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Covalent functionalization of boron nitride nanotubes: A brief review 氮化硼纳米管的共价功能化:简要回顾
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100166
Thang Quoc Huynh
{"title":"Covalent functionalization of boron nitride nanotubes: A brief review","authors":"Thang Quoc Huynh","doi":"10.1016/j.nxnano.2025.100166","DOIUrl":"10.1016/j.nxnano.2025.100166","url":null,"abstract":"<div><div>Boron nitride nanotubes (BNNT) have garnered significant attention recently due to their unique properties, such as high thermal conductivity, excellent mechanical strength, neutron shielding capacity, and chemical stability. However, their inherent hydrophobic nature and poor solubility in most solvents hinder their widespread application in various fields. Covalent functionalization of BNNT offers a promising solution to enhance their dispersibility, tailor their properties, and enable their integration into diverse applications. This work examines advancements in covalent functionalization strategies to improve BNNT dispersibility and broaden their applicability. Key aspects explored include identifying effective functionalization methods, understanding their impact on BNNT structure, and evaluating current challenges. Various approaches, such as defect-site functionalization, defect generation, and direct functionalization, are analyzed. Therefore, this study will provide a systematic evaluation of emerging reactions, current limitations, and potential breakthroughs in BNNT modification.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100166"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decentralized electrochemical biosensors for biomedical applications: From lab to home
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2024.100128
Pramod K. Kalambate , Vipin Kumar , Dhanjai
{"title":"Decentralized electrochemical biosensors for biomedical applications: From lab to home","authors":"Pramod K. Kalambate ,&nbsp;Vipin Kumar ,&nbsp;Dhanjai","doi":"10.1016/j.nxnano.2024.100128","DOIUrl":"10.1016/j.nxnano.2024.100128","url":null,"abstract":"<div><div>Integrated electrochemical biosensors represent the new generation of sensing tools in the biomedical field, delivering compact-sized, portable, wearable, and implantable devices. Advances in sensor fabrication methods, scalable material synthesis, microelectronics, flexible electronics, and wireless communication have enabled the evolution of biosensing devices from traditional hospital-centric systems to home-centric solutions, suitable for use by non-experts to analyze early signs of diseases. Despite these advancements, key challenges remain, including scalability, material durability, power management, and seamless integration of biosensor components into user-friendly platforms. The translation of these technologies involves strategies to overcome these challenges, such as developing cost-effective manufacturing methods and optimizing device design for real-world applications. Furthermore, the integration of these devices with the Internet-of-Things (IoT), Internet-of-Medical-Things (IoMT), artificial intelligence (AI), and machine learning (ML) algorithms has demonstrated breakthrough technological solutions for healthcare management, disease prognosis, and patient care. However, potential risks such as data security vulnerabilities, privacy concerns, and regulatory challenges must be addressed to ensure safe and ethical deployment of these technologies. Herein, we provide an in-depth analysis of the evolution of conventional electrochemical biosensors into miniaturized, integrated devices, focusing on their potential for better healthcare management and highlighting associated technical, regulatory, and ethical challenges. We also highlight key aspects of 6th generation sensing technology. Additionally, the role of IoT and AI-assisted technologies is critically discussed, presenting both their transformative benefits and the risks they pose in the biomedical field.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100128"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Next-generation nanocomposites: Optimizing Al2O3-CuO-ZnO and reduced graphene oxide for enhanced performance
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2024.100119
Rahul Sharma , Harish Kumar , Rajni Kumari , Gaman Kumar , Bhawna Swami , Antresh Kumar , Gita Rani , Ramesh Kumar
{"title":"Next-generation nanocomposites: Optimizing Al2O3-CuO-ZnO and reduced graphene oxide for enhanced performance","authors":"Rahul Sharma ,&nbsp;Harish Kumar ,&nbsp;Rajni Kumari ,&nbsp;Gaman Kumar ,&nbsp;Bhawna Swami ,&nbsp;Antresh Kumar ,&nbsp;Gita Rani ,&nbsp;Ramesh Kumar","doi":"10.1016/j.nxnano.2024.100119","DOIUrl":"10.1016/j.nxnano.2024.100119","url":null,"abstract":"<div><div>Exceptional reduced graphene oxide-based nanocomposites (NCs) were synthesized using Al<sub>2</sub>O<sub>3</sub>-CuO-ZnO (ACZ) nanoparticles (NPs) through a controlled hydrothermal method. Nanomaterials with improved optical, magnetic, antibacterial, adsorption, anticorrosive, and photocatalytic characteristics were synthesized, showing synergistic behavior. To understand key structural features, the NCs were thoroughly examined using energy-dispersive X-ray analysis, SEM, X-ray diffraction, FTIR, and UV-Vis. spectroscopy. Adding ACZ NPs in the rGO matrix, increased magnetic, anticorrosive, improved antibacterial efficacy against Gram-positive bacteria, and photocatalytic activities. The NCs were exposed to sunlight and UVA and UVB light to degrade methylene blue (MB) dye i.e., 89.21 % in 75 min. The anti-corrosive characteristics (95.9 %) were examined against mild steel using a 1.0 N H<sub>2</sub>SO<sub>4</sub> at room temperature at a very low concentration i.e., 10 ppm. The magnetic behavior of the NCs was examined with the help of Gouy’s balance. The induced current showed a clear relationship to the applied magnetic field strength, indicating that the NCs are paramagnetic. The antibacterial effects of the NCs were evaluated against <em>S. aureus</em> and <em>E. coli</em> at different concentrations. The ACZ@rGO NCs exhibited exceptional versatility, showing great promise for water purification, adsorption, corrosion protection, photocatalytic processes, biomedical technologies, and environmental restoration.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100119"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Colletotrichum gloeosporioides (endophytic fungi) mediated biosynthesis of TiO2 nanoparticles for high-performance dye-sensitized solar cell
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2024.100122
Sakshi Singh , Shubham Sharma , Rajnish Bharti , Ravindra Nath Kharwar , Pankaj Srivastava
{"title":"Colletotrichum gloeosporioides (endophytic fungi) mediated biosynthesis of TiO2 nanoparticles for high-performance dye-sensitized solar cell","authors":"Sakshi Singh ,&nbsp;Shubham Sharma ,&nbsp;Rajnish Bharti ,&nbsp;Ravindra Nath Kharwar ,&nbsp;Pankaj Srivastava","doi":"10.1016/j.nxnano.2024.100122","DOIUrl":"10.1016/j.nxnano.2024.100122","url":null,"abstract":"<div><div>This work reports an environmentally friendly protocol for synthesizing TiO<sub>2</sub> nanoparticles (NPs) by utilizing endophytic fungi, <em>Colletotrichum gloeosporioides (C. gloeosporioides)</em>. The fungi isolated from Thevetia peruviana, worked as a bio-capping agent to regulate the growing TiO<sub>2</sub> NPs morphology and agglomeration behavior. The formation of TiO<sub>2</sub> NPs was validated by surface plasmon resonance, observed using UV–vis spectroscopy. Using XRD and HRTEM, the structure, size, and shape of the as-synthesized anatase TiO<sub>2</sub> NPs were characterized. BET analysis was used to examine the surface area and porosity. EIS revealed the greater charge collection efficiency and enhanced electron lifetime for the TiO<sub>2</sub> obtained with N-3 (endophytic fungal extract). The dye-sensitized solar cell (DSSC) fabricated with bio-capped TiO<sub>2</sub> (N-3) photoanode exhibited greater light-to-current conversion efficiency, 3.50 %; much enhanced compared to 0.98 % obtained with un-capped TiO<sub>2</sub> NPs (N-1) based cell. The study demonstrated that the endophytic fungus <em>C.gloeosporioides</em> played a vital role in enhancing the cell performance.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100122"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green synthesis of silver nanoparticles using Nothapodytes foetida leaf extract: Optical, antibacterial and anticancer activities
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100162
Sunitha Bai Dharavath , Narsimhulu Maduru , Mahendar Porika , Pavani Chirumamilla , Spoorthi Veera , Nirosha Ponnam , Shasthree Taduri
{"title":"Green synthesis of silver nanoparticles using Nothapodytes foetida leaf extract: Optical, antibacterial and anticancer activities","authors":"Sunitha Bai Dharavath ,&nbsp;Narsimhulu Maduru ,&nbsp;Mahendar Porika ,&nbsp;Pavani Chirumamilla ,&nbsp;Spoorthi Veera ,&nbsp;Nirosha Ponnam ,&nbsp;Shasthree Taduri","doi":"10.1016/j.nxnano.2025.100162","DOIUrl":"10.1016/j.nxnano.2025.100162","url":null,"abstract":"<div><div>This study represents the green synthesis of silver nanoparticles using <em>Nothapodytes foetida</em> leaf extract (<em>Nf</em>-AgNPs) and investigates the optical, antibacterial and anti-cancer activities. The plant extract acts both as reducing agent as well as capping agent. The synthesized <em>Nf</em>-AgNPs were characterized by UV-Visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), Powder X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDX) and Photoluminescence (PL) techniques. The <em>Nf</em>-AgNPs exhibited maximum absorbance at 430 nm in UV–vis spectrum. The XRD analysis of <em>Nf</em>-AgNPs indicated the particles are a face-centered cubic (fcc) structure with an average crystallite size of 40.73 nm. FTIR analysis of <em>Nf</em>-AgNPs identified different functional groups. Photoluminescence (PL) spectra of <em>Nf</em>-AgNPs exhibited emission peak at 451 nm, when it excited at 330 nm. The <em>Nf</em>-AgNPs confirmed significant anticancer activity towards cancerous cells. The in vitro anticancer activity of <em>Nf</em>-AgNPs nanoparticles against the A549 and HepG2 cells showed the IC<sub>50</sub> value of 69.2 and 41.3 μg/mL, respectively. In addition, antibacterial activity was done by agar well diffusion method and <em>Nf-</em>AgNPs showed a greater ability to inhibit Gram-positive and Gram-negative bacteria compared to other treatments tested. These results confirm that <em>Nf</em>-AgNPs can serve as antibacterial and anticancer agents for biomedical applications.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100162"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of eco-friendly rGO/ZrP nanocomposite as novel adsorbents for enhanced non-enzymatic salicylic acid delivery
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100142
Kalyani Adhikary, Pallabi Goswami
{"title":"Synthesis of eco-friendly rGO/ZrP nanocomposite as novel adsorbents for enhanced non-enzymatic salicylic acid delivery","authors":"Kalyani Adhikary,&nbsp;Pallabi Goswami","doi":"10.1016/j.nxnano.2025.100142","DOIUrl":"10.1016/j.nxnano.2025.100142","url":null,"abstract":"<div><div>This research focuses on the synthesis and characterization of zirconium phosphate (ZrP) nanoparticles supported on reduced graphene oxide (rGO) and investigates their performance as adsorbents for the controlled release of salicylic acid (SA). The rGO/ZrP nanocomposites were synthesized using an organometallic modification approach and comprehensively characterized utilizing a range of analytical techniques, including elemental analysis. The hybrid nanostructure leverages the high surface area and unique physicochemical properties of reduced graphene oxide (rGO), combined with the layered architecture of zirconium phosphate (ZrP), to enhance adsorption capacity and optimize release dynamics. The adsorption behavior of salicylic acid (SA) onto the zirconium phosphate framework was systematically investigated. Adsorption isotherm analyses revealed robust interactions between salicylic acid (SA) and the zirconium phosphate framework, primarily facilitated by hydrogen bonding and electrostatic forces. The adsorption kinetics followed a pseudo-second-order model, indicative of chemisorption as the prevailing mechanism, while the Langmuir isotherm model confirmed monolayer adsorption with a high binding affinity between SA and ZrP. Furthermore, the release profile of SA from the rGO/ZrP composites demonstrated a slow and sustained release over time. These results highlight the potential of ZrP-based nanostructures as efficient carriers for SA, with significant prospects for environmental and agricultural applications.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100142"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of calcination temperature effect on crystallographic, morphological, optical, and magnetic properties of silver-doped magnesium ferrite nanoparticles
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100140
Sk Hasnat Taref Zim , Md Naimur Rahman Naim , Md Alamgir Hossain , Md Sohel Sikder
{"title":"Investigation of calcination temperature effect on crystallographic, morphological, optical, and magnetic properties of silver-doped magnesium ferrite nanoparticles","authors":"Sk Hasnat Taref Zim ,&nbsp;Md Naimur Rahman Naim ,&nbsp;Md Alamgir Hossain ,&nbsp;Md Sohel Sikder","doi":"10.1016/j.nxnano.2025.100140","DOIUrl":"10.1016/j.nxnano.2025.100140","url":null,"abstract":"<div><div>Silver-doped magnesium ferrite was synthesized via the chemical co-precipitation method by calcination at temperatures of 800°C, 900°C, and 1000°C. At these temperatures, x-ray diffraction analysis measured crystalline sizes of 30.67, 31.09, and 41.32 nm while investigating calcination effects on interionic bond lengths, distances, and angles, thereby influencing superexchange interactions that determine the magnetic properties. SEM images showed well-defined nanoparticle sizes ranging from 349.36 to 685.53 nm, with a variation in crystal number containing 11–17. UV spectroscopy revealed optimal semiconductor behavior, with wide energy band gaps ranging from 4.77 to 5.07 eV. VSM studied the magnetic properties; coercivity varied from 705.88 to 478.24 Oe, while saturation magnetization decreased from 65.05 to 44.41 emu/g as the crystalline size increased. Notably, among the different calcination temperatures for the AMSF nanoparticles, the sample calcined at 800°C demonstrated the best performance.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photoelectrochemical CO2 reduction on CuO-Cu2O nanocomposites with noble metal co-catalysts enhances the production of C1 oxygenates and acetate
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2024.100125
Tahereh Mokary Yazdely, Ricard Garcia-Valls, Alberto Puga
{"title":"Photoelectrochemical CO2 reduction on CuO-Cu2O nanocomposites with noble metal co-catalysts enhances the production of C1 oxygenates and acetate","authors":"Tahereh Mokary Yazdely,&nbsp;Ricard Garcia-Valls,&nbsp;Alberto Puga","doi":"10.1016/j.nxnano.2024.100125","DOIUrl":"10.1016/j.nxnano.2024.100125","url":null,"abstract":"<div><div>Multi-junction copper oxide nanocomposite photocathodes formed by CuO nanowire arrays coated with Cu<sub>2</sub>O nanopyramids or stacked nanoprisms, <em>i.e.</em> CuO(NWA)|Cu<sub>2</sub>O(NPy), exhibit remarkable electrochemical stability toward reductive corrosion. Whilst bare CuO nanowires are extremely prone to decomposition even at the mildest potentials applied, the core@shell morphology of CuO(NWA)|Cu<sub>2</sub>O(NPy) resists cathodic potentials up to −0.7 V (<em>vs</em>. AgCl/Ag). Precisely controlled electrodeposition of silver or gold nanoparticles resulted in Ag nanotrails arranged on flatter surface regions in CuO(NWA)|Cu<sub>2</sub>O(NPy)|Ag, whereas Au nanoaggregates were deposited on both flat areas and prominent apexes in CuO(NWA)|Cu<sub>2</sub>O(NPy)|Au. Photocurrent measurements demonstrated redox process activation, namely above three-fold current density increases, by light for CuO(NWA)|Cu<sub>2</sub>O(NPy). The participation of CO<sub>2</sub> in them was also confirmed by around 70 % photocurrent increases (higher than 0.2 mA cm<sup>−2</sup>) and by sensibly milder cathodic potential onsets (≤ −0.4 V), as recorded by linear sweep voltammetry. Photoelectrochemical CO<sub>2</sub> reduction experiments under simulated sunlight yielded oxygenated products in the liquid phase, chiefly formate, although acetate was also consistently produced, especially in the presence of noble metal co-catalysts. Specifically, acetate yields increased by 30–40 % for CuO(NWA)|Cu<sub>2</sub>O(NPy)|Ag and CuO(NWA)|Cu<sub>2</sub>O(NPy)|Au up to 56 and 54 μM, respectively. Methanol could be also formed under specific conditions. A mechanistic proposal is postulated to account for all stability and selectivity phenomena observed.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100125"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of micellar media on the bioavailability, solubility, and stability of curcumin
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2024.100124
Jamsheera Anjudikkal , Alok Shukla , Ajmal Koya Pulikkal
{"title":"Effects of micellar media on the bioavailability, solubility, and stability of curcumin","authors":"Jamsheera Anjudikkal ,&nbsp;Alok Shukla ,&nbsp;Ajmal Koya Pulikkal","doi":"10.1016/j.nxnano.2024.100124","DOIUrl":"10.1016/j.nxnano.2024.100124","url":null,"abstract":"<div><div>Curcumin (CUR), a polyphenolic pigment of turmeric, -possess biological and medicinal properties. Regardless of having a wide range of therapeutic applications, CUR’s poor bioavailability, owing to its meagre solubility and stability, limits its application from being used as a promising drug. Several surfactants (nonionic, anionic, and cationic) have been tried to overcome the limitations of CUR. Studies suggest that the incorporation of CUR in micellar media plays a significant role in improving the solubility and stability of CUR. The choice of surfactant depends on the critical micelle concentration and the degree to which the CUR partitions into the micelles. Further, CUR-surfactant interactions can be brought about by various techniques, viz., microencapsulation, solid dispersion, and nanoemulsions. This article focuses on the influence of the micellar media on the stability, solubility, and bioavailability of CUR, along with the different methodologies used to prepare CUR-surfactant systems. Moreover, the medicinal applications of CUR-loaded surfactant systems are also briefly discussed.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"7 ","pages":"Article 100124"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ZnO/CdS nanocomposites: Synthesis, characterization and assessment of photocatalytic performance
Next Nanotechnology Pub Date : 2025-01-01 DOI: 10.1016/j.nxnano.2025.100146
Anupam Sarker , Shahriar Atik Fahim , Rupna Akther Putul , Humayra Gazi , Shah Md. Masum , Md. Ashraful Islam Molla
{"title":"ZnO/CdS nanocomposites: Synthesis, characterization and assessment of photocatalytic performance","authors":"Anupam Sarker ,&nbsp;Shahriar Atik Fahim ,&nbsp;Rupna Akther Putul ,&nbsp;Humayra Gazi ,&nbsp;Shah Md. Masum ,&nbsp;Md. Ashraful Islam Molla","doi":"10.1016/j.nxnano.2025.100146","DOIUrl":"10.1016/j.nxnano.2025.100146","url":null,"abstract":"<div><div>This study investigates the photocatalytic degradation of Methyl orange (MO) dye using ZnO/CdS nanocomposites synthesized by the hydrothermal technique. Using XRD, FTIR, FESEM-EDS, TEM, UV-Vis DRS, BET, and XPS, the chemically produced chalcogenide hybrid nanocomposites were thoroughly characterized. The 5 % ZnO/CdS nanocomposite photocatalyst exhibited a crystallite size of 5.63 nm, a bandgap energy of 2.35 eV, and a larger surface area of 118.47 m<sup>2</sup>/g, indicating excellent photocatalytic performance compared to pristine ZnO and CdS. The best MO removal efficiency of 98.67 % within 60 min is demonstrated by the 5 % ZnO/CdS photocatalyst under UV-C irradiation. The photocatalytic MO degradation reaction maintains a pseudo-first-order kinetic law. The rate constant (<em>k</em>) and half-life (<em>t</em><sub>1/2</sub>) are found to be 0.065 min<sup>−1</sup> and 10.66 min, respectively. The reusability of the 5 % ZnO/CdS photocatalyst was investigated, and the MO removal efficiency remained acceptable after three cycles. These findings suggest that the synthesized ZnO/CdS nanocomposite is a promising photocatalyst for efficiently and sustainably removing organic pollutants from wastewater.</div></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"8 ","pages":"Article 100146"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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