Textile sector is one of the major industries responsible for water pollution and the remediation of dyes is necessary to safe guard the water resources. Adsorption using nanoadsorbents have been emerged as one of viable techniques to eliminate the dyes from wastewater. Iron oxide was prepared via green route using Fan palm (F.P), Dombeya wallichii (D.W) and Pyrus comminis (P.C) as a reducing, capping and stabilizing agents. The adsorption of anionic dye using nanoadsorbents was studied and pH, adsorbent dose, contact time, temperature and concentration of dye were optimized. The maximum dye adsorption was achieved at pH 3, 0.01 g/50 mL adsorbent dose, 200 mg/L initial concentration at 65 °C. Thermodynamic study revealed that the adsorption on to nanoadsorbents was an endothermic process. Langmuir model and pseudo-second-order fitted well to the dye adsorption data. The presence of detergents and surfactants affected the dye adsorption on to nanoadsorbents. Efficient desorption was attained using 0.5 N sodium hydroxide. Results revealed that iron oxide prepared via green route is an efficient adsorbent for the removal of anionic dye and could possibly be used for the remediation of textile effluents.

纺织业是造成水污染的主要产业之一，为保护水资源，必须对染料进行补救。使用纳米吸附剂的吸附已经成为消除废水中染料的可行技术之一。使用扇形棕榈（FP），Dombeya wallichii（DW）和Pyrus comminis通过绿色路线制备氧化铁（PC）作为还原剂，封端剂和稳定剂。研究了纳米吸附剂对阴离子染料的吸附作用，并优化了pH，吸附剂用量，接触时间，温度和染料浓度。在pH 3、0.01 g / 50 mL吸附剂剂量，65°C初始浓度200 mg / L时达到最大染料吸附。热力学研究表明，纳米吸附剂的吸附是一个吸热过程。Langmuir模型和伪二阶很好地拟合了染料的吸附数据。洗涤剂和表面活性剂的存在影响染料吸附到纳米吸附剂上。使用0.5 N氢氧化钠可实现有效解吸。结果表明，通过绿色途径制备的氧化铁是一种有效的吸附剂，用于去除阴离子染料，并且可能被用于纺织品废水的修复。