Pengaruh Suhu Sintesis Katalis Partikel Ceria Zirconia terhadap Efektivitas Proses Delignifikasi

Okky Putri Prastuti, Fandi Angga Prasetya, Ufafa Anggarini, Rifqi Putera Herwoto, Hesty Rahayu

Abstract


Biomassa adalah bahan organik yang dihasilkan melalui proses fotosintetik. Keberadaan lignin pada dinding sel akan menghambat selulosa untuk dikonversikan menjadi produk. Delignifikasi akan membuka struktur lignoselulosa agar selulosa menjadi lebih mudah diakses. Proses delignifikasi dapat dilakukan dengan menambahkan katalis Ceria-Zirconia kedalam sampel biomassa. Tujuan dari penelitian ini adalah menentukan pengaruh suhu sintesis pada sintesis partikel Ceria Zirconia dan menguji kemampuan partikel Ceria Zirconia sebagai katalis delignifikasi. Katalis Ceria Zirconia dapat diproduksi melalui metode hidrotermal. Prekursor yang digunakan adalah larutan kimia berupa Ce(NO3)3.6H2O dan ZrO(NO3)2.2H2O 0.06 M dengan perbandingan 1:1, dengan variabel suhu sintesis 180ºC, 200ºC dan 220ºC. Katalis Ceria Zirconia kemudian akan dianalisa melalui proses delignifikasi selama 10 dan 20 menit. Hasil penelitian menunjukkan bahwa semakin meningkatnya suhu sintesis akan meningkatkan kemampuan katalis Ceria-Zirconia dalam proses delignifikasi.

Biomass is organic material produced through photosynthetic processes. The presence of lignin on the cell wall will inhibit cellulose to be converted into products. Delignification will open the lignocellulose structure to make cellulose more accessible. The delignification process can be done by adding the Ceria-Zirconia catalyst to the biomass sample. The aim of this research is to determine the effect of synthesis temperature on Ceria Zirconia synthesis and to investigate the ability of Ceria Zirconia as a biomass delignification catalyst. Ceria-Zirconia Catalyst can be produced through the batch hydrothermal method. The precursors used were chemical solutions in the form of Ce(NO3)3.6H2O and ZrO(NO3)2.2H2O 0.06 M with a ratio of 1: 1, the synthesis temperature variables used were of 180ºC, 200ºC dan 220ºC. Ceria Zirconia Catalysts will then be analyzed for their abilities through a 10 and 20 minute delignification process. The results showed that the increasing synthesis temperature will increase the ability of Ceria-Zirconia catalyst in the delignification process.


Keywords


ceria zirconia; delignification; catalyst

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DOI: http://dx.doi.org/10.33795/jtkl.v4i1.131

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