Hydrogen production from organic fatty acids using carbon-doped TiO2 nanoparticles under visible light irradiation

Yang Li; Liyuan Kuang; Dequan Xiao; Appala Raju Badireddy; Maocong Hu; Shiqiang Zhuang; Xianqin Wang; Eon Soo Lee; Taha Marhaba; Wen Zhang

doi:10.1016/j.ijhydene.2018.01.042

Hydrogen production from organic fatty acids using carbon-doped TiO₂ nanoparticles under visible light irradiation

Yang Li, Liyuan Kuang, Dequan Xiao, Appala Raju Badireddy, Maocong Hu, Shiqiang Zhuang, Xianqin Wang, Eon Soo Lee, Taha Marhaba, Wen Zhang

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

19 Scopus citations

Abstract

The photocatalytic production of H₂ using carbon-doped TiO₂ (C–TiO₂) nanoparticles has been investigated in single or mixed systems of organic fatty acids (OFAs) under visible light irradiation, including acetic acid, propionate acid, butyric acid and lactic acid. When OFAs were applied at the same electron density (10 e-eq L⁻¹), the H₂ evolution rates followed the order of propionic acid > butyric acid ≈ acetic acid > lactic acid, whereas at the same molar concentration (0.5 mol L⁻¹), that order changed to lactic acid > acetic acid > butyric acid ≈ propionic acid. This result implied that the electron transfer efficiency differed from four OFAs, probably due to their different affinity with C–TiO₂. O₂^•− and CH₃• partially contributed to OFAs degradation and H₂ production. The quantum dynamics simulations of electron transfer revealed that the dominant mechanism of H₂ production was direct electron transfer from adsorbed OFAs to C–TiO₂. This work aims to pursue the synergy of solar energy utilization and conversion of OFAs into H₂.

Original language	English (US)
Pages (from-to)	4335-4346
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	43
Issue number	9
DOIs	https://doi.org/10.1016/j.ijhydene.2018.01.042
State	Published - Mar 1 2018

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

Keywords

Carbon-doped TiO
Hydrogen production
Organic fatty acid
Quantum dynamics simulations
Visible light photocatalysis
Water splitting

Access to Document

10.1016/j.ijhydene.2018.01.042

Cite this

@article{d7c09ada90fe465c94a8f2faf3943714,

title = "Hydrogen production from organic fatty acids using carbon-doped TiO2 nanoparticles under visible light irradiation",

abstract = "The photocatalytic production of H2 using carbon-doped TiO2 (C–TiO2) nanoparticles has been investigated in single or mixed systems of organic fatty acids (OFAs) under visible light irradiation, including acetic acid, propionate acid, butyric acid and lactic acid. When OFAs were applied at the same electron density (10 e-eq L−1), the H2 evolution rates followed the order of propionic acid > butyric acid ≈ acetic acid > lactic acid, whereas at the same molar concentration (0.5 mol L−1), that order changed to lactic acid > acetic acid > butyric acid ≈ propionic acid. This result implied that the electron transfer efficiency differed from four OFAs, probably due to their different affinity with C–TiO2. O2•− and CH3• partially contributed to OFAs degradation and H2 production. The quantum dynamics simulations of electron transfer revealed that the dominant mechanism of H2 production was direct electron transfer from adsorbed OFAs to C–TiO2. This work aims to pursue the synergy of solar energy utilization and conversion of OFAs into H2.",

keywords = "Carbon-doped TiO, Hydrogen production, Organic fatty acid, Quantum dynamics simulations, Visible light photocatalysis, Water splitting",

author = "Yang Li and Liyuan Kuang and Dequan Xiao and Badireddy, {Appala Raju} and Maocong Hu and Shiqiang Zhuang and Xianqin Wang and Lee, {Eon Soo} and Taha Marhaba and Wen Zhang",

note = "Publisher Copyright: {\textcopyright} 2018 Hydrogen Energy Publications LLC",

year = "2018",

month = mar,

day = "1",

doi = "10.1016/j.ijhydene.2018.01.042",

language = "English (US)",

volume = "43",

pages = "4335--4346",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Limited",

number = "9",

}

TY - JOUR

T1 - Hydrogen production from organic fatty acids using carbon-doped TiO2 nanoparticles under visible light irradiation

AU - Li, Yang

AU - Kuang, Liyuan

AU - Xiao, Dequan

AU - Badireddy, Appala Raju

AU - Hu, Maocong

AU - Zhuang, Shiqiang

AU - Wang, Xianqin

AU - Lee, Eon Soo

AU - Marhaba, Taha

AU - Zhang, Wen

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The photocatalytic production of H2 using carbon-doped TiO2 (C–TiO2) nanoparticles has been investigated in single or mixed systems of organic fatty acids (OFAs) under visible light irradiation, including acetic acid, propionate acid, butyric acid and lactic acid. When OFAs were applied at the same electron density (10 e-eq L−1), the H2 evolution rates followed the order of propionic acid > butyric acid ≈ acetic acid > lactic acid, whereas at the same molar concentration (0.5 mol L−1), that order changed to lactic acid > acetic acid > butyric acid ≈ propionic acid. This result implied that the electron transfer efficiency differed from four OFAs, probably due to their different affinity with C–TiO2. O2•− and CH3• partially contributed to OFAs degradation and H2 production. The quantum dynamics simulations of electron transfer revealed that the dominant mechanism of H2 production was direct electron transfer from adsorbed OFAs to C–TiO2. This work aims to pursue the synergy of solar energy utilization and conversion of OFAs into H2.

AB - The photocatalytic production of H2 using carbon-doped TiO2 (C–TiO2) nanoparticles has been investigated in single or mixed systems of organic fatty acids (OFAs) under visible light irradiation, including acetic acid, propionate acid, butyric acid and lactic acid. When OFAs were applied at the same electron density (10 e-eq L−1), the H2 evolution rates followed the order of propionic acid > butyric acid ≈ acetic acid > lactic acid, whereas at the same molar concentration (0.5 mol L−1), that order changed to lactic acid > acetic acid > butyric acid ≈ propionic acid. This result implied that the electron transfer efficiency differed from four OFAs, probably due to their different affinity with C–TiO2. O2•− and CH3• partially contributed to OFAs degradation and H2 production. The quantum dynamics simulations of electron transfer revealed that the dominant mechanism of H2 production was direct electron transfer from adsorbed OFAs to C–TiO2. This work aims to pursue the synergy of solar energy utilization and conversion of OFAs into H2.

KW - Carbon-doped TiO

KW - Hydrogen production

KW - Organic fatty acid

KW - Quantum dynamics simulations

KW - Visible light photocatalysis

KW - Water splitting

UR - http://www.scopus.com/inward/record.url?scp=85043337657&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85043337657&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2018.01.042

DO - 10.1016/j.ijhydene.2018.01.042

M3 - Article

AN - SCOPUS:85043337657

SN - 0360-3199

VL - 43

SP - 4335

EP - 4346

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 9

ER -