2011
DOI: 10.1007/s11356-011-0608-z
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Characterization of tannery sludge activated carbon and its utilization in the removal of azo reactive dye

Abstract: The developed cationic tannery sludge carbon was found to be an effective adsorbent in the removal of the anionic azo reactive dye RR31.

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Cited by 35 publications
(11 citation statements)
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“…It shows that pH PZC is approximately 5.0 for both the samples, which means at pH > 5.0 the activated carbons would have predominantly a negative charge at the surface while below this value the surface is positively charged. Typically, the pH at the point of zero charges on activated carbon is approximately 7 [33,34]. However, this was not observed from the AC samples prepared in the present study.…”
Section: Resultsmentioning
confidence: 54%
“…It shows that pH PZC is approximately 5.0 for both the samples, which means at pH > 5.0 the activated carbons would have predominantly a negative charge at the surface while below this value the surface is positively charged. Typically, the pH at the point of zero charges on activated carbon is approximately 7 [33,34]. However, this was not observed from the AC samples prepared in the present study.…”
Section: Resultsmentioning
confidence: 54%
“…1b. The efficiency of the adsorbent in the removal of reactive dyes in favoring adsorption process is discussed in the previous studies (Geethakarthi & Phanikumar, 2012).…”
Section: Sem Analysismentioning
confidence: 99%
“…By characterized the performance of these oil using thermogravimetric and GC/MS, the chemical components of these obtained oil products was similar to biodiese [141]. For the preparation of adsorbents, Geethakkarthi et al [142] prepared activated carbon from tannery sludge by a combination of physical and chemical activation, which was applied in removal of azo reactive dyes. The achieved adsorbent had a high BET surface area (188.25 m 2 /g) and strong binding ability to the anionic azo dyes [142].…”
Section: Preparation Of Oil and Adsorbentmentioning
confidence: 99%