• PINKI RANI
• Dr, HEENA DAHIYA
• Dr. SHIKHA GOVIL

Abstract: The present study investigates the potential of wheat bran as an effective biosorbent for the removal of Basic Violet 14 and Direct Yellow 12 dyes from aqueous solutions. The adsorbent was characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and UV-Vis absorption spectroscopy to analyze its structural and surface properties. A series of batch adsorption experiments were conducted to evaluate the effects of key operational parameters, including initial dye concentration, contact time, solution pH, adsorbent dosage, and temperature, on adsorption efficiency. Kinetic modeling using pseudo-first-order and pseudo-second-order equations revealed that the adsorption process followed the pseudo-second-order model, suggesting chemisorption as the dominant mechanism. Equilibrium studies demonstrated that the adsorption behavior was well described by both Langmuir and Freundlich isotherms, indicating the coexistence of monolayer and multilayer adsorption. Thermodynamic analysis confirmed the spontaneous and endothermic nature of the adsorption process, with adsorption efficiency increasing at higher temperatures. The maximum adsorption capacities identified in this study highlight wheat bran’s potential as a cost-effective, renewable, and efficient biosorbent for dye removal. These findings reinforce the viability of agricultural by-products as sustainable materials for wastewater treatment, offering an eco-friendly approach to mitigating industrial dye pollution.

Adsorption, Basic Violet 14, Direct Yellow 12, Wheat Bran, Isotherm, Kinetics, Thermodynamics

"Adsorption Studies of Basic Violet 14 and Direct Yellow 12 Dye Removals from Textile Wastewater Using Wheat Bran Adsorbent", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 3, page no.f12-f31, March-2025, Available :http://www.jetir.org/papers/JETIR2503526.pdf

"Adsorption Studies of Basic Violet 14 and Direct Yellow 12 Dye Removals from Textile Wastewater Using Wheat Bran Adsorbent", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 3, page no. ppf12-f31, March-2025, Available at : http://www.jetir.org/papers/JETIR2503526.pdf