Synthesis of APTES and alcohol modified Sn/SBA-15 in presence of competitive ion: Test in degradation of Remazol Yellow

Akti F., BALCI F. S.

MATERIALS RESEARCH BULLETIN, cilt.145, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 145
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.materresbull.2021.111496
  • Dergi Adı: MATERIALS RESEARCH BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Compendex, INSPEC
  • Anahtar Kelimeler: Tin oxide, Silica modification, Aluminum competition, Characterization, Photodegradation, MESOPOROUS SILICA SBA-15, PHOTOCATALYTIC ACTIVITY, CATALYTIC PERFORMANCE, WATER-TREATMENT, SNO2, ADSORPTION, OXIDATION, SN-SBA-15, AMINE, DYES
  • Gazi Üniversitesi Adresli: Evet

Özet

Sn/SBA-15s were prepared hydrothermally either disolving metals in EA (ethyl alcohol) or/and APTES (3-aminopropyl triethoxysilane) modification of TEOS (tetraethyl ortosilicate) under aluminum competition. Proposed synthesis mechanism in presence of APTES was supported by characterization results. Tin loading to SBA-15 did not destroy characteristic XRD peaks and best textural properties were achieved with solely APTES modification. Nano-sized tin species settling and increase in loading by APTES+EA were observed by TEM and EDX analyses. FTIR spectrums exhibited characteristic SBA-15 bands in all samples. Both XRD patterns and UV-vis DR spectrums showed that tin species settled in tin oxide form. Using APTES created a decrease in band gap energy. Remazol Yellow removal was found similar to 58.2% of which 13.8% was due to photocatalytic degradation with sample synthesized in co-existence of APTES and EA. First-order kinetic fitted removal data well. Proposed model assumed, firstly dye molecules adsorbed, then some adsorbed molecules degraded by visible light.