Synthesis, structural and electrical conduction of some dual doped semiconductor oxides nanoparticles for photocatalytic degradation of Victoria blue-B and Brilliant yellow under solar light irradiation

Karale-Unde, N. J.; Nikumbh, A.K.; Khanvilkar, M.B.; Nagawade, P. A.; Pawar, R.A.; Nighot, D.V.; Misal, Saima; Gugale, G. S.

doi:10.1007/s10854-021-05237-6

Cited by 7 publications

(2 citation statements)

References 74 publications

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“…Current treatment methods include adsorption [6], coagulation [7], the membrane process, electrochemical separation, biological treatment, and catalysis [8]. Among these methods, adsorption technology and photocatalysis technology offer the advantages of high efficiency, safety, and low cost, and the raw materials used are readily available [9,10].…”

Section: Introductionmentioning

confidence: 99%

Chestnut Shell-Activated Carbon Mixed with Pyrolytic Snail Shells for Methylene Blue Adsorption

Nhung

Ding

et al. 2022

Materials

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Activated carbon has been used to treat organic dyes in water systems; however, the adsorption capacity of the samples studied was limited by the specific surface area and influenced by the pH of the aqueous solution. In this study, a hybrid adsorbent consisting of a mixture (MCS) of activated chestnut shell biochar (CN) and pyrolyzed snail shell material (SS) was developed to solve this problem, with the waste snail shell samples being processed by pyrolysis and the chestnut shell samples chemically pretreated and then pyrolyzed. The BET and SEM results revealed that the SS had a mesoporous fluffy structure with a higher specific surface (1705 m2/g) and an average pore diameter of about 4.07 nm, providing a large number of sites for adsorption. In addition, XPS and FTIR results showed that the main component of SS was calcium oxide, and it also contained a certain amount of calcium carbonate, which not only provided an alkaline environment for the adsorption of biochar but also degradation and photocatalytic capabilities. The results showed that the MCS3-1 sample, obtained when CN and SS were mixed in the ratio of 3:1, had good capacity for adsorption for methylene blue (MB), with 1145 mg/g at an initial concentration of 1300 mg/L (92% removal rate). The adsorption behaviors were fitted with the pseudo-second-order kinetic model and Freundlich isotherm model, which indicated that the adsorption was multilayer chemisorption with a saturated adsorption capacity of 1635 mg/g. The photocatalytic capacity from the SS composition was about 89 mg/g, and the sorption of MB dye onto the sorbent reached equilibrium after 300 min. The results suggested that MCS3-1 has enormous potential for removing MB from wastewater.

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Section: Introductionmentioning

confidence: 99%

Chestnut Shell-Activated Carbon Mixed with Pyrolytic Snail Shells for Methylene Blue Adsorption

Nhung

Ding

et al. 2022

Materials

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“…The results show that the phase types of the solid residues remained unchanged for both cases in comparison with pristine stibnite, comprising Sb 2 S 3 , quartz, Sb 2 O 3 and calcite, which is consistent with Wu et al [ 15 ]. However, the diffraction signal at 27° associated with Sb 2 O 3 became stronger for the case with A. ferrooxidans , but there was no difference for the case of the sterile control, indicating that more Sb 2 O 3 was generated [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

Enhancement Mechanism of Stibnite Dissolution Mediated by Acidithiobacillus ferrooxidans under Extremely Acidic Condition

Wang

Xia

Liu

et al. 2022

IJMS

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Oxidative dissolution of stibnite (Sb2S3), one of the most prevalent geochemical processes for antimony (Sb) release, can be promoted by Sb-oxidizing microbes, which were studied under alkaline and neutral conditions but rarely under acidic conditions. This work is dedicated to unraveling the enhancement mechanism of stibnite dissolution by typical acidophile Acidithiobacillus ferrooxidans under extremely acidic conditions. The results of solution behavior showed that the dissolution of Sb2S3 was significantly enhanced by A. ferrooxidans, with lower pH and higher redox potential values and higher [Sb(III)] and [Sb(V)] than the sterile control. The surface morphology results showed that the cells adsorbed onto the mineral surface and formed biofilms. Much more filamentous secondary minerals were formed for the case with A. ferrooxidans. Further mineral phase compositions and Sb/S speciation transformation analyses showed that more secondary products Sb2O3/SbO2−, Sb2O5/SbO3−, SO42−, as well as intermediates, such as S0, S2O32− were formed for the biotic case, indicating that the dissolution of Sb2S3 and the Sb/S speciation transformation was promoted by A. ferrooxidans. These results were further clarified by the comparative transcriptome analysis. This work demonstrated that through the interaction with Sb2S3, A. ferrooxidans promotes S/Sb oxidation, so as to enhance S/Sb transformation and thus the dissolution of Sb2S3.

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Length effect of ceria nanorod on its oxygen vacancy formation and photocatalytic property

Zhang

Xia

Mao

et al. 2022

J Mater Sci: Mater Electron

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Synthesis, structural and electrical conduction of some dual doped semiconductor oxides nanoparticles for photocatalytic degradation of Victoria blue-B and Brilliant yellow under solar light irradiation

Cited by 7 publications

References 74 publications

Chestnut Shell-Activated Carbon Mixed with Pyrolytic Snail Shells for Methylene Blue Adsorption

Chestnut Shell-Activated Carbon Mixed with Pyrolytic Snail Shells for Methylene Blue Adsorption

Enhancement Mechanism of Stibnite Dissolution Mediated by Acidithiobacillus ferrooxidans under Extremely Acidic Condition

Length effect of ceria nanorod on its oxygen vacancy formation and photocatalytic property

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