Sintesis HKUST-1 dengan Penambahan Co(II) Menggunakan Metode Solvotermal

Gina Aswari Intan Pertiwi, Ratna Ediati
Submission Date: 2016-07-21 08:42:12
Accepted Date: 2016-11-23 18:14:55

Abstract


Material tembaga-benzentrikarboksilat (Cu-BTC) dan kobalt-tembaga-benzentrikarboksilat (Co-Cu-BTC) telah berhasil disintesis dengan metode solvotermal pada suhu 100 °C selama 10 jam. Sintesis ini dilakukan dengan penambahan variasi mol Co(II) sebesar 2,5%; 5% dan 10% yang diikuti dengan pengurangan mol Cu(II). Cu-BTC dan Co-Cu-BTC hasil sintesis selanjutnya dikarakterisasi menggunakan XRD, FTIR, SEM-EDX, TGA dan BET. Difraktogram muncul pada sudut khas HKUST-1 yaitu 2θ = 11,6° ; 9,5° dan 2θ = 13,4°. Penambahan Co2+ mempengaruhi pergeseran puncak difraktogram dan intensitas puncak. Analisa FTIR menunjukkan bahwa penambahan Co2+ tidak mempengaruhi gugus fungsi yang ada pada material Cu-BTC. Penambahan Co2+ mempengaruhi keseragaman dari morfologi HKUST-1 ditunjukkan dengan analisa SEM-EDX. Analisa TGA menunjukkan Co-Cu-BTC memiliki stabilitas termal sebesar 354 °C. Luas permukaan yang dimiliki oleh Cu-BTC dan Co-Cu-BTC 5% masing-masing sebesar 1149 m2/g dan 1033 m2/g.   Pada uji reaksi esterifikasi menunjukkan bahwa Co-Cu-BTC 2,5% mampu meningkatkan konversi FFA yaitu sebesar 44,17%.


Keywords


doping logam; Esterifikasi; HKUST-1; kobalt; metode solvotermal

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