期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 88, 期 -, 页码 39-45出版社
ELSEVIER
DOI: 10.1016/j.seppur.2011.11.040
关键词
Capping agents; Photo-catalyst; CdS nanoparticles; Synthetic dyes' photo-degradation; Water color removal
资金
- CSIR (India)
- AMPRI, Bhopal
- Madhya Pradesh Council of Science and Technology (MPCST)
Photo-degradation of synthetic dyes by cadmium sulfide nano-particles synthesized by micro-emulsion/arrested precipitation routes using thioglycolic acid; potassium pyrosulfate and disodium salt of ethylene diamine tetra acetic acid (EDTA) as capping agents have been investigated. Synthesized nanoparticles have been characterized by X-ray diffraction, thermo-gravimetric analysis, high-resolution transmission electron microscopy. BET surface area analysis and UV-Vis spectro-photometry. The synthesized cadmium sulfide nano particles are observed to be a mixture of cubic and hexagonal phases and have crystallite size and surface area of 3.7, 6.8 and 13.9 nm and 32.11, 29.54 and 8.63 m(2)/g for thioglycolic acid, potassium pyrosulfate and EDTA capping agents, respectively. As expected, the photo-catalytic efficiency of nano-particles for degradation of dyes is observed to increase with increase in surface area (decrease in particulate size). (C) 2011 Elsevier B.V. All rights reserved.
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