Article
Chemistry, Multidisciplinary
Helen K. Brown, Jamal El Haskouri, Maria D. Marcos, Jose Vicente Ros-Lis, Pedro Amoros, M. Angeles Ubeda Picot, Francisco Perez-Pla
Summary: This study reports on the synthesis of nine materials containing Cu, Ag, Au, and Ag/Cu nanoparticles deposited on magnetite particles coated with polydopamine. The materials were characterized using various techniques and their recyclability was evaluated. Catalysts prepared using soft reducing agents and/or thin polydopamine films showed the highest activity, while those reduced with NaBH4 remained stable for a longer time. The order of activity was Au>Ag>Cu, with Ag-based materials showing higher recyclability than Au-based materials.
Article
Chemistry, Applied
Edwin Prathibha, Rajmohan Rangasamy, Arunasalam Sridhar, Kannappan Lakshmi
Summary: An eco-friendly approach was reported for the synthesis of silica-coated magnetite material decorated with ultra-fine silver nanoparticles, as a magnetically recyclable catalyst for the detoxification of 4-nitrophenol. This synthetic strategy employed only ultrasound waves throughout the preparation of the catalyst material without adding any stabilizer. The catalyst was well characterized and showed great potential for the treatment of wastewater contaminated with 4-nitrophenol.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Environmental Sciences
Hebatullah H. Farghal, Marianne Nebsen, Mayyada M. H. El-Sayed
Summary: In this study, chitosan/xylan-coated magnetite (CsXM) nanoparticles were developed as eco-friendly efficient adsorbents for contaminant removal from water. The CsXM was successfully prepared with mesoporous structure, thermal stability, and neutral charge. Three representative pollutants, Pb(II), salicylic acid (SA), and congo red (CR), were effectively removed by CsXM, with Pb(II) and SA showing higher adsorption compared to CR. The adsorption followed the Freundlich isotherm model and the pseudo-second order kinetic model, and the binding mechanisms differed for different pollutants.
Article
Chemistry, Physical
Tarmizi Taher, Raden Putra, Neza Rahayu Palapa, Aldes Lesbani
Summary: The magnetite-nanoparticle-decorated NiFe LDH (MNPs@NiFe LDH) synthesized through coprecipitation and hydrothermal treatment exhibited high crystallinity and uniform distribution of magnetite nanoparticles on its surface. MNPs@NiFe LDH showed a higher adsorption capacity for congo red dye removal from aqueous solution (79.6 mg/g), with the adsorption mechanism being governed by ionic interactions between the positively charged LDH surface and negatively charged dye molecules.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Chun Wang, Lei Yang, Xiaofang Yuan, Wending Zhou, Meisong Xu, Wanliang Yang
Summary: In this study, novel silver nanoparticles supported on amino-functionalized peeled-watermelon-like silica-coated magnetic catalysts were successfully synthesized for the catalytic reduction of 4-nitrophenol in wastewater. The Fe3O4@SiO2-NH2-Ag catalyst exhibited excellent catalytic activity, easy recovery under an external magnetic field, and the ability to be reused for multiple cycles, making it a promising material for practical applications.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Green & Sustainable Science & Technology
Chun-Won Kang, Haradhan Kolya
Summary: The challenge of sustainable water supply in developing and third-world countries is addressed by nanomaterial-based technology, particularly through the eco-friendly synthesis of Ag-Au bimetallic nanocomposites for efficient degradation of organic dye molecules and nitroaromatics in water.
Article
Materials Science, Multidisciplinary
Ningthoujam Joseph Singh, Boris Wareppam, Anil Kumar, Konthoujam Priyananda Singh, V. K. Garg, A. C. Oliveira, L. Herojit Singh
Summary: Rational design of efficient material for dye removal is a promising technique for waste water management. In this study, the synergistic effect of zeolite and iron oxide composites was investigated by adding different amounts of zeolite during the nucleation of magnetite. The presence of goethite (alpha-FeOOH) in the composites at higher zeolite content was confirmed by XRD and Mossbauer spectroscopy. The mechanism of alpha-FeOOH nucleation and its contribution to congo red dye removal were highlighted. The removal percentage of congo red dye was found to be as high as approximately 99%. Additionally, the composites with zeolite exhibited higher efficiency in dye removal during the reusability test.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Aayushi Arora, Preeti Oswal, Siddhant Singh, Divyanshu Nautiyal, Gyandshwar K. Rao, Sushil Kumar, Ajai K. Singh, Arun Kumar
Summary: A novel selenoether ligand L1 was synthesized, and the first example of organoselenium compound stabilized copper nanoparticles with long term stability was reported. The Fe3O4@CS@L1-stabilized-CuNPs exhibited high efficiency and recyclability in the borohydride reduction reactions of various nitroarenes in water, with 99% conversions achieved in short reaction times. The catalyst also showed magnetic separability, robustness, and low activation energy.
INORGANICA CHIMICA ACTA
(2021)
Article
Polymer Science
Diana C. Sotelo, Nancy Ornelas-Soto, Johann F. Osma
Summary: In this study, five different magnetic biofilters were designed, manufactured and tested. The filter with laccase immobilized on magnetite, permanent magnets and metallic mesh showed the highest dye decolorization and the longest half-life among all types of filters.
Article
Chemistry, Inorganic & Nuclear
Nur Ahmad, Fitri Suryani Arsyad, Idha Royani, Tarmizi Taher, Aldes Lesbani, Patimah Mega Syah Bahar Nur Siregar
Summary: Preparation of NiAl, ZnAl, NiAl Magnetite Humic Acid (NiAl-MHA) and ZnAl Magnetite Humic Acid (ZnAl-MHA) was successful, and their characteristics were analyzed using FTIR, XRD, VSM, SEM-EDX, and BET analysis. The presence of Fe atom indicates the magnetic properties of NiAl-MHA and ZnAl-MHA, while the increase in %wt C atoms suggests the presence of humic acid. After 5 regeneration cycles, the adsorption percentages of congo red were 95.93% and 97.29% for NiAl-MHA and ZnAl-MHA, respectively. The effectiveness of NiAl-LDH and ZnAl-LDH decreased after 5 regeneration cycles, while the adsorption capacities of NiAl, ZnAl, NiAl-MHA, and ZnAl-MHA for congo red were 58.823 mg/g, 48.978 mg/g, 135.135 mg/g, and 178.571 mg/g, respectively.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
J. Chen, L. Liu, J. Huang, C. Sheng, L. Li
Summary: The composite adsorbent CS/PCL-b-PEG/SA@PDA showed a maximum adsorption capacity of 598.8 mg/g for Congo red dye and demonstrated good reusability. The adsorption mechanism involved strong electrostatic attraction between the -NH2 and -OH groups in the adsorbent and the -SO3- groups in the dye.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Applied
Rahma Mehdaoui, Soumaya Agren, Abdelwahab Dhahri, Jamal El Haskouri, Emmanuel Beyou, Mohammed Lahcini, Mohamed Hassen V. Baouab
Summary: Magnetic [FA-c-(C-DTX)@Fe3O4] nanocomposites were prepared with a novel environmentally friendly approach, showing successful magnetite coating process and excellent catalytic activity towards the reduction of the organic pollutant 4-nitrophenol.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Polymer Science
Yuan Zou, Huijie Liu, Xianheng Wang, Yuanting Xu, Ye Yang, Wanjie Bai, Yiwen Li
Summary: Click chemistry has been regarded as a powerful tool to construct and engineer complex macromolecular materials. In this study, thiol-Michael click chemistry was used to tune the energy structure and light harvesting behavior of melanin-like polymers, resulting in enhanced light absorption and photothermal effect. The study demonstrated the potential of click chemistries in regulating the functions of complex bioinspired macromolecules.
Article
Chemistry, Multidisciplinary
Sachin Sachin, Biplob Kumar Pramanik, Nahar Singh, Rumbidzai Zizhou, Shadi Houshyar, Ivan Cole, Hong Yin
Summary: ZnO nanoparticles have high efficiency in removing contaminants from water and doping with transitional metals can further enhance their adsorption performance. In this study, ZnO NPs doped with Co, Fe, and Mn were investigated. Co-doped ZnO showed the highest adsorption capacity due to its increased surface area and reduced agglomeration. The adsorption of Congo red on Co-doped ZnO followed the pseudo-second-order model and the Langmuir isotherm. Moreover, Co-doped ZnO was successfully incorporated into an alginate membrane, demonstrating excellent adsorption performance for wastewater purification.
Article
Chemistry, Physical
Murugavelu Marimuthu, Huanhuan Li, Quangsheng Chen
Summary: A facile ultrasonically driven Silver based bimetallic nanoparticles (BNPs) were synthesized in high yield by chemical reduction technique and showed excellent catalytic efficiency. The AgPd BNPs exhibited the highest catalytic efficiency, attributed to the synergistic effects of high surface area, porous and hollow structures.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Polymer Science
Suman Kumar Ghosh, Tushar Kanti Das, Sayan Ganguly, Krishnendu Nath, Sangit Paul, Debabrata Ganguly, Narayan Chandra Das
Summary: Clay-reinforced polymer composites have been improved by using the 'grafting to' silylation method to enhance their compatibility with thermoplastic polymers. The resulting nanocomposites showed improved performance properties, such as higher tensile strength and Young modulus, better filler dispersion, as well as reduced oxygen and water vapor transmission rates. These nanocomposites could be ideal alternatives for flexible thermoplastic composites as packaging materials.
Article
Materials Science, Composites
Ankur Katheria, Palash Das, Sangit Paul, Krishnendu Nath, Suman Kumar Ghosh, Narayan Ch Das
Summary: This study focused on the development of microwave-absorbing materials based on polymer blends composites to minimize radiation pollution at ultra-low filler concentrations. The use of conductive Vulcan XC 72 carbon black as a nanofiller in ethylene-co-methyl acrylate (EMA)/thermoplastic polyolefin (TPO) blend composites showed reduction in electrical percolation and improved electromagnetic interference (EMI) shielding performance. The conductive blend also exhibited superior physic-mechanical and thermal stability. The study concluded that these conductive polymer nanocomposites can be utilized as promising EMI shields in the future generation of stretchable and wearable electronics.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Tushar Kanti Das, Marcin Jesionek, Miroslawa Kepinska, Marian Nowak, Michalina Kotyczka-Moranska, Maciej Zubko, Jaroslaw Mlynczak, Krzysztof Kopczynski
Summary: In the past twenty years, there has been significant attention on the basic investigation of innovative Non-Linear Optical (NLO) crystals, which is crucial for the use of NLO materials. This study synthesized high-quality MFIR SbI3 center dot 3S(8) NLO crystals through a rapid liquid phase ultrasonic reaction and natural evaporation phenomenon. The results confirmed the crystal structure and measured the energy gaps of the crystals, showing potential for further investigations in the field of NLO crystals.
Article
Polymer Science
Palash Das, Ankur Katheria, Kinsuk Naskar, Narayan Ch Das
Summary: The demand for flexible electronics and portable gadgets has led to an increase in emitted EM radiation. Conductive carbon black (VCB XC 72) has been identified as an ideal material for flexible EMI shielding. A flexible and recyclable EMI shielding material was developed using a solution and melt mixing process, with zinc oxide cross-linking and VCB XC 72 nanofillers. The combined cross-linked XNBR and conductive black created a tunable shielding framework with improved EMI shielding.
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2023)
Article
Materials Science, Composites
Suman Kumar Ghosh, Krishnendu Nath, Soumya Sarathi Ganguly, Tushar Kanti Das, Sangit Paul, Trisita Ghosh, Amit Kumar Das, Narayan Ch. Das
Summary: This study investigates the application of polymer/graphene-based nanocomposite films in packaging, electronics, and pharmaceutical industries. The addition of graphene derivatives enhances the physico-mechanical properties, thermal conductivity, and barrier properties of the films, with antibacterial and electromagnetic interference shielding effects. These thermoplastic nanocomposite films with high thermal conductivity are an excellent choice for bacteria-resistant packaging and efficient thermal management EMI shields in electronics.
POLYMER COMPOSITES
(2023)
Review
Pharmacology & Pharmacy
Sayan Ganguly, Shlomo Margel
Summary: This review focuses on the recent developments and applications of multimodal fluorescent-magnetic nanoparticles in the field of biomedicine. These nanoparticles have the potential to be used as diagnostic and medication-delivery tools, making it easier to diagnose and treat cancer and other disorders. The article describes the latest advancements in synthetic methodologies and fabrication methods of magneto-fluorescent nanocomposites, and covers the primary applications of multimodal magneto-fluorescent nanoparticles in biomedicine, including biological imaging, cancer treatment, and drug administration. An overview of the future possibilities for these technologies is provided.
Review
Food Science & Technology
Tushar Kanti Das, Sayan Ganguly
Summary: The present review article explores the potential use of quantum dot-polymer nanocomposites in ensuring food safety. It discusses the development of nanocomposites and their unique optical and electrical characteristics, as well as their potential in detecting and perceiving food safety risks. The article examines different methods for producing nanocomposites and highlights their potential utility in identifying impurities, microorganisms, and harmful substances in food. It provides an overview of the challenges and limitations associated with their use in food safety applications, including concerns about toxicity and the need for standardized protocols. The review article comprehensively examines the current research status in this field and emphasizes the potential of quantum dot-polymer nanocomposites in transforming food safety monitoring and sensing.
Article
Engineering, Chemical
Sangit Paul, Manjur Rahaman, Suman Kumar Ghosh, Palash Das, Ankur Katheria, Trisita Ghosh, Narayan Chandra Das
Summary: The potential effect of pyrolytic carbon black (CBp) and pyrolytic heavy oil (HO) in styrene-butadiene rubber (SBR) was investigated. N330 CB showed better dispersion and higher tensile and tear strength compared to CBp. HO could replace commercially available AOs and improve the dispersion in the rubber matrix.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Multidisciplinary Sciences
Krystian Mistewicz, Tushar Kanti Das, Bartlomiej Nowacki, Albert Smalcerz, Hoe Joon Kim, Sugato Hajra, Marcin Godzierz, Olha Masiuchok
Summary: The nanorods of bismuth sulfoiodide (BiSI) with 1D structure were successfully synthesized at a low temperature of 393K through a wet chemical method. The size and composition of the nanorods were examined using HRTEM, SEM, EDS, and XRD. The BiSI nanorods showed potential for use in self-powered photodetectors and photo-chargeable capacitors, as demonstrated by the construction of two types of photodetectors and their performance measurements.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Manufacturing
Hossein Golzar, Yun Wu, Sayan Ganguly, Xiaowu (Shirley) Tang
Summary: In this study, hydrophilic and rapidly curing inks consisting of aminosilicone, cellulose nanocrystal, and methacrylate anhydride are developed for 3D printing of human articular cartilage. The inks possess suitable shear-thinning property and tunable mechanical strengths. Multilayered articular cartilage with different compressive moduli is successfully printed, and its endurance against compressions is assessed.
ADDITIVE MANUFACTURING
(2023)
Article
Engineering, Environmental
Suman Kumar Ghosh, Krishnendu Nath, Sreeja Nath Chowdhury, Sangit Paul, Trisita Ghosh, Ankur Katheria, Palash Das, Narayan Ch. Das
Summary: The use of conductive hybrid carbonaceous fillers for efficient electromagnetic interference (EMI) shielding materials is a popular research area. Lightweight thermoplastic elastomeric blend composite films were fabricated by solution mixing technique with hybrid carbonic nanofillers and co-continuous polystyrene/ethylene-co-methyl acrylate blend. The dispersion of hybrid carbonaceous inclusion was improved by combining acidfunctionalized multiwalled carbon nanotubes, carbon nanofibers, and conductive carbon black. The resulting blend composites showed enhanced electrical properties, thermal conductivity, and microwave shielding performance.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2023)
Article
Polymer Science
Ankur Katheria, Palash Das, Suman Kumar Ghosh, Jasomati Nayak, Krishnendu Nath, Sangit Paul, Shovan Biswas, Narayan Ch. Das
Summary: Polymer nanocomposites have gained significant interest for electromagnetic interference (EMI) shielding applications due to their lightweight, anticorrosive, and tunable properties. This study developed a composite material with reduced graphene oxide (RGO) as a conductive filler, achieving a low electrical percolation threshold and outstanding shielding effectiveness. The composite also exhibited promising thermal conductivity and mechanical properties, offering potential for thermal management and microwave shielding in EMI-sensitive applications.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Poushali Das, Sayan Ganguly, Andreas Rosenkranz, Bo Wang, Jinhong Yu, Seshasai Srinivasan, Amin Reza Rajabzadeh
Summary: MXenes are highly versatile materials that can compete with and outperform graphene in certain applications. The self-restacking issue can be addressed by hybridizing with low-dimensional nanostructures. This review highlights recent advancements and emerging applications in this field, as well as the challenges that need to be overcome.
MATERIALS TODAY NANO
(2023)
Article
Polymer Science
Krishnendu Nath, Suman Kumar Ghosh, Palash Das, Ankur Katheria, Narayan Chandra Das
Summary: This study presents a practical method for producing biodegradable electromagnetic interference (EMI) shield films made of thermoplastic polyurethane (TPU), polybutylene adipate-co-terephthalate (PBAT), and modified multi-walled carbon nanotubes (MWCNT). The distribution of nanoparticles in the polymer matrix was found to play a key role in determining the EMI shielding efficiency.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)