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Atomic layer deposition technology for the development of high-quality, full-colour micro-LED displays 用于开发高质量全彩微型 LED 显示器的原子层沉积技术
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100051
Zijun Yan , Suyang Liu , Yue Sun , Rongxing Wu , Youqin Lin , Hao-Chung Kuo , Zhong Chen , Tingzhu Wu
{"title":"Atomic layer deposition technology for the development of high-quality, full-colour micro-LED displays","authors":"Zijun Yan ,&nbsp;Suyang Liu ,&nbsp;Yue Sun ,&nbsp;Rongxing Wu ,&nbsp;Youqin Lin ,&nbsp;Hao-Chung Kuo ,&nbsp;Zhong Chen ,&nbsp;Tingzhu Wu","doi":"10.1016/j.nxnano.2024.100051","DOIUrl":"10.1016/j.nxnano.2024.100051","url":null,"abstract":"<div><p>Micro light-emitting diodes (μLEDs) with unparalleled photoelectric characteristics are essential components for developing metaverse-related technologies. Immersive displays require reducing the LED size to the micro- or sub-microscale while retaining optimal optoelectronic capabilities. μLEDs, fabricated through the quantum dots colour conversion layer (QDs-CCL) process, offer a cost-effective solution for achieving displays with full-colour and ultrahigh quality. However, the sidewall defects significantly affect the optical and electrical properties of μLEDs with reduced chip size. Furthermore, QDs suffer from low excitation radiation and inferior operational stability induced by their intrinsic properties. Atomic layer deposition (ALD) is a promising chemical surface treatment technique with self-limiting properties that can enhance full-colour μLED devices. In this review, we explore recent studies on ALD techniques for full-colour μLED device fabrication. We discuss in detail the significant contribution of ALD in repairing sidewall defects in RGB tricolour μLED chips. Moreover, we explore applications of ALD in the protection of QDs and preparation of high-resolution CCLs. Finally, we discuss future prospects of ALD in developing high-resolution, full-colour displays.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"5 ","pages":"Article 100051"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000123/pdfft?md5=48cff398c130553b6d52482ba9dffe22&pid=1-s2.0-S2949829524000123-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139832113","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
Recent progresses on perovskite quantum dots patterning techniques for color conversion layer in micro-LED displays 用于微型 LED 显示器色彩转换层的包晶量子点图案化技术的最新进展
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100045
Xiaotong Fan , Xiao Yang , Xuemin Kong , Tianqi Zhang , Shuli Wang , Yue Lin , Zhong Chen
{"title":"Recent progresses on perovskite quantum dots patterning techniques for color conversion layer in micro-LED displays","authors":"Xiaotong Fan ,&nbsp;Xiao Yang ,&nbsp;Xuemin Kong ,&nbsp;Tianqi Zhang ,&nbsp;Shuli Wang ,&nbsp;Yue Lin ,&nbsp;Zhong Chen","doi":"10.1016/j.nxnano.2024.100045","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100045","url":null,"abstract":"<div><p>Micro light-emitting diodes (micro-LEDs) are considered crucial for the next-generation display technology. However, the high cost of large-scale transfer technology and the lack of maturity in full-color technology have hindered the availability of mature products. The perovskite quantum dot (PQD) material offers a promising solution for achieving full-color capabilities in micro-LED displays. This review article aims to provide an overview on the latest progresses on PQD full-color technology for micro-LEDs. The review covers a variety of patterning techniques, including photolithography, inkjet printing, microfluidic processing, and laser processing, as well as the research on intrinsic stability of PQDs. Finally, the current drawbacks and solutions of PQD color conversion micro-LEDs are discussed, and the future research prospects in this field are anticipated.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"5 ","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000068/pdfft?md5=8bccd542765520f04c10a0427dc549b2&pid=1-s2.0-S2949829524000068-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139503884","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
Evaluation of the performance of magnetic zeolite nanocomposites in removing various water contaminants as heavy metals, organic pollutants, and emerging contaminants: A review 评估磁性纳米沸石复合材料去除重金属、有机污染物和新兴污染物等各种水污染物的性能:综述
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100075
Koffi Sossou , S. Bala Prasad , Eyram Komlavi Agbotsou , Halarou Saidou Souley
{"title":"Evaluation of the performance of magnetic zeolite nanocomposites in removing various water contaminants as heavy metals, organic pollutants, and emerging contaminants: A review","authors":"Koffi Sossou ,&nbsp;S. Bala Prasad ,&nbsp;Eyram Komlavi Agbotsou ,&nbsp;Halarou Saidou Souley","doi":"10.1016/j.nxnano.2024.100075","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100075","url":null,"abstract":"<div><p>The presence of organic and inorganic contaminants such as pesticides, antibiotics, dyes, and heavy metals poses a risk to a human and the environment and therefore needs to be removed. The combination of natural zeolites and magnetic nanoparticles is employed as an excellent adsorbent for these pollutants removal from water. Magnetic zeolites are synthesized by incorporating magnetic nanoparticles, such as iron oxides or ferrites, into the zeolite framework. Various techniques, including co-precipitation, impregnation, and hydrothermal synthesis, have been employed by researchers to create the necessary magnetic zeolite composites and employed them for removing or reducing recalcitrant pollutants present in water or aqueous solutions. Magnetic zeolites have shown great promise in the removal of contaminants present in water. One of its best sides is its ability to separate and reuse materials easily. This review emphasizes magnetic zeolite as an effective adsorbent for water remediation and demonstrates its potential for water treatment. Magnetic zeolite can be used especially in regions where water treatment technologies are not yet met and can address waterborne disease issues. Due to its magnetic properties, and easier recovery and reuse of the adsorbents, the magnetic zeolite adsorption method is cost-effective and convenient</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"6 ","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000366/pdfft?md5=5e266cb227a90743f3205f2464d5d9fc&pid=1-s2.0-S2949829524000366-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140807118","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
High-Loading Platinum-Cobalt Intermetallic Compounds with Enhanced Oxygen Reduction Activity in Membrane Electrode Assemblies 高负载铂钴金属间化合物可增强膜电极组件的氧气还原活性
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100065
Yi Zhang , Yao-Lin A , Xiao-Qun Xie , Di-Ye Wei , Tao Shen , Qing-Na Zheng , Jin-Chao Dong , Jing-Hua Tian , Hua Zhang , Jian-Feng Li
{"title":"High-Loading Platinum-Cobalt Intermetallic Compounds with Enhanced Oxygen Reduction Activity in Membrane Electrode Assemblies","authors":"Yi Zhang ,&nbsp;Yao-Lin A ,&nbsp;Xiao-Qun Xie ,&nbsp;Di-Ye Wei ,&nbsp;Tao Shen ,&nbsp;Qing-Na Zheng ,&nbsp;Jin-Chao Dong ,&nbsp;Jing-Hua Tian ,&nbsp;Hua Zhang ,&nbsp;Jian-Feng Li","doi":"10.1016/j.nxnano.2024.100065","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100065","url":null,"abstract":"<div><p>Platinum-based intermetallic compounds (IMCs) are emerging as promising oxygen reduction reaction (ORR) catalysts in proton exchange membrane fuel cells (PEMFCs). However, large-scale synthesis of supported IMCs catalysts with small particle size and high loading remains a significant challenge, greatly hindering the applications of IMCs in PEMFCs. Herein, carbon-supported PtCo IMCs with a metal loading of ∼40% and a mean size of ∼5 nm were successfully prepared via a simple impregnation method and display excellent performances in membrane electrode assemblies (MEA). The ordering degree of the PtCo IMCs can be tuned by carefully manipulating the annealing conditions. X-ray photoelectron spectroscopy characterizations demonstrate that the electronic interactions between Pt and Co are strengthened due to highly ordered structure of PtCo IMCs, thus promoting the ORR performance. The optimized PtCo IMCs exhibit an excellent ORR performance with a specific activity of 2.02 mA cm<sup>−2</sup> and mass activity of 0.92 A mgPt<sup>−1</sup> at 0.9 V (vs. RHE), which are approximately 5 times and 6 times higher than those of the commercial Pt/C. More importantly, the PtCo IMCs also display enhanced performance in MEA, and the power density at 1.5 A cm<sup>−2</sup> and 2.5 A cm<sup>−2</sup> is 0.949 W cm<sup>−2</sup> and 1.244 W cm<sup>−2</sup>, respectively, thus reducing the Pt usage by 40% compared to Pt/C. This work offers a facile route for the scale preparation of platinum-based intermetallic compounds and promotes their practical applications in PEMFCs.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"5 ","pages":"Article 100065"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000263/pdfft?md5=d36ad1dda910b75d763085687d864d2e&pid=1-s2.0-S2949829524000263-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140160681","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
Structural characterization, optical, and magnetic properties of MgTbxFe2−xO4 nano ferrite particles using a combustion technique 利用燃烧技术研究 MgTbxFe2-xO4 纳米铁氧体颗粒的结构特征、光学和磁学特性
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100050
Gollapudi Koteswari , N. Hari kumar , D. Ravinder
{"title":"Structural characterization, optical, and magnetic properties of MgTbxFe2−xO4 nano ferrite particles using a combustion technique","authors":"Gollapudi Koteswari ,&nbsp;N. Hari kumar ,&nbsp;D. Ravinder","doi":"10.1016/j.nxnano.2024.100050","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100050","url":null,"abstract":"<div><p>The citrate gel auto-combustion method was utilised to synthesis terbium-doped nanoparticles (NP) with considerable concentrations of magnesium ferrites, using the chemical formula MgTbxFe<sub>2−x</sub>O<sub>4</sub> and an X range of 0.000 to 0.0030 (with an X step of 0.0005). At 300 K, X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transition electron microscopy (TEM), and magnetic characteristics were all determined. The XRD and TEM images indicate nanoscale ranges as well as the cubic spinel structure, which is merely phased, and confirm the normal crystallite size. The lattice parameter and volume decrease as density increases with doping of terbium. The images from the FESEM. It is evident that the grain clusters were found within the material. In the specimen's case, the highly interacting grains were found. The fourier-transformed infrared spectroscopy <strong>(</strong>FTIR) data clearly suggests that two metallic bands have formed, confirming the cubic spinel ferrites. There are two primary absorption bands visible between 200 and 650 cm<sup>−1</sup>. The UV–vis investigation demonstrates that the calculated direct band gap energy values have a violet shift. The band gab energy was reported in the range of 415.30 eV to 375.12 eV.The magnetic properties of the hysteresis loops indicate a transition from hard magnetic moments to soft magnetic moments. All magnetic properties were reduced when the Tb<sup>3+</sup> ion was substituted. They are excellent for switching memory storage devices as well as telecommunications.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"5 ","pages":"Article 100050"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000111/pdfft?md5=5563e17a9dd68be5cbadffcd5bf300cd&pid=1-s2.0-S2949829524000111-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140342134","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
Biogenic synthesis of carbon dots with inbuilt biological activity 生物合成具有内置生物活性的碳点
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2023.100034
Varsha Sahu, Sunit Kumar Sahoo
{"title":"Biogenic synthesis of carbon dots with inbuilt biological activity","authors":"Varsha Sahu,&nbsp;Sunit Kumar Sahoo","doi":"10.1016/j.nxnano.2023.100034","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100034","url":null,"abstract":"<div><p>Recently, carbon dots have been widely used for the diagnosis to treatment of disease, because of their distinctive properties. A lots of research work has been done on CDs, first is their synthesis as a green approach, which includes biomass, plant, and waste material as carbon precursor. Another is their application and properties. Carbon dots are generally used as a carrier for delivering the drug for treating diseases, which somehow reduces the toxicity of the drug and increases its activity but not that much. Our review focuses on the biogenic approach for the synthesis of carbon dots, which is also a part of green synthesis. Biogenic techniques involve the principle of using living organisms such as plants and microorganisms for the synthesis of carbon dots. The biogenic approach provides various benefits such as low toxicity, sustainable and renewable sources, eco-friendly, and some biological activity. Carbon dots prepared from the biogenic source provides biological properties such as antimicrobial, anticancer, antioxidant, anti-inflammatory, and some other biological activity, which inbuilt into carbon dots and give their therapeutic action without further drug loading. Biological or therapeutic activity containing carbon dots also minimizes drug resistance, non-target side effects into cells and drug-related adverse effects, which provides great advancement for treating the diseases. Hence, this review is focused only on the biogenic synthesis of carbon dots using plants and microorganisms, their preparation technique, properties, formation mechanism, purification and their specific biological or therapeutic actions with the improvement of nanoscience.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"5 ","pages":"Article 100034"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829523000347/pdfft?md5=0045ad538d65e429e24d7bb2a653c490&pid=1-s2.0-S2949829523000347-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140345167","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
A novel multi-drugs ciprofloxacin-curcumin-N-acetylcysteine co-delivery system based on hybrid nanocrystals for dry powder inhalations 基于混合纳米晶体的新型环丙沙星-姜黄素-N-乙酰半胱氨酸多药干粉吸入共给药系统
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100084
Yingying Ma , Zhufeng Cong , Yancai Wang , Peng Gao
{"title":"A novel multi-drugs ciprofloxacin-curcumin-N-acetylcysteine co-delivery system based on hybrid nanocrystals for dry powder inhalations","authors":"Yingying Ma ,&nbsp;Zhufeng Cong ,&nbsp;Yancai Wang ,&nbsp;Peng Gao","doi":"10.1016/j.nxnano.2024.100084","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100084","url":null,"abstract":"<div><p>This study designed a novel multi-drugs co-delivery system of ciprofloxacin-curcumin-N-acetylcysteine based on hybrid nanocrystals technology for dry powder inhalations (DPIs). The particle size of PVP k-30 stabilized curcumin nanosuspensions and Poloxamer 188 stabilized ciprofloxacin - N-acetylcysteine (NAC) hybrid nanocrystals was 219.2±4.6 nm and 346.3±7.3 nm, respectively (<em>n</em>=3). The curcumin nanosuspensions was solidified with ciprofloxacin - N-acetylcysteine (NAC) hybrid nanocrystals accompanied by the L-leucine to improve the dispersion of the DPIs. The dispersion, uniformity and fluidity of the spray-dried ciprofloxacin - N-acetylcysteine - curcumin (CPFX/NAC/Cur) nanosuspensions superior to the freeze-dried DPIs. The ciprofloxacin and curcumin of the CPFX/NAC/Cur DPIs obtained by spray-drying with mannitol was amorphous form, and thereby the dispersibility and solubility would be further improved. The four components complex DPIs delivery system designed in this study could give full play to the effects of each component, and then produce synergistic results. Therefore, this multi-drugs ciprofloxacin-curcumin-N-acetylcysteine co-delivery system based on hybrid nanocrystals has the potential to be used in the clinical treatment of pulmonary infections to improve the treatment effect and quality of life of patients.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"6 ","pages":"Article 100084"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000457/pdfft?md5=39b6e1d27712b2c4528b35d7c50f35ad&pid=1-s2.0-S2949829524000457-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542024","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
Photocatalytic degradation of azo dyes over MXene-based catalyst: Recent developments and future prospects MXene 基催化剂对偶氮染料的光催化降解:最新进展与未来展望
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100055
Carene Illahi , Wahyudi E.F. Hutabarat , Nadya Nurdini , Fainan Failamani , Grandprix T.M. Kadja
{"title":"Photocatalytic degradation of azo dyes over MXene-based catalyst: Recent developments and future prospects","authors":"Carene Illahi ,&nbsp;Wahyudi E.F. Hutabarat ,&nbsp;Nadya Nurdini ,&nbsp;Fainan Failamani ,&nbsp;Grandprix T.M. Kadja","doi":"10.1016/j.nxnano.2024.100055","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100055","url":null,"abstract":"<div><p>Dye-induced water pollution is a noteworthy environmental issue, mainly caused by industrial activities that utilize and release effluent-containing dyes, especially azo dyes. One frequently employed large-scale technique for removing dyes from water is photocatalysis degradation. The use of MXene-based catalysts as an advanced material holds promise in overcoming the limitations inherent in previous catalysts due to its expansive surface area and unique tunable properties. The potential of integrating MXene-based catalysts with nanoparticles and semiconductors offers a path to enhance photocatalytic efficiency, create composite materials, promote environmental sustainability, and drive innovations in water purification. Further developments in MXene, including its properties, functional groups, and active sites tailored to semiconductor compatibility, can maximize the capabilities of semiconductors. The rate of photocatalytic reactions stands to improve significantly due to MXene's high light absorption capacity and extensive nanoporous structure. Consequently, MXene-based catalysts in photocatalytic degradation hold the potential to contribute to a more sustainable environment, particularly in water treatment.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"6 ","pages":"Article 100055"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000160/pdfft?md5=de449772632b61dc1d42a3b93ae6ff54&pid=1-s2.0-S2949829524000160-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438276","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 Co3O4 nanoparticles using spent coffee: Application in catalytic and photocatalytic dye degradation 利用废咖啡绿色合成 Co3O4 纳米粒子:在催化和光催化染料降解中的应用
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100069
Sean Drummer , Orlette Mkhari , Mahabubur Chowdhury
{"title":"Green synthesis of Co3O4 nanoparticles using spent coffee: Application in catalytic and photocatalytic dye degradation","authors":"Sean Drummer ,&nbsp;Orlette Mkhari ,&nbsp;Mahabubur Chowdhury","doi":"10.1016/j.nxnano.2024.100069","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100069","url":null,"abstract":"<div><p>Clean water is vital for societal progress, however, the pollution caused by dyes presents a significant global challenge. Dye-contaminated industrial effluent overwhelms wastewater treatment facilities, causing harm to water bodies and ecosystems. This study demonstrates the synthesis of Co<sub>3</sub>O<sub>4</sub> nanoparticles using spent coffee extract as a bioreducing agent and its application in dye degradation. The structural and optical properties of nanostructures were confirmed using X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and UV–vis spectroscopy. The Co<sub>3</sub>O<sub>4</sub>-activated peroxymonosulfate (PMS) system exhibited exceptional catalytic efficiency by attaining a degradation rate of 89.27 % for Tartrazine dye within a 30-minute timeframe, even in the absence of illumination. When exposed to simulated visible light, the degradation kinetic rate increased by 37.60 %, highlighting the excellent photocatalytic activity of Co<sub>3</sub>O<sub>4</sub> nanoparticles. Furthermore, leveraging natural sunlight led to a notable Tartrazine degradation rate of 97.11 %, signifying a substantial 45.41 % enhancement in reaction efficiency when contrasted with the conventional Co<sub>3</sub>O<sub>4</sub>/PMS system. Lastly, the Co<sub>3</sub>O<sub>4</sub> nanoparticles illustrated remarkable degradation of synthetic industrial dye effluents (Tartrazine, Methyl Orange, and Remazol Brilliant Red), reaching up to 92.77 % removal, indicating its potential for use in real-world scenarios.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"6 ","pages":"Article 100069"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000305/pdfft?md5=024c88cbf1b9b0ad3a96b19c2edc7c51&pid=1-s2.0-S2949829524000305-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140604548","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
Enhanced corrosion resistance of 58S bioglass integrated TiO2 nanotubular arrays 增强 58S 生物玻璃集成 TiO2 纳米管阵列的耐腐蚀性能
Next Nanotechnology Pub Date : 2024-01-01 DOI: 10.1016/j.nxnano.2024.100070
Konduru Ashok Kumar Raju , Amit Biswas , Amit Kumar Singh , Yogendra Mahton , Partha Saha
{"title":"Enhanced corrosion resistance of 58S bioglass integrated TiO2 nanotubular arrays","authors":"Konduru Ashok Kumar Raju ,&nbsp;Amit Biswas ,&nbsp;Amit Kumar Singh ,&nbsp;Yogendra Mahton ,&nbsp;Partha Saha","doi":"10.1016/j.nxnano.2024.100070","DOIUrl":"https://doi.org/10.1016/j.nxnano.2024.100070","url":null,"abstract":"<div><p>Titanium and its alloys are widely used for orthopedic implant fabrication. The interfacial reaction between titanium and living tissue is controlled by the oxide film formed on the surface of the titanium substrate. In this work, an anodic oxidation technique was explored to create the self-organized TiO<sub>2</sub> nanotube array by maintaining a constant voltage of 30 V for 4 h using ethylene glycol (80%), ammonium fluoride (0.3 wt%), and the distilled water adjusted the remaining balance (19.7%). The constructed nanotube array has a diameter of 100 ± 12 nm. Further, a 58 S bioglass was synthesized using a sol-gel technique and integrated into the TiO<sub>2</sub> nanotubular array. The samples were analyzed in terms of their topography and electrochemical response. The 58 S bioglass-integrated nanotubular surface effectively improves resistance to electrochemical corrosion.</p></div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":"6 ","pages":"Article 100070"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829524000317/pdfft?md5=a80d4c479d990da3863cbfc819de5758&pid=1-s2.0-S2949829524000317-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140813689","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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