Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 56, Issue 28, Pages 7948-7956Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.7b01693
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Funding
- National Natural Science Foundation of China [21376065, 51672073, 81573134]
- Heilongjiang Postdoctoral Startup Fund [LBH-Q14135]
- Postdoctoral Science Foundation of China [2017M611399]
- University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province [UNPYSCT-2015014, UN-PYSCT-2016018]
- Postdoctoral Science Foundation of Heilongjiang Province [LBH-Z16150]
- Innovative Science Research Project of Harbin Medical University [2016JCZX13]
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In situ Ti3+/N-codoped 3D urchinlike black TiO2 (b-N-TiO2) is synthesized via hydrothermal treatment with an in situ solid-state chemical reduction method, followed by annealing at 350 degrees C in argon. The results indicate that N and Ti3+ was codoped into the lattice of anatase TiO2. The prepared b-N-TiO2, with a narrow bandgap of similar to 2.43 eV, possesses a three-dimensional (3D) urchinlike nanostructure, which is composed of fiberlike architecture with a length of 200-400 nm and a width of 25 nm. The visible-light-driven photo catalytic degradation rate of Methyl Orange and hydrogen evolution rate for b-N-TiO2 are 95.2% and 178 mu mol h(-1) g(-1), respectively, which are similar to 3 and similar to 8 times higher than those of pristine TiO2. The excellent photocatalytic activity is mainly attributed to synergistic effect of the N and Ti3+ codoping narrowing the bandgap, and unique 3D urchinlike architecture favors the separation and transport surface-active sites. of photogenerated charge carriers and offers more
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