In:
Water Environment Research, Wiley, Vol. 91, No. 2 ( 2019-02), p. 165-174
Abstract:
Clay material is used as a catalyst to degrade an organic pollutant. This study focused on the O‐cresol oxidative degradation in aqueous solution by adding H 2 O 2 and Mont‐Na. The catalytic tests showed a high catalytic activity of Mont‐Na, which made it possible to achieve more than 84.6% conversion after 90 min of reaction time at 55°C in 23.2 mM H 2 O 2 . The pH value was found to be negatively correlated with the degradation rate of O‐cresol. UV–Vis spectrophotometry revealed that the increase of degradation rate at low pH is related to the formation of 2‐methylbenzoquinone as intermediate product. In addition, the content of iron in Mont‐Na decreased after the catalytic test, bringing further evidence about the O‐cresol catalytic oxidation. The mineralization of O‐cresol is also confirmed by the different methods of characterization of Mont‐Na after the catalytic oxidation test. The effect of the O‐cresol oxidation catalyzed by natural clay is significant. Practitioner points Algerian Montmorillonite‐Na is used as a catalyst to degrade an organic pollutant: O‐cresol. It shows a great potential for catalyst properties in the presence of the oxidizing reagent H 2 O 2 . It proved to be an effective means for the degradation of O‐cresol contained in wastewaters.
Type of Medium:
Online Resource
ISSN:
1061-4303
,
1554-7531
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
1098976-6
detail.hit.zdb_id:
2051010-X
