Zinc Chloride-Doped g-C3N4 Microtubes for Enhanced Photocatalytic Degradation of Tetracycline Hydrochloride

Xiao Yu Ye, Yu Ling Qi, Ying Cheng, Qiang Wang, Guo Zhi Han

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Morphology regulation and element doping are effective means to improving the photocatalytic performance of graphite-phase carbon nitride (g-C3N4). In this article, using melamine and zinc chloride as raw materials, a novel kind of Zn/Cl-doped hollow microtubular g-C3N4 (Zn-HT-CN) by a hydrothermal method was developed. The structure and morphology of Zn-HT-CN and reference samples were characterized by X-ray diffraction patterns (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), etc. The doping of Zn/Cl narrowed the bandgap width of the hollow microtubular g-C3N4, as well as the inhibiting recombination of photogenerated electron and holes. Compared with the pure g-C3N4 microtube, Zn-HT-CN showed excellent catalytic performance for the photodegradation of tetracycline hydrochloride (TCH) under irradiation of visible light. The photodegradation rate of TCH reached 94.41% in 40 min, which was about two times as high as that catalyzed by the pure g-C3N4 microtube. Moreover, it was also superior to the g-C3N4 microtube doped with other typical metal elements. In addition, Zn-HT-CN showed good tolerance to environmental pH, and the catalytic efficiency of the material remained at 78.78% after five cycles.

Original languageEnglish
Pages (from-to)1684-1693
Number of pages10
JournalLangmuir
Volume41
Issue number3
DOIs
StatePublished - 28 Jan 2025

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