... 1.3.3.1  Al-MCM-41, Fe-MCM-41, -4 1, MCM-8, SBA- 15, Ti-MCM-41,  2, Fe2O3, ZrO2, 1.3.3.2  -4 1, SBA- 15,  -4 8, SBA- 16,   -5 0, h -1 , L3, – 1.3.4 – – [10]  1.3.4.1 [11] + - I , S - I+ c (SI... [12] Tro - ỗ - 1.3.4.3 [13] ỗ 1.3.4.4 [14] ỗ t 10 1.3.4.5 [15] – vô s 11   I , S I , S XI  (X  MI (M 1.4 -1 6 – 16 [16] 1.4.1 - 1000 m2/g 80 Å Å SBA- -1 6 1.4.2 SBA- 16 [16] - -Gel TEOS... .49 - 50 -1 6 51 x RHA Rice Husk Ash BET Brunauer-Emmett-Teller UV-VIS Ultraviolet – V XRD X-ray diffra SEM I S VLMQ MQTB M41S TEOS -4 1, MCM-48, TetraethylOrthosilicate MCM-41 MCM-48