Adsorption of methylene blue onto sugarcane bagasse-based adsorbent materials,Journal of Physical Organic Chemistry

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Adsorption of methylene blue onto sugarcane bagasse-based adsorbent materials
Journal of Physical Organic Chemistry ( IF 1.9 ) Pub Date : 2021-02-02 , DOI: 10.1002/poc.4193
Kamal Al‐Mokhalelati ₁ , Iman Al‐Bakri ₁ , Nesrin Al Shibeh Al Wattar ₁

Affiliation

Sugarcane bagasse (SB) before and after alkaline treatment has been investigated for the removal of methylene blue (MB) from aqueous solutions. The results showed that the adsorption was chemical in nature and the OH, C=O, and C–O groups were particularly responsible for MB dye adsorption. The optimum concentration of MB solution was fixed at 0.1 gr/50 mL in both treated and untreated SB. Batch adsorption studies are used to derive the optimum adsorption conditions. A contact time of 90 min, a pH range from 5 to 9, a dose of 0.1 g, and an initial concentration of the MB of 100 ppm were chosen. The amount of adsorbed MB dye on the surface of the SB was temperature dependent, and the adsorption increases with increasing temperature. The values of ΔH°, ΔG°, and ΔS° indicated endothermic but spontaneous process. The overall results indicated that SB was a promising candidate for dye removals.

中文翻译：

亚甲基蓝在甘蔗渣基吸附材料上的吸附

已经研究了碱处理前后的甘蔗渣(SB) 从水溶液中去除亚甲蓝 (MB)。结果表明，吸附本质上是化学性质的，并且 OH、C=O 和 C-O 基团对 MB 染料吸附特别负责。在处理和未处理的 SB 中，MB 溶液的最佳浓度固定为 0.1 克/50 毫升。批量吸附研究用于推导出最佳吸附条件。选择了 90 分钟的接触时间、5 到 9 的 pH 值范围、0.1 克的剂量和 100 ppm 的 MB 初始浓度。SB表面吸附的 MB 染料量与温度有关，吸附量随温度升高而增加。Δ的值ħ °，Δ ģ° 和 Δ S ° 表示吸热但自发的过程。总体结果表明SB是去除染料的有希望的候选者。

更新日期：2021-02-02

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