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Photocatalytic removal of cyanide with illuminated TiO(2).
Water Sci Technol. 2011; 64(7):1383-7.WS

Abstract

Effects of TiO(2) dosage, pH and initial cyanide concentration on the removal efficiency of cyanide from aqueous solutions with illuminated TiO(2) have been investigated. Adsorption and oxidation were recognized as significant processes for the elimination of cyanide. From the Langmuir isotherm, the maximum adsorption capacity was determined as 17.24 mg/g at pH 7. Adsorbed amount of cyanide slightly increased as the TiO(2) dosage increased. However, as no significant increase was observed above 1 g/L TiO(2), an optimum TiO(2) dosage was determined as 1 g/L. Photocatalytic oxidation efficiency of cyanide was greatly affected by the solution pH. It increased as the solution pH decreased. The photocatalytic oxidation efficiency after 120 min was 80.4% at pH 3 while it was only 20.4% at pH 11. Photocatalytic oxidation of cyanide was well described by the second-order kinetics. Photocatalytic reaction with illuminated TiO(2) can be effectively applied to treat industrial wastewater contaminated with cyanide.

Authors+Show Affiliations

Environmental Health Research Center, Kurdistan University of Medical Science, Sanandaj, Kurdistan, Iran.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22179633

Citation

Siboni, M Shirzad, et al. "Photocatalytic Removal of Cyanide With Illuminated TiO(2)." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 64, no. 7, 2011, pp. 1383-7.
Siboni MS, Samarghandi MR, Yang JK, et al. Photocatalytic removal of cyanide with illuminated TiO(2). Water Sci Technol. 2011;64(7):1383-7.
Siboni, M. S., Samarghandi, M. R., Yang, J. K., & Lee, S. M. (2011). Photocatalytic removal of cyanide with illuminated TiO(2). Water Science and Technology : a Journal of the International Association On Water Pollution Research, 64(7), 1383-7. https://doi.org/10.2166/wst.2011.738
Siboni MS, et al. Photocatalytic Removal of Cyanide With Illuminated TiO(2). Water Sci Technol. 2011;64(7):1383-7. PubMed PMID: 22179633.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photocatalytic removal of cyanide with illuminated TiO(2). AU - Siboni,M Shirzad, AU - Samarghandi,M R, AU - Yang,J-K, AU - Lee,S-M, PY - 2011/12/20/entrez PY - 2011/12/20/pubmed PY - 2012/4/10/medline SP - 1383 EP - 7 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 64 IS - 7 N2 - Effects of TiO(2) dosage, pH and initial cyanide concentration on the removal efficiency of cyanide from aqueous solutions with illuminated TiO(2) have been investigated. Adsorption and oxidation were recognized as significant processes for the elimination of cyanide. From the Langmuir isotherm, the maximum adsorption capacity was determined as 17.24 mg/g at pH 7. Adsorbed amount of cyanide slightly increased as the TiO(2) dosage increased. However, as no significant increase was observed above 1 g/L TiO(2), an optimum TiO(2) dosage was determined as 1 g/L. Photocatalytic oxidation efficiency of cyanide was greatly affected by the solution pH. It increased as the solution pH decreased. The photocatalytic oxidation efficiency after 120 min was 80.4% at pH 3 while it was only 20.4% at pH 11. Photocatalytic oxidation of cyanide was well described by the second-order kinetics. Photocatalytic reaction with illuminated TiO(2) can be effectively applied to treat industrial wastewater contaminated with cyanide. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/22179633/Photocatalytic_removal_of_cyanide_with_illuminated_TiO_2__ L2 - https://iwaponline.com/wst/article-lookup/doi/10.2166/wst.2011.738 DB - PRIME DP - Unbound Medicine ER -