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Title: Synthesis of pore-variable mesoporous CdS and evaluation of its photocatalytic activity in degrading methylene blue

Graphical abstract: - Highlights: • Self-templated synthesis of tubular CdS. • Cadmium complexes of aliphatic acids sustain the network of mesoporous structures. • Aliphatic acids affect the phase composition and particle size. • Pore size and volume vary with aliphatic acids having different hydrocarbonyl. - Abstract: In this study, mesoporous CdS polycrystallites have been synthesized using aliphatic acids of hexanoic acid, octanoic acid, and oleic acid as coordinating and capping agents, respectively. The fibrous Cd–fatty acid salts act as a template to form the tubular CdS. The organic species are found to be necessary for maintaining the network of mesoporous CdS. The characterization results indicate that the shorter carbon chain length in aliphatic acids favors the wurtzite phase and particle size growth the specific surface area, pore diameter and pore volume show a monotonic raise with increasing carbon chain. The photocatalytic activities of mesoporous CdS tubes exhibit much higher efficiency than those of nanosized CdS powders in decolorizing methylene blue under simulated visible light.
Authors:
 [1] ;  [1] ;  [2] ; ;  [1] ;  [1]
  1. School of Chemistry and Chemical Engineering, University of Jinan (China)
  2. Key Laboratory of Marine Chemistry Theory and Technology, Ocean University of China, Ministry of Education (China)
Publication Date:
OSTI Identifier:
22285171
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 48; Journal Issue: 10; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CADMIUM SULFIDES; HEXANOIC ACID; INORGANIC COMPOUNDS; METHYLENE BLUE; NANOSTRUCTURES; OCTANOIC ACID; OLEIC ACID; OPTICAL PROPERTIES; PARTICLE SIZE; PHOTOCATALYSIS; SEMICONDUCTOR MATERIALS; SPECIFIC SURFACE AREA; SYNTHESIS