In:
Catalysis Science & Technology, Royal Society of Chemistry (RSC), Vol. 13, No. 11 ( 2023), p. 3292-3303
Abstract:
A heterophase junction TiO 2 catalyst with brookite and anatase (MT-200-BA) was prepared via a facile one-step solvothermal method, based on the initial construction of the MIL-125(Ti) metal organic framework (MOF) precursor and subsequent structure transformation from the MOF precursor to brookite@anatase heterojunction TiO 2 . The fabricated catalysts have been fully characterized by X-ray diffraction (XRD), N 2 adsorption–desorption, thermogravimetry (TG), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR) and various spectral and electrochemical tests. It was found that the unique nanostructure with a high specific surface area and large pore diameter, particularly brookite@anatase heterophase junctions and a narrow band gap make the MT-200-BA catalyst exhibit a significantly enhanced solar-driven H 2 generation rate under air mass 1.5 global (AM 1.5 G), which is significantly higher than those of MIL-125(Ti), MT-180-MA and commercial P25. In addition, the MT-200-BA catalyst has also shown excellent photocatalytic performance for the degradation of tetracycline hydrochloride (TCH). The synthesis strategy adopted in this paper paves a new way for the construction of novel photocatalysts with heterojunctions via phase transformation from MOFs.
Type of Medium:
Online Resource
ISSN:
2044-4753
,
2044-4761
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2595090-3
