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Heterogeneous Fenton oxidation of Direct Black G in dye effluent using functional kaolin-supported nanoscale zero iron.
Environ Sci Pollut Res Int. 2014 Feb; 21(3):1936-1943.ES

Abstract

This study investigated kaolin-supported nanoscale zero-valent iron (nZVI/K) as a heterogeneous Fenton-like catalyst for the adsorption and oxidation of an azo dye, Direct Black G (DBG). New findings suggest that kaolin as a support material not only reduced the aggregation of nanoscale zero-valent iron (nZVI) but also improved the adsorption of DBG. It consequently improved Fenton oxidation by increasing the local concentration of DBG in the vicinity of nZVI. This was confirmed by scanning electron microscopy and X-ray diffraction for the surface morphology of nZVI/K before and after the Fenton-like reaction. Furthermore, nZVI/K proved to be a catalyst for the heterogeneous Fenton-like oxidation of the DBG process in the neutral pH range. More than 87.22 % of DBG was degraded, and 54.60 % of total organic carbon was removed in the optimal conditions: 0.6 g/L dosage of nZVI/K, 33 mM H2O2, 100 mg/L initial DBG concentration, temperature of 303 K and pH of 7.06. Finally, it was demonstrated that nZVI/K removed DBG from dye wastewater through the processes of adsorption and oxidation.

Authors+Show Affiliations

School of Environmental Science and Technology, Fujian Normal University, Fuzhou, 350007, Fujian Province, China. Cooperative Research Centre for Contamination Assessment and Remediation of Environments, Mawson Lakes, Adelaide, SA, 5095, Australia.School of Environmental Science and Technology, Fujian Normal University, Fuzhou, 350007, Fujian Province, China. Cooperative Research Centre for Contamination Assessment and Remediation of Environments, Mawson Lakes, Adelaide, SA, 5095, Australia.School of Environmental Science and Technology, Fujian Normal University, Fuzhou, 350007, Fujian Province, China. zlchen@fjnu.edu.cn. Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, Adelaide, SA, 5095, Australia. zlchen@fjnu.edu.cn. Cooperative Research Centre for Contamination Assessment and Remediation of Environments, Mawson Lakes, Adelaide, SA, 5095, Australia. zlchen@fjnu.edu.cn.Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, Adelaide, SA, 5095, Australia. Cooperative Research Centre for Contamination Assessment and Remediation of Environments, Mawson Lakes, Adelaide, SA, 5095, Australia.Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, Adelaide, SA, 5095, Australia. Cooperative Research Centre for Contamination Assessment and Remediation of Environments, Mawson Lakes, Adelaide, SA, 5095, Australia.

Pub Type(s)

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

Language

eng

PubMed ID

24014200

Citation

Liu, Xinwen, et al. "Heterogeneous Fenton Oxidation of Direct Black G in Dye Effluent Using Functional Kaolin-supported Nanoscale Zero Iron." Environmental Science and Pollution Research International, vol. 21, no. 3, 2014, pp. 1936-1943.
Liu X, Wang F, Chen Z, et al. Heterogeneous Fenton oxidation of Direct Black G in dye effluent using functional kaolin-supported nanoscale zero iron. Environ Sci Pollut Res Int. 2014;21(3):1936-1943.
Liu, X., Wang, F., Chen, Z., Megharaj, M., & Naidu, R. (2014). Heterogeneous Fenton oxidation of Direct Black G in dye effluent using functional kaolin-supported nanoscale zero iron. Environmental Science and Pollution Research International, 21(3), 1936-1943. https://doi.org/10.1007/s11356-013-2099-6
Liu X, et al. Heterogeneous Fenton Oxidation of Direct Black G in Dye Effluent Using Functional Kaolin-supported Nanoscale Zero Iron. Environ Sci Pollut Res Int. 2014;21(3):1936-1943. PubMed PMID: 24014200.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heterogeneous Fenton oxidation of Direct Black G in dye effluent using functional kaolin-supported nanoscale zero iron. AU - Liu,Xinwen, AU - Wang,Feifeng, AU - Chen,Zuliang, AU - Megharaj,Mallavarapu, AU - Naidu,Ravendra, Y1 - 2013/09/07/ PY - 2013/05/07/received PY - 2013/08/26/accepted PY - 2013/9/10/entrez PY - 2013/9/10/pubmed PY - 2014/6/15/medline SP - 1936 EP - 1943 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 21 IS - 3 N2 - This study investigated kaolin-supported nanoscale zero-valent iron (nZVI/K) as a heterogeneous Fenton-like catalyst for the adsorption and oxidation of an azo dye, Direct Black G (DBG). New findings suggest that kaolin as a support material not only reduced the aggregation of nanoscale zero-valent iron (nZVI) but also improved the adsorption of DBG. It consequently improved Fenton oxidation by increasing the local concentration of DBG in the vicinity of nZVI. This was confirmed by scanning electron microscopy and X-ray diffraction for the surface morphology of nZVI/K before and after the Fenton-like reaction. Furthermore, nZVI/K proved to be a catalyst for the heterogeneous Fenton-like oxidation of the DBG process in the neutral pH range. More than 87.22 % of DBG was degraded, and 54.60 % of total organic carbon was removed in the optimal conditions: 0.6 g/L dosage of nZVI/K, 33 mM H2O2, 100 mg/L initial DBG concentration, temperature of 303 K and pH of 7.06. Finally, it was demonstrated that nZVI/K removed DBG from dye wastewater through the processes of adsorption and oxidation. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/24014200/Heterogeneous_Fenton_oxidation_of_Direct_Black_G_in_dye_effluent_using_functional_kaolin_supported_nanoscale_zero_iron_ L2 - https://dx.doi.org/10.1007/s11356-013-2099-6 DB - PRIME DP - Unbound Medicine ER -