Sonochemical-assisted synthesis of Pt/Bi2MoO6 nanocomposites for efficient photodegradation of rhodamine B

Pinchujit, Soraya; Phuruangrat, Anukorn; Wannapop, Surangkana; Thongtem, Titipun; Thongtem, Somchai

doi:10.1016/j.optmat.2022.113265

Cited by 19 publications

(3 citation statements)

References 61 publications

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“…For this purpose, many researchers have devoted themselves to the research and development of various photocatalysts for the degradation of RhB, such as ZnO [29][30], TiO 2 [31][32][33], SnO 2 [34] and CdS [35] and their modi ed catalytic materials [36][37][38][39][40]. Recently, the unique photocatalytic properties of ternary metal oxide semiconductors including Ag-AgMoO 3 , Co 3 O 4 -Bi 2 O 3 , BiVO 4 -rGO, PtBi 2 MoO 6 , and Zn 2 SnO 4 -BC have also attracted a lot of attention [41][42][43][44][45][46][47][48][49]. Typically, these catalysts consist of heavy metal ions, which are not conducive to wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Anthraquinone and its derivatives as a recyclable photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under visible light

Jiang,

Zhang,

Meng

et al. 2024

Preprint

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This study presents findings that suggest it is possible to fine-tune and enhance the optical properties of anthraquinone (AQ) and its photocatalytic performance in the degradation of rhodamine B (RhB) at the molecular level through varying its keleton substituents. Specifically, the electron-withdrawing substituent demonstrates a more pronounced improvement effect compared to the electron-donating substituent. Among them, 2-carboxyanthraquinone (AQ-COOH) demonstrated the most exceptional photocatalytic activity, affording 99.9% degradation rate under visible light irradiation for 30 min. It is noteworthy that a hydrochloric acid solution with a concentration of 0.5 mmol·L− 1 has a considerable promoting impact on the photodegradation of RhB catalyzed by AQ-COOH, and that the total degradation of RhB can be accomplished in 15 min. In addition, AQ-COOH also has good applicability for the degradation of tetracycline, methylene blue, and methyl orange. As a recyclable solid catalyst, the catalytic activity of AQ-COOH remained mostly unchanged after being used five times. Additionally, AQ-COOH did not undergo degradation when exposed to visible light, indicating its excellent stability in the process of catalyzing RhB degradation. According to quenching experiments and EPR spectrum characterizations, the photo-generated active species oxygen vacancies (h+), photogenerated electrons (e−), superoxide free radicals (O2•−), singlet oxygen (1O2) and hydroxyl radical (•OH) are involved in the hypothesized photo-catalytic degradation mechanism.

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Section: Introductionmentioning

confidence: 99%

Anthraquinone and its derivatives as a recyclable photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under visible light

Jiang,

Zhang,

Meng

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…[36][37][38][39][40] Recently, the unique photocatalytic properties of ternary metal oxide semiconductors including Ag-AgMoO 3 , Co 3 O 4 -Bi 2 O 3 , BiVO 4 -rGO, PtBi 2 MoO 6 , and Zn 2 SnO 4 -BC have also attracted a lot of attention. [41][42][43][44][45][46][47][48][49] Typically, these catalysts consist of heavy metal ions, which are not conducive to wastewater treatment. The introduction of heavy metal ions into the water body is unavoidable, and the synthesis process is relatively intricate and costly.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anthraquinone and its Derivatives as a Recyclable Photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under Visible Light

Su,

Zhang,

Meng

et al. 2024

ChemistrySelect

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This study presents findings that suggest it is possible to fine‐tune and enhance the optical properties of anthraquinone (AQ) and its photocatalytic performance in the degradation of rhodamine B (RhB) at the molecular level through varying its keleton substituents. Specifically, the electron‐withdrawing substituent demonstrates a more pronounced improvement effect compared to the electron‐donating substituent. Out of the several compounds, 2‐carboxyanthraquinone (AQ−COOH) exhibits the highest photocatalytic activity. This is due to its ionization in water, generating H+ ions that enhance the destruction of RhB through photodegradation. After 30 min of exposure to visible light, the degradation rate of RhB reaches an impressive 99.9 %. It is noteworthy that a hydrochloric acid solution with a concentration of 0.5 mmol ⋅ L−1 has a considerable promoting impact on the photodegradation of RhB catalyzed by AQ−COOH, and that the total degradation of RhB can be accomplished in 15 min. In addition, AQ−COOH also has good applicability for the degradation of tetracycline, methylene blue, and methyl orange. As a recyclable solid catalyst, the catalytic activity of AQ−COOH remained mostly unchanged after being used five times. Additionally, AQ−COOH did not undergo degradation when exposed to visible light, indicating its excellent stability in the process of catalyzing RhB degradation. According to quenching experiments and EPR spectrum characterizations, the photo‐generated active species oxygen vacancies (h+), photogenerated electrons (e−), superoxide free radicals (O2⋅−), singlet oxygen (1O2) and hydroxyl radical (•OH) are involved in the hypothesized photo‐catalytic degradation mechanism.

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Preparation of Zn_0.6Cd_0.4S/Bi₂MoO₆ Composite and Its Photocatalytic Degradation of Rhodamine B

Qin,

Li,

Wei

et al. 2024

ChemistrySelect

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As dye wastewater poses increasingly significant harm to the natural environment, the development of visible light responsive catalysts for the efficient degradation of dyes has become imperative. In this work, Zn0.6Cd0.4S solid solution modified Bi2MoO6 was synthesized via a two‐step solvothermal method. The photocatalytic performance of the catalyst was evaluated through the degradation of Rhodamine B (RhB) under visible light irradiation. The results indicated that the 10 wt% Zn0.6Cd0.4S/Bi2MoO6 (10% ZCS/BMO) composite exhibited remarkable RhB removal efficiency, achieving 92.8% after 2.5 h, while pristine BMO demonstrated only 53.6% removal. This enhancement was attributed to the successful construction of a heterojunction in the 10% ZCS/BMO composite, which led to low fluorescence intensity, signifying efficient separation of photogenerated carriers. Consequently, the photocatalytic activity of BMO was substantially improved. Furthermore, ·O2− played a pivotal role in RhB degradation. This work provides a reference for the design of efficient visible‐light‐driven catalyst, facilitating the rapid purification of dye wastewater.

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Sonochemical-assisted synthesis of Pt/Bi2MoO6 nanocomposites for efficient photodegradation of rhodamine B

Cited by 19 publications

References 61 publications

Anthraquinone and its derivatives as a recyclable photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under visible light

Anthraquinone and its derivatives as a recyclable photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under visible light

Anthraquinone and its Derivatives as a Recyclable Photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under Visible Light

Preparation of Zn_0.6Cd_0.4S/Bi₂MoO₆ Composite and Its Photocatalytic Degradation of Rhodamine B

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Sonochemical-assisted synthesis of Pt/Bi2MoO6 nanocomposites for efficient photodegradation of rhodamine B

Cited by 19 publications

References 61 publications

Anthraquinone and its derivatives as a recyclable photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under visible light

Anthraquinone and its derivatives as a recyclable photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under visible light

Anthraquinone and its Derivatives as a Recyclable Photocatalyst for Efficient Photocatalytic Degradation of Rhodamine B in Water under Visible Light

Preparation of Zn0.6Cd0.4S/Bi2MoO6 Composite and Its Photocatalytic Degradation of Rhodamine B

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Preparation of Zn_0.6Cd_0.4S/Bi₂MoO₆ Composite and Its Photocatalytic Degradation of Rhodamine B