Adsorption of Crystal Violet Dye from Aqueous Solution using Industrial Pepper Seed Spent: Equilibrium, Thermodynamic, and Kinetic Studies
نویسندگان
چکیده
The economic viability of adsorbing crystal violet (CV) using pepper seed spent (PSS) as a biosorbent in an aqueous solution has been studied. A parametrical investigation was conducted considering parameters like initial concentration dye, time contact, pH value, and temperature variation. analysis experimental data obtained carried out by evaluating with the isotherms Freundlich, Sips, Tempkin, Jovanovic, Brouers–Sotolongo, Toth, Vieth–Sladek, Radke–Prausnitz, Langmuir, Redlich–Peterson. adsorption kinetics were studied implementing Dumwald-Wagner, Weber-Morris, pseudo-first-order, pseudo-second-order, film diffusion, Avrami models. value capacity ( Q m = 129.4 mg g − 1 ) observed to be quite close Jovanovic isotherm id="M2"> 82.24 at id="M3"> R 2 ), coefficient correlation 0.945. validation found conform that pseudo-second-order kinetic process specified spontaneous endothermic owing thermodynamic values id="M4"> Δ G 0 , id="M5"> H id="M6"> S . id="M7"> is indicator process’s physical nature. CV PSS authenticated from infrared spectroscopy scanning electron microscopy images. interactions CV-PSS system have discussed, observations noted suggest feasible adsorbent extract solution.
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ژورنال
عنوان ژورنال: Adsorption Science & Technology
سال: 2022
ISSN: ['2048-4038', '0263-6174']
DOI: https://doi.org/10.1155/2022/9009214