Article
Engineering, Chemical
Lijo Francis, Nidal Hilal
Summary: In this study, an electrohydrodynamic atomization or electrospraying technique was used to deposit carbon nanotubes (CNT) on a commercially available PTFE membrane for Membrane Distillation (MD) process. The modified PTFE-CNT membrane showed improved water contact angle, liquid entry pressure (LEP), and pore size distribution compared to the PTFE membrane. The functional PTFE-CNT membrane demonstrated superior desalination performance with less cake layer formation and high rejection of inorganic salts during continuous MD process operation.
Article
Engineering, Chemical
Sudesh Yadav, Ibrar Ibrar, Ali Altaee, Akshaya K. Samal, Elika Karbassiyazdi, John Zhou, Pietro Bartocci
Summary: This study focuses on enhancing the selectivity and permeability of two-dimensional graphene oxide (GO) membranes using one-dimensional carbon nanotubes (CNT) and polyvinyl alcohol (PVA). By intercalating CNT and cross-linking with GO and PVA, the separation performance of the membranes is significantly improved. The membranes exhibited high rejection rates and permeate rates after specific treatments and annealing. These membranes show great potential for practical water separation applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Electrochemistry
Marina Ramirez-Moreno, Abraham Esteve-Nunez, Juan Manuel Ortiz
Summary: A microbial desalination cell is a type of microbial fuel cell integrated with an electrodialysis cell for wastewater treatment, desalination, and energy production. This study explored brackish water desalination and energy production using ferricyanide as the catholyte, and found conductivity variation in the saline chamber can predict electrochemical performance.
ELECTROCHIMICA ACTA
(2021)
Review
Chemistry, Physical
Zhongkai Li, Klaus Mathwig, Omotayo A. Arotiba, Luthando Tshwenya, Evaldo Batista Carneiro Neto, Ernesto Chaves Pereira, Frank Marken
Summary: Ionic diodes have been widely studied in various systems including gel interfaces, nanopores and channels, and fluidic devices. The understanding of diode function and time constant is crucial for their applications. At frequencies higher than the diode time constant, the polarization mechanism is too slow, while at lower frequencies, irreversible ion flow induces the switching of the diode between two resistive states. This irreversible flow allows for energy conversion and can be used for AC-desalination and electroosmotic water harvesting.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
N. Salman Tabrizi, M. Salehi Taleghani
Summary: Hybrid aerogels containing carbon nanoparticles and multi-walled carbon nanotubes were synthesized via sol-gel method and freeze-drying followed by controlled carbonization. The aerogel sample exhibited high specific surface area, large pore volume, and excellent electric double-layer formation. It showed a large specific capacitance and cyclic stability in electrochemical tests, as well as a promising adsorption capacity in capacitive deionization process.
Article
Chemistry, Multidisciplinary
M. Ferreira, S. Guney, I. Kuzniarska-Biernacka, O. S. G. P. Soares, J. L. Figueiredo, M. F. R. Pereira, I. C. Neves, A. M. Fonseca, P. Parpot
Summary: The electrochemical oxidation of diclofenac was studied using various carbon nanotube modified electrodes, showing different conversion rates and mineralization efficiencies in different electrolyte media. The identification and quantification of electrolysis products confirmed the cleavage of aromatic rings during the oxidation process.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Tiantian Li, Qile Fang, Jianqiang Wang, Haibo Lin, Qiu Han, Peng Wang, Fu Liu
Summary: The study presents a heteromorphic arch-like evaporator with a versatile array configuration of PTFE hollow fibers decorated with CNT for efficient solar-to-steam conversion. The indoor evaporation rate of 2.15 kg m(-2) h(-1) and outdoor freshwater reclamation of 10-16 kg m(-2) per day can be achieved with multiple fiber staircase arrays using carbon cloth as the base under one sun illumination.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Jae Wook Lee, Byeongkyu Kim, Jung Yong Seo, Yong Seok Kim, Pil J. Yoo, Chan-Hwa Chung
Summary: In this study, a hybrid electrochemical system with three electrolyte chambers was constructed to reduce the energy required for water electrolysis. Through simultaneous operation of hydrogen and oxygen evolution reactions under different pH conditions, the theoretical voltage for water electrolysis was significantly decreased. This system offers a lower voltage for water electrolysis compared to conventional systems.
APPLIED SURFACE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Abdullah Al-Mamun
Summary: Microbial desalination cell (MDC) is an eco-friendly technology for treating sewage and seawater with bioelectricity recovery. This study optimized MDC performance by varying the external resistance (R-ext), achieving efficient removal of COD and salinity.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Electrochemistry
M. E. Suss, Y. Zhang, I Atlas, Y. Gendel, E. B. Ruck, V Presser
Summary: Energy-efficient technologies play a crucial role in water remediation and drinkable water generation. Electrochemical desalination technologies, particularly hydrogen-driven electrochemical water purification, have emerged as promising alternatives to established methods. This review article explores the concept of desalination fuel cells and capacitive-Faradaic fuel cells for ion separation.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Hossein Ataei Far, Amir Hessam Hassani, Lobat Taghavi, Mojtaba Fazeli, Abdollah Rashidi Mehrabadi
Summary: Based on the evaluation of samples taken from the Brackish Water Reverse Osmosis (BWRO) plant in Eshtehard, Iran, this study demonstrated the performance of bench-scale EDR in removing total dissolved solids (TDS) from brackish water. The results showed that temperature and voltage had significant influences on the efficiency of the EDR process. The successful reduction of TDS and electrical conductivity (EC) in the second stage brine suggests that the hybrid process of RO-EDR-RO could be the best choice for the development of the Eshtehard Desalination Plant.
Article
Engineering, Chemical
Umesh Ghimire, Mary K. Heili, Veera Gnaneswar Gude
Summary: This paper presents a dual-purpose Zinc vertical bar ferricyanide desalination battery for simultaneous desalination and energy storage operations. Experimental results confirm that the battery can achieve high desalination rates and be used for processing high salinity water.
Review
Engineering, Chemical
Seyed Mohammad Montazeri, Georgios Kolliopoulos
Summary: Desalination processes are essential for addressing the energy-water-environment nexus and water scarcity globally. Hydrate based desalination (HBD) is an innovative method that can efficiently desalinate various salinity streams and recover clean water in the form of gas hydrates. HBD shows strong potential as an energy efficient and selective desalination method, contributing to the overall sustainability of the energy-water-environment nexus.
Review
Materials Science, Multidisciplinary
Yuecheng Xiong, Jingwen Zhou, Pengyi Lu, Jinwen Yin, Yunhao Wang, Zhanxi Fan
Summary: Lithium has been considered crucial for modern energy infrastructures, but its production rate has not kept up with global demand. Electrochemical extraction of lithium from seawater has received attention as a viable solution to achieve a circular economy.
Article
Engineering, Chemical
Prashant Sharan, Sonal K. Thengane, Tae Jun Yoon, Jeremy C. Lewis, Rajinder Singh, Robert P. Currier, Alp Tugrul Findikoglu
Summary: This study investigates a novel process intensification approach by integrating supercritical water oxidation (SCWO) with supercritical water desalination (SCWD) for energy efficient treatment and desalination of produced water. The coupled SCWD-SCWO process is found to be more energy efficient and cost-effective compared to existing industry standard desalination technologies.
Article
Chemistry, Applied
J. Anita Lett, Solhe F. Alshahateet, Is Fatimah, Ramesh Poonchi Sivasankaran, Assefu Kassegn Sibhatu, Minh-Vien Le, Suresh Sagadevan
Summary: In this study, Mn3O4 nanoparticles were synthesized using the hydrothermal method and characterized for their morphology, surfaces, crystalline structure, and photocatalytic activity. The results confirmed the crystalline structure of Mn3O4 with a tetragonal phase and revealed a mixed rod-like morphology and rough surface spherical particles. The synthesized Mn3O4 nanoparticles showed photocatalytic activity towards methylene blue in water under natural solar irradiation for long periods of time, without the need for adjusting the pH or introducing an oxidant into the reaction mixture. This study suggests that the prepared Mn3O4 nanostructures have promising applications as photocatalysts for the degradation of organic dyes in aqueous media.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Applied
Ngoc-Diep Pham, Nguyen Hien Thao, Van Hoang Luan, Hoang Anh Hoang, Suresh Sagadevan, Manh-Thang Ngo, Nhung Nguyen Hong Duong, Minh-Vien Le
Summary: TiO2 and Ag-doped TiO2 photocatalysts were studied for their photocatalytic disinfection against Escherichia coli under artificial sunlight irradiation. The results showed that the presence of Ag narrowed the bandgap of TiO2 and shifted the absorption edge towards the visible region. 6 mol% Ag-doped TiO2 demonstrated strong antibacterial effectiveness against E. coli.
TOPICS IN CATALYSIS
(2023)
Review
Energy & Fuels
Wan Jefrey Basirun, Syed Tawab Shah, Md. Shalauddin, Shamima Akhter, Nazzatush Shimar Jamaludin, Adeeb Hayyan
Summary: The recycling of sodium borohydride is a major challenge for the hydrogen economy. Mechano-chemical, thermo-chemical, and electrochemical methods are reported for recycling sodium metaborate into sodium borohydride. Electrochemical behavior of borohydride and metaborate in alkaline solutions is described. Challenges, suggestions, and future outlook of electro-reduction for the recycling of metaborate into borohydride are highlighted.
Article
Chemistry, Inorganic & Nuclear
Suresh Sagadevan, Solhe F. Alshahateet, J. Anita Lett, Is Fatimah, Ramesh Poonchi Sivasankaran, Assefu Kassegn Sibhatu, Estelle Leonard, Minh-Vien Le, Tetsuo Soga
Summary: Silver (I) oxide (Ag2O) nanoparticles (NPs) were synthesized by solution reduction. The Ag2O NPs were characterized using XRD, FTIR, SEM, DRS, and DLS techniques. The results showed the structure, shape, energy gap, and functional group variations of Ag2O NPs. The synthesized Ag2O NPs exhibited a mean hydrodynamic diameter of 171 +/- 82.8 nm in water. The photocatalytic activity of Ag2O NPs towards the degradation of Methylene blue (MB) dye under solar light was tested, and a maximum removal efficiency of 91.5% in 70 min was achieved. The photodegradation data followed pseudo-first-order kinetics with a rate constant of 0.0319 min(-1) and a half-life time of 21.72 min.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
P. Koteeswari, Solhe F. F. Alshahateet, R. Santhakumari, Is Fatimah, Suresh Sagadevan
Summary: This article utilizes density functional theory (DFT) and computational procedures to study the molecular properties and crystal structure of L-cysteinium methanesulfonate (L-CMS). The calculations provide insight into the optimized structure, intermolecular interactions, electronic properties, and energy framework of the compound. The results show the presence of hydrogen bonding interactions and highlight the importance of different intermolecular forces in the packing of molecules.
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2023)
Article
Environmental Sciences
B. Murugan, U. Mahalingam, P. Ramasamy, S. Sahadevan
Summary: This study presents a novel and simple approach using cadmium sulfide nanoparticles (CdS) as a coupler to detect, degrade, and remove plastic pollutants. Biomass-sourced activated carbon is used to improve the adhesion power of the CdSNPs@BBFCO/AC nanocomposites, which exhibit excellent adsorption and catalytic properties. The synthesized nanocomposites are able to detect and degrade various types of plastic samples, showing great potential for plastic pollutant detection, degradation, and removal processes.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
S. Mahalakshmi, Jeyanthinath Mayandi, Suresh Sagadevan, V Ragavendran, K. Manikandan, S. Arumugam, J. M. Pearce, Vishnukanthan Venkatachalapathy
Summary: This study synthesizes barium titanate (BaTiO3) nanoparticles using a low-cost sol-gel hydrothermal method at different temperatures and investigates their second harmonic generation (SHG) effects. The crystal structure of BaTiO3 changes from simple cubic to rhombohedral, resulting in structural distortion and phase transition. The variation in particle size and magnetic properties leads to an improved SHG conversion efficiency. This technique shows promise for fabricating bio-compatible imaging probes and coherent bio-markers in medicine and electronics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
Suresh Sagadevan, Ramesh Poonchi Sivasankaran, J. Anita Lett, Is Fatimah, Getu Kassegn Weldegebrieal, Estelle Leonard, Minh-Vien Le, Tetsuo Soga
Summary: The synthesis and characterization of hematite (& alpha;-Fe2O3) nanoparticles (NPs) were conducted, and their photocatalytic properties were studied. The α-Fe2O3 NPs were found to have a rhombohedral phase confirmed by XRD, and FT-IR was used to analyze functional groups on the catalyst surface. The bandgap energy was determined to be 2.25 eV using UV-Vis DRS, and SEM images showed a spherical morphology. The α-Fe2O3 NPs exhibited oxidation and reduction properties as analyzed by CV. Under natural sunlight, the degradation efficiency of methylene blue (MB) dye using the α-Fe2O3 NPs reached 33% in 2 hours, with a pseudo-first-order rate constant of 0.0033 min(-1).
Review
Chemistry, Physical
Samira Bagheri, Nurhidayatullaili Muhd Julkapli, Mohd Rashid Yusof Hamid, Rojin Ziaei, Suresh Sagadevan
Summary: Photocatalysis can be used as an effective method for deactivating and degrading SARS-CoV-2 by generating reactive oxidative species (ROS) and inhibiting cell development. This review discusses the different photocatalytic systems and experimental parameters for efficient virus inactivation.
Article
Physics, Applied
A. Perepeliuc, R. Gujrati, A. Srivastava, P. Vuong, V. Ottapilakkal, P. L. Voss, S. Sundaram, J. P. Salvestrini, A. Ougazzaden
Summary: Hexagonal boron nitride exhibits persistent photoconductivity after UV illumination, which is not affected by temperature or pressure. The effect can last for months at room temperature and even after heating up to 300°C. Increased conductivity of up to six orders of magnitude has been observed in the devices, with time constants up to 4600 days. Irradiation after saturation reduces the decay rate significantly. Magnesium-doped h-BN diodes have been used to determine the type of conductivity, with both n- and p-type durable photoinduced carriers observed depending on the wavelength of illumination. These findings are important for improving UVC LEDs.
APPLIED PHYSICS LETTERS
(2023)
Review
Chemistry, Inorganic & Nuclear
Thavasilingam Nagendraraj, Sakthivel Vishnu Priya, Jamespandi Annaraj, Suresh Sagadevan
Summary: The primary biothiols, cysteine (Cys), glutathione (GSH), and homocysteine (Hcy), have crucial roles in various biological processes. Fluctuations in redox balance can lead to diseases due to disruptions in perfectly regulated intracellular and extracellular microenvironments. A study was conducted to develop copper-based fluorescence probes for detecting extracellular and intracellular targets such as cysteine (Cys) and glutathione (GSH) respectively. The fluorescence of the probes coordinated with Cu2+ is quenched by the binding of either Cys or GSH, resulting in retained Cu2+ ions.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Crystallography
Siti Nurnadiah Mohd Aris, Zaidatul Hanis Azmi, Suresh Sagadevan, Shamsu Abubakar, Rikson Siburian, Suriati Paiman
Summary: In this study, ZnO nanowires were successfully grown via CBD method, and the influence of HMTA on their formation was investigated. The results showed that the structure and dimensions of ZnO nanowires can be controlled by adjusting the concentration of HMTA.
CRYSTAL RESEARCH AND TECHNOLOGY
(2023)
Review
Pharmacology & Pharmacy
Sunita Patil, Chandrasekaran Rajkuberan, Suresh Sagadevan
Summary: New types of materials such as carbon nanomaterials, polymers, micelles, and liposomes have gained global recognition as carrier vehicles for targeted delivery of drugs, biomolecules, and chemicals to specific cells. Among these materials, Graphene Oxide (GO) stands out as a two-dimensional material that can be easily modified to carry DNA/RNA, proteins, genes, drugs, ligands, and hormones. GO shows high efficacy and efficiency in delivering drugs to cells. This research highlights the latest advances in using GO for sustainable drug delivery in disease management, providing valuable insights for researchers and scientists working on graphene-based materials for infectious and noninfectious disease treatments.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Review
Pharmacology & Pharmacy
Varsha Tiwari, Abhishek Tiwari, Ajay Sharma, Manish Kumar, Deepak Kaushik, Suresh Sagadevan
Summary: Alzheimer's disease causes neurodegenerative effects on mental ability, dementia, and behavioral changes, which can be observed years before symptoms appear. The lack of validated biomarkers presents a challenge for early diagnosis and management. However, advancements in nanotechnology offer potential solutions through inexpensive screening and targeted drug delivery using nanoparticles. These nanoparticles can efficiently cross the blood-brain barrier, and their improved characteristics make them useful for early diagnosis. This review provides comprehensive information on AD and its management, with a focus on nanotechnology advancements and various nanomedicine strategies.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
V. Ramasamy, E. Thenpandiyan, G. Suresh, T. Sathishpriya, Suresh Sagadevan
Summary: The nano CaCO3 and Eu3+ doped CaCO3/PEG nanocomposites were prepared through the biomimetic method. The prepared products were characterized and the electrochemical performance was evaluated. The results showed that the Eu3+ doped CaCO3/PEG nanocomposite exhibited superior pseudocapacitive behavior and could be used as an electrode material for supercapacitor applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)