Abstract—Disulfonato-silica hybrid (DSSH) has been synthesized through sol-gel process using a silica precursor of sodium silicate solution extracted from rice hull ash (RHA), acid monosodium salt 4-amino-5-hydroxy-2,7-naftalena-disulfonato (AHNSNa) as the sulfonato source, and a crosslinking compound of 3-chloropropyltrimethoxy-silane. The hybrid caracteristics were evaluated based on the infrared (IR) spectra, x-ray diffraction (XRD) paterns, Scanning Electron Microscope/Energy Dispersive X-ray spectroscopy (SEM/EDX), Brunauer–Emmett–Teller (BET) and Nuclear Magnetic Resonance-Silica (NMR-Si) spectra. Results show that the binding sulfonato has been happened. DSSH obtained has properties of amorphous, mesoporous size, and the future can be used as an adsorbent. Mainly used adsorbent for metal ions adsorb in accordance with the sulfonato group.

Index Terms—disulfonato silica hybrid, rice husk ash, sol-gel

Cite: C. Azmiyawati, Nuryono, and Narsito, "Synthesis of Disulfonato-Silica Hybrid from Rice Husk Ash," Journal of Medical and Bioengineering, Vol. 3, No. 4, pp. 301-305, December 2014. Doi: 10.12720/jomb.3.4.301-305