CdS-pillared CoAl-layered double hydroxide nanosheets with superior photocatalytic activity

Journal Article · Tue Dec 15 04:00:00 EST 2015 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2015.07.026· OSTI ID:22584236

Qiu, Yanqiang; Lin, Bizhou; Jia, Fangcao; Chen, Yilin; Gao, Bifen; Liu, Peide

Graphical abstract: - Highlights: • CdS nanocrystals were intercalated into CoAl-LDH interlayer. • The nanohybrid display superior visible-light photocatalytic activity. • A photoexcitation model for the pillared heterostructured system was proposed. - Abstract: A new nanohybrid was synthesized by mixing the positively charged 2D nanosheets of CoAl-layered double hydroxide (CoAl-LDH) and the negatively charged CdS nanosol suspensions. It was revealed that the CdS nanoparticles were intercalated into the interlayer region of CoAl-LDH with a spacing of 2.62 nm. The obtained nanohybrid exhibited a mesoporous texture with an expanded specific surface area of 62 m{sup 2} g{sup −1} and a superior photocatalytic activity in the degradation of acid red with a reaction constant of 1.26 × 10{sup −2} min{sup −1} under visible-light radiation, which is more than 2 times those of his parents CoAl-LDH and CdS.

• OSTI ID: 22584236
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 72; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ALUMINIUM
CADMIUM SULFIDES
CLATHRATES
HYDROXIDES
INTERMETALLIC COMPOUNDS
NANOPARTICLES
NANOSTRUCTURES
PHOTOCATALYSIS
SEMICONDUCTOR MATERIALS
SHEETS
SPECIFIC SURFACE AREA
SURFACES
SUSPENSIONS
VISIBLE RADIATION