Preparation of hydrogel composite from rice husk using microwave radiation and its potential application
| Main Authors: | Tjahjono, Andre, Prayogo, Ricky Lucano Chandra |
|---|---|
| Format: | Monograph NonPeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
Faculty of Engineering
, 2018
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| Subjects: | |
| Online Access: |
http://repository.wima.ac.id/16719/43/ABSTRACT.pdf http://repository.wima.ac.id/16719/3/CHAPTER%20I.pdf http://repository.wima.ac.id/16719/4/CHAPTER%20II.pdf http://repository.wima.ac.id/16719/5/CHAPTER%20III.pdf http://repository.wima.ac.id/16719/6/CHAPTER%20IV.pdf http://repository.wima.ac.id/16719/7/CHAPTER%20V.pdf http://repository.wima.ac.id/16719/2/APPENDIX.pdf http://repository.wima.ac.id/16719/ |
Daftar Isi:
- Rice husk is one of the largest agricultural waste. This waste is a potential source of cellulose that can be utilized as raw material for the production of hydrogels. The utilization of rice husk waste for hydrogels can help to reduce the amount of waste and raise the usability of the waste. The hydrogel can be used as a biomaterial for water purification from heavy metals, such as copper (Cu). Cu is easy to dissolve in water thus cause it to contaminate water easily. One method that can be used to sequester Cu is adsorption. Clay minerals such as zeolites have been proven to have excellent adsorption capacity for the removal of heavy metal. The adsorption capacity of hydrogel is further increased by combining with zeolite using microwave method. In this study, zeolite is added to the cellulose hydrogel to produce hydrogel-composite. Characterizations of hydrogel-composite are including Fourier Transform Infrared (FTIR) spectra, X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The adsorption capacity of hydrogel-composite against Cu is studied by using kinetic and isotherm. The effect of pH and %removal on the adsorption capacity also studied. It was found that hydrogel-composite with cellulose - zeolite ratio of 4:4 gives the best adsorption capacity of 1,41029 mg/g. Isotherm adsorption parameter also studied at 30 50 and 70 oC with Langmuir and freundlich model. at pH 7 has maximum adsorption capacity Qe = 4,318 mg/g