Synthesis and characterization of a novel nanocomposite zeolite @ metal–organic framework core @shell as UV light driven photocatalyst
سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 193
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شناسه ملی سند علمی:
IAAMM02_011
تاریخ نمایه سازی: 17 مرداد 1401
چکیده مقاله:
In this work, zeolite Y was synthesized by hydrothermal method and then modified with carboxylicacid. The succinic anhydride was used for producing functional group on the surface of the zeolite Y.MIL-۵۳(Al) metal–organic framework (MOF) as a shell was growth over zeolite Y as a core at roomtemperature. The Y@MIL-۵۳ core @shell was applied to develop a UV light active photocatalyst fordegradation of Eriochrome Black-T (EBT). The materials were characterized using a range oftechniques. Characterizations of samples were carried out by X-ray powder diffraction (XRD),scanning electron microscope (SEM), Fourier transform infrared (FT-IR) spectrometry, Transmissionelectron microscopy (TEM), UV–Vis diffused reflectance spectra (UV–Vis DRS) and zeta potential.The highest photocatalytic activity was related to Y@MIL-۵۳ core @shell. Degradation mechanismwas attributed to electrons and holes are generated in the organic ligand. Moreover, the Y@MIL-۵۳photocatalyst was extremely stable during five cycle test and did not demonstrate any explicit loss ofphotocatalytic activity during five cycle tests. The used adsorbent can be reused for adsorptiveremoval through simply washing. According to the experimental results, the possible mechanism ofadsorption was proposed.
کلیدواژه ها:
نویسندگان
Farzaneh Azadi
Department of chemistry, Technical and Vocational University (TVU), Tehran, Iran;
Afshin Pourahmad
Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran;
Shabnam Sohrabnezhad
Department of Chemistry, Faculty of Science, University of Guilan;