Review Article
Advancement in Carbon Nanoparticle Synthesis and Their Application: A Comprehensive Review
Vanshika Sharma*,
Vandita Soni
Issue:
Volume 12, Issue 1, March 2024
Pages:
1-14
Received:
30 January 2024
Accepted:
18 February 2024
Published:
29 April 2024
Abstract: The global population gradually increase at an alarming state, which would increase demand for food globally. This increasing use of pesticides and fertilizers. In order to meet this demand, an overview of the numerous applications of nanotechnology for agriculture. Various nanomaterials like nanofertilizers and pesticides enhance soil fertility and crop productivity. However, excessive chemical fertilizer use as per FAO, 2017. Among these, the nanotechnology has wide range of applications in healthcare and medicines, diagnosis etc. Recently, carbon nanoparticles (CNPs) play a significant role in various fields. Carbon nanoparticles (CNPs) represent innovative nanostructures. These can be synthesized by different methods, green synthesis as well as chemical synthesis such as arch discharge method, laser ablation method, chemical vapour deposition method etc. The advancement of CNPs entails the exploration of diverse synthetic techniques and exploration of various application due to their chemical and physical properties in healthcare, agriculture (for delivery of agrochemicals) etc. These are also used in plant growth enhancement and resistance to stresses. However, challenges related to precisely defining CNP structures and ensuring property uniformity remain inadequately addressed and lack detailed study. In this review article we emphasize methodologies for the synthesis of CNPs by various chemical methods and also include their applications in therapeutics, pharmaceuticles, sensing and agriculture.
Abstract: The global population gradually increase at an alarming state, which would increase demand for food globally. This increasing use of pesticides and fertilizers. In order to meet this demand, an overview of the numerous applications of nanotechnology for agriculture. Various nanomaterials like nanofertilizers and pesticides enhance soil fertility an...
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Research Article
Biogenically Synthesized ZnO and Cu-Doped ZnO Nanoparticles: Effect of Cu-Dopent Concentration and Annealing on Morphology and Optical Properties
Issue:
Volume 12, Issue 1, March 2024
Pages:
15-22
Received:
23 June 2024
Accepted:
11 July 2024
Published:
29 July 2024
Abstract: In this work, ZnO nanoparticles and Cu-doped ZnO nanoparticles were biogenically synthesized using precipitation method in Cissus quadrangularis plant extract medium. The influence of Cu dopant on the crystalline structure, optical properties, and morphology of ZnO was investigated. The samples were characterized by XRD, FTIR, UV–vis spectroscopy and SEM. XRD patterns confirmed the wurtzite formation of doped and undoped ZnO nanoparticles. The average crystallite size of the neat and Cu-doped samples was ~18 nm irrespective of the amount of dopant. The annealing process enhanced the size of both the neat and Cu-doped samples. However, the influence on the size is less prominent in the Cu-doped sample than in the neat sample. The UV-visible spectral analysis shows that all the synthesized doped and undoped nano zinc oxides absorb at ~400nm. The band gap energy of Cu-doped ZnO particles was greater for unannealed samples whereas it was appreciably lowered on annealing for Cu-doped samples. SEM analysis shows rod-like morphology for the unannealed and annealed undoped zinc oxides. It is changed to flower-like morphology with the addition of 5mM Cu2+ and then to nano sheet-like structure with the incorporation of higher amount of Cu2+ ions. Annealing of zinc oxide samples leads to the smoothening of the surfaces with a change in morphology for the ZnO nanoparticles.
Abstract: In this work, ZnO nanoparticles and Cu-doped ZnO nanoparticles were biogenically synthesized using precipitation method in Cissus quadrangularis plant extract medium. The influence of Cu dopant on the crystalline structure, optical properties, and morphology of ZnO was investigated. The samples were characterized by XRD, FTIR, UV–vis spectroscopy a...
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,
Rethikala Pandikkappallil Kumaran
