Application of triazole functionalized cellulose nanowhisker for dye adsorption from wastewater

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ISOC27_373

تاریخ نمایه سازی: 19 اسفند 1399

Abstract:

Nowadays, water pollution control has become one of the major environmental problems. The discharge of dye-contained wastewaters into ecosystem is a dramatic source of aesthetic pollution, eutrophication and perturbation in aquatic life as most of dyes are highly visible, stable and unaffected to chemical, photochemical as well as biological degradation.1,2 A wide range of chemical and physical treatment technologies are available for dyes removal with different degree of accomplishment to minimize water contamination. However, the shortcomings of most of these methods are high operational and maintenance costs, generation of toxic sludge and complex procedure involved in the treatment.3,4 Cellulose is one of the most abundant and significant fibrous material in nature which has high mechanical strength, high surface area, biodegradability, non-toxicity, and low cost.5 In this study, the ability of triazole functionalized cellulose nanowhisker as adsorbents for the removal of the dyes from aqueous solutions was studied(Fig.1). The effect of factors affecting the absorption process such as pH, contact time, adsorbent dosage and temperature were examined. The equilibrium, kinetics, and thermodynamics of the adsorption process were also studied. The adsorption behavior of prepared adsorbents matches well with the pseudo-second-order model and Langmuir adsorption isotherm model.

Authors

Atefeh yousefvand

Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad, Iran

Abbas Dadkhah Tehrani

Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad, Iran