Effect of nano-scale, reduced graphene oxide on the degradation of bisphenol A in real tertiary treated wastewater with the persulfate/UV-C process

Ozyildiz, Göksin; Ölmez-Hancı, Tuğba; Arslan-Alaton, İdil

doi:10.1016/j.apcatb.2019.04.092

Cited by 63 publications

(15 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bisphenol A (BPA) derived from biomass is usually utilized as the stabilizing agent in the processing of plastics and epoxy resins. In 2015, around 7.7 million metric tons of BPA was consumed with an annual increase of almost 5% until 2022 all over the world (Ozyildiz et al, 2019 ; Wang et al, 2019 ). However, BPA is regarded as a typical endocrine disrupting compound (EDC) and is carcinogenic and genotoxic.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Porous ZnO Nanoparticles Efficient for Photocatalytic Degradation of Biomass-Derived Bisphenol A Under Simulated Sunlight Irradiation

Wang

Kang

Yang

et al. 2021

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Bisphenol A (BPA) produced from biomass is a typical endocrine disrupting compound that is carcinogenic and genotoxic and can be accumulated in water due to its extensive use and difficult degradation. In this study, the porous ZnO photocatalyst with core-shell structure and large surface area was successfully developed for the efficient photocatalytic degradation of BPA. The various effects of calcination temperatures, BPA concentrations, ZnO dosages, pH and inorganic ions on the degradation performance were systemically studied. The results showed that 99% degradation of BPA was achieved in 1 h using the porous ZnO calcined at 550°C under the conditions of 30 mg/L BPA, 1 g/L ZnO, and pH of 6.5. Besides, the inhibition effects of anions for the photocatalytic removal of BPA decreased in the order of H2PO4- > HCO3- > SO42- > Cl−, while the cations K+, Ca2+, and Na+ had little effect on the photocatalytic degradation of BPA. The results of scavenging experiments showed that h+, ·O2-, and e− played the key role in the photocatalytic degradation process. Finally, the main pathways of BPA degradation were proposed based on ten intermediates found in the degradation process. This work may provide a good guideline to degrade various endocrine disrupting compounds in wastewater treatment.

show abstract

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Porous ZnO Nanoparticles Efficient for Photocatalytic Degradation of Biomass-Derived Bisphenol A Under Simulated Sunlight Irradiation

Wang

Kang

Yang

et al. 2021

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Speaking for the other studied peroxides, acute toxicity results obtained with V. fischeri were in complete agreement with former related work where PS/UV‐C treatment of BPA was studied in tertiary treated urban wastewater. [ 58 ] In that work, the highest relative inhibition was found to be 23% (BPA = 2 mg L −1 , PS = 0.125 m m , DOC of urban wastewater = 8.6 mg L −1 ) which is not even moderately toxic. [ 58 ] Lee et al.…”

Section: Resultsmentioning

confidence: 96%

“…[ 58 ] In that work, the highest relative inhibition was found to be 23% (BPA = 2 mg L −1 , PS = 0.125 m m , DOC of urban wastewater = 8.6 mg L −1 ) which is not even moderately toxic. [ 58 ] Lee et al. [ 54 ] reported a low inhibition rate of V. fischeri (<15%) during benzophenone‐3 treatment with the HP/UV and PS/UV processes, also emphasizing the superiority of PS/UV‐C in terms of pollutant removal and detoxification.…”

Section: Resultsmentioning

confidence: 99%

“…It has been previously reported that in some cases AOPs might generate degradation products that are more toxic than the parent pollutants. [ 54,57,58 ] Figure 4 depicts changes in acute toxicity toward V. fischeri during photochemical oxidation of BPA (2 mg L −1 )‐spiked TW that was followed during 60 min treatment. As can be seen from Figure 4, the original BPA solution in TW caused a moderate luminescence inhibition of 17%, 18%, 19%, and 20% for HP, PS, PC, and PAA/UV‐C treatments, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…[ 56 ] Recently, V. fischeri and D. magna have frequently been used for the assessment of potential toxicity of photochemical treatment products. [ 53,54,57–59 ]…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

UV‐C Activation of Peroxides for Bisphenol A Removal from a Real Water Sample

Öztürk

Ucun

Arslan-Alaton

2021

CLEAN Soil Air Water

View full text Add to dashboard Cite

The peroxides peracetic acid (PAA) and percarbonate (PC) are applied for UV‐C‐based advanced oxidation of the endocrine disrupting micropollutant bisphenol A (BPA; 2 mg L−1 = 8.76 µm) in pure and tap water. Their performance is compared with the more conventional hydrogen peroxide (HP)‐ and persulfate (PS)‐activated UV‐C treatments. Acidic and neutral pH values, 4 and 7, result in faster BPA removals with HP‐ and PS‐activated UV‐C treatments, respectively, whereas higher BPA removal rates are obtained at acidic and alkaline pH values, 4 and 10, with the PC/UV‐C and PAA/UV‐C treatments, respectively. Increasing the peroxide concentrations enhances BPA removals with the exception of PC/UV‐C treatment where an asymptotic removal rate is ultimately reached due to the inhibitory effect of increasing alkalinity. The order of total organic carbon (TOC) removal for the BPA‐spiked tap water (TW) (TOC ≈ 5 mg L−1 with added BPA) is TOCPAA/UV‐C (16%) < TOCPS/UV‐C (24%) < TOCHP/UV‐C (27%) < TOCPC/UV‐C (35%). BPA removal is most negatively affected for the HP/UV‐C processes, whereas the PC/UV‐C process outperformed the other peroxide/UV‐C treatments in terms of TOC removal due to the differences in the reactivity/selectivity of the in situ formed free radical types that may become important when working with real water. The originally low toxicity toward the marine photobacterium Vibrio fischeri and the freshwater crustacean Daphnia magna fluctuated during photochemical treatments.

show abstract

Porous Heteroatom‐Doped Carbons: Efficient Catalysts for Selective Oxidation of Alcohols by Activated Persulfate

et al. 2022

View full text Add to dashboard Cite

Aldehydes are essential chemicals for industrial feedstock. However, the traditional processes to produce these chemicals face many limitations, such as waste generation, low selectivity, or high cost. Herein, we report the synthesis and characterization of a group of porous heteroatom (P, B or N)-doped carbons and their use as catalysts for the oxidation of primary alcohols by activating peroxydisulfate. Among the heteroatom-doped carbons, porous N-doped carbons pyrolyzed at 700 or 800 °C show the highest activity. Experimental studies were performed suggesting a considerable contribution of a nonradical oxidation process. Furthermore, N-doped carbons can act as a catalyst in the oxidation of a large substrate scope of substituted alcohols.

show abstract

Effect of nano-scale, reduced graphene oxide on the degradation of bisphenol A in real tertiary treated wastewater with the persulfate/UV-C process

Cited by 63 publications

References 36 publications

Facile Synthesis of Porous ZnO Nanoparticles Efficient for Photocatalytic Degradation of Biomass-Derived Bisphenol A Under Simulated Sunlight Irradiation

Facile Synthesis of Porous ZnO Nanoparticles Efficient for Photocatalytic Degradation of Biomass-Derived Bisphenol A Under Simulated Sunlight Irradiation

UV‐C Activation of Peroxides for Bisphenol A Removal from a Real Water Sample

Porous Heteroatom‐Doped Carbons: Efficient Catalysts for Selective Oxidation of Alcohols by Activated Persulfate

Contact Info

Product

Resources

About