Department of Chemistry, College of Education for Pure Science Ibn-Al-Haitham, University of Baghdad, Baghdad, Iraq.
Department of Chemistry, College of Art and Science, University of Saskatchewan, Saskatoon, Canada.
Int J Phytoremediation. 2024;26(5):639-668. doi: 10.1080/15226514.2023.2259989. Epub 2023 Oct 16.
Recently a large number of extensive studies have amassed that describe the removal of dyes from water and wastewater using natural adsorbents and modified materials. Methyl orange dye is found in wastewater streams from various industries that include textiles, plastics, printing and paper among other sources. This article reviews methyl orange adsorption onto natural and modified materials. Despite many techniques available, adsorption stands out for efficient water and wastewater treatment for its ease of operation, flexibility and large-scale removal of colorants. It also has a significant potential for regeneration recovery and recycling of adsorbents in comparison to other water treatment methods. The adsorbents described herein were classified into five categories based on their chemical composition: bio-sorbents, activated carbon, biochar, clays and minerals, and composites. In this review article, we want to demonstrate the capacity of natural and modified materials for dye adsorption which can yield significant improvements to the adsorption capacity of dyes such as methyl orange. In addition, the effect of critical variables including contact time, initial methyl orange concentration, dosage of adsorbent, pH, temperature and mechanism on the adsorption efficiency will be covered as part of this literature review.
最近,大量广泛的研究积累了描述使用天然吸附剂和改性材料从水中和废水中去除染料的方法。甲基橙染料存在于各种工业的废水中,包括纺织、塑料、印刷和造纸等来源。本文综述了甲基橙在天然和改性材料上的吸附。尽管有许多技术可用,但吸附因其操作简便、灵活以及能够大规模去除着色剂而在水和废水处理方面脱颖而出。与其他水处理方法相比,它在吸附剂的再生回收和再循环方面也具有显著的潜力。本文所述的吸附剂根据其化学成分分为五类:生物吸附剂、活性炭、生物炭、粘土和矿物质以及复合材料。在这篇综述文章中,我们希望展示天然和改性材料对染料吸附的能力,这可以显著提高染料如甲基橙的吸附能力。此外,本文还将涵盖接触时间、甲基橙初始浓度、吸附剂用量、pH 值、温度和机制等关键变量对吸附效率的影响。
Int J Phytoremediation. 2024
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