Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 7, Issue 8, Pages 1726-1734Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cy00286f
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Funding
- National Nature Science Foundation of China [21577036, 21377038, 21237003, 21677048]
- National Basic Research Program of China (973 Program) [2013CB632403]
- Science and Technology Commission of Shanghai Municipality [16JC1401400]
- Science and Technology Commission of Jiangsu Province [BC2015135]
- Fundamental Research Funds for the Central Universities
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We report a facile and eco-friendly one-pot synthesis of well-adorned mesoporous g-C3N4 material through a bubble templating strategy and involving controlling the surface area from 17 to 195 m(2) g(-1) by simply adjusting the mass ratio of melamine/NH4Cl. Various characterization techniques were adopted to examine the structures and physicochemical properties of the as-prepared mpg-C3N4 samples. The results are a step forward to the bottleneck problems of producing mesoporous g-C3N4 materials with both a high BET surface area with well-adorned pore diameters and considerable pore volume by simply employing ammonium chloride as a gaseous bubble template and melamine as a g-C3N4 precursor. The obtained ammonium chloride-mediated mesoporous g-C3N4 photocatalyst demonstrated excellent photocatalytic performance compared with bulk g-C3N4 for the visible light photodegradation of RhB and phenol. The extraordinary photocatalytic activity and outstanding stability of the as-prepared mesoporous g-C3N4 were predominantly attributed to the exceptionally high surface area with ordered pore diameters, improved optical absorbance, and efficient charge separation. Our work not only exhibits the simplest, eco-friendly, and economical approach to fabricate highly efficient well-adorned mesoporous g-C3N4 photocatalysts, but also paves new opportunities for the rational design and synthesis of advanced photocatalysts with great potential in environmental remediation.
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