Synthesis and Performance of NaA/MCM-48 Micro-Mesoporous Composite Molecular Sieve

Abstract:

NaA / MCM-48 micro-mesoporous molecular sieve was prepared at 100°C for 72 h by hydrothermal synthesis method, where chemicals with a equivalent ratio of n (SiO2)∶n (CTAB)∶n (H2O)∶n ( NaOH) is 1∶0.45∶60∶0.48 were added to NaA microporous molecular sieve prepared hydrothermally at 100°C for 5 h from a composite solution with a equivalent ratio of Na2O∶SiO2∶Al2O3∶H2O is 3∶2∶1∶200. The adsorption of the NaA / MCM-48 micro-mesoporous molecular sieve to cationic red X-5GN simulated dye existing in the waste water showed that, in 50 mL of 20 mg/L cationic red X-5GN solution, under the optimal conditions of a dosage of NaA/MCM-48 micro-mesoporous composite molecular sieve of 1.8g/L, a pH of 7 and an oscillation time of 30min, the decoloration rate of spent solution was above 82.5%. The XRD, SEM and TEM processes were adopted for its characterization to display the possible reasons.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 1979-1986
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.1979
• Online since: February 2012
• Authors: Jian Min Pan, Yue Cheng, Yun Yang Wei
• Keywords: Adsorption, Cationic Red X-5GN, Hydrothermal Synthesis, Micro-Mesoporous, Molecular Sieve, NaA/MCM-48

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