Synthesis of new Zn (II) complexes for photo decomposition of organic dye pollutants, industrial wastewater and photo-oxidation of methyl arenes under visible-light

Ahemed, Jakeer; Pasha, Jakeer; D, Venkateshwar Rao; Kore, Ranjith; Gade, Ramesh; Yadagiri, B.; Chetti, Prabhakar; Pola, Someshwar

doi:10.1016/j.jphotochem.2021.113455

Cited by 11 publications

(4 citation statements)

References 45 publications

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“…All the Zn(II) complexes of CPAMN, FPAMN, and MPAMN, undergo decomposition in a single stage, which indicates that the metalto-ligand ratio is 1:1, as shown in Figure 3. The observed TG curves show that Zn(II) complexes lose their ligand part [38] at single-step weight losses of up to 84.12% (calculated 83.58%) between 250 and 700 • C. The TG curve shows a plateau from 250 to 700 • C and then no further decomposition up to 800 • C. The obtained values match with the theoretical values for the ligand part of each complex and the final part or residual mass specified as anhydrous ZnO as the final product. Therefore, the crucible consists of a small amount of undecomposed part of the complex left, which corresponds to ZnO [38].…”

Section: Molar Conductance and Thermal Analysismentioning

confidence: 93%

“…All the Zn(II) complexes of CPAMN, FPAMN, and MPAMN, undergo decomposition in a single stage, which indicates that the metal-to-ligand ratio is 1:1, as shown in Figure 3. The observed TG curves show that Zn(II) complexes lose their ligand part [38] at single-step weight losses of up to 84.12% (calculated 83.58%) between 250 and 700 °C. The TG curve shows a plateau from 250 to 700 °C and then no further decomposition up to 800 °C.…”

Section: Molar Conductance and Thermal Analysismentioning

confidence: 95%

“…The obtained values match with the theoretical values for the ligand part of each complex and the final part or residual mass specified as anhydrous ZnO as the final product. Therefore, the crucible consists of a small amount of undecomposed part of the complex left, which corresponds to ZnO [38].…”

Section: Molar Conductance and Thermal Analysismentioning

confidence: 99%

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Photooxidation of 2,2′-(Ethyne-1,2-diyl)dianilines: An Enhanced Photocatalytic Properties of New Salophen-Based Zn(II) Complexes

et al. 2022

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Under solvothermal conditions, the Zn(II) complexes formed from salophen-based ligands with N and O donor atoms are reported. These Zn(II) complexes were initially confirmed through elemental analysis and supported by mass spectral data. The purity of the ligands and Zn(II) complexes was confirmed by using NMR spectral studies. The functional group complexation was established by FT-IR analysis. Additional supportive information about the complexes is also reported through molar conductance and thermal studies. The bandgap energies of the ligands and Zn(II) complexes are estimated with UV-visible DRS studies. The rate of recombination of hole–electron pairs is directly related to photocatalytic activity, which is confirmed by using emission spectral analysis. The surface metaphors for ligands and complexes are obtained from FESEM analysis. These new sequences of Zn(II) complexes were used for the photooxidation of 2,2′-(ethyne-1,2-diyl)dianiline and its derivatives. Mechanistic studies on the fast degradation of dyes were supported in the presence of several scavengers. The rapid photooxidation process in the presence of [Zn(CPAMN)] has been demonstrated, and a highly efficient photocatalyst for the photooxidation of 2,2′-(ethyne-1,2-diyl) dianiline has been proposed. Furthermore, the experimental findings are supported by the DFT studies.

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Section: Molar Conductance and Thermal Analysismentioning

confidence: 93%

Section: Molar Conductance and Thermal Analysismentioning

confidence: 95%

See 1 more Smart Citation

Photooxidation of 2,2′-(Ethyne-1,2-diyl)dianilines: An Enhanced Photocatalytic Properties of New Salophen-Based Zn(II) Complexes

et al. 2022

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“…Additionally, Mining activities and the industrial production of paper, textile, leather, iron and steel, and petroleum discharge a large amount of printing and dyeing wastewater. Electroplating and metallurgical wastewater contain a large amount of organic pollutants [ 5 , 6 ], including detergents, organic dyes, surfactants, curing agents, etc. [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

A Meta-Analysis of Influencing Factors on the Activity of BiVO4-Based Photocatalysts

Che

Zhu

et al. 2023

Nanomaterials

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With the continuous advancement of global industrialization, a large amount of organic and inorganic pollutants have been discharged into the environment, which is essential for human survival. Consequently, the issue of water environment pollution has become increasingly severe. Photocatalytic technology is widely used to degrade water pollutants due to its strong oxidizing performance and non-polluting characteristics, and BiVO4-based photocatalysts are one of the ideal raw materials for photocatalytic reactions. However, a comprehensive global analysis of the factors influencing the photocatalytic performance of BiVO4-based photocatalysts is currently lacking. Here, we performed a meta-analysis to investigate the differences in specific surface area, kinetic constants, and the pollutant degradation performance of BiVO4-based photocatalysts under different preparation and degradation conditions. It was found that under the loading condition, all the performances of the photocatalysts can be attributed to the single BiVO4 photocatalyst. Moreover, loading could lead to an increase in the specific surface area of the material, thereby providing more adsorption sites for photocatalysis and ultimately enhancing the photocatalytic performance. Overall, the construct heterojunction and loaded nanomaterials exhibit a superior performance for BiVO4-based photocatalysts with 136.4% and 90.1% improvement, respectively. Additionally, within a certain range, the photocatalytic performance increases with the reaction time and temperature.

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Photocatalytic treatment of detergent-contaminated wastewater: A short review on current progress

Joseph

Taufiq‐Yap

Affandi

et al. 2022

Korean J. Chem. Eng.

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Synthesis of new Zn (II) complexes for photo decomposition of organic dye pollutants, industrial wastewater and photo-oxidation of methyl arenes under visible-light

Cited by 11 publications

References 45 publications

Photooxidation of 2,2′-(Ethyne-1,2-diyl)dianilines: An Enhanced Photocatalytic Properties of New Salophen-Based Zn(II) Complexes

Photooxidation of 2,2′-(Ethyne-1,2-diyl)dianilines: An Enhanced Photocatalytic Properties of New Salophen-Based Zn(II) Complexes

A Meta-Analysis of Influencing Factors on the Activity of BiVO4-Based Photocatalysts

Photocatalytic treatment of detergent-contaminated wastewater: A short review on current progress

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