交联珠状活化油棕灰沸石/壳聚糖复合材料作为一种生物吸附剂，用于去除亚甲蓝和酸性蓝 29 染料。
Cross-linked beads of activated oil palm ash zeolite/chitosan composite as a bio-adsorbent for the removal of methylene blue and acid blue 29 dyes.
机构信息
School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia.
出版信息
Int J Biol Macromol. 2017 Feb;95:895-902. doi: 10.1016/j.ijbiomac.2016.10.075. Epub 2016 Oct 24.
Cross-linked beads of activated oil palm ash zeolite/chitosan (Z-AC/C) composite were prepared through the hydrothermal treatment of NaOH activated oil palm ash followed by beading with chitosan. The effects of initial dye concentration (50-400mg/L), temperature (30°C-50°C) and pH (3-13) on batch adsorption of methylene blue (MB) and acid blue 29 (AB29) were studied. Adsorption of both dyes was better described by Pseudo-second-order kinetics and Freundlich isotherm model. The maximum adsorption capacities of Z-AC/C were 151.51, 169.49, and 199.20mg/g for MB and 212.76, 238.09, and 270.27mg/g for AB29 at 30°C, 40°C, and 50°C, respectively.
交联珠状的活性油棕灰沸石/壳聚糖（Z-AC/C）复合材料是通过 NaOH 活化油棕灰的水热处理，然后与壳聚糖珠化制备而成。研究了初始染料浓度（50-400mg/L）、温度（30°C-50°C）和 pH 值（3-13）对亚甲蓝（MB）和酸性蓝 29（AB29）的批式吸附的影响。两种染料的吸附均较好地符合准二级动力学和 Freundlich 等温模型。在 30°C、40°C 和 50°C 下，Z-AC/C 对 MB 的最大吸附容量分别为 151.51、169.49 和 199.20mg/g，对 AB29 的最大吸附容量分别为 212.76、238.09 和 270.27mg/g。
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