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[IEEE 2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) - Hangzhou, China (2018.8.13-2018.8.17)] 2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) - Bottom up Nano-integration Technique for the Fabrication of Novel Superconducting Quantum Interference Devices Based on Granular Superconducting Diamond
摘要： The report is focused on the fabrication and characterization of nano-necklaces created from individual nanostructures namely heavily boron-doped superconducting nano-diamond grains and BIISCO whiskers. The production of nanostructures from individual nano-diamonds is done using 3D mechanical nano-manipulation and nano-assembling based on new generation shape memory alloy composite nanotweezers. Quantum transport of such nano-necklaces will be probed in order to study the confinement effects on superconductivity and other related quantum effects. This bottom-up nano-integration technique thus demonstrates a niche fabrication route for the realization of novel complex nanostructured quantum rings which may be of use for quantum information technologies.
关键词： nanodiamonds,bottom-up paradigm,carbon based nanomaterials,nanogripper,shape memory effect,nano-manipulation,superconductivity
更新于2025-09-23 15:23:52
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Laser-induced graphene and carbon nanotubes as conductive carbon-based materials in environmental technology
摘要： Nanotechnology and nanomaterials have attracted interest due to their potential in mitigating contemporary environmental challenges, such as the stressors imposed by increased industrial and agricultural activities, and the deterioration of air, soil and water quality. In particular, advanced technologies that harness carbon-based nanomaterials are poised to emerge as tools that provide new solutions for the global water crises. These tools include, electrically conductive membrane processes, which uniquely combine a separation process with a functional surface. In this respect, laser-induced graphene (LIG) and carbon nanotubes (CNTs) are electrically conductive carbon nanomaterials that hold great utility in a multitude of environmental applications, including the development of fouling-resistant systems for desalination and water treatment, enhanced separation methods, and innovative pollutant sensing and electrocatalytic platforms. Consequently, this review article describes and compares some important recent advances in LIG- and CNT-based electroactive surfaces. The discussion of LIG as an emerging carbon material set in context with CNTs is intended to shed light on future directions and development possibilities to meet the growing global challenges in terms of water treatment applications of both materials as well as other electrically conductive carbon-based nanomaterials exhibiting exceptional performance and versatility.
关键词： environmental applications,nanomaterials,electrically conductive membrane processes,laser-induced graphene,Nanotechnology,water treatment,carbon nanotubes,carbon-based nanomaterials
更新于2025-09-16 10:30:52
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The synthesis of carbon-based nanomaterials by pulsed laser ablation in water
摘要： Pulsed Laser Ablation in liquid (PLAL) is considered as a robust and simple technique for producing nanoparticles (NPs) using lasers. The carbon-based nanoparticles were fabricated via the PLAL approach by irradiating a graphite target with a pulsed Nd:YAG laser of wavelength 532 nm. The graphite target was immersed in distilled water and irradiated for 10 min. The pulse length, reputation rate, and ?uence were 6 ns, 10 Hz, and 0.4 J cm?2, respectively. The structural and physical properties of the synthesized NPs were investigated and analyzed using different characterization methods. For example, Transmission Electron Microscopy (TEM) images revealed diverse carbon nanostructures such as graphene nanosheets, nanospheres, nanospheres in the shape of a necklace, and nanotubes. The spectrum of Energy Dispersive X-Ray spectroscopy (EDX) con?rmed successful synthesis of high purity carbon nanostructures. Moreover, the result of X-Ray Diffraction (XRD) Spectroscopy indicated the presence of reduced Graphene Oxide (rGO) with a (002) plane and the absence of Graphene Oxide (GO). The transmission spectrum from Ultraviolet-Visible (UV–vis) analysis showed a strong trough at 266 nm which is attributed to the presence of carbon nanostructures. Furthermore, Fourier-Transform Infrared Spectroscopy (FTIR) analysis demonstrated the vibration bonds related to carbon. The nanostructures produced were semi-stable with little agglomeration as was inferred from the results of the Zeta Potential. Finally, the Dynamic Light Scattering (DLS) analysis supported the TEM results. PLAL technique is proved to be a simple method for producing carbon-based nanomaterials. Moreover, the laser ?uence was found to be an important factor which affects greatly the type of nanostructures that could be synthesized during laser ablation.
关键词： reduced graphene oxide,graphene,carbon-based nanomaterials,pulsed laser ablation
更新于2025-09-12 10:27:22
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Industrial Applications of Nanomaterials || Laser-driven nanomaterials and laser-enabled nanofabrication for industrial applications
摘要： Laser is one of the most important technologies invented in the 20th century. Nowadays, the applications of laser have stretched over a vast spectrum including information technology, optoelectronics, quantum computing, materials characterization, materials processing, advanced three-dimensional (3D) printing, biology, biomedical, etc. In the nanotechnology domain, laser can be used for synthesis, processing, and characterization. In this chapter, we will focus on applying laser for synthesis and processing of nanomaterials as well as nanofabrication.
关键词： nanofabrication,nanomaterials,laser ablation,laser pyrolysis,Laser,carbon-based nanomaterials,industrial applications
更新于2025-09-11 14:15:04
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Nanoscale Materials in Water Purification || Photocatalysis of Graphene and Carbon Nitride-Based Functional Carbon Quantum Dots
摘要： Day by day, global energy demands increase due to the rapid consumption of depleting fossil fuels and environmental pollution. This has led to the search for materials capable of both energy conversion and elimination of environmental pollutants through the aid of renewable solar energy. This is a promising approach for meeting future energy requirements and eliminating environmental pollutants. In this pursuit, semiconductor photocatalysts have immense potential for solving both energy and environmental issues. To date, numerous semiconductor materials have been explored, including those of metal oxides, chalcogenides, borates, titanates, tungstates, vanadates, zirconates, oxyhalides, and metal-based interstitial compounds. However, the majority of these suffer from limitations such as complex synthesis procedures, limited light absorption range due to their wide band gap, high cost, and toxicity-related issues. Over the past decade, carbon-based nanomaterials have gained attention in the field of photocatalysis. Many recent articles have placed emphasis upon metal-free carbon-based photocatalytic systems for degradation of organic pollutants and hydrogen production from water splitting. The prime merit of these nanomaterials is that they originate from naturally abundant constituent elements such as carbon, nitrogen, and oxygen, making them more economical than their metal-based counterparts. Most reported carbon-based photocatalysts have tunable band gap energies, enhancing their optical absorption range. Band gap energy can be tuned by varying synthesis conditions and precursors, resulting in the formation of nanomaterials with different morphologies. The preparation procedures for most carbon-based nanomaterials are less complex than those of metal-based materials.
关键词： water splitting,energy conversion,semiconductor photocatalysts,graphene,carbon nitride,quantum dots,carbon-based nanomaterials,hydrogen production,solar energy,environmental pollutants,photocatalysis
更新于2025-09-09 09:28:46