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Study on the photocatalytic degradation of glyphosate by TiO(2) photocatalyst.
Chemosphere. 2007 Mar; 67(5):1010-7.C

Abstract

In this paper, the photocatalytic degradation of glyphosate selected as the deputy of organic pollutant in aqueous solution with TiO(2) powder as a photocatalyst has been studied. The effects of various parameters, such as the amount of the photocatalyst, illumination time, initial pH value, electron acceptors, metal ions, and anions on the photocatalytic degradation of glyphosate were investigated. From the studies, the best condition for the effect of the parameters on the photocatalytic degradation of glyphosate was obtained. The results show that the optimum amount of the photocatalyst used is 6.0 g l(-1) for the photocatalytic reactions. The photodegradation efficiency of glyphosate increases with the increase of the illumination time. With the addition of Fe(3+), Cu(2+), H(2)O(2), K(2)S(2)O(8) or KBrO(3), the photocatalytic degradation of glyphosate is accelerated. However, with the addition of Na(+), K(+), Mg(2+), Ca(2+), Zn(2+), Co(2+) and Ni(2+), or with the addition of trace amounts of Cl(-), Br(-), SO(4)(2-), there are no obvious effects on the reactions. Acidic or alkaline mediums are favorable for the photocatalytic degradation of glyphosate. The possible roles of the additives on the reactions and the possible mechanisms of effect were discussed.

Authors+Show Affiliations

Department of Chemistry, Huaibei Coal Normal College, Anhui, Huaibei 235000, People's Republic of China. chshifu@hbcnc.edu.cnNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

17156814

Citation

Chen, Shifu, and Yunzhang Liu. "Study On the Photocatalytic Degradation of Glyphosate By TiO(2) Photocatalyst." Chemosphere, vol. 67, no. 5, 2007, pp. 1010-7.
Chen S, Liu Y. Study on the photocatalytic degradation of glyphosate by TiO(2) photocatalyst. Chemosphere. 2007;67(5):1010-7.
Chen, S., & Liu, Y. (2007). Study on the photocatalytic degradation of glyphosate by TiO(2) photocatalyst. Chemosphere, 67(5), 1010-7.
Chen S, Liu Y. Study On the Photocatalytic Degradation of Glyphosate By TiO(2) Photocatalyst. Chemosphere. 2007;67(5):1010-7. PubMed PMID: 17156814.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study on the photocatalytic degradation of glyphosate by TiO(2) photocatalyst. AU - Chen,Shifu, AU - Liu,Yunzhang, Y1 - 2006/12/06/ PY - 2006/06/14/received PY - 2006/10/19/revised PY - 2006/10/22/accepted PY - 2006/12/13/pubmed PY - 2007/5/15/medline PY - 2006/12/13/entrez SP - 1010 EP - 7 JF - Chemosphere JO - Chemosphere VL - 67 IS - 5 N2 - In this paper, the photocatalytic degradation of glyphosate selected as the deputy of organic pollutant in aqueous solution with TiO(2) powder as a photocatalyst has been studied. The effects of various parameters, such as the amount of the photocatalyst, illumination time, initial pH value, electron acceptors, metal ions, and anions on the photocatalytic degradation of glyphosate were investigated. From the studies, the best condition for the effect of the parameters on the photocatalytic degradation of glyphosate was obtained. The results show that the optimum amount of the photocatalyst used is 6.0 g l(-1) for the photocatalytic reactions. The photodegradation efficiency of glyphosate increases with the increase of the illumination time. With the addition of Fe(3+), Cu(2+), H(2)O(2), K(2)S(2)O(8) or KBrO(3), the photocatalytic degradation of glyphosate is accelerated. However, with the addition of Na(+), K(+), Mg(2+), Ca(2+), Zn(2+), Co(2+) and Ni(2+), or with the addition of trace amounts of Cl(-), Br(-), SO(4)(2-), there are no obvious effects on the reactions. Acidic or alkaline mediums are favorable for the photocatalytic degradation of glyphosate. The possible roles of the additives on the reactions and the possible mechanisms of effect were discussed. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/17156814/Study_on_the_photocatalytic_degradation_of_glyphosate_by_TiO_2__photocatalyst_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(06)01393-2 DB - PRIME DP - Unbound Medicine ER -