Preparation and Spectrochemical characterization of Ni-doped ZnS nanocomposite for effective removal of emerging contaminants and hydrogen Production: Reaction Kinetics, mechanistic insights

Raza, Mohsin; Farooq, Umar; Ali Khan, Salman; Ullah, Zafran; Ehtisham Khan, Mohammad; Kashif Ali, Syed; Bakather, Omer Y.; Alam, Sarfaraz; Yasir Khan, Muhammad; Ali, Wahid; Ulla Khan, Anwar; Al Zoubi, Wail; Bashiri, Abdullateef H.; Zakri, Waleed

doi:10.1016/j.saa.2024.124513

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

2024

DOI: 10.1016/j.saa.2024.124513

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Preparation and Spectrochemical characterization of Ni-doped ZnS nanocomposite for effective removal of emerging contaminants and hydrogen Production: Reaction Kinetics, mechanistic insights

Mohsin Raza,

Umar Farooq,

Salman Ali Khan

et al.

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Cited by 13 publications

References 85 publications

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ZnS Derived from Hydrozincite Precursor: Impact of the Synthesis‐Solvothermal Temperature on the Photocatalytic Hydrogen Evolution

Piña‐Pérez,

Aguilar‐Martínez,

Santolalla‐Vargas

et al. 2024

ChemistrySelect

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This paper presents the synthesis of ZnS through solvothermal method using hydrozincite (Zn5(CO3)2(OH)6) as a precursor. Zinc sulfide (ZnS) was synthesized at four different temperatures: 80 °C, 100 °C, 140 °C, and 180 °C. All photocatalysts that were synthesized underwent characterization by X‐ray diffraction, scanning electron microscopy, infrared spectroscopy, thermogravimetric analysis, N2 adsorption‐desorption isotherms, diffuse reflectance spectroscopy, and X‐ray photoelectron analysis. The performance of H2 using photocatalysis was evaluated by utilizing methanol as a sacrificial agent. At 80 °C solvothermal temperature, the ZnS exhibited maximum photoactivity, leading to an H2 generation rate of 154.8 μmolh−1. The high photo‐activity of ZnS synthesized at 80 °C was mainly influenced by the crystallite size, which has an essential influence on the specific surface area. The photocatalytic efficiency of the most active material decreased by approximately 17 % over four reaction cycles due to the photo corrosion effect, with ZnSO3 being the primary by‐product formed after the reaction.

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ZnS Derived from Hydrozincite Precursor: Impact of the Synthesis‐Solvothermal Temperature on the Photocatalytic Hydrogen Evolution

Piña‐Pérez,

Aguilar‐Martínez,

Santolalla‐Vargas

et al. 2024

ChemistrySelect

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Synthesis, Characterization, and Application of La‐CNT in the Adsorption of Aqueous Rhodamine B Dye Solutions

Sahoo,

Jena,

Behera

et al. 2024

ChemistrySelect

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Researchers have focused on exploring various types of nanomaterial‐based adsorbents, of which carbon nanotubes (CNT) are the most promising, to offset the harmful effects of waste water‐containing dyes on both human health and aquatic ecosystems. A new, novel, efficient, rapid, and one‐pot synthetic route for synthesizing CNT has been attempted by using sodium perchlorate as a precursor at 300 °C for 3 h. Further, La‐CNT (lanthanum‐doped carbon nanotubes) has been synthesized. These materials were characterized through FTIR, FESEM, XRD, STA, EDS, and UV‐visible techniques, among others. Both materials were used as better suitable and efficient adsorbents to completely remove the toxic dye Rh‐B (Rhodamine B) (≈100% adsorption of dye) from aqueous solutions. The synthesized materials displayed lanthanum‐doped carbon nanotubes and aligned nanotubes, with lanthanum‐doped carbon buds present in La‐CNT. La‐CNT was found to be more thermally stable than CNT. Freundlich and Langmuir's isotherms were validated for the adsorption process, with pseudo‐second‐order kinetics being favored.

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Development of photoactive ZnS-SiO2 composites on biogenic silica matrix for organic pollutant degradation

Arefieva,

Vasilyeva,

Lukiyanchuk

et al. 2024

Environ Sci Pollut Res

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Preparation and Spectrochemical characterization of Ni-doped ZnS nanocomposite for effective removal of emerging contaminants and hydrogen Production: Reaction Kinetics, mechanistic insights

Cited by 13 publications

References 85 publications

ZnS Derived from Hydrozincite Precursor: Impact of the Synthesis‐Solvothermal Temperature on the Photocatalytic Hydrogen Evolution

ZnS Derived from Hydrozincite Precursor: Impact of the Synthesis‐Solvothermal Temperature on the Photocatalytic Hydrogen Evolution

Synthesis, Characterization, and Application of La‐CNT in the Adsorption of Aqueous Rhodamine B Dye Solutions

Development of photoactive ZnS-SiO2 composites on biogenic silica matrix for organic pollutant degradation

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