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首页> 外文期刊>RSC Advances >Polythiophene functionalized hydrophobic cellulose kitchen wipe sponge and cellulose fabric for effective oil–water separation
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Polythiophene functionalized hydrophobic cellulose kitchen wipe sponge and cellulose fabric for effective oil–water separation

机译：聚噻吩功能化疏水性纤维素厨房擦拭海绵和纤维素织物，可有效分离油水

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摘要

Development of efficient materials for the separation of oils/organic solvents from water is of prime ecological importance as their negative impact on the aquatic environment is huge. In the present work, for the first time we report the utilization of biodegradable cellulose kitchen wipe sponge as a base material for the oil sorption and cellulose fabric as a filter for the filtration of oil, after functionalization with polythiophene. The water contact angles of the modified cellulose sponge and modified cellulose fabric being 126.6° and 151.6°, respectively substantiate the hydrophobic nature of the materials post modification. Oil absorption kinetic studies show a very rapid saturation period (90 min) for the modified cellulose sponge with a maximum absorption capacity of 7.5 g g?1. By a simple mechanical squeezing process, the absorbed oil/organic solvent is recycled. The sponge is reused for 5 cycles with 70% retention in the initial absorption efficiency. On the other hand, the modified cellulose fabric is used as a continuous filter for a quick separation of oil (and organic solvents) from water. The oil sorbents reported make use of readily available and economically viable base materials with a simple modification which may allow their use for the removal of oil on large scales.
机译：开发用于从水中分离油/有机溶剂的高效材料具有重要的生态重要性，因为它们对水生环境的负面影响巨大。在目前的工作中，我们首次报道了在用聚噻吩官能化后，可生物降解的纤维素厨房擦拭海绵作为吸油的基础材料，而纤维素织物作为滤油的过滤器的利用。改性纤维素海绵和改性纤维素织物的水接触角分别为126.6°和151.6°，证实了改性后材料的疏水性。吸油动力学研究表明，改性纤维素海绵的饱和期非常快（90分钟），最大吸收容量为7.5 g g ？1 。通过简单的机械挤压过程，吸收的油/有机溶剂被循环利用。海绵可重复使用5次，初始吸收效率保持70％。另一方面，改性纤维素织物用作连续过滤器，用于快速将油（和有机溶剂）从水中分离出来。所报道的吸油剂利用易于获得且经济可行的基础材料，并进行了简单的改性，使其可以用于大规模去除油。

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