Fabrication of g-C3N4/TiO2 heterojunction composite for enhanced photocatalytic hydrogen production

M. A. Alcudia-Ramos; M. O. Fuentez-Torres; F. Ortiz-Chi; C. G. Espinosa-González; N. Hernández‐Como; D. S. García-Zaleta; M. K. Kesarla; J. G. Torres-Torres; V. Collins-Martínez; S. Godavarthi

doi:10.1016/j.ceramint.2019.08.228

Fabrication of g-C₃N₄/TiO₂ heterojunction composite for enhanced photocatalytic hydrogen production

M. A. Alcudia-Ramos, M. O. Fuentez-Torres, F. Ortiz-Chi, C. G. Espinosa-González, N. Hernández‐Como, D. S. García-Zaleta, M. K. Kesarla, J. G. Torres-Torres, V. Collins-Martínez, S. Godavarthi

Centro de Nanociencias y Micro y Nanotecnologías (CNMN)

Research output: Contribution to journal › Article › peer-review

124 Scopus citations

Abstract

In this study, graphitic carbon nitride (g-C₃N₄) was successfully coupled with TiO₂ using hydrothermal method, to develop an advanced heterojunction photocatalyst. The interaction between g-C₃N₄ and TiO₂ was confirmed through analysis of X-Ray spectroscopy (XPS) C 1s, N 1s, O 1s high resolution core level spectra of g-C₃N₄, TiO₂ and g–C₃N₄–TiO₂ heterojucntion. Further, through valence band spectra analysis, conduction band offset (0.12 eV) and valence band offset (0.28 eV) of g–C₃N₄–TiO₂ heterojunction were estimated. Also, composite material was identified as type II heterojunction between g-C₃N₄ and TiO₂. XRD, UV–vis, BET and HRTEM were employed to understand the changes in physicochemical properties. Photocatalytic hydrogen production rates were evaluated through water splitting experiments. Under visible light irradiation highest hydrogen production rate was achieved for g–C₃N₄–TiO₂ heterojunction sample with high content of TiO₂, and was about 1041 μmol/g.h. The improved photocatalytic activity of the heterojunction material was explained in detail.

Original language	English
Pages (from-to)	38-45
Number of pages	8
Journal	Ceramics International
Volume	46
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2019.08.228
State	Published - Jan 2020

Keywords

Graphitic carbon nitrogen
Heterojunction material
Photocatalytic production of hydrogen
Titanium oxide
Water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ceramint.2019.08.228

Cite this

Alcudia-Ramos, M. A., Fuentez-Torres, M. O., Ortiz-Chi, F., Espinosa-González, C. G., Hernández‐Como, N., García-Zaleta, D. S., Kesarla, M. K., Torres-Torres, J. G., Collins-Martínez, V., & Godavarthi, S. (2020). Fabrication of g-C₃N₄/TiO₂ heterojunction composite for enhanced photocatalytic hydrogen production. Ceramics International, 46(1), 38-45. https://doi.org/10.1016/j.ceramint.2019.08.228

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title = "Fabrication of g-C3N4/TiO2 heterojunction composite for enhanced photocatalytic hydrogen production",

abstract = "In this study, graphitic carbon nitride (g-C3N4) was successfully coupled with TiO2 using hydrothermal method, to develop an advanced heterojunction photocatalyst. The interaction between g-C3N4 and TiO2 was confirmed through analysis of X-Ray spectroscopy (XPS) C 1s, N 1s, O 1s high resolution core level spectra of g-C3N4, TiO2 and g–C3N4–TiO2 heterojucntion. Further, through valence band spectra analysis, conduction band offset (0.12 eV) and valence band offset (0.28 eV) of g–C3N4–TiO2 heterojunction were estimated. Also, composite material was identified as type II heterojunction between g-C3N4 and TiO2. XRD, UV–vis, BET and HRTEM were employed to understand the changes in physicochemical properties. Photocatalytic hydrogen production rates were evaluated through water splitting experiments. Under visible light irradiation highest hydrogen production rate was achieved for g–C3N4–TiO2 heterojunction sample with high content of TiO2, and was about 1041 μmol/g.h. The improved photocatalytic activity of the heterojunction material was explained in detail.",

keywords = "Graphitic carbon nitrogen, Heterojunction material, Photocatalytic production of hydrogen, Titanium oxide, Water splitting",

author = "Alcudia-Ramos, {M. A.} and Fuentez-Torres, {M. O.} and F. Ortiz-Chi and Espinosa-Gonz{\'a}lez, {C. G.} and N. Hern{\'a}ndez‐Como and Garc{\'i}a-Zaleta, {D. S.} and Kesarla, {M. K.} and Torres-Torres, {J. G.} and V. Collins-Mart{\'i}nez and S. Godavarthi",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = jan,

doi = "10.1016/j.ceramint.2019.08.228",

language = "Ingl{\'e}s",

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Alcudia-Ramos, MA, Fuentez-Torres, MO, Ortiz-Chi, F, Espinosa-González, CG, Hernández‐Como, N, García-Zaleta, DS, Kesarla, MK, Torres-Torres, JG, Collins-Martínez, V & Godavarthi, S 2020, 'Fabrication of g-C₃N₄/TiO₂ heterojunction composite for enhanced photocatalytic hydrogen production', Ceramics International, vol. 46, no. 1, pp. 38-45. https://doi.org/10.1016/j.ceramint.2019.08.228

TY - JOUR

T1 - Fabrication of g-C3N4/TiO2 heterojunction composite for enhanced photocatalytic hydrogen production

AU - Alcudia-Ramos, M. A.

AU - Fuentez-Torres, M. O.

AU - Ortiz-Chi, F.

AU - Espinosa-González, C. G.

AU - Hernández‐Como, N.

AU - García-Zaleta, D. S.

AU - Kesarla, M. K.

AU - Torres-Torres, J. G.

AU - Collins-Martínez, V.

AU - Godavarthi, S.

PY - 2020/1

Y1 - 2020/1

N2 - In this study, graphitic carbon nitride (g-C3N4) was successfully coupled with TiO2 using hydrothermal method, to develop an advanced heterojunction photocatalyst. The interaction between g-C3N4 and TiO2 was confirmed through analysis of X-Ray spectroscopy (XPS) C 1s, N 1s, O 1s high resolution core level spectra of g-C3N4, TiO2 and g–C3N4–TiO2 heterojucntion. Further, through valence band spectra analysis, conduction band offset (0.12 eV) and valence band offset (0.28 eV) of g–C3N4–TiO2 heterojunction were estimated. Also, composite material was identified as type II heterojunction between g-C3N4 and TiO2. XRD, UV–vis, BET and HRTEM were employed to understand the changes in physicochemical properties. Photocatalytic hydrogen production rates were evaluated through water splitting experiments. Under visible light irradiation highest hydrogen production rate was achieved for g–C3N4–TiO2 heterojunction sample with high content of TiO2, and was about 1041 μmol/g.h. The improved photocatalytic activity of the heterojunction material was explained in detail.

AB - In this study, graphitic carbon nitride (g-C3N4) was successfully coupled with TiO2 using hydrothermal method, to develop an advanced heterojunction photocatalyst. The interaction between g-C3N4 and TiO2 was confirmed through analysis of X-Ray spectroscopy (XPS) C 1s, N 1s, O 1s high resolution core level spectra of g-C3N4, TiO2 and g–C3N4–TiO2 heterojucntion. Further, through valence band spectra analysis, conduction band offset (0.12 eV) and valence band offset (0.28 eV) of g–C3N4–TiO2 heterojunction were estimated. Also, composite material was identified as type II heterojunction between g-C3N4 and TiO2. XRD, UV–vis, BET and HRTEM were employed to understand the changes in physicochemical properties. Photocatalytic hydrogen production rates were evaluated through water splitting experiments. Under visible light irradiation highest hydrogen production rate was achieved for g–C3N4–TiO2 heterojunction sample with high content of TiO2, and was about 1041 μmol/g.h. The improved photocatalytic activity of the heterojunction material was explained in detail.

KW - Graphitic carbon nitrogen

KW - Heterojunction material

KW - Photocatalytic production of hydrogen

KW - Titanium oxide

KW - Water splitting

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U2 - 10.1016/j.ceramint.2019.08.228

DO - 10.1016/j.ceramint.2019.08.228

M3 - Artículo

SN - 0272-8842

VL - 46

SP - 38

EP - 45

JO - Ceramics International

JF - Ceramics International

IS - 1

ER -