Extraction of Micro, Nanocrystalline Cellulose and Textile Fibers from Coffee Waste

Geyandraprasath Karunakaran, Aravin Prince Periyasamy, Ali Tehrani

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

Because of the environmental footprint of oil-based materials, the demand for bio-based renewable materials is hiked. The usage of agricultural waste to extract cellulose, minimized the dependent of hydrocarbon products which is an added value besides due to overpopulation the productivity is increased, which leads to an increase in agricultural waste that causes environmental pollution. In this work, various cellulosic materials, such as cellulosic textile fibers (CTF), microcrystalline cellulosic fibers, and nanocrystalline cellulosic fibers, were extracted from coffee waste to make them into valuable products. The morphological analysis of extracted cellulose is performed by scanning electron microscopy, and the Fourier transform infrared spectroscopy was performed to investigate the structure of extracted cellulose, which indicates the crystalline cellulosic components from the extraction process; X-ray diffractometer analysis shows the extracted cellulose was cellulose I and cellulose II. The cellulose that is extracted by ultrasonication with dimethyl sulfoxide has 88 % of cellulose with a crystallinity index of 74.5 %, and the thermal properties of raw coffee husk and extracted cellulose were compared by thermogravimetric analysis. Additionally, the dye uptake of the CTF shows its potential as a bio-adsorbent in the dye removal domain.

Original languageEnglish
JournalJournal of Testing and Evaluation
Volume51
Issue number5
DOIs
Publication statusPublished - Mar 2023
MoE publication typeA1 Journal article-refereed

Keywords

  • agricultural waste
  • bio-based material
  • coffee husk
  • microcellulose
  • nano cellulose
  • textile fiber

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