Next Article in Journal
siRNA Delivery Strategies: A Comprehensive Review of Recent Developments
Previous Article in Journal
Mechanisms of Nanophase-Induced Desorption in LDI-MS. A Short Review
Previous Article in Special Issue
2D Transition Metal Dichalcogenides and Graphene-Based Ternary Composites for Photocatalytic Hydrogen Evolution and Pollutants Degradation
Open AccessArticle

Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation

Department of Chemistry, Shaoxing University, Shaoxing 312000, Zhejiang, China
Key laboratory of Coastal Zone Envirenmental Process and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, Shandong, China
Author to whom correspondence should be addressed.
Nanomaterials 2017, 7(4), 76;
Received: 1 February 2017 / Revised: 29 March 2017 / Accepted: 30 March 2017 / Published: 3 April 2017
(This article belongs to the Special Issue Nanoscale in Photocatalysis)
A series of high activity photocatalysts g-C3N4-TiO2 were synthesized by simple one-pot thermal transformation method and characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller (BET) surface area, and ultraviolet–visible diffuse reflectance spectroscopy (UV-Vis-DRS). The g-C3N4-TiO2 samples show highly improved photoreductive capability for the degradation of polybromodiphenyl ethers compared with g-C3N4 under visible light irradiation. Among all the hybrids, 0.02-C3N4-TiO2 with 2 wt % g-C3N4 loaded shows the highest reaction rate, which is 15 times as high as that in bare g-C3N4. The well-matched band gaps in heterojunction g-C3N4-TiO2 not only strengthen the absorption intensity, but also show more effective charge carrier separation, which results in the highly enhanced photoreductive performance under visible light irradiation. The trapping experiments show that holetrapping agents largely affect the reaction rate. The rate of electron accumulation in the conductive band is the rate-determining step in the degradation reaction. A possible photoreductive mechanism has been proposed. View Full-Text
Keywords: g-C3N4; TiO2; photoreductive; polybromodiphenyl ethers; visible light g-C3N4; TiO2; photoreductive; polybromodiphenyl ethers; visible light
Show Figures

Graphical abstract

MDPI and ACS Style

Ye, W.; Shao, Y.; Hu, X.; Liu, C.; Sun, C. Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation. Nanomaterials 2017, 7, 76.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop