results showed that the electrochemical sensor exhibited high practical applicability, reproducibility, and stability in detecting heavy metal ions.
MICROCHEMICAL JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Saeedeh Gilani, Ghasem Najafpour
Summary: This study optimized the extraction of cinnamic acid and cinnamaldehyde from cinnamon bark, investigating the impact of different solvent types, temperature, process time, solid: solvent portion, and particle size on the yield. The obtained extraction samples were analyzed by HPLC with a UV detector.
PROCESS BIOCHEMISTRY
(2022)
Article
Engineering, Environmental
Zahra Esania, Habibollah Younesi, Mohsen Nowrouzi, Hassan Karimi-Maleh
Summary: In this study, a ZnO-Fe3O4/TiO2 nanocomposite derived from MIL-125(Ti) was investigated for its photocatalytic efficiency in the removal of Reactive Blue 21 dye under UV light irradiation. The experimental results showed that ZnO-Fe3O4/TiO2 had significantly higher photocatalytic degradation capability compared to pure MIL-125(Ti). The nanocomposite also exhibited good stability after multiple catalytic cycles. Therefore, ZnO-Fe3O4/TiO2 shows promise as a new alternative for reducing colored dye wastewater from the textile industry.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Ava Heidari, Hamid Boleydei, Abbas Rohani, Hangyong Ray Lu, Habibollah Younesi
Summary: This study aims to find the most sustainable option for capturing CO2 from environmental, economic, and technical perspectives. By integrating Life Cycle Assessment (LCA), Life Cycle Cost (LCC) analysis, and CO2 adsorption capacity, the study reveals that activated carbon (AC) is the most sustainable option, while graphene has the highest energy consumption.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Microbiology
Zahra Dinpazhooh, Seyyed Vahid Niknezhad, Fardin Fadaei, Saeedeh Shaker, Ghasem Najafpour, Younes Ghasemi, Pegah Mousavi, Mohammad Hossein Morowvat
Summary: This study evaluates newly isolated microalgal strains from Iran as a potential source for high-value products. The selected strains, predominantly belonging to Scenedesmus sp. and Desmodesmus sp., showed high productivity and CO2 fixation rates. The identified strains have great potential for SCP, beta-carotene, and omega-3 production, as well as CO2 fixation for environmental purposes.
INTERNATIONAL JOURNAL OF MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Monire Ghorbani, Morteza Hosseini, Ghasem Najafpour, Reza Hajimohammadi
Summary: In this study, a biosurfactant produced by Pseudomonas aeruginosa PTCC 1340 using sunflower oil as a carbon source was characterized for its ability to reduce surface tension and facilitate oily sludge removal. The biosurfactant showed high rhamnolipid production, resulting in effective removal of sticky oily sludge from oil-contaminated vessels with a 100% reduction in sludge volume. This environmentally friendly and cost-efficient technology has the potential for practical application in the petroleum industry.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Religion
Ghasem Darzi, Abbas Ahmadvand, Musa Nushi
Summary: This study reveals that the Qur'an contains masculine, feminine, and egalitarian gender discourses, with gender equality achieved through linguistic methods and the simultaneous use of masculine and feminine markers.
HTS TEOLOGIESE STUDIES-THEOLOGICAL STUDIES
(2021)
