EKSTRAK BUNGA TAPAK KUDA (Ipomoea pescaprae L. Sweet) SEBAGAI MEDIUM SINTESIS NANOPARTIKEL EMAS

Aswin Falahudin, Salprima Yudha S, Irfan Gustian, Morina Adfa, Charles Banon, Teja Dwi Sutanto

Abstract


Pada penelitian ini, nanopartikel emas disiapkan melalui pendekatan green synthesis menggunakan ekstrak air bunga tapak kuda (Ipomoea pescaprae L. Sweet). Nanopartikel emas yang dihasilkan dianalisis menggunakan spektrofotometer UV-Vis, Mikroskop Leica, Particle Size Analyzer (PSA), Spektrofotometer Fourier Transform Infra-Red (FTIR) dan X-ray Difractometer (XRD). Hasil pengukuran  PSA menunjukkan ukuran partikel terbaik, diperoleh dengan menggunakan perbandingan volume 1 mL  larutan HAuCl4 dengan 9 mL ekstrak yang menghasilkan partikel dengan ukuran rata-rata 16,3 nm. Hasil penampakan dengan mikroskop cahaya, memperlihatkan partikel berbentuk bulat. Pergeseran bilangan gelombang pada spektrum infra-merah menunjukkan adanya interaksi antara metabolit sekunder dari ekstrak dengan material emas. Analisis XRD menunjukkan bahwa nanopartikel emas telah dapat dihasilkan dari kondisi reaksi ini.


Keywords


Nanopartikel emas, Ipomoea pescaprae (L) Sweet, Sintesis

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DOI: http://dx.doi.org/10.24817/jkk.v42i1.5810

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