Article
Chemistry, Physical
Tariq A. Altalhi, Mohamed M. Ibrahim, Gaber A. M. Mersal, M. H. H. Mahmoud, Tushar Kumeria, Mohamed G. El-Desouky, Ashraf A. El-Bindary, Mohamed A. El-Bindary
Summary: In this study, mango seeds activated carbon (MSAC) nanoparticles were prepared with high biocompatibility for potential use as drug carriers. The experimental results showed that the nanocomposite significantly enhanced the adsorption performance of the anti-cancer drug DOX, indicating its potential in drug delivery applications.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Ceren Kutahyali Aslani, Onur Amik
Summary: This study aimed to produce a high-capacity and stable adsorbent for separating uranium ions from the nuclear fuel cycle at different pHs and concentrations. The AC/PAN composite adsorbent showed promising results in uranium sorption, with the adsorption mechanism following pseudo-second-order kinetics. Thermodynamic analysis revealed that the adsorption system was exothermic, spontaneous, and favorable.
APPLIED RADIATION AND ISOTOPES
(2021)
Article
Energy & Fuels
James F. Amaku, Jude C. Nnaji, Segun A. Ogundare, Kovo G. Akpomie, Comfort M. Ngwu, Helen O. Chukwuemeka-Okorie, Siyaka Mj Zubairu, Boniface I. Ugwu, Stephen A. Odoemelam, Jeanet Conradie
Summary: In this research, a novel green tillite-based adsorbent (CMT) was synthesized by modifying the surface of natural/pristine tillite (PT) with Chrysophyllum albidum stem bark extract. CMT showed higher efficiency and adsorption capacity for Cr(VI) removal compared to most materials used for this purpose. The results also demonstrated the reusability of CMT and the chemisorption as the rate-controlling step. This study highlights the potential of Chrysophyllum albidum stem bark extract anchored on tillite as a green adsorbent for efficient Cr(VI) removal from polluted water.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Environmental Studies
Adeyinka Sikiru Yusuff
Summary: The study investigated the use of Aluminium oxide modified onion skin waste for the adsorption of metal ions (Pb2+ and Cd2+) and analyzed the relationships between sorbent properties and metal ion sorption. Optimum values for initial concentration, contact time, adsorbent dosage, and pH were found to be 10 mg/L, 120 min, 1.6 g/L, and 6.0 respectively, resulting in maximum removal percentages of 91.23% for Pb2+ and 94.10% for Cd2+. Isotherm and kinetic studies suggested a multilayer adsorbate-adsorbent system with chemisorption mechanism dominance, and concluded that onion skin waste is a viable, cheap, and effective alternative for removing heavy metal ions from water/wastewater.
ENERGY & ENVIRONMENT
(2022)
Article
Environmental Sciences
A. Aldemir, A. Turan, A. R. Kul, H. Koyuncu
Summary: In this study, the performance of pinecone sawdust (PCS) as an adsorbent for Basic Red 46 (BR 46) dye removal was investigated. PCS exhibited effective adsorption capacity for BR 46 dye under alkaline conditions. The adsorption process was found to be spontaneous and favorable.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Tolga Bahadir, Ismail Simsek, Sevket Tulun, Hakan Celebi
Summary: This study investigated the adsorption abilities and surface properties of tea waste, banana peels, almond shells, and eggshells for removing lead from water. The results showed that banana peels had the highest removal efficiency and the adsorption mechanism likely involved physical and cooperative adsorption processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Najeeb Ur Rahman, Ihsan Ullah, Sultan Alam, Muhammad Sufaid Khan, Luqman Ali Shah, Ivar Zekker, Juris Burlakovs, Anna Kallistova, Nikolai Pimenov, Zane Vincevica-Gaile, Yahya Jani, Mohammad Zahoor
Summary: The study showed that chemically activated Ailanthus altissima sawdust can be used as a suitable adsorbent for removing harmful substances, especially dyes, from polluted waters. The Freundlich model and pseudo second-order kinetic model were found to be the most suitable for calculating adsorption parameters.
Article
Chemistry, Analytical
Roshanak Rostamian, Mahmoud Firouzzare
Summary: Chitosan nanofibers were successfully synthesized from shrimp shell wastes by gamma irradiation and used for uranium adsorption from aqueous solution. The maximum adsorption capacity reached 142 mg g(-1) under optimal conditions of pH 6 and contact time 210 min. The adsorption process followed the Langmuir isotherm model and exhibited a pseudo-second-order kinetic model.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Chemistry, Physical
Ahmed Shahat, Khadiza Tul Kubra, Adel El-marghany
Summary: A high-potential nanoadsorbent was synthesized and characterized for its efficiency in adsorbing triclosan (TCS) from aqueous solutions. The adsorption equilibrium was found to be influenced by the pH of the solution. The adsorption process followed a chemisorption technique, as evidenced by fitting the adsorption isotherm models to a Langmuir model. The synthesized MCNS adsorbent showed remarkable reusability and renderability, making it suitable for water filtration and industrial wastewater treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
K. Kayalvizhi, N. M. Alhaji, D. Saravanakkumar, S. Beer Mohamed, K. Kaviyarasu, A. Ayeshamariam, Amal M. Al-Mohaimeed, Mohamed Ragab AbdelGawwad, Mohamed S. Elshikh
Summary: This study investigated the adsorption behavior of biomaterial activated Sawdust-Chitosan nanocomposite beads on Ni (II) and Cu (II) ions removal from aqueous solutions. The structural analysis and surface morphology were evaluated using PXRD, TEM, and EDAX techniques, while the functional groups behavior was discussed using FTIR technique. The adsorption properties were determined using isotherm models and the maximum adsorption capacity was inferred.
ENVIRONMENTAL RESEARCH
(2022)
Article
Polymer Science
Amina Abbaz, Sihem Arris, Gianluca Viscusi, Asma Ayat, Halima Aissaoui, Yasser Boumezough
Summary: Water pollution is a pressing issue that requires immediate attention. This study developed hydrogel beads made from sodium alginate and pomegranate fruit peels for the purpose of adsorbing Safranin O dye in aqueous solutions. The results showed that the synthesized beads had favorable adsorption properties, with maximum adsorption capacity reaching 30.769 mg/g at 293 K. The study also provided insights into the adsorption kinetics, concentration dependence, and thermodynamics of the dye adsorption process.
Article
Chemistry, Physical
Qing Ye, Gongming Qian, Lulu Liu, Fu Yang, Wei Liu
Summary: Hydroxyapatite (HAP) has excellent adsorption ability for Fe(III) and can effectively hinder the migration of Fe(III) under certain conditions. The transformation efficiency of Fe(III) is significantly influenced by the initial pH value and reaction temperature, and the adsorption kinetics of Fe(III) on HAP follows a pseudo second order kinetic model.
Article
Materials Science, Textiles
Bin Tang, Xi Lu, Jinfeng Wang, Hao Yu, Yanchao Zhu, Steven E. Atkinson, Xungai Wang
Summary: The gas adsorption properties of key natural fibers, wool and cotton, were investigated through time-resolved infrared spectroscopy monitoring the adsorption process of ammonia. The Langmuir isotherm model best described the adsorption process, with monolayer adsorption onto the fibers. The study also found differences in adsorption capacity and activation energy values between wool and cotton.
JOURNAL OF THE TEXTILE INSTITUTE
(2021)
Article
Engineering, Chemical
Murali Pujari, P. Rohinikumar, Sudharshan Reddy Manyam, Adarsh Kumar Arya
Summary: The effectiveness of low-cost fly ash geopolymer adsorbents synthesized from biomass fly ash in lead removal from aqueous solution was studied. The results showed that the synthesized adsorbent had high removal efficiency and uptake, and could be applied under different operating conditions.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
M. A. Rahmatnia, A. Nouralishahi, M. Bahaeddini, A. Hallajisani
Summary: In this study, activated carbon derived from cedar wood was synthesized and optimized for the removal of Pb2+ ions from aqueous solutions. The adsorbent exhibited high adsorption capacity under the optimum conditions. The kinetics and thermodynamics of Pb2+ adsorption indicated that it was a spontaneous and exothermic process.