S. Das

• M.Sc , M.Phil , Ph.D
• Professor (Assistant) at CMR Institute of Technology

A comparative study on the structure and photocatalytic activity of halo-aggregated and differently connected ZrO2@TiO2 and TiO2@ZrO2 nanocomposites was investigated here towards photodegradation of Alizarin yellow GG model azo dye. The nanocomposites were synthesized by two-step sol-gel method with predominant monoclinic phase for ZrO2, anatase ph...

Equimolar TiO2-ZrO2 nanocomposite was prepared by sol–gel method with predominant tetragonal phase for zirconia and investigated for photodegradation of Alizarin Yellow GG dye under natural sunlight. Interfacial contacts enabling Zr-O-Ti bonding with preferred orientation of (1 0 1)TiO2//(1 0 1)ZrO2 were seen at heterojunctions, and partial Zr⁴⁺ su...

We report the formation of almond鄄shaped carbon nanoparticles (ASCNs) from peeled potatoes and the fabrication of a highly sensitive and a selective non enzymatic sucrose sensor based on this carbon nanoparticle electrode. The potato was pyrolyzed initially at 400鄄500 益 in vacuum, followed by slow heating at around 800 益 , which produces the ASCNs....

Among the many potential applications of carbon nanotubes (CNT), its usage to strengthen polymers has been paid considerable attention due to the exceptional stiffness, excellent strength and the low density. This has provided numerous opportunities for the invention of new material systems for applications requiring high strength and high modulus....

A carbon nanosphere electrode (CN) has been fabricated for the electrochemical detection of l-serine and l-phenylalanine. Electrochemical behavior of amino acids was investigated using cyclic voltammetry, differential pulse voltammetry, square wave voltammetry and linear sweep voltammetry. In optimal conditions, the peak current of both amino acids...

In this work, carbon nano sheet (CNS) based electrode was designed for electrochemical biosensing of glucose. CNS has been obtained by the pyrolysis of barley at 600–750 °C in a muffle furnace, which was then purified and functionalized. The CNS has been characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman spectros...

A nonenzymatic cholesterol biosensor was fabricated at the surface of carbon nanotube electrode (CCNT), obtained from coconut oil. The voltammetric behavior of cholesterol at CCNT electrode was investigated by cyclic voltammetry and differential pulse voltammetry in the presence of 0.001 M H2SO4 as electrolyte. The influence of the experimental par...

The electrochemical analysis of glucose with high selectivity and sensitivity without using enzymes is one of the dream that many researchers have been trying to make come true. In this paper, a low cost carbon nanotubes (CCNTs) based electrode was designed for electrochemical biosensing of glucose. CCNTs have been prepared by burning coconut oil u...

Zinc oxide was synthesized from zinc sulphate using different reducing agents under microwave irradiation. The influence of sodium borohydride, hydrazine hydrate and urea on the shape and size of the products were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). SEM showed the nano-sized spherical and rectangular shap...

The need for a more rapid, reliable, specific, and sensitive non enzymatic method of detecting of glucose, at low cost is the focus of this work. In this paper, nanoparticles obtained from rice starch (RSNP) have been used to fabricate an electrode for electrochemical detection of glucose. The voltammetric behaviour of glucose on RSNP electrode was...

Abstract — Bamboo naturally acts as an antibacterial and antifungal agent and is capable of absorbing chlorine, bad odor and toxic substances from water as well as it also replaces with healthy minerals like sodium, potassium and iron transforming ordinary water into mineral water. In this paper, nanosphere was prepared by carbonizing pieces of bam...

Bamboo naturally acts as an antibacterial and antifungal agent and is capable of absorbing chlorine, bad odor and toxic substances from water as well as it also replaces with healthy minerals like sodium, potassium and iron transforming ordinary water into mineral water. In this paper, nanosphere was prepared by carbonizing pieces of bamboo in muff...

It has been found that multiwalled carbon nanotubes (CS-CNT) can be produced in mass level, simply by pyrolysing mustard oil which was then derivatized with carboxylic acid (CS-CNT (acid)) and ammonia (CS-CNT (base)). A low cost electrode was fabricated on Teflon substrate with three silver wires which was coated with different types of carbon nano...

Specific capacitances of a low-cost multiwalled carbon nanotubes produced in mass level by pyrolysing mustard oil, are being evaluated by means of cyclic voltammetry in 1M solution of various electrolytes. The carbon nanotubes with an average diameter of 30 nm have been functionalized and dispersed in polystyrene matrix to obtain thin film of the e...