APPLICATION OF CELLULOSE CONTAINING LABILE CATIONIC GROUP IN REMOVAL OF HEAVY METALS FROM AQUEOUS SOLUTION
Keywords:Cellulose; cross linking; Heavy metal, microfibrils; sodium tripolypohosphate; X-ray diffraction
Chemical modification of cellulose was successfully carried out using different amounts of sodium tripolyphosphate. Cellulose was extracted using 2% sodium hydroxide and 10% H2O2 solution from the stem of Calotropis procera, the stem was dried after which the lignin content was removed. Incorporation of sodium tripolyphosphate (STTP) on the cellulose matrix, showed an increase in thickness and size of the cellulose microfibrils. The absorption band appeared at 1287 cm?1 in the Fourier transform infrared spectroscopy (FTIR), and is attributed to P=O stretching of the modified cellulose. Scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD) analyses were used to characterize the modified cellulose. The results of adsorption for the following heavy metals were found to be 71.43 mg/g, 41.84 mg/g for Pb2+, Cu2+ respectively. The adsorption equilibriums data satisfactorily fitted Langmuir isotherm equation better than Freundlich isotherm. The study indicates that the modified cellulose could be used as adsorbent for the removal of Pb2+ and Cu2+ ions from aqueous solution.
How to Cite
Copyright (c) 2022 INTERNATIONAL RESEARCH JOURNAL OF CHEMISTRY
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors retain all their rights to the published works, such as (but not limited to) the following rights;
- Copyright and other proprietary rights relating to the article, such as patent rights,
- The right to use the substance of the article in own future works, including lectures and books,
- The right to reproduce the article for own purposes,
- The right to self-archive the article
- The right to enter into separate, additional contractual arrangements for the non-exclusive distribution of the article's published version (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal (IRJC).