ACADSTAFF UGM
| Title | : | Preparation of L-Arginine-Modified Silica-Coated Magnetite Nanoparticles for Au(III) Adsorption |
| Author | : |
AMARIA (1) Prof. Dr.rer.nat. Nuryono, M.S. (2) Dr. Suyanta, M.Si. (3) |
| Date | : | 0 2017 |
| Keyword | : | L-arginine, silica, magnetite, Au(III) ion adsorption L-arginine, silica, magnetite, Au(III) ion adsorption |
| Abstract | : | L-arginine-modified silica-coated magnetite nanoparticles(Fe3O4/SiO2-GPTMS-Arg) have been synthesized by sol-gel process for adsorption of Au(III) ion in aqueous solution. Modification of L-arginine on silica coated magnetite through a coupling agent of 3-glycidoxypropyl-trimethoxysilane (GPTMS) was performed in avariousmole ratioof GPTMS:Arg 1:0; 1:1; 1:2 and 1:3.The products of Fe3O4/SiO2-GPTMS-Arg were characterized with XRD, FTIR, EDX, TGA, and Kjeldahl methods.The results showed that based on characterization data Fe3O4/SiO2-GPTMS-Arg has been successfully synthesized with the optimum mole ratio of 1:2. The optimum adsorption of Au(III) occurs at pH 3 and contact time of 60 min. The adsorption capacity followed Langmuir isotherm model was found0.638 mmol.g-1 for the Fe3O4/SiO2-GPTMS-Arg 1:2.Fe3O4/SiO2-GPTMS-Arg nanoparticles show a potential adsorbent for an effective Au(III) ion removal. |
| Group of Knowledge | : | Kimia |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
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