Multifunctional and highly active zinc titanate incorporated with copper for adsorptive hot syngas desulfurization and photocatalytic dye degradation    
Yazarlar (4)
Doç. Dr. Özlem TUNA Yalova Üniversitesi, Türkiye
Esra Bilgin Şimşek
Yalova Üniversitesi, Türkiye
Yeliz Durakçetin
Tubıtak Marmara Research Center, Türkiye
Alper Sarıoğlan
Tubıtak Marmara Research Center, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Journal of the Taiwan Institute of Chemical Engineers
Dergi ISSN 1876-1070 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 07-2020
Cilt No 112
Sayı 1
Sayfalar 388 / 396
DOI Numarası 10.1016/j.jtice.2020.04.008
Makale Linki http://dx.doi.org/10.1016/j.jtice.2020.04.008
Özet
Multifunctionality is of a paramount significance in the case of metal oxide-based material. In the present study, Cu-doped zinc titanates in different Cu/Zn weight ratios were prepared with co-precipitation method to utilize as an adsorbent and a photocatalysts for H2S removal and dye degradation, respectively. The structural and morphological analyses were carried out using XRD, XPS, SEM and BET. The experiment results showed that the catalysts had a desulfurization ability with the Cu/Zn weight ratio of 0.06:1, which H2S in the feed was captured with 100% efficiency in N2 atmosphere at 750 °C during 5 h, also the removal decreased to 57% in a reducing atmosphere at the end of 5 h. The appropriate Cu loading content could lead to the high active and low apparent activation energy. In addition, the Cu-based catalyst showed an excellent photocatalytic activity under UV light irradiation, which the degradation of Orange II (OII) was found to be 80% at the end of 3 h. The metal loading reduced the band-gap and increased oxygen vacancies of zinc titanate. The reactive adsorptive desulfurization and excellent photocatalytic activity results demonstrate Cu loaded zinc titanate as a promising material for multifunctional applications.
Anahtar Kelimeler
Adsorptive desulfurization | Orange II | Photocatalysis | Zinc titanate