Effective removal of malachite green from local dyeing wastewater using zinc-tungstate based materials
نویسندگان
چکیده
The frequent use of an industrial dye such as malachite green (MG) has caused major water body deterioration and is one the most pressing global challenges, demanding effective treatment techniques. To solve these issues, a simplistic method was developed to synthesize zinc-tungstate (ZnWO4) nanoparticles also dope surface matrix ZnWO4 using nonmetals boron (B), carbon (C), nitrogen (N) at different ratios for enhanced MG removal from wastewater. prepared nanomaterials were characterized by methods crystal structure composition, properties, morphology, microstructures, functional groups, elemental oxidation states. BET analysis revealed mesoporous with areas 30.740 m2/g ZnWO4, 38.513 ZnWO4@BCN, 37.368 ZnWO4@BCN/B, 39.325 ZnWO4@BCN/C, 45.436 ZnWO4@BCN/N nanocomposites. best accomplished pH (8), contact period (50 min), nanoadsorbent dose (0.8 g/L), initial concentration (20 mg/L), temperature (303 K). maximum adsorption capacities towards 218.645 251.758 mg/g, respectively. At equilibrium, Freundlich isotherm pseudo-second-order kinetic models fits experimental data on both nanoadsorbents. After eight cycles desorption, found be good removing MG, efficiencies 71.00 74.20%, Thermodynamic investigations further validated spontaneity endothermic nature process. All study findings confirm nanoadsorbents exceptional capability economic feasibility dye.
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ژورنال
عنوان ژورنال: Heliyon
سال: 2023
ISSN: ['2405-8440']
DOI: https://doi.org/10.1016/j.heliyon.2023.e19167