Photocatalytic degradation of bisphenol-A in aqueous solution by calcined PbO semiconductor irradiated with visible light

Chen, Wen-Shing; Huang, Shih-Lun

doi:10.5004/dwt.2020.25620

Cited by 3 publications

(2 citation statements)

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“…Experimental system accompanied with chief apparatus was consulted with our previous work ( Chen and Huang, 2020 ). The photocatalytic reactor was a quartz cylinder equipped with internal cooling coils and a magnetic stirrer, wherein temperature was adjusted through a thermostat (VWR Scientific Products Corp. 1167 Model).…”

Section: Experimental Methodsmentioning

confidence: 99%

Photocatalytic degradation of nitrobenzene in wastewater by persulfate integrated with Ag/Pb3O4 semiconductor under visible light irradiation

Chen

Liu

2021

Heliyon

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Nitrobenzene oxidation was executed utilizing an innovative method, in which Ag/Pb 3 O 4 semiconductors irradiated by visible light were used for activation of persulfate into sulfate radicals. Batch mode experiments were accomplished to elucidate the effect of persulfate concentrations and Ag/Pb 3 O 4 dosages on the nitrobenzene oxidation behaviors. The physicochemical properties of original and reacted Ag/Pb 3 O 4 were illustrated by X-ray diffraction analyses, UV-Vis diffuse reflectance spectra, FE-SEM images, EDS analyses, photoluminescence spectra and X-ray photoelectron spectra, respectively. The main oxidant was hypothesized to be sulfate radicals, induced from persulfate caused by photocatalysis of Ag/Pb 3 O 4 . It was clearly reflected on the scavenging experiments with addition of benzene, ethanol and methanol individually. As far as degradation pathways concerned, nitrobenzene was essentially transformed into hydroxycyclohexadienyl radicals, and sequentially converted to 2-nitrophenol, 3-nitrophenol or 4-nitrophenol simultaneously. Denitration of nitrophenols gave rise to synthesis of phenol, followed with generation of hydroquinone and p -benzoquinone.

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Section: Experimental Methodsmentioning

confidence: 99%

Photocatalytic degradation of nitrobenzene in wastewater by persulfate integrated with Ag/Pb3O4 semiconductor under visible light irradiation

Chen

Liu

2021

Heliyon

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“…The experimental system containing the main equipment was referred to in our previous report [33]. The photocatalytic cell was a quartz cylinder fitted internally with a magnetic stirrer and cooling coils, in which the testing temperature was maintained through a thermostat (PIIN JIA Technol.…”

Section: Testing Of Photocatalytic Oxidation Of Nitrobenzene By Ag/cu 2 O With Assistance Of Persulfatementioning

confidence: 99%

Photocatalytic Decomposition of Nitrobenzene in Aqueous Solution by Ag/Cu2O Assisted with Persulfate under Visible Light Irradiation

Chen

2021

Photochem

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The mineralization of nitrobenzene was executed using an innovative method, wherein Ag/Cu2O semiconductors stimulated by visible light irradiation were supported with persulfate anions. Batch-wise experiments were performed for the evaluation of effects of silver metal contents impregnated, persulfate concentrations and Ag/Cu2O dosages on the nitrobenzene removal efficiency. The physicochemical properties of fresh and reacted Ag/Cu2O were illustrated by X-ray diffraction analyses, FE-SEM images, EDS Mapping analyses, UV–Vis diffuse reflectance spectra, transient photocurrent analyses and X-ray photoelectron spectra, respectively. Because of intense scavenging effects caused by benzene, 1-propanol and methanol individually, the predominant oxidant was considered to be sulfate radicals, originated from persulfate anions via the photocatalysis of Ag/Cu2O. As regards oxidation pathways, nitrobenzene was initially transformed into hydroxycyclohexadienyl radicals, followed with the production of 2-nitrophenol, 3-nitrophenol or 4-nitrophenol. Afterwards, phenol compounds descended from denitration of nitrophenols were converted into hydroquinone and p-benzoquinone.

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Decomposition of nitrobenzene in wastewater using persulfate combined with Ag/PbO under ultrasonic irradiation

Chen¹,

Chang²

2021

Desalination and Water Treatment

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Photocatalytic degradation of bisphenol-A in aqueous solution by calcined PbO semiconductor irradiated with visible light

Cited by 3 publications

References 0 publications

Photocatalytic degradation of nitrobenzene in wastewater by persulfate integrated with Ag/Pb3O4 semiconductor under visible light irradiation

Photocatalytic degradation of nitrobenzene in wastewater by persulfate integrated with Ag/Pb3O4 semiconductor under visible light irradiation

Photocatalytic Decomposition of Nitrobenzene in Aqueous Solution by Ag/Cu2O Assisted with Persulfate under Visible Light Irradiation

Decomposition of nitrobenzene in wastewater using persulfate combined with Ag/PbO under ultrasonic irradiation

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