ACADSTAFF UGM
| Title | : | Green Synthesis of Silver Nanoparticles with Aloe Vera Gel Leaf Extract As Bioreductor by Indirect Sonication Method |
| Author | : |
Aulia Ratri Hapsari, S.Si., M.Sc. (1) Taufik Abdillah Natsir, S.Si., M.Sc., Ph.D. (2) Prof. Drs. Mudasir, M.Eng., Ph.D. (3) Prof.Dr Endang Tri Wahyuni M.Sc (4) |
| Date | : | 15 2019 |
| Keyword | : | Silver Nanoparticles,aloe vera,green synthesize,ultrasonic,sensor,mercury Silver Nanoparticles,aloe vera,green synthesize,ultrasonic,sensor,mercury |
| Abstract | : | In this study, silver nanoparticles were synthesized using aloe vera gel leaf extract as a bioreductor by indirect sonication method with the assistance of conventional ultrasonic bath. The aloe vera gel extract was used as a bioreductor due to the phenolic and aloin content. From the FT-IR of aloe vera gel leaf, it can be seen that there is a strong broad absorption band at 3410 cm-1 represents phenolic OH groups. The absorption band at 1597 cm-1 and 1720 cm-1 is due to carbonyl groups, and C=C stretching, respectively, which indicates the presence of aloin compound. The addition of 0.1 mL of aloe vera gel leaf extract into 5 mL AgNO3 0.01 M reduced AgNO3 to Ag0, which is shown by the color change. The color change from colorless to yellowish-orange after 1 h of indirect sonication indicated the formation of AgNPs, which then proved by the wavelength shift from 303 nm to 425 nm for AgNO3 solution and AgNps, respectively. To find out the ability of synthesized AgNps as Hg(II) colorimetric sensor, 1 mL of Hg(II) was added into 4 mL of AgNps. The interaction between AgNPs and Hg(II) reduced the peak intensity of surface plasmon resonance spectra at 425 nm, as indicated by the change in color from yellowish-orange to colorless. |
| Group of Knowledge | : | |
| Level | : | Internasional |
| Status | : |
Published
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