Effect of nitrate, carbonate/bicarbonate, humic acid, and H2O2 on the kinetics and degradation mechanism of Bisphenol-A during UV photolysis

Activated carbons (ACs) based on apricot shells (AS), wood (W), and walnut shells (WS) were applied to adsorb atrazine in co-solutions. To study the effect of Bisphenol A (BPA) on the adsorption behavior of atrazine, the adsorption performance of ACs for BPA in single solution was studied. The results demonstrated that the adsorption kinetics of BPA fitted the pseudo-second-order model, the adsorption isotherms of BPA followed the Langmuir model. Meanwhile, the adsorption kinetics of atrazine fitted the pseudo-second-order kinetics model and the isotherm was consistent with the Freundlich model both in single solution and co-solution. In addition, competitive adsorption was observed when atrazine coexisted with BPA or humic acid. For the adsorption capacity, the adsorption amount of ASAC, WAC, and WSAC for atrazine obviously decreased by 18.0%, 30.0%, and 30.3% in the presence of BPA, respectively, which was due to the π−π interactions, hydrophobic interactions, and H-bonds, resulting in the competitive adsorption between atrazine and BPA. This study contributes to the further understanding of the adsorption behavior for atrazine in co-solution.

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Characterising humic acid fouling of nanofiltration membranes using bisphenol A as a molecular indicator

Water Research ◽

10.1016/j.watres.2008.06.005 ◽

2008 ◽

Vol 42 (15) ◽

pp. 4049-4058 ◽

Cited By ~ 88

Author(s):

Long D. Nghiem ◽

Dirk Vogel ◽

Stuart Khan

Keyword(s):

Humic Acid ◽

Bisphenol A ◽

Nanofiltration Membranes

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Degradation of Endocrine Disrupting Chemicals Bisphenol A, Ethinyl Estradiol, and Estradiol during UV Photolysis and Advanced Oxidation Processes

Environmental Science & Technology ◽

10.1021/es035413p ◽

2004 ◽

Vol 38 (20) ◽

pp. 5476-5483 ◽

Cited By ~ 355

Author(s):

Erik J. Rosenfeldt ◽

Karl G. Linden

Keyword(s):

Bisphenol A ◽

Advanced Oxidation Processes ◽

Ethinyl Estradiol ◽

Endocrine Disrupting Chemicals ◽

Advanced Oxidation ◽

Uv Photolysis ◽

Oxidation Processes ◽

Endocrine Disrupting

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The study of spectral and luminescent properties of humic acids and their impact on the photodegradation process of 2,6-bis(hydroxymethyl)-4-methylphenol

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/928/1/012004 ◽

2021 ◽

Vol 928 (1) ◽

pp. 012004

Author(s):

A Fedorova ◽

I Sokolova ◽

S Selyanina

Keyword(s):

Humic Acid ◽

Phenolic Compound ◽

Humic Acids ◽

Luminescent Properties ◽

Photochemical Degradation ◽

Uv Photolysis ◽

Arkhangelsk Region ◽

Spectral And Luminescent Properties

Abstract UV photolysis (KrCl excilamp, λrad ~ 222 nm) of aqueous humic acids (HAs) samples was carried out without and in the presence of 2,6-bis(hydroxymethyl)-4-methylphenol. The samples of HAs fractions were obtained from Aldrich Chemical Co and prepared from peat of Arkhangelsk region. The presence of Aldrich humic acid in the solution has a essential effect on the processes of phenolic compound photochemical degradation under the action of light from the excilamp.

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