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首页> 外文期刊>Journal of Wood Chemistry and Technology >Application of Polythiophene-Sawdust Nano-Biocomposite for Basic Dye Removal Using a Continuous System
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Application of Polythiophene-Sawdust Nano-Biocomposite for Basic Dye Removal Using a Continuous System

机译：聚噻吩-木屑纳米生物复合材料在连续系统基础染料去除中的应用

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摘要

A novel dye adsorbent was developed by a poly (3-methyl thiophene) nano layer coated onto sawdust obtained from Narra wood. The polymer was synthesized chemically under in-situ conditions on the surface of the sawdust. Methylene blue, a typical cationic textile dye, was employed as a test probe for adsorption experiments. The experiments were conducted in both batch and fixed-bed column systems. The effects of variables such as pH, initial dye concentration, flow rate, and bed height were investigated. The Thomas dynamic model was applied to calculate the sorption capacity of adsorbents. Based on the breakthrough curves analysis, the highest column capacity of 191 mg/g was obtained. The introduced nano-biocomposite was found to be more than seven times more efficient than unmodified sawdust for methylene blue removal. The regeneration of the modified sawdust is quite possible using 0.10 M HCl in ethanol as a washing solution with high efficiency.
机译：通过涂覆在从纳拉木材获得的锯末上的聚（3-甲基噻吩）纳米层，开发了新型染料吸附剂。该聚合物是在木屑表面上原位化学合成的。亚甲基蓝，一种典型的阳离子纺织染料，被用作吸附实验的测试探针。实验在分批和固定床色谱柱系统中进行。研究了诸如pH，初始染料浓度，流速和床高等变量的影响。采用托马斯动力学模型计算吸附剂的吸附能力。根据穿透曲线分析，获得的最高色谱柱容量为191 mg / g。发现引入的纳米生物复合材料比未改性的木屑去除亚甲蓝的效率高七倍以上。使用乙醇中的0.10 M HCl作为洗涤液，可以高效地再生改性木屑。

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