Visible light photodegradation of blue basic 41 using cobalt doped ZnO: Box–Behnken optimization and DFT calculation

Tanji, Karim; Zouheir, Morad; Naciri, Yassine; Ahmoum, Hassan; Hsini, Abdelghani; Mertah, Oumaima; Gaidoumi, Abdelali El; Navı́o, J.A.; Hidalgo, M. Carmen; Kherbeche, Abdelhak

doi:10.1007/s13738-022-02496-w

Cited by 24 publications

(6 citation statements)

References 75 publications

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“…The conduction band (CB) and valence band (VB) potentials of Gd 0.90 Ce 0.10 B 5 O 9 , Gd 0.85 Ce 0.15 B 5 O 9 , and CuO were calculated by the Milliken electronegativity theory. [34][35][36][37] The formulas are as follows:…”

Section: Resultsmentioning

confidence: 99%

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd_0.85Ce_0.15B₅O₉ and 2.5 %CuO/Gd_0.90Ce_0.10B₅O₉

Sun,

Xie,

Liu

et al. 2024

ChemistrySelect

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One of the important research components of photocatalytic research is the development of new photocatalysts, and recent studies have shown the rise of borate‐type photocatalysts. This paper focuses on the photoreduction of potassium dichromate and the photodegradation of rhodamine B by two borate composites under simulated sunlight. A coral‐like borate was obtained by sol‐gel preparation and then assembled by photodeposition with Pt nanoparticles dots or CuO particles to obtain the new composites with excellent performance. The kinetic constants of photocatalytic properties of 2 %Pt/Gd0.85Ce0.15B5O9 and 2.5 %CuO/Gd0.90Ce0.10B5O9 samples in the reduction and degradation reactions are 0.0050 min−1 and 0.0150 min−1, which are 25 and 4.2 times of the intrinsic GdB5O9 sample respectively. The results of the study indicate the research promise of developing new visible photocatalysts based on borates, especially for photocatalytic applications for pollutant removal.

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Section: Resultsmentioning

confidence: 99%

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd_0.85Ce_0.15B₅O₉ and 2.5 %CuO/Gd_0.90Ce_0.10B₅O₉

Sun,

Xie,

Liu

et al. 2024

ChemistrySelect

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“…In summary, they can be divided into two categories: subjective factors and objective factors. Subjective factors include the goals and norms of educational activities, which are reflected in the meaning and value of educational activities [15][16][17][18][19]. Objective factors include the objective conditions and means of educational activities, which are the ways and means to achieve educational activities [20].…”

Section: Introductionmentioning

confidence: 99%

The Optimization Path of Higher Education Resource Allocation in China Based on Fuzzy Set Theory

Zhao¹

2023

3C TIC

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The use of fuzzy set theory to adjust the educational resource allocation model is the optimal path to achieve the allocation of educational resources. The optimal path realized by fuzzy set theory promotes the healthy development of education and addresses the current important and urgent tasks in the field of higher education in China. This study utilizes the basic theory of fuzzy sets and analyzes dynamic fuzzy set theory, fuzzy relations and fuzzy matrices. The indexes of optimal allocation are selected according to the classification of higher education resources, the fuzzy set multi-objective planning model is designed, and finally, the combination of factors of education production in colleges and universities is optimized. The experiment proves that: the average allocation efficiency of excellent colleges and universities is 0.186, and the average improvement is 35.41% after optimization. The average allocation efficiency of ordinary colleges and universities is 0.174, which is improved by 22.12% on average after optimization. It can be found that the resource allocation efficiency of excellent colleges and universities is generally higher than that of ordinary colleges and universities, and the role of excellent colleges and universities with more abundant resources themselves is greater after the optimization of college resource allocation. It indicates that by adjusting the quantity and structure of educational resources according to the optimization path, the optimization of educational resource allocation can be achieved. This verifies that: the emergence of optimal paths for solving resource allocation realized by fuzzy set theory has greatly expanded the application of fuzzy methods in the field of higher education and provided a new theoretical tool for solving resource allocation.

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“…Recently, advanced oxidation processes (AOPs), including semiconductor-assisted photocatalysis, demonstrated outstanding performance toward completely degrading and mineralizing recalcitrant organic pollutants. [9] AOPs depend on producing highly reactive radicals, such as hydroxyl radicals (OH • ), which play a crucial role in degrading organic pollutants through oxidative or reductive routes. [10,11] These processes offer a promising solution for efficiently removing organic dyes and other pollutants from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Ba₃(PO₄)₂ Photocatalyst for Efficient Photocatalytic Application

Naciri,

Ahdour,

Benhsina

et al. 2023

Global Challenges

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Barium phosphate (Ba3(PO4)2) is a class of material that has attracted significant attention thanks to its chemical stability and versatility. However, the use of Ba3(PO4)2 as a photocatalyst is scarcely reported, and its use as a photocatalyst has yet to be reported. Herein, Ba3(PO4)2 nanoflakes synthesis is optimized using sol‐gel and hydrothermal methods. The as‐prepared Ba3(PO4)2 powders are investigated using physicochemical characterizations, including XRD, SEM, EDX, FTIR, DRS, J–t, LSV, Mott‐Schottky, and EIS. In addition, DFT calculations are performed to investigate the band structure. The oxidation capability of the photocatalysts is investigated depending on the synthesis method using rhodamine B (RhB) as a pollutant model. Both Ba3(PO4)2 samples prepared by the sol‐gel and hydrothermal methods display high RhB photodegradation of 79% and 68%, respectively. The Ba3(PO4)2 obtained using the sol‐gel process exhibits much higher stability under light excitation after four regeneration cycles. The photocatalytic oxidation mechanism is proposed based on the active species trapping experiments where O2•‒ is the most reactive species. The finding shows the promising potential of Ba3(PO4)2 photocatalysts and opens the door for further investigation and application in various photocatalytic applications.

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Visible light photodegradation of blue basic 41 using cobalt doped ZnO: Box–Behnken optimization and DFT calculation

Cited by 24 publications

References 75 publications

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd_0.85Ce_0.15B₅O₉ and 2.5 %CuO/Gd_0.90Ce_0.10B₅O₉

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd_0.85Ce_0.15B₅O₉ and 2.5 %CuO/Gd_0.90Ce_0.10B₅O₉

The Optimization Path of Higher Education Resource Allocation in China Based on Fuzzy Set Theory

Ba₃(PO₄)₂ Photocatalyst for Efficient Photocatalytic Application

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Visible light photodegradation of blue basic 41 using cobalt doped ZnO: Box–Behnken optimization and DFT calculation

Cited by 24 publications

References 75 publications

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd0.85Ce0.15B5O9 and 2.5 %CuO/Gd0.90Ce0.10B5O9

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd0.85Ce0.15B5O9 and 2.5 %CuO/Gd0.90Ce0.10B5O9

The Optimization Path of Higher Education Resource Allocation in China Based on Fuzzy Set Theory

Ba3(PO4)2 Photocatalyst for Efficient Photocatalytic Application

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Product

Resources

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Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd_0.85Ce_0.15B₅O₉ and 2.5 %CuO/Gd_0.90Ce_0.10B₅O₉

Two Novel Visible‐Light‐Active Borate Composites Photocatalysts: 2 %Pt/Gd_0.85Ce_0.15B₅O₉ and 2.5 %CuO/Gd_0.90Ce_0.10B₅O₉

Ba₃(PO₄)₂ Photocatalyst for Efficient Photocatalytic Application