Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 647, Issue -, Pages 456-462Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.06.056
Keywords
Cr-doped SrTiO3; g-C3N4; CrSTO/g-CN hybrid nanocomposites; Visible light; Photocatalysis
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Funding
- National Science Foundation of China [51302325]
- Science Fund for Distinguished Young Scholars of Hunan Province [2015JJ1016]
- Program for New Century Excellent Talents in University [NECT-12-0553]
- fund of the State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals [SKL-SPM- 201507]
- Scientific Research Foundation for the Returned Oversea China Scholars
- Hunan Youth Innovation Platform and Program for Shenghua Overseas Talent from Central South University (CSU) [90600-903030005, 90600-996010162]
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Herein, a green and facile strategy to prepare graphite carbon nitride hybridized chromium doping strontium titanate spheres (CrSTO/g-CN) nanocomposites was reported in this study. The structure characterization clearly indicated that the CrSTO spheres were successfully loaded on the g-C3N4 nano-sheets forming the CrSTO/g-CN heterojunction. Furthermore, the measurement of photocatalytic activity revealed that the as-prepared CrSTO/g-CN hybrid nanocomposites exhibit the considerable stability and significantly enhanced photocatalytic activity for the degradation of rhodamine B under visible light irradiation. Especially the photocatalytic activity of CrSTO/g-CN-70% was almost 4.5 times higher than that of pure g-C3N4 and 3.5 times higher than that of pure Cr-doped SrTiO3 respectively. The enhanced photocatalytic activity of the CrSTO/g-CN hybrid nanocomposites was due to a synergistic effect following the Z-scheme charge transfer mechanism to enhanced charge-separation ability. Therefore, the CrSTO/g-CN hybrid nanocomposites could be of potential interest for water splitting, new fuels synthesis and environmental remediation under natural sunlight. (C) 2015 Elsevier B.V. All rights reserved.
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