Prefacedoi: 10.1088/1742-6596/2886/1/011001pmid: N/A
We are excited to present the proceedings of the National Conference on Nanomaterials – 2024 (NCN-2024), organized by the Department of Physics from July 11-12, 2024 at L.R.G. Government Arts College for Women, Tirupur. This event brought together a diverse group of experts, and we are immensely grateful to the authors, speakers, and reviewers who contributed their time and expertise to making this conference a reality.The research papers showcased in this proceeding cover a wide range of topics, including nanomaterial synthesis, characterization methods, nanoelectronics, nanocomposites, and applications in fields such as energy and healthcare. These contributions, collected from experts across the nation, highlight the rapid advancements in nanotechnology and its transformative potential.We would like to take a moment to honour and appreciate the contributions of our esteemed colleagues, whose dedication and passion have played a pivotal role in the success of this conference. We extend our heartfelt thanks to all faculty members, researchers, and collaborators who played a crucial role in this journey.Our sincere gratitude goes to SERB (Science and Engineering Research Board) and CSIR (Council of Scientific & Industrial Research), India, for their generous sponsorship, which made this conference possible. We are also deeply appreciative of our institution, L.R.G. Government Arts College for Women, Tirupur, for its steadfast support in organizing the event. The contributions from our sponsors and partners were crucial in providing the resources needed to deliver an impactful and enriching conference.List of National Advisory Committee and Organizing Committee are available in this Pdf.
Green synthesis of AgO nanoparticles using Prosopis Cineraria bark extract and its antibacterial activityKalaivani, P.; Mathubala, G.
doi: 10.1088/1742-6596/2886/1/012001pmid: N/A
The green synthesis of AgO nanoparticles (NP) uses plant elements like terpenoids, polyphenols, carbohydrates, enzymes, flavonoids, lipids, and alkaloids as reducing agents. A biodegradable technique produces silver oxide nanoparticles from Prosopis cineraria bark extract. This paper defines a biologically friendly, simple, cost-free, and predictable production of AgO nanoparticles (NP) from Prosopis cineraria aqueous bark extract, as well as their antibacterial efficacy. Silver oxide nanoparticles (NP) were green-produced with a bark extract of Prosopis cineraria, acting as a cap and reducing agent. The XRD study revealed that the AgO NP was in a face-centered crystal structure with a mean crystal size of 69.95 nm. The colour variations were used to detect the silver oxide nanoparticle forms in the extracts, and the successful manufacture of the AgO NP was validated using ultraviolet-visible spectrophotometry, which captured the SPR peak at approximately 601 nm. AgO NP was studied using an SEM to analyse the nanoparticles’ square shape and size. The antibacterial activities of the green synthesis of AgO NP were verified against gram-positive microorganisms like S. aureus, E. faecalis, and S. pneumoniae, and gram-negative microorganisms like E. coli, P. mirabilis, and P. aeruginosa, and the inhibition zones were found. Finally, the AgO NP produced by Prosopis cineraria bark extract is a valuable source of bioactive natural compounds. AgO NP demonstrated our antibacterial properties, which can be employed in future studies using a variety of biological approaches.
Peer Review Statementdoi: 10.1088/1742-6596/2886/1/011002pmid: N/A
All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.1. Type of peer review: Single anonymous2. Conference submission management system: Morressier3. Number of submissions received: 174. Number of submissions sent for review: 145. Number of submissions accepted: 116. Acceptance Rate (Submissions Accepted / Submissions Received × 100): 64.7 %7. Average number of reviews per paper: 1.008. Total number of reviewers involved: 119. Contact person for queries:Name: Dr. A. Kingson Solomon JeevarajAffiliation: LRG Government Arts College for women, Tirupur, Tamilnadu State, IndiaEmail: [email protected]
Investigation of the Dielectric Characteristics of Chromium-substituted Zinc and Cobalt Nanoferrite SystemsLakshmi, M.; Sreelalitha, K.; Sarah, P.; Samba Sivaiah, B; Naveen, D.
doi: 10.1088/1742-6596/2886/1/012011pmid: N/A
The series of Cr-substituted Zn and Co nanoferrite systems having the chemical composition CrxZnFe2–xO4 and CrxCoFe2–xO4 (0.0 ≤ x ≤0.5) were prepared by sol–gel technique. The present investigation aims to compare the impact of Cr3+ concentration on dielectric characteristics of Zn and Co-nanoferrite systems. The investigation of various dielectric characteristics was conducted using an LCR meter at 1kHz frequency and across the frequency range of 100Hz to 1MHz. The measurements were conducted at room temperature. In the case of both ferrite systems, the plots of frequency Vs dielectric constant (ε′) and AC conductivity (σac) show a common dielectric behavior of spinel ferrites. The plots of frequency Vs dissipation factor (D) of Cr- Cr-substituted zinc and Cobalt nanoferrite samples were observed to be unusual and display a relaxation peak at a particular frequency. In the current study, CrxZnFe2-xO4(x=0.2 and 0.3) and CrxCoFe2–xO4 (x=0.3) ferrite samples were found to exhibit very high values of dielectric constant. So these ferrites may be useful for a wide range of applications in electrical storage devices. According to LCR reports, all the Cr3+ substituted ferrite samples in both ferrite systems exhibit higher dielectric constant and AC conductivity values. Possible mechanisms that may be accountable for the outcomes are thoroughly scrutinized in this paper.
A study on the structural behaviour of Self Sensing Concrete using Nanomaterial as FillersFreeda Christy, C.; Aruna Jeyanthi, P.; Dhivyalakshmi, G.; Darling Helen Lydia, D.
doi: 10.1088/1742-6596/2886/1/012005pmid: N/A
Concrete technology has recently advanced to the point that different sensors can be used to measure a building’s mechanical attributes, including stress, amount of crack formation, deflection, and in various applications across Civil engineering disciplines. This can be achieved by various techniques or methods to measure the stress and strain of concrete in real-time. One of the methods is self-sensing concrete. To measure the self-sensing characteristics, concrete should be prepared with materials that possess sensing properties. Fibers (Carbon fibers, Steel fibers etc.,) and nanoparticles (nano nickel powder, carbon black powder, graphene powder etc.) are the main sources in the preparation of sensing concrete. This paper reviews the study on various self-sensing materials and methods that can be adopted and the study on the piezoresistive characteristics of concrete. The carbon and steel fiber-based self-sensing concrete were examined for compressive, tensile, and flexural strength as well as the electrical resistivity of the concrete was discussed in this paper.
Green Synthesis, Characterization, and Catalytic Applications of CuO Nanoparticles Using Prosopis Cineraria Seed ExtractKalaivani, P.; Mathubala, G.
doi: 10.1088/1742-6596/2886/1/012002pmid: N/A
The current study used a seed extract of Prosopis cineraria as a stabilizing and reducing agent to produce CuO nanoparticles via an easy, low-cost, affordable, and environmentally friendly synthesis process. The formation of copper oxide nanoparticles and the maximum absorbance of the CuO nanoparticles produced in the solution at 565 nm were verified by UV-vis. Copper oxide nanoparticles were found to have secondary metabolites on their surface, as shown by a distinctive Cu-O stretching band at 532 cm−1, which confirmed the reduced Cu2+ ions in copper oxide nanoparticles. This was confirmed by FTIR analysis. The XRD analysis confirmed the produced copper oxide nanoparticles’ monoclinic crystalline nanostructure with an average particle size of 34 nm. The phytonutrients in Prosopis cineraria seed extract stabilized and reduced copper, as demonstrated by the existence of copper and oxygen atoms at 85.2% and 12.5%, respectively, as demonstrated by SEM-EDX analysis. According to the HR-TEM study, copper oxide nanoparticles with a mean size of 18 nm are spherical in shape and well distributed. Prosopis cineraria seed extract-derived copper oxide nanoparticles were utilized as a catalyst in the Ullmann process to produce diphenyl ether. CuO nanoparticles produced by Prosopis cineraria seed extraction as a catalyst yielded 91% diphenyl ether. The results showed that a more ecologically friendly way of synthesizing copper oxide nanoparticles with great homogeneity of particle sizes could be achieved using seed extract. This work aims to facilitate heterogeneous catalysis from CuO nanoparticles utilising Prosopis cineraria seed extract. Overall, this technique offers several advantages, like high yields at fast reaction times, and low catalyst loading are just a few of this approach’s many benefits.
Thermal and Dielectric Properties of EuF3: Gd @ TryptophanMahajan, Manoj P.; Khandpekar, M. M.; Pawanoji, Aniket A.
doi: 10.1088/1742-6596/2886/1/012008pmid: N/A
EuF3: Gd @ tryptophan was synthesized via aqueous solution route at room temperature. The XRD studies shows hexagonal phase of synthesized nanoparticles with lattice parameters a = b = 6.966 (A°), c = 7.322 (A°). The lattice parameter values are in good agreement with (JCPDS card no 32-0373). The particle size of nanoparticles was calculated using Debye-Scherer formula and it is found to be 73.54 nm. Nanoparticles has flake like morphology having size of the order of 56 nm – 71 nm with nanoparticles has average size of 13 nm. The TEM image shows globular aggregates with assorted size were also seen with diameter 56 nm – 71 nm from which the flower like star structures originates. The TGA/DTA analyses of synthesized sample were studied up to 1500°C at heating rate of 0.01°C – 100°C/min. The variation in dielectric constant ε′, dielectric loss ε″ and tangent loss (tan δ) with frequency (100 Hz – 5 MHz) was studied at room temperature. The dielectric constant and dielectric loss are found to decrease exponentially with frequency. The low value of dielectric loss at higher frequencies indicates its use in electronic industry.
Structural, morphological and Magnetic studies of Soft magnetic Fe-Si-B Metallic Glass ribbonsDhanalakshmi, K.; Revathi, V.
doi: 10.1088/1742-6596/2886/1/012004pmid: N/A
A comparative study of two metallic glass ribbons produced by two different industries namely M/s Honeywell corporation, U.S.A., and M/s Vijay electricals. The potential of different experimental techniques like XRD, SEM and EDAX and VSM has been carried out for two soft metallic glass ribbons. XRD studies reveal that for sample A has two broad peaks and sample B shows the absence of any sharp peaks indicating crystalline secondary phases are <5%. Morphological studies show that sample A has homogeneous matrix whereas sample B has crystallites of varied shapes and sizes distributed in the range of 5-40 μm. EDAX for both the samples A and B was done to investigate the compositional elements. VSM measurements reveals sample B to exhibit a relatively larger anisotropy compared to sample A.
Exploring the Structural and Optical Properties of MoSe2 for Solar Cell PerformanceAnandh, BA.; Shankar Ganesh, A.; Nandakumar, P.; Saranya, D.
doi: 10.1088/1742-6596/2886/1/012006pmid: N/A
Efficient energy absorption is critical in perovskite solar cells (PSCs) for effective electron collection and mitigation of hole migration. Molybdenum diselenide (MoSe2) was produced using a simple hydrothermal process and subsequently studied for its structural and optical properties using various techniques, including XRD, RAMAN, FESEM, EDX, UV-Visible, BET, and XPS. The results show that the enhanced crystalline morphology, size, optical band gap, and surface area demonstrate promising attributes for solar cell applications. Furthermore, the I-V investigation reveals that MoSe2-based PSCs achieve a notable efficiency of electricity conversion is 7.97%. The increased performance is because of the greater surface area of MoSe2. which facilitates increased light absorption, and its ability to accelerate charge transfer within the electron transport layer. Moreover, the structural integrity of MoSe2 contributes significantly to its efficacy in converting solar energy into electrical energy. These findings underscore MoSe2 as a compelling candidate for advancing solar cell technologies, offering potential pathways for achieving higher efficiency and reliability in future solar energy systems.