Published December 20, 2015 | Version v1
Journal article Metadata-only

One-step construction of N/Ti3+ codoped TiO2 nanotubes photoelectrode with high photoelectrochemical and photoelectrocatalytic performance

Creators

  • 1. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xinning Road 18, Chengxi District, Xining 810008 (China)
  • 2. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620 (China)
  • 3. State Key Laboratory of Urban Water Resources and Environment (SKLUWRE), School of Municipal of Environmental Engineering, Harbin Institute of Technology, Huanghe Road 73, Nangang District, Harbin 150090 (China)
  • 4. Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000 (China)
  • 5. College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225 (China)
  • 6. School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Binshuixi Road 399, Xiqing District, Tianjin 300387 (China)

Description

In this study, we reported a facile strategy to fabricate N, Ti3+ codoped TiO2 nanotubes (N-Ti3+/TiO2 NTs) photoelectrode through one-step solution reduction process. The hydrazine hydrate treatment induced the simultaneous formation of Ti3+ species and N-doping in the lattice of TiO2 NTs. In addition, the N-Ti3+/TiO2 NTs photoelectrode exhibited intense visible light absorption ranging from 400 to 800 nm, high transient photoinduced current of 0.213 mA cm−2, charge carriers concentration of 0.92 × 1019 cm−3, generation of hydroxyl radicals and PEC efficiency of 100% for the degradation of diclofenac solution within 4 h visible light irradiation. The enhanced-visible-light PEC performance was mainly attributed to the enhancement of visible light absorbance, narrow band gap energy and high separation efficiency of photoinduced charge carriers. This study provides a facile strategy to construct intense visible light active catalyst, which could be applied in the fields of wastewater/air purification, solar energy conversion and water splitting.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.electacta.2015.11.005

Additional details

Identifiers

DOI
10.1016/j.electacta.2015.11.005;
PII
S0013-4686(15)30777-5;

Publishing Information

Journal Title
Electrochimica Acta
Journal Volume
186
Journal Page Range
p. 442-448
ISSN
0013-4686
CODEN
ELCAAV

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
49018368
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AIR CLEANING; CHARGE CARRIERS; EFFICIENCY; HYDRATES; HYDRAZINE; HYDROXIDES; HYDROXYL RADICALS; IRRADIATION; NANOTUBES; PERFORMANCE; SOLAR ENERGY; SOLAR ENERGY CONVERSION; SOLUTIONS; TITANIUM IONS; TITANIUM OXIDES; TRANSIENTS; WASTE WATER
Descriptors DEC
CHALCOGENIDES; CHARGED PARTICLES; CLEANING; CONVERSION; DISPERSIONS; ENERGY; ENERGY CONVERSION; ENERGY SOURCES; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; IONS; LIQUID WASTES; MIXTURES; NANOSTRUCTURES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RADICALS; RENEWABLE ENERGY SOURCES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; WASTES; WATER

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.