Characteristic Study of the MCM-41 Modified with Zn by Direct Synthesis

Nur Hasanah (Program Studi Pendidikan Kimia, FKIP, Universitas Sebelas Maret Jl. Ir. Sutami No. 36A, Surakarta, Jawa Tengah 57126)
Sutarno Sutarno (Program Studi Ilmu Kimia, Fakultas MIPA, Universitas Gadjah Mada Jl. Sekip Utara, Bulaksumur, Yogyakarta 55281)
Eko Sri Kunarti (Program Studi Ilmu Kimia, Fakultas MIPA, Universitas Gadjah Mada Jl. Sekip Utara, Bulaksumur, Yogyakarta 55281)

JKPK (Jurnal Kimia dan Pendidikan Kimia)
Vol 3, No 3 (2018): JKPK( Jurnal Kimia dan Pendidikan Kimia)

Modification of MCM-41 with zinc (Zn) by direct synthesis has been attempted. The aims of this research were (i) to show morphology of MCM-41, (ii) to know the optimal ratio of Si/Zn in MCM-41 modification, and (iii) to know crystallinity and pore diameter of MCM-41 and MCM-41 modified by Zn.  Zn metal added to MCM-41 matrix by direct synthesis used zinc nitrate as precursor with ratio Si/Zn variation. Zn added by direct synthesis to get larger diameter without changing the structure of MCM-41. Characterization of material was used XRD, FTIR, TEM, and N2 adsorption. Characterization of MCM-41 with TEM show that material has spherical shape with uniform pore morphology. The result of XRD show that synthesized MCM-41 has good crystallinity with three peaks observed specific to MCM-41. Ratio of Si/Zn optimal to modification MCM-41 is Si/Zn= 100. Modified MCM-41 show decrease in crystallinity and increase pore diameter that is 35.58 Ǻ compared with MCM-41 with pore diameter 31.42 Ǻ.