Hydrothermally synthesized ternary heterostructured MoS{sub 2}/Al{sub 2}O{sub 3}/g-C{sub 3}N{sub 4} photocatalyst

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2017.03.008· OSTI ID:22730520

Vattikuti, S.V. Prabhakar, ^[1]; Byon, Chan ^[2]

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1. School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749 (Korea, Republic of)
2. School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 (Korea, Republic of)

Highlights: • Surfactant-free synthetic method for synthesis of MoS{sub 2}/Al{sub 2}O{sub 3}/g-C{sub 3}N{sub 4} was proposed. • The optimized synthetic conditions for MoS{sub 2}/Al{sub 2}O{sub 3}/g-C{sub 3}N{sub 4} nanocomposites were also investigated. • Possible growth mechanism of the MoS{sub 2}/Al{sub 2}O{sub 3}/g-C{sub 3}N{sub 4} heterostructure is also reported. • 2Mo-Al-gCN sample revealed higher specific surface area with formation of mesoporous structure. - Abstract: A multifaceted ternary MoS{sub 2}/Al{sub 2}O{sub 3}/g-C{sub 3}N{sub 4} nanocomposite was prepared from a simple and facile hydrothermal method, which has good photocatalytic performance for the degradation of crystal violet (CV) dye under visible light irradiation. As a result of wide structural features for the charge separation mechanism, the formation of a ternary heterojunction affects the photocatalytic activity of the MoS{sub 2}/Al{sub 2}O{sub 3}/g-C{sub 3}N{sub 4} nanocomposite remarkably. The photocatalytic activity of ternary nanocomposite was approximately 10.28 and 1.65 times higher than that of pure g-C{sub 3}N{sub 4} and 20Al-gCN, respectively. More significantly, the ternary nanocomposite also showed good photostability and reusability. The enhanced visible light photocatalytic activity was attributed to the effective photocatalytic mechanism of charge separation of the ternary system, whereas the surface properties were key factors for photodegradation of the CV dye.

• OSTI ID: 22730520
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: Part 3 Vol. 96; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
CARBON NITRIDES
CATALYSTS
CRYSTAL GROWTH
HYDROTHERMAL SYNTHESIS
MOLYBDENUM SULFIDES
OXIDATION
PHOTOCATALYSIS
SEMICONDUCTOR MATERIALS
SPECIFIC SURFACE AREA
SURFACE PROPERTIES