Research Article
Preparation and Characterization of Aloe Vera Extract Capped CdS Nanoparticles and Their Photocatalytic, Luminescence and Optical Studies
Issue:
Volume 15, Issue 1, March 2026
Pages:
1-13
Received:
24 December 2025
Accepted:
12 January 2026
Published:
2 February 2026
Abstract: Green synthesis method is used to prepare the Cadmium Sulphide Nanoparticles (CdS NPs) using various cadmium salts. CdS NPs are prepared by using the Cadmium Chloride, Cadmium Nitrate along with Cadmium Sulphate additionally Sodium Sulphide as precursors and Aloe vera leaf gel extract is used as stabilizing agent. The materials are characterized by X-ray Diffraction (XRD) technique to know its structure. The XRD trends display broad peaks at 2θ values of around 26.38˚, 29.84˚, 44.42˚, 51.96˚ and 71.14˚ which could be indexed to scattering from (111), (200), (220), (311) and (331) planes of cubic phase respectively of Cadmium Sulphide. The Band gap of the sample is found from UV-Visible absorbance spectroscopy and its value determined as 5.04 eV, 5.18 and 5.09 eV for the precursors cadmium chloride, cadmium nitrate and cadmium sulphate respectively apart from this cadmium sulphate precursor shows 3.58 eV that means there are two size distribution of NPs formed for cadmium sulphate precursor. Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM) as well as Energy Dispersive Spectroscopy (EDS) techniques are employed to know the functional groups, morphology and elemental analysis of the as synthesized material. The average particle size of CdS NPs determined from TEM is around 3 nm for all the precursors and it is further confirmed by Small Angle X-ray Scattering (SAXS).
Abstract: Green synthesis method is used to prepare the Cadmium Sulphide Nanoparticles (CdS NPs) using various cadmium salts. CdS NPs are prepared by using the Cadmium Chloride, Cadmium Nitrate along with Cadmium Sulphate additionally Sodium Sulphide as precursors and Aloe vera leaf gel extract is used as stabilizing agent. The materials are characterized by...
Show More
Research Article
Optimization of Tungsten Inert Gas Welding Process on the Tensile Properties of Dissimilar Metal Using Taguchi Method
Noutegomo Boris*
Issue:
Volume 15, Issue 1, March 2026
Pages:
14-26
Received:
5 February 2026
Accepted:
24 February 2026
Published:
2 April 2026
DOI:
10.11648/j.am.20261501.12
Downloads:
Views:
Abstract: Tungsten inert gas (TIG) welding also known as Gas Tungsten arc welding (GTAW) is a popular choice of welding process when high level of weld quality is required. In present investigation, TIG welding is observed using Taguchi L9 orthogonal method on the dissimilar Stainless Steel 304 and aluminum 2000. The two metals where butt joined using two filler metals joined simultaneously. The selected input parameters were Current, Voltage and Gas flow rate. Three levels of factors were chosen according to the previous works done on those materials. Further the mechanical testing was performed and ultimate tensile stress was studied as response. The different specimen have the same behavior describe as elastic material. The best stress at break of the joint was 9.525MPa which was very low compare to the ones of the aluminum and stainless steel works. That experimental stress was slightly higher than Predicted stress 8.89 MPa confirming the validity of the optimal setting.
Abstract: Tungsten inert gas (TIG) welding also known as Gas Tungsten arc welding (GTAW) is a popular choice of welding process when high level of weld quality is required. In present investigation, TIG welding is observed using Taguchi L9 orthogonal method on the dissimilar Stainless Steel 304 and aluminum 2000. The two metals where butt joined using two fi...
Show More
