Affiliation:
1. Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials, College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China
Abstract
Black TiO2 with abundant oxygen vacancies (OVs)/B-doped graphitic carbon nitride (g-C3N4) Z-scheme heterojunction nanocomposites are successfully prepared by the one-pot strategy. The OVs can improve not only photogenerated carrier separation, but also the sorption and activation of antibiotic compounds (tetracycline hydrochloride, TC). The prepared heterojunction photocatalysts with a narrow bandgap of ∼2.13 eV exhibit excellent photocatalytic activity for the degradation of tetracycline hydrochloride (65%) under visible light irradiation within 30 min, which is several times higher than that of the pristine one. The outstanding photocatalytic property can be ascribed to abundant OVs and B element-dope reducing the bandgap and extending the photo-response to the visible light region, the Z-scheme formation of heterojunctions preventing the recombination of photogenerated electrons and holes, and promoting their effective separation.
Funder
Heilongjiang Provincial Natural Science Foundation of China
Fundamental Research Funds in Heilongjiang Provincial Universities
Key Research and Development Guidance Projects in Heilongjiang Province
Opening Foundation of Heilongjiang Provincial Key Laboratory of Polymeric Composition Materials
Undergraduate Training Programs for Innovation and Entrepreneurship of Qiqihar University
Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education
Subject
General Materials Science,General Chemical Engineering
Cited by
3 articles.
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