A direct oxygen vacancy essential Z-scheme C@Ti4O7/g-C3N4 heterojunctions for visible-light degradation towards environmental dye pollutants

Xin Zhao, Xiaojing Zhang, Bolin Zhao, Fei Jia, Dongxue Han, Yingying Fan, Li Niu, Ari Ivaska

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The unique C@Ti4O7/g-C3N4 photocatalyst was synthesize via wet chemical and annealing & calcining method, which was gifted both the intrinsic oxygen vacancies as well as Z-scheme heterojunction nature in structure. Such a unique three-dimensional structure exhibited exceptional photodegradation performance for the dye simulations system (Rhodamine B (RhB), methylene blue (MB) and methyl orange (MO)) under visible light irradiation, which is better than a single component and Anatase-TiO2. Subsequently, a possible photocatalytic Z-scheme mechanism was proposed to further illustrate the effective separation of photogenerated electron-hole pairs in C@Ti4O7/g-C3N4 based on structure and electrochemical characterizations results, which will help to better understand the nature of Z-scheme heterojunctions.
Original languageEnglish
Pages (from-to)146486
JournalApplied Surface Science
Volume525
DOIs
Publication statusPublished - 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • C@TiO/g-CN
  • Specific surface area
  • Adsorption capacity
  • Photogenerated carriers
  • Photodegradation

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