Activation of peroxymonosulfate by BiVO 4 under visible light for degradation of Rhodamine B

Liu, Yang; Guo, Hongguang; Zhang, Yongli; Tang, Weihong; Cheng, Xiaonong; Liu, Hongwei

doi:10.1016/j.cplett.2016.04.069

Cited by 119 publications

(24 citation statements)

References 44 publications

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“…The possible reason for the strong inhibitory effect of chloride on the removal efficiency of MeP could be due to (i) reaction between SO 4 •− radicals and chloride ions (in competition with the organic pollutant) to generate sulfate ions (Eqns (14) and (15)) and (ii) high affinity of Cl − ions to react with SO 4 •− for oxidizing the chloride ions (as demonstrated in Eqns (16)–(19)). For phosphate, nitrate and carbonate ions, the inhibitory effect could be attributed to their actions as scavengers for SO 4 •− radicals, as reported in previous literature (Eqns (20)–(22)).

{normalCl}^{-} + {SO}_{4}^{• -} \to {normalCl}^{•} + {SO}_{4}^{2 -}

{normalCl}^{•} + {normalCl}^{-} \to {2Cl}^{• -}

{2Cl}^{• -} + {2Cl}^{• -} \to {normalCl}_{2} + {2Cl}^{-}

{normalCl}^{•} + {normalCl}^{•} \to {normalCl}_{2}

{normalCl}_{2} + {normalH}_{2} O \to HClO + HCl

HClO + HCl \to {normalH}^{+} + {HClO}^{-}

{PO}_{4}^{3 -} + {SO}_{4}^{• -} \to {PO}_{4}^{• 2 -} + {SO}_{4}^{2}

…”

Section: Resultssupporting

confidence: 73%

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Heterogeneous catalytic degradation of methylparaben using persulfate activated by natural magnetite; optimization and modeling by response surface methodology

Rostamifasih

Pasalari

Mohammadi

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND In this study, a naturally magnetic semiconductor mineral (NM‐SCM) was used as a highly active, easily separable and green catalyst to activate persulfate (SPS) for the degradation of methylparaben (MeP) in aqueous solution by a heterogeneous catalyst system (SPS/NM‐SCM). NM‐SCM properties were characterized using field emission scanning electron microscope (FESEM), Brunauer–Emmett–Teller (BET), X‐ray diffraction (XRD), energy‐dispersive X‐ray (EDX) and vibrating sample magnetometer (VSM) analyses. The effects of contributing factors such as solution pH, NM‐SCM loading, SPS dosage and initial MeP concentration on MeP degradation were analyzed using response surface methodology (RSM) and Box–Behnken design (BBD). RESULTS The RSM model obtained from the present study (R2 > 0.99) showed a suitable correlation between the predicted values and experimental results of MeP degradation. Under optimized conditions (pH 6.5, SPS 5 mmol L−1, NM‐SCM 0.3 g L−1 and MeP 10 µmol L−1), a removal efficiency of 99.5% and a mineralization degree of 37% were achieved. The removal efficiency of MeP was reduced in the presence of inorganic ions as follows: chloride > nitrate > carbonate > phosphate. After five successive catalyst reuses, the degradation efficiency was >90%, indicating the excellent potential reusability of NM‐SCM catalyst. CONCLUSION Owing to the generation of highly reactive oxidizing species (SO4•−) and easy separation of the catalyst, the integration of NM‐SCM and SPS has great potential for the degradation of MeP from water and wastewater matrices. © 2019 Society of Chemical Industry

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{normalCl}^{-} + {SO}_{4}^{• -} \to {normalCl}^{•} + {SO}_{4}^{2 -}

{normalCl}^{•} + {normalCl}^{-} \to {2Cl}^{• -}

{2Cl}^{• -} + {2Cl}^{• -} \to {normalCl}_{2} + {2Cl}^{-}

{normalCl}^{•} + {normalCl}^{•} \to {normalCl}_{2}

{normalCl}_{2} + {normalH}_{2} O \to HClO + HCl

HClO + HCl \to {normalH}^{+} + {HClO}^{-}

{PO}_{4}^{3 -} + {SO}_{4}^{• -} \to {PO}_{4}^{• 2 -} + {SO}_{4}^{2}

…”

Section: Resultssupporting

confidence: 73%

“…•− for oxidizing the chloride ions (as demonstrated in Eqns (16)- (19)). 65,66 For phosphate, nitrate and carbonate ions, the inhibitory effect could be attributed to their actions as scavengers for SO 4 •− radicals, as reported in previous literature (Eqns (20)- (22)). 31 Cl…”

Section: Influence Of Inorganic Anionssupporting

confidence: 63%

Heterogeneous catalytic degradation of methylparaben using persulfate activated by natural magnetite; optimization and modeling by response surface methodology

Rostamifasih

Pasalari

Mohammadi

et al. 2019

J of Chemical Tech & Biotech

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“…During photocatalytic oxidation, organic compounds (especially compounds containing double bonds) are attacked by active species, including holes (h + ), hydroxyl radicals (HO • ), and superoxide anion radical (O 2 − ). According to previous studies, BQ, EDTA, and TBA were agents that capture O 2 − , h + , and HO • , respectively [49,50,51]. As shown in Figure 9A, the MB degradation effect of T-BVO-600 was only slightly reduced by the addition of EDTA and the decomposition efficiency decreased as TBA was added to the photocatalytic system.…”

Section: Resultsmentioning

confidence: 74%

Effective Photocatalytic Activity of Sulfate-Modified BiVO4 for the Decomposition of Methylene Blue Under LED Visible Light

Nguyen

Quynh

et al. 2019

Materials

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In this study, we investigated sulfate-modified BiVO4 with the high photocatalytic activity synthesized by a sol-gel method in the presence of thiourea, followed by the annealing process at different temperatures. Its structure was characterized by thermal gravimetric analysis (TGA), powder X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS). The BiVO4 synthesized in the presence of thiourea and calcined at 600 °C (T-BVO-600) exhibited the highest photocatalytic degradation efficiency of methylene blue (MB) in water; 98.53% MB removal was achieved within 240 min. The reaction mechanisms that affect MB photocatalytic degradation on the T-BVO-600 were investigated via an indirect chemical probe method, using chemical agents to capture the active species produced during the early stages of photocatalysis, including 1,4-benzoquinone (scavenger for O2−), ethylenediaminetetraacetic acid disodium salt (scavenger for h+), and tert-butanol (scavenger for HO•). The results show that holes (h+) and hydroxyl radicals (HO•) are the dominant species of MB decomposition. Photoluminescence (PL) measurement results of terephthalic acid solutions in the presence of BiVO4 samples and BiVO4 powders confirm the involvement of hydroxyl radicals and the separation efficiency of electron-hole pairs in MB photocatalytic degradation. Besides, the T-BVO-600 exhibits good recyclability for MB removal, achieving a removal rate of above 83% after five cycles. The T-BVO-600 has the features of high efficiency and good recyclability for MB photocatalytic degradation. These results provide new insight into the purpose of improving the photocatalytic activity of BiVO4 catalyst.

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“…In recent years, the presence of organic pollutants in the environment has been reported as an emerging risk to biotic life, and most of the organic pollutants cannot be effectively removed through conventional water and wastewater treatment processes (Li, Fu, Zhang, Zhang, & Wang, 2016;Yamada, 2007). In order to remove organic pollutants from aqueous solutions, various technologies have been used, such as biological processes, electrochemical degradation, photocatalysis, ultrafiltration, and advanced oxidation processes (AOPs) (Kıranşan, Soltani, Hassani, Karaca, & Khataee, 2014;Liu et al, 2016;Wei et al, 2017). Among the various physicochemical processes, AOPs are considered to be more effective than many others, such as adsorption, flocculation, and nonradical based chemical oxidation (Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Synthetic NiO catalyst‐assisted peroxymonosulfate for degradation of benzoic acid from aqueous solution

Huo

Zhou

Zhang

et al. 2020

Water Environment Research

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A heterogeneous NiO catalyst was prepared by a precipitation process using nickel nitrate with oxalic acid and tested for heterogeneous oxidation of benzoic acid (BA) in the presence of peroxymonosulfate (PMS). It was found that the synthetic NiO is highly effective in heterogeneous activation of PMS to produce sulfate radicals ( SO4·- ) and hydroxyl radicals (·OH), and also presents stable performance in the heterogeneous activation of PMS for BA degradation. Physicochemical properties of the NiO catalyst were characterized by several techniques, such as thermogravimetric analysis, Brunauer‐Emmett‐Teller, Fourier transform infrared spectroscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. It was found that NiO and NiOOH were formed on the synthetic NiO catalyst and were stably distributed on the catalyst surface. Nearly 95% decomposition could be achieved in 30 min at the conditions of 500 ml 20 μM BA solution, 0.25 g catalyst, and [PMS]:[BA] = 30:1. The heterogeneous reactions, the effects of PMS concentration, and catalyst dosage on the BA degradation were investigated. The heterogeneous BA degradation reactions followed first‐order kinetics. Additionally, quenching experiments proved that the dominant radical in the solution was ·OH. The experiments results also showed that this approach is effective for the degradation of many other pollutants (such as tetracycline hydrochloride, 2, 4‐dichlorophenol, Acid orange 7, rhodamine B, and methyl red). Practitioner points A novel NiO material was fabricated for degradation of benzoic acid. The synthetic NiO catalyst comprised active NiO and NiOOH. The main radical for benzoic acid removal rate was ·OH. A plausible mechanism for catalyzed degradation of the benzoic acid was proposed.

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Activation of peroxymonosulfate by BiVO 4 under visible light for degradation of Rhodamine B

Cited by 119 publications

References 44 publications

Heterogeneous catalytic degradation of methylparaben using persulfate activated by natural magnetite; optimization and modeling by response surface methodology

Heterogeneous catalytic degradation of methylparaben using persulfate activated by natural magnetite; optimization and modeling by response surface methodology

Effective Photocatalytic Activity of Sulfate-Modified BiVO4 for the Decomposition of Methylene Blue Under LED Visible Light

Synthetic NiO catalyst‐assisted peroxymonosulfate for degradation of benzoic acid from aqueous solution

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