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Two-dimensional heterostructure material of transition metal-based layered double hydroxides (TM-LDHs) have become highly effective photocatalysts due to their unique structure, high surface areaSurface area, tunable compositionTunable composition, stabilityStability, and redox capabilities. Transition metals (Ti, Cr, Mn, Co, Fe, Ni, Cu, and Zn) as divalent or trivalent cations have been studied for the preparation of LDH materials to create ordered layered structure, adjustable interlayer spacing, better surface areaSurface area with porosity, exchangeability, enhanced catalytic ability, better redox ability for rapid electron transfer, ionic conductivity, and enhanced heat of adsorptionAdsorption and desorptionDesorption. TM-LDHSs also have distinctive physiochemical, electrocatalyticElectrocatalytic, and thermochemical propertiesThermochemical properties and are being evaluated in energy storage, electrocatalysis, environmental remediationEnvironmental remediation, sensors, and catalysis. The numerous advantageous properties of TM-LDHs like anion exchange capacity, adjustable composition, band gap tuning, photo-response, efficient charge separation, electron mobility, active sites, surface areaSurface area, thermal, chemical, and structure stabilityStability make them suitable for their photocatalytic role in water splitting, degradation of pollutant and CO2 reductionCO reduction. These materials have also possessed cocatalyst potential to form a hybrid system in conjunction with other photocatalytic materials and serve as support for metal/metal oxide/nanoparticles. This book chapter enlightens the potential of various TM-LDHSs in photocatalytic applications such as the organic pollutants (dye/drug/solvents) degradation, CO2 reductionCO reduction, overall water splittingOverall water splitting (OWS), hydrogen evolution reactionHydrogen evolution reaction (HER), oxygen evolution reactionOxygen evolution reaction (OER). With an emphasis on synthesis strategies utilizing different LDH photocatalyst materials, influencing parameters and potential mechanisms involved in different photocatalysis to synthesize useful fuels, chemicals like CO, CH4, CH3OH, and H2, and purification of wastewater.

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Transition Metal-Based Layered Double Hydroxides for Enhanced Photocatalysis and Adsorption

  • 章节

  • 发表日期：

    2026年

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  • Savita Soni,
  • Anjali Kumari,
  • Parul Soni,
  • Anupam Sharma,
  • Ajay Sharma,
  • Anil Kumar Sharma

摘要

Two-dimensional heterostructure material of transition metal-based layered double hydroxides (TM-LDHs) have become highly effective photocatalysts due to their unique structure, high surface areaSurface area, tunable compositionTunable composition, stabilityStability, and redox capabilities. Transition metals (Ti, Cr, Mn, Co, Fe, Ni, Cu, and Zn) as divalent or trivalent cations have been studied for the preparation of LDH materials to create ordered layered structure, adjustable interlayer spacing, better surface areaSurface area with porosity, exchangeability, enhanced catalytic ability, better redox ability for rapid electron transfer, ionic conductivity, and enhanced heat of adsorptionAdsorption and desorptionDesorption. TM-LDHSs also have distinctive physiochemical, electrocatalyticElectrocatalytic, and thermochemical propertiesThermochemical properties and are being evaluated in energy storage, electrocatalysis, environmental remediationEnvironmental remediation, sensors, and catalysis. The numerous advantageous properties of TM-LDHs like anion exchange capacity, adjustable composition, band gap tuning, photo-response, efficient charge separation, electron mobility, active sites, surface areaSurface area, thermal, chemical, and structure stabilityStability make them suitable for their photocatalytic role in water splitting, degradation of pollutant and CO2 reductionCO reduction. These materials have also possessed cocatalyst potential to form a hybrid system in conjunction with other photocatalytic materials and serve as support for metal/metal oxide/nanoparticles. This book chapter enlightens the potential of various TM-LDHSs in photocatalytic applications such as the organic pollutants (dye/drug/solvents) degradation, CO2 reductionCO reduction, overall water splittingOverall water splitting (OWS), hydrogen evolution reactionHydrogen evolution reaction (HER), oxygen evolution reactionOxygen evolution reaction (OER). With an emphasis on synthesis strategies utilizing different LDH photocatalyst materials, influencing parameters and potential mechanisms involved in different photocatalysis to synthesize useful fuels, chemicals like CO, CH4, CH3OH, and H2, and purification of wastewater.