Chemical Synthesis of Nano-sized Particles of Lead Oxide and their Characterization Studies

Alagar, M.; Thirugnanasambandan, Theivasanthi; Raja, Arul

doi:10.3923/jas.2012.398.401

Cited by 36 publications

(16 citation statements)

References 10 publications

(2 reference statements)

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“…The wave numbers (cm -1 ) of dominant peaks obtained from absorption spectrum are presented in Table 17. The absorption peak at 462.86 cm -1 indicates the presence of lead [55]. The observed wave numbers for amines, amides and amino acids indicate the presence of protein [56].…”

Section: Ft-ir Analyses Of Pb Nanorodsmentioning

confidence: 96%

Konjac Bio-Molecules Assisted – Rod / Spherical shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Thirugnanasambandan¹,

Alagar²

2013

Nano BioMed ENG

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Synthesis and structural characterization of Pb nanoparticles by electrolysis using a bioactive compound -konjac aqueous extract is the main aim of this study. This method is a unique, novel, low cost and double-step procedure with good reproducibility and has not been used for nanoparticles preparation so far. Konjac extract has been added to prevent the oxidation of Pb nanoparticles. Also the synthesized nanoparticles have been dried in open air to observe their stability. Various types of characterization tools like XRD, SEM, Particle Size Analyzer, TEM-EDS, DSC, AAS and FT-IR have been utilized to study characters of the end product. Anti-bacterial Studies has also been done. After completion of synthesis process that we have made an attempt to change the shape of the synthesized nanoparticles by the influence of sunbeams and to find the effects of the sunlight on nanomaterials.Amorphophallus campanulatus (Roxb.) Blume. ex Decne (Synonym : Amorphophallus paeoniifolius; Araceae) commonly known as Konjac is a tuberous, stout, indigenous herb, 1.0-1.5 m in height. The tubers contain an active enzyme amylase, amino acids, carbohydrates, saponin. Antioxidants are chemical substances that donate electron. The aqueous extract of A.campanulatus tuber has more significant antioxidant activity and more reducing power as compared to methanol extract [22]. 46.33 mg g -1 of flavonoidal content, 12.67 mg g -1 of phenolic contents and tannins are present in the air dried powder of A.campanulatus tubers [23].Konjac has listed as one of the top ten healthiest foods by World Health Organization (WHO). It is highly nutritious, with over 45% of Glucomannan, 9.7% of crude protein, 16 different kinds of amino acids up to 7.8%, 7 essential amino acids up to 2.5% , low fat and high in fiber. Glucose fructose and sucrose are also present in konjac. Glucomannan is a water-soluble dietary fiber and it is a polysaccharide (hemicelluloses) straight-chain polymer, with a small amount of branching. It is a high-molecular compound and a super absorbent; its size expands by 80-100xs after absorbing water. 30% to 40% of total production of flying powder is produced from konjac tuber. The Konjac flying powder is a polyol (natural polymer). It is used in precipitation of soluble heavy metal ions in wastewater.Lead nanostructures are attractive materials for its potential applications in lead batteries, catalysis, superconductor [24] and photonic crystal [25]. Earlier study reports that hexagon and flower shaped lead oxide (PbO 2 ) are the end product in electrolysis process (anodic oxidation of lead) using lead sheet as anode and distilled water (with very low ionic conductivity _ 6-10 µS/m and pH=6.5) as electrolyte [26].It is known that Pb nanoparticles are highly reactive and transfer electron to N 2 O, O 2 , etc. [27].

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Section: Ft-ir Analyses Of Pb Nanorodsmentioning

confidence: 96%

Konjac Bio-Molecules Assisted – Rod / Spherical shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Thirugnanasambandan¹,

Alagar²

2013

Nano BioMed ENG

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“…Lead nanoparticles may be synthetized by three different methods, namely, physical, chemical, and green (biological) methods. Recently, several new routes of synthesis of PbO nanostructures have been used, such as chemical synthesis [23], calcination [24], sol-gel pyrolysis [25,26], anodic oxidation [27], solvothermal method [16,28,29], thermal decomposition [30][31][32], chemical deposition [33], microwave irradiation technique [34], and green method [35].…”

Section: Synthesismentioning

confidence: 99%

“…Alagar et al [23] have synthesized lead oxide (PbO) semiconductor nanoparticles by chemical synthesis. During this synthesis, they prepared 1 M aqueous solution of Pb(C 2 H 3 O 2 ) 2.3 H 2 O in deionized water and heated up to 90°C.…”

Section: Chemical Synthesis Of Lead Oxide Nanoparticlesmentioning

confidence: 99%

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Synthesis, Characterization, Applications, and Toxicity of Lead Oxide Nanoparticles

Bratovčić¹

2020

Lead Chemistry

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Over the past few years, the interest of material scientists for metal and metal oxide nanoparticles (NPs) is increasing dramatically because of their unique physicochemical characteristics such as catalytic activity and optical, electronic, antibacterial, and magnetic properties which depend on their size, shape, and chemical surroundings. Recently, several new routes of synthesis of lead monoxide (PbO) nanoparticles have been used, such as chemical synthesis, calcination, sol-gel pyrolysis, anodic oxidation, solvothermal method, thermal decomposition, chemical deposition, laser ablation, and green methods. Essentially, for the structural characterization of lead oxide nanoparticles, several spectroscopic, microscopic, and thermogravimetric methods of analysis are used. Lead oxide has been widely utilized in batteries, gas sensors, pigments, ceramics, and glass industry. Furthermore, lead oxide nanoparticles are graded as toxic and dangerous for the human health and environment. Therefore, there is an urgent need to develop new approaches and standardized test procedures to study the potential hazardous effect of nanoparticles on the human health and environment. The aim of this chapter is to provide an overview of the recent trends in synthesis of lead oxide nanoparticles, their characterization, possible applications, and toxicity.

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“…As shown in Figure 7B, the FITR of all BPO-DDAS-CsPbBr 3 NCs showed a new absorption peak at 1,023 cm −1 compared to CsPbBr 3 NCs and DDAS-CsPbBr 3 NCs, corresponding to the vibration mode of Pb-O (Alagar et al, 2012;Nouri et al, 2017). It is indicated that PbO is formed on the surface of DDAS-CsPbBr 3 NCs after BPO oxidation, which resists the corrosion of water vapor and oxygen to quantum dots, giving the CsPbBr 3 NCs the excellent photostability.…”

Section: Characterization Of Bpo-ddas-cspbbr 3 Ncsmentioning

confidence: 89%

Improving the Stability of CsPbBr3 Perovskite Nanocrystals by Peroxides Post-treatment

Liu

Zheng

et al. 2019

Front. Mater.

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Metal oxides exhibit excellent barrier properties against moisture and oxygen, which are regarded as the powerful candidate for boosting the stability of perovskite nanocrystals (NCs). Here, we develop a simple method to coat perovskite NCs with PbO by peroxides post-treatment. Firstly, the didodecyl dimethyl ammonium sulfide (DDAS) was used to modify the CsPbBr 3 NCs (DDAS-CsPbBr 3 ), and then sequentially treated with benzoyl peroxide (BPO). By this way, the self-metal source (lead) can be easily oxidized, leading to the quick growth of lead oxide (PbO) on the surface of individual CsPbBr 3 NCs. Under illumination with a 450 nm LED light (175 mW/cm 2 ), the PbO coated CsPbBr 3 NCs maintained at ∼90% of the initial intensity for 20 h of operations; in contrast, the emission from the CsPbBr 3 NCs completely quenched.

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Chemical Synthesis of Nano-sized Particles of Lead Oxide and their Characterization Studies

Cited by 36 publications

References 10 publications

Konjac Bio-Molecules Assisted – Rod / Spherical shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Konjac Bio-Molecules Assisted – Rod / Spherical shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Synthesis, Characterization, Applications, and Toxicity of Lead Oxide Nanoparticles

Improving the Stability of CsPbBr3 Perovskite Nanocrystals by Peroxides Post-treatment

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