Article
Biochemistry & Molecular Biology
Javed Alam, Arun Kumar Shukla, Lawrence Arockiasamy, Mansour Alhoshan
Summary: This study focuses on synthesizing and characterizing dual-layer sulfonated polyphenylenesulfone nanocomposite hollow fiber nanofiltration membranes with titanium dioxide nanoparticles. Advanced tools and methods were used to evaluate the properties and performance of the membranes. The addition of TiO2 significantly improved the pure water permeability, mechanical properties, and salt rejection performance of the membranes.
Article
Chemistry, Multidisciplinary
Ali Behboudi, Toraj Mohammadi, Mathias Ulbricht
Summary: Surface-modified silver nanoparticles with different functional groups were synthesized and used as functional fillers in nanocomposite membranes for membrane bioreactors (MBRs). The modifications successfully immobilized the nanoparticles inside the membrane, reducing silver release. The modified nanoparticles exhibited enhanced antimicrobial activity and improved the antifouling properties of the membranes. This led to significant improvements in MBR performance, with increased flux, COD removal, and flux recovery.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Chemical
Peng Ge, Zhen Lin, Jiarui Yang, Chuan Hu, Qinglin Liu, Qiugen Zhang
Summary: This article presents a facile strategy to fabricate polyethylenimine-grafted polyethersulfone hollow fiber membranes (PSF-PEI HFMs) for efficient dye separation. Unlike traditional interfacial polymerization, these HFMs were directly prepared via quaternization of PEI with brominated polyethersulfone UF HFMs. The PSF-PEI HFMs exhibit ultra-high water permeance and outstanding rejection for dyes, while maintaining low rejections for inorganic salts. Additionally, they show excellent stability and antifouling abilities, making them highly promising for industrial applications in fast dye separation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Muhammad Hafizuddin Hazaraimi, Pei Sean Goh, Mahesan Naidu Subramaniam, Mukeshkumar Pandiyan, Nur Diyana Suzaimi, Woei Jye Lau, Ahmad Fauzi Ismail
Summary: The photocatalytic dual-layer hollow fiber membrane demonstrates better dispersion of photocatalysts for maximizing their potential, while the PVDF dual-layer membrane with Ag-TNT incorporation shows effective performance in water treatment, exhibiting high efficiency in biological fouling resistance and pigment degradation through photocatalysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Mithun Kumar, Arun M. Isloor, Somasekhara Rao Todeti, Ahmad Fauzi Ismail, Ramin Farnood
Summary: Hollow fiber ultrafiltration membranes were fabricated by incorporating intensified dosages of nano-aluminum oxide into cellulose acetate/polysulfone and cellulose acetate phthalate/polysulfone using the NIPS process. The topological structures and morphologies of the membranes were investigated using AFM and SEM, while the crystalline and morphological structures of the nano-Al2O3 were studied using XRD and TEM. FTIR and XPS analyses were carried out to validate the dosages of nano-Al2O3, CA, and CAP on the PPSU membranes. The antifouling analysis of the membranes was performed using BSA as a standard protein solution.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Polymer Science
Lei Bian, Qianqian Wei, Jianxin Li, Jing Zhang, Shuhao Qin, Jingkui Yang, Zhenyu Cui
Summary: In this study, hollow fiber composite membranes with hybrid structures were prepared using the combination of anionic crosslinking and in-situ biomineralization. The compactness and filtration accuracy of the separation layers were effectively enhanced, and the hydrophilicity of the membrane surface was greatly improved. The membrane showed excellent chemical stability, long-term separation stability, and anti-fouling capacity. This study provides a facile method for building separation layers with hybrid structures on hollow fiber membranes and a novel idea for designing hollow fiber composite membranes to separate dyes from water.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Engineering, Chemical
Ali Behboudi, Toraj Mohammadi, Mathias Ulbricht
Summary: This study prepared forward osmosis hollow-fiber membranes with in situ assembly of polyethyleneimine and surface-modified silver nanoparticles. These membranes exhibited excellent separation performance in an osmotic membrane bioreactor and reduced fouling by wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Mithun Kumar, Arun M. Isloor, Somasekhara Rao Todeti, H. S. Nagaraja, Ahmad Fauzi Ismail, Rini Susanti
Summary: Arsenic contamination poses a continuous threat to drinking water safety worldwide, highlighting the importance of developing novel materials for selective arsenic removal. Experimental results demonstrate that membranes containing ZnO-MgO significantly enhance arsenic removal performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Muhamad Zulhilmi Zailani, Ahmad Fauzi Ismail, Pei Sean Goh, Siti Hamimah Sheikh Abdul Kadir, Mohd Hafiz Dzarfan Othman, Hasrinah Hasbullah, Mohd Sohaimi Abdullah, Be Cheer Ng, Fatmawati Kamal, Ruslinda Mustafar
Summary: In this study, immobilizing chitosan nanoparticles on polysulfone membranes improved transport properties and uremic toxins removal capabilities. Spinning conditions were found to play a critical role in dictating the properties of the nanocomposite hollow fiber membrane.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Laila Rameesha, Dipak Rana, Alagumalai Nagendran
Summary: The zinc-based metal-organic frameworks (MOFs) MOF-5 and Ag@MOF-5 were synthesized via a solvothermal method and used to fabricate hybrid ultrafiltration (UF) membranes with poly (vinylidenefluoride) (PVDF) for water treatment applications. The characterization of MOF-5 and Ag@MOF-5 confirmed their successful production and high crystallinity through ATR-FTIR, XRD, and SEM analysis. The PVDF/Ag@MOF-0.5 hybrid membrane showed superior performance in permeation, fouling properties, hydrophilicity, rejection, flux recovery ratio (FRR), and antibacterial properties compared to bare PVDF and PVDF/MOF-5 membranes. These findings suggest the potential of the PVDF/Ag@MOF-0.5 hybrid membrane for water and wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Sam B. Rutten, Moritz A. Junker, Lucia Hernandez Leal, Wiebe M. de Vos, Rob G. H. Lammertink, Joris de Grooth
Summary: Nanofiltration (NF) is a promising technology for treating water sources with increasing micropollutant (MP) concentrations. Understanding the influence of solution composition on filtration performance is important. This study investigated the impact of dominant salts on the removal of trace MPs by commercial hollow fiber NF membranes. The presence of a dominant salt significantly altered MP transport behavior, with a higher mobility of MPs observed in the dNF80 membrane.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Applied
Hongbin Li, Tengfei Li, Wenying Shi, Yin Tian, Jie Liu, Xiaohong Qin
Summary: By embedding PPTA/PSF microparticles into the PA composite layer of PSF hollow fiber membrane, the dye adsorption properties of the membrane were improved. The PPTA-embedded HFC membrane showed enhanced surface roughness, hydrophilicity, and electronegativity, resulting in increased dye adsorption capacity. These prepared PPTA-embedded hollow fiber composite membranes could potentially be used for treating textile dyeing wastewater.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Polymer Science
Rodholfo da Silva Barbosa Ferreira, Rafael Agra Dias, Edcleide Maria Araujo, Sandriely Sonaly Lima Oliveira, Vanessa da Nobrega Medeiros, Helio de Lucena Lira
Summary: Wastewater treatment and saltwater desalination are effective ways to address water scarcity. This research focuses on the development of polysulfone hollow fiber membranes combined with attapulgite clay for effluents treatment. The addition of attapulgite clay reduces the viscosity of the solutions, resulting in improved membrane morphology and flow. Membranes with higher clay contents show excellent performance in turbidity reduction and oil rejection.
Article
Materials Science, Ceramics
Yabin Zhang, Haibei Tan, Chunfang Wang, Bowen Li, Hao Yang, Haitao Hou, Changfa Xiao
Summary: A TiO2-coated glass hollow fiber membrane was successfully synthesized and its photocatalytic removal of methylene blue from wastewater was investigated. The results showed that the membrane had good photocatalytic and antifouling properties, significantly improving the removal of methylene blue compared to the basement membrane. The membrane could be recycled multiple times with a high removal degree of methylene blue.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Environmental
Nur Shazwani Abdul Mubarak, T. W. Chuan, H. P. Khor, Ali H. Jawad, L. D. Wilson, S. Sabar
Summary: The study successfully fabricated Fe-loaded chitosan film immobilized onto a glass support, demonstrating a greater adsorption capacity for methyl orange and excellent thermodynamic properties. The immobilized Fe-CS film showed promising potential for the removal of MO dye and similar pollutants due to its easy recovery and recyclability.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Umesh Fegade, Ganesh Jethave, Sanjay Attarde, Sachin Kolate, Inamuddin, Tariq Altalhi, Suvardhan Kanchi
Summary: Pb(II) doped zinc oxide nanoparticles (Pb-ZnONPs) were synthesized and used as an adsorbent for removing Erichrome Black T (EBT) from wastewater. The adsorption of EBT onto Pb-ZnONPs followed pseudo-second-order kinetics model, indicating chemisorption. Pb-ZnONPs exhibited a higher adsorption potential for EBT compared to other adsorbents. The adsorption process was described by a multi-layer process based on freundlich regression coefficient.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
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, Physical
Sharmin Sultana, Malik Abdul Rub, Marzia Rahman, Shahed Rana, Mohammad Majibur Rahman, Md Anamul Hoque, Yousef G. Alghamdi, Abdullah M. Asiri
Summary: In this study, the aggregation behaviors of PVA and TTAB in alcohols/diols media were investigated using conductivity measurements. The physico-chemical parameters and thermodynamic properties were determined. The results showed that the CMC values varied in different solvents, indicating the significant influence of solvents on the micelle formation of TTAB + PVA mixture. It was also found that PVA molecules interacted exclusively with TTAB through hydrogen bonding, ion-dipole, and hydrophobic interactions.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Nilima Patil, R. B. Dhake, Umesh Fegade, Kannan Gokulakrishnan, Chennan Ramalingan, Inamuddin, Tariq Altalhi, Suvardhan Kanchi
Summary: A novel Schiff base, S1, was synthesized and found to exhibit fair selectivity and sensitivity towards Ni2+. It showed no significant interference from co-existing cations and anions. The complexation ratio of S1 and Ni2+ was confirmed as 1:1, and the binding constant (Kb) was calculated. A paper test strip kit using S1 was successfully designed for the recovery of Ni2+ from real water samples in the environmental monitoring assessment laboratory.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Md. Anamul Hoque, Shamim Mahbub, Md. Tuhinur R. Joy, Malik Abdul Rub, Shahed Rana, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri, Mohammed Abdullah Khan
Summary: The micellization behavior of CTAB and BSA mixture in different diols media was studied. The critical micelle concentration (cmc) values of the mixture decreased with increasing temperature and followed the order: cmc(1,5-PD)>cmc(1,2-PrD)>cmc(2,3-BD). The degree of micelle ionization (a) increased with carbon chain length and temperature. The thermodynamic parameters and the contribution of the solvent were also evaluated.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Chemistry, Organic
Mohammad Asad, Muhammad Nadeem Arshad, Abdullah M. Asiri, Mohammed T. N. Musthafa, Salman A. Khan, Mohd Rehan, Mohammad Oves
Summary: A series of novel N-methylspiropyrrolidine hybrids were synthesized using 1,3-dipolar cycloaddition reaction, and their structures, antibacterial activity, and mechanism of action were investigated.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Polymer Science
Mohammad Asad, Muhammad Nadeem Arshad, Abdullah M. Asiri, Mohammed M. Rahman, Snigdha Kumaran, Mohammed Musthafa Thorakkattil Neerankuzhiyil
Summary: Chitosan-bounded copper (chitosan-Cu) was utilized for the green synthesis of novel ferrocenated spiropyrrolidine hybrids. A one-pot three-component 1,3-dipolar cycloaddition reaction using tyrosine, glycine, and isatin derivatives was employed to form spiropyrrolidines from 1-(4-bromophenyl)-ferrocene-prop-2-en-1-one and azomethine ylides. The synthesized spiropyrrolidines showed good antibacterial activity against Gram-positive and Gram-negative bacterial strains.
Review
Polymer Science
Guravtar Singh Mann, Naved Azum, Anish Khan, Malik Abdul Rub, Md Imtaiyaz Hassan, Kisa Fatima, Abdullah M. Asiri
Summary: Global climate change has already caused various environmental effects and led to a shift in focus towards sustainable materials. Green composites, which combine renewable fibers with polymers, offer a wide range of applications and superior features compared to conventional materials.
Article
Chemistry, Analytical
Sulaiman Y. Alfaifi, Waheed Abiodun Adeosun, Abdullah M. Asiri, Mohammed M. Rahman
Summary: This study proposed the use of doped Co3O4-ZnO nanorod materials for the detection of aspartic acid using differential pulse voltammetry. The synthesized composite exhibited excellent properties for the detection of aspartic acid, including low limit of detection, high sensitivity, and wide linear range. The developed sensor based on Co3O4-ZnO nanorod material showed repeatable and stable current response for aspartic acid, with no interference from other electroactive compounds.
Article
Chemistry, Physical
Mohammad Asad, Muhammad Nadeem Arshad, Abdullah M. Asiri, Hadi M. Marwani, Khalid A. Alamry, Mohammad Mahboob Alam, Syed Nazreen, Ahmed A. Elhenawy, Mohammed M. Rahman
Summary: N-Acylated-2-pyrazolines (NA2Pyr) were synthesized using chalcone and hydrazine hydrate, and their structures were determined. A metal ion sensor for lead (Pb2+) was developed by combining a conducting coating binder (PEDOT:PSS) with a NA2Pyr modified electrode (NA2Pyr/GCE). The sensor exhibited high sensitivity and a wide linear dynamic range.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Chemistry, Multidisciplinary
Umer Shahzad, Hadi M. Marwani, Mohsin Saeed, Abdullah M. Asiri, Mohammed M. Rahman
Summary: Due to their unique two-dimensional layered microstructure, MXenes are considered promising candidates for addressing energy and environmental issues, thanks to their numerous functionalities on the surface and excellent electrical, thermal, and optical features. Altering the dimensions, structure, surface chemistry, and chemical composition of MXenes can enhance their energy conversion and storage capabilities. Therefore, it is crucial to understand the relationship between structure and property from an applied perspective. This study reviews the synthesis, properties, and potential applications of MXenes and discusses their structural, chemical, optical, mechanical, and thermal properties, as well as their applications in photocatalysis, gas sensing, supercapacitors, electrocatalysis, and environmental remediation. It also highlights the progress and future prospects of MXene-based composites, providing valuable insights for scientists in academia and material sciences.
Article
Polymer Science
Khasan S. Karimov, Muhammad Tariq Saeed Chani, Noshin Fatima, Abdullah M. Asiri, Mohammed M. Rahman
Summary: Optimized surface-type impedimetric and capacitive proximity sensors have been fabricated on paper substrates using rubbing-in technology. These sensors can detect objects by sensing changes in impedance and/or capacitance when the object approaches, and they can be widely used in various fields due to their low cost, easy fabrication, and environmentally friendly materials.
Review
Chemistry, Multidisciplinary
Hafsah A. Klfout, Abdullah M. Asiri, Khalid A. Alamry, Mahmoud A. Hussein
Summary: Polybenzoxazine (PBz) is an excellent resin with diverse applications. The peculiar properties of benzoxazines have attracted the attention of researchers worldwide. However, petroleum-based benzoxazines are facing environmental concerns, leading to the research and development of bio-based alternatives. Bio-based polybenzoxazine, epoxy, and polysiloxane-based resins have gained interest in recent years due to their anticorrosion, eco-friendly, affordable, and low water absorption properties. This review provides an overview of polybenzoxazine, focusing on the advances in synthesizing bio-based polybenzoxazine, their properties, and their use in coating applications.
Article
Chemistry, Multidisciplinary
Mohammad Mahboob Alam, Serag Eldin I. Elbehairi, Ali A. Shati, Rania A. Hussien, Mohammad Y. Alfaifi, Azizah M. Malebari, Mohammad Asad, Ahmed A. Elhenawy, Abdullah M. Asiri, Ali M. Mahzari, Reem F. Alshehri, Syed Nazreen
Summary: Synthetic modification of eugenol, a natural anticancer agent, resulted in the production of new 1,3,4-oxadiazole analogues as inhibitors of thymidylate synthase. Compound 9 and 17 showed promising cytotoxicity against breast cancer and prostate cancer cells, without any side effects.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Mathkar A. Alharthi, Mohammad Luqman, Nimra Shakeel, Mohd Imran Ahamed, Inamuddin
Summary: In this study, Au@rGO/PIn nanocomposite was successfully synthesized using an eco-friendly method and found to have good electrochemical efficiency in glucose oxidation reactions. Through the analysis of the physical characteristics and electrochemical behavior of the modified bioanodes, it was discovered that a maximum current output was achieved at a glucose concentration of 50 mM. These materials are cost-effective, easy to use, and environmentally friendly, making them suitable for applications such as enzymatic biofuel cells.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2023)