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Vol 0 No 0.1 (3000): ONLINE FIRST

Pengaruh kalsinasi terhadap karakteristik mesoporous nanosilica (MSN) dari sludge geothermal dan performanya dalam sistem drug loading kurkumin

DOI
https://doi.org/10.22146/jrekpros.20154
Telah diserahkan
Maret 4, 2025
Diterbitkan
April 24, 2025

Abstrak

Studi ini dilakukan dengan tujuan untuk mempelajari pengaruh kalsinasi terhadap karakteristik mesoporous nanosilica (MSN) dari limbah sludge geothermal dan kinerjanya dalam drug loading kurkumin. Pembuatan MSN dilakukan dengan menggunakan metode sol-gel dengan menggunakan surfaktan polyvinylpyrrolidone (PVP). Penghilangan surfaktan dari MSN  diproses dengan memanfaatkan metode kalsinasi di mana muffle furnace diatur ada temperatur 600oC suhu  waktu operasi 7 jam. Sampel MSN yang terbentuk kemudian dikarakteristik dengan menggunakan instrumen XRF, XRD, FTIR, dan BET. Sementara itu, kemampuan adsorpsi MSN terhadap kurkumin sebelum dan setelah kalsinasi diukur dengan menggunakan larutan kurkumin 600 ppm. Proses drug loading ini berlangsung selama 6 jam pada temperatur ruang. Hasil studi menunjukkan bahwa komposisi dan struktur kristalinatas MSN tidak mengalami perubahan yang berarti akibat adanya proses kalsinasi. Tetapi, gugus fungsi MSN berubah setelah kalsinasi dilakukan. Ukuran pori MSN setelah kalsinasi juga mengecil dari 4,31 (sebelum kalsinasi) menjadi 4,02 nm. Perubahan karakteristik MSN ini juga memengaruhi kinerja dari drug loading kurkumin. Hal ini dapat dilihat berdasarkan efisiensi adsorpsi kurkumin di mana MSN terkalsinasi mampu mengadsorp kurkumin sebesar 32,92% sedangkan untuk MSN tidak terkalsinasi, efisiensi adsorpsinya sebesar 25,64%. Berdasarkan hasil studi ini, proses kalsinasi jelas memberikan pengaruh positif terhadap kemampuan drug loading MSN.

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