Multifunctional and highly active zinc titanate incorporated with copper for adsorptive hot syngas desulfurization and photocatalytic dye degradation

Özlem Tuna*, Esra Bilgin Simsek, Alper Sarıoğlan, Yeliz Durak Çetin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)388-396
Number of pages9
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume112
DOIs
Publication statusPublished - Jul 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 Taiwan Institute of Chemical Engineers

Funding

The authors gratefully acknowledge to TUBITAK (The Scientific and Technological Research Council of Turkey) for the financial support of the project (Project No: 213M766 ). The authors are also grateful to Yalova University for support (Project No: 2018/DR./0002 ).

FundersFunder number
TUBITAK
Yalova University2018/DR, /0002
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu213M766

    Keywords

    • Adsorptive desulfurization
    • Orange II
    • Photocatalysis
    • Zinc titanate

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