Preparation of 2D g-C3N4/TiO2 Heterojunction Nanocomposites for Photocatalytic Applications

Download

index.pdf

Date

2018-10-27

Author

Öztürk, Abdullah
Gündoğmuş, Pelin
Bouzıanı, Asmae
Erdoğan, Nursev

Metadata

Show full item record

Item Usage Stats

282
views

111
downloads

In the present study, 2-dimensional (2D) graphite carbon nitride (g-C3N4)/titanium dioxide (TiO2) nanocomposites have been synthesized to enhance visible light photocatalytic activity of TiO2. Synthesis of nanocomposites was done in 2 steps. First, g-C3N4 was realized by heating the melamine (2,4,6- Triamino-1,3,5- triazine) in nitrogen atmosphere. Then, g-C3N4 powder was dissolved in deionized water. Titanium precursor (Titanium tetra isopropoxide) and nitrogen source (HNO3) were mixed and added into g-C3N4 solution in various weight ratios to get g-C3N4/TiO2 nanocomposites of different mass ratios. The microstructural characteristics of the nano composites were examined using X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscope (FESEM) characterization techniques. After synthesis and characterization, photocatalytic activity of the nanocomposites were measured by methylene blue degradation test under UV light source using UV-Vis spectrophotometer. Results revealed that the composites synthesized had comparable photocatalytic activity with a commercially available well known TiO2 nanopowder, Degussa P25

URI

https://hdl.handle.net/11511/83706
http://www1.metalurji.org.tr/immc2018/03_NMS/115.pdf

Conference Name

19. Uluslararası Metalurji ve Malzeme Kongresi (2018)

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Characterization of non-Fickian moisture absorption in thermosetting polymers Güloğlu, Görkem Eğemen; Altan, M. Cengiz (2015-05-22) © 2015 AIP Publishing LLC.A recently developed moisture absorption model for thermosetting polymers that combines the non-Fickian, diffusion hindrance effects and three-dimensional anisotropy is introduced. The hindered diffusion model is shown to predict both short term Fickian and long term anomalous moisture absorption behavior often observed in thermosetting polymers and their composites. The salient characteristics of long term moisture uptake such as the equilibrium moisture content and the effect of ...
Fabrication of a promising immobilization platform based on electrochemical synthesis of a conjugated polymer Buber, Ece; SÖYLEMEZ, SANİYE; UDUM, YASEMİN; Toppare, Levent Kamil (2018-07-01) Since conjugated polymers are an important class of materials with remarkable properties in biosensor applications, in this study, a novel glucose biosensor based on a conjugated polymer was fabricated via the electropolymerization of the monomer 10,13-bis(4-hexylthiophen-2-yl)dipyridol[3,2-a:2',3'-c]phenazine onto a graphite electrode surface. Glucose oxidase (GOx) was used as the model biological recognition element. As a result of the enzymatic reaction between GOx and glucose, the glucose amount was det...
Preparation and characterization of a new CdS-NiFe2O4/reduced graphene oxide photocatalyst and its use for degradation of methylene blue under visible light irradiation Bagherzadeh, Mojtaba; Kaveh, Reyhaneh; Özkar, Saim; AKBAYRAK, SERDAR (Springer Science and Business Media LLC, 2018-10-01) In this paper, CdS nanoparticles as a visible light active photocatalyst were coupled by NiFe2O4 and reduced graphene oxide (rGO) to form CdS-NiFe2O4/rGO nanocomposite by facile hydrothermal methods. The CdS-NiFe2O4/rGO nanocomposite shows enhanced photocatalytic activity for the degradation of methylene blue (MB) under visible light illumination. In addition to improved photocatalytic performance, this prepared nanocomposite shows increased photostability and is magnetically separable from the aqueous medi...
Synthesis of opaque and colored hollow polymer pigments Karakaya, Ekin; MAVİŞ, BORA; Gündüz, Güngör (2017-09-01) A parametric study was carried out to investigate the effects of process parameters on the properties of opaque and/or colored polymer pigment. The core was synthesized using methyl methacrylate (MMA), methacrylic acid (MAA), and ethylene glycol dimethacrylate, and the shell from styrene. The surfactant/water (S/W) ratio was changed between 0.56 and 1.46, and the best ratio was determined to be 0.97. The increase in the amount of MAA and the pH of the medium increases the diameter of the swollen particles. ...
Computational modelling of electro-active polymers Dal, Sinan Fırat; Göktepe, Serdar; Department of Civil Engineering (2019) This study is concerned with the stability of Electro-Active Polymers (EAPs) having geometries with periodic microstructures subjected to coupled electromechanical effects. For this purpose, coupled electromechanical equations, which are nonlinear, are discretized using the Finite Element Method (FEM) under the prescribed boundary conditions. EAPs are smart materials that may undergo large mechanical deformations when subjected to an electric field. Unlike many other materials that show permanent deformatio...

Citation Formats

A. Öztürk, P. Gündoğmuş, A. Bouzıanı, and N. Erdoğan, “Preparation of 2D g-C3N4/TiO2 Heterojunction Nanocomposites for Photocatalytic Applications,” İstanbul, Türkiye, 2018, vol. 1, p. 551, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/83706.