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Isolation of nanocellulose from oil palm empty fruit bunches using strong acid hydrolysis

机译:用强酸水解将纳米纤维素分离纳米纤维素

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Cellulose nanocrystals (CNC) has attracted a remarkable level of attention as a potential functional nanomaterial for various applications due to the exceptional mechanical properties, ease of modified surface functionality, low density in addition to their abundance and renewable resources. This study is aimed to isolate CNC from abundantly available oil palm empty fruit bunches (OPEFB) which consists of a complete series of pretreatment, purification and isolation of the pretreated cellulose. In this study, cellulose was firstly isolated from OPEFB using alkaline and bleached with NaClO2 to obtain highly content of cellulose. The bleached cellulose was then hydrolysed using sulfuric acid 97% with solid/liquid ratio of 1:80 at 50 °C for 3.5 hours to get CNC. The morphology of the CNC was characterized using TEM. Rod-like CNC was successfully derived from this study with diameter and length dimension of 43 ± 8 nm and 147 ± 23 nm. Analysis from TEM-SAED revealed that the CNC formed single crystalline with crystallinity index of 96%.
机译:纤维素纳米晶体(CNC)由于卓越的机械性能,易于改良的表面功能,易于改性的表面功能,除了它们丰富和可再生资源之外,由于具有卓越的机械性能,易于改良的表面功能,低密度而引起了显着的关注水平的官能纳米材料。本研究旨在将CNC从丰富的油棕空果束(OPEFB)中脱颖而出,该液体束(OPEFB)由预处理纤维素的完整预处理,纯化和分离组成。在该研究中,首先使用碱性从蛋白石中分离纤维素并用NaClO 2漂白以获得高度含量的纤维素。然后使用硫酸97%将漂白的纤维素用5:80在50℃下用固体/液体比水解3.5小时以获得CNC。使用TEM表征CNC的形态。类似于该研究的棒状CNC,直径和长度尺寸为43±8nm和147±23nm。从TEM-SAED分析显示,CNC形成单晶,结晶性指数为96%。

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