Next Article in Journal
A Cellulose/Laponite Interpenetrated Polymer Network (IPN) Hydrogel: Controllable Double-Network Structure with High Modulus
Next Article in Special Issue
The Ternary Heterostructures of BiOBr/Ultrathin g-C3N4/Black Phosphorous Quantum Dot Composites for Photodegradation of Tetracycline
Previous Article in Journal
Chemical and Electrochemical Synthesis of Polypyrrole Using Carrageenan as a Dopant: Polypyrrole/Multi-Walled Carbon Nanotube Nanocomposites
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle

Enhancement of Rhodamine B Degradation by Ag Nanoclusters-Loaded g-C3N4 Nanosheets

Center for Nano Science and Technology, Faculty of Physics, Hanoi National University of Education, 136 Xuan Thuy Road, Cau Giay District, Hanoi 100000, Vietnam
Hanoi University of Natural Resources and Environment, Phu Dien Road, North-Tu Liem District, Hanoi 100000, Vietnam
Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy Road, Cau Giay District, Hanoi 100000, Vietnam
Laboratoire de Photonique Quantiqueet Moléulaire, UMR 8537, Ecole Normale Supérieure de Cachan, Centrale Supélec, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan, France
Author to whom correspondence should be addressed.
Polymers 2018, 10(6), 633;
Received: 5 May 2018 / Revised: 3 June 2018 / Accepted: 6 June 2018 / Published: 8 June 2018
(This article belongs to the Special Issue Polymeric Photocatalysts and Gas Sensors)
PDF [3335 KB, uploaded 8 June 2018]


In this paper, silver (Ag) nanoclusters-loaded graphitic carbon nitride (g-C3N4) nanosheets are synthesized and their physical properties as well as photocatalytic activities are systematically investigated by different techniques. The existence of Ag atoms in the form of nanoclusters (NCs) rather than well-crystallized nanoparticles are evidenced by X-ray diffraction patterns, SEM images, and XPS spectra. The deposition of Ag nanoclusters on the surface of g-C3N4 nanosheets affect the crystal structure and slightly reduce the band gap energy of g-C3N4. The sharp decrease of photoluminescence intensity indicates that g-C3N4/Ag heterojunctions successfully prevent the recombination of photo-generated electrons and holes. The photocatalytic activities of as-synthesized photocatalysts are demonstrated through the degradation of rhodamine B (RhB) solutions under Xenon lamp irradiation. It is demonstrated that the photocatalytic activity depends strongly on the molar concentration of Ag+ in the starting solution. The g-C3N4/Ag heterojunctions prepared from 0.01 M of Ag+ starting solution exhibit the highest photocatalytic efficiency and allow 100% degradation of RhB after being exposed for 60 min under a Xenon lamp irradiation, which is four times faster than that of pure g-C3N4 nanosheets. View Full-Text
Keywords: photocatalyst; g-C3N4 nanosheet; Ag nanoclusters; degradation photocatalyst; g-C3N4 nanosheet; Ag nanoclusters; degradation

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Le, T.M.O.; Lam, T.H.; Pham, T.N.; Ngo, T.C.; Lai, N.D.; Do, D.B.; Nguyen, V.M. Enhancement of Rhodamine B Degradation by Ag Nanoclusters-Loaded g-C3N4 Nanosheets. Polymers 2018, 10, 633.

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.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top