We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Facile Synthesis of Uniform Mesoporous Nb 2 O 5 Micro-Flowers for Enhancing Photodegradation of Methyl Orange.
- Authors
Qiu, Jian-Ping; Xie, Huan-Qing; Wang, Ya-Hao; Yu, Lan; Wang, Fang-Yuan; Chen, Han-Song; Fei, Zheng-Xin; Bian, Chao-Qun; Mao, Hui; Lian, Jia-Biao
- Abstract
The removal of organic pollutants using green environmental photocatalytic degradation techniques urgently need high-performance catalysts. In this work, a facile one-step hydrothermal technique has been successfully applied to synthesize a Nb2O5 photocatalyst with uniform micro-flower structure for the degradation of methyl orange (MO) under UV irradiation. These nanocatalysts are characterized by transmission and scanning electron microscopies (TEM and SEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) method, and UV-Vis diffuse reflectance spectroscopy (DRS). It is found that the prepared Nb2O5 micro-flowers presents a good crystal phases and consist of 3D hierarchical nanosheets with 400–500 nm in diameter. The surface area is as large as 48.6 m2 g−1. Importantly, the Nb2O5 micro-flowers exhibit superior catalytic activity up to 99.9% for the photodegradation of MO within 20 mins, which is about 60-fold and 4-fold larger than that of without catalysts (W/O) and commercial TiO2 (P25) sample, respectively. This excellent performance may be attributed to 3D porous structure with abundant catalytic active sites.
- Subjects
CATALYSTS; PHOTODEGRADATION; SCANNING transmission electron microscopy; REFLECTANCE spectroscopy
- Publication
Materials (1996-1944), 2021, Vol 14, Issue 14, p3783
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma14143783