Photocatalytic degradation of the herbicide quinclorac in water using Mn   (III) salen and solar light

Yisi YANG; Yan ZHANG; Qingru ZENG

Makale detayları

Photocatalytic degradation of the herbicide quinclorac in water using Mn (III) salen and solar light

Yazarlar:

Yisi YANG | Yan ZHANG | Qingru ZENG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2018 Vol.42 Issue 3, pp.694-703

Belge Tipi:

Makale

Yayın Tarihi:

5/2018

Belge Dili:

Türkçe

Document ID (Org No.):

2000726093

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Quinclorac (QNC) is a widely used herbicide and is   persistent in surface and ground waters. Its residuals and converted   products are hazardous to aquatic animals, vegetation, and microbes, and it   is therefore important to degrade QNC using an efficient and environmental   friendly technology. In this study, the photocatalytical degradation of QNC   using   [(R,R)-(N,N′′'-bis(3,5,3′′',5′′'-tetra-tert-butylsalicylidene)-1,2-cyclohexanediaminato]   manganese(III) acetate (Mn (III) salen) and H22_{2}O22_{2} was performed   under natural sunlight irradiation and a 91% degradation rate was   achieved in neutral pure water in 240 min. The identified degradation   products confirmed that the cleavage of QNC molecules was the main process   involved in the hydroxylation, along with the cracking of the N=C bond on   the pyridine ring and hydroxylation on the benzoic ring. The active species   analysis showed hydroxyl radicals and superoxide radicals were the main   reactive species. Photocatalytic kinetics indicated that the degradation   process was in accordance with a pseudo-first-order kinetic equation.

Makale detayları

Photocatalytic degradation of the herbicide quinclorac in water using Mn (III) salen and solar light

Yazarlar: Yisi YANG | Yan ZHANG | Qingru ZENG

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2018 Vol.42 Issue 3, pp.694-703

Belge Tipi: Makale

Yayın Tarihi: 5/2018

Belge Dili: Türkçe

Document ID (Org No.): 2000726093

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Yisi YANG | Yan ZHANG | Qingru ZENG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2018 Vol.42 Issue 3, pp.694-703

Belge Tipi:

Makale

Yayın Tarihi:

5/2018

Belge Dili:

Türkçe

Document ID (Org No.):

2000726093

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527