Effects of Sm and point defects (VZn, VO, Hi) at different valence states on the electronic structure and photocatalytic properties of ZnO

Yang, Airong; Hou, Qingyu; Qi, Mude; Zhang, Yanxia

doi:10.1016/j.mtcomm.2023.105451

Cited by 1 publication

(1 citation statement)

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“…These Ov trap the excited electrons and improve charge separation for the enhancement of photocatalytic activities of the semiconductors. [21] Defects may alter the electronic structure of a catalyst, affecting its catalytic activity. Substitutional defects, where another substitutes one atom, may change the catalyst's electronic states and modify its reactivity to particular reactants.…”

Section: Physical or Chemical Effects Of Defects In Nanocatalystmentioning

confidence: 99%

Defect Engineering in Nanocatalysts: From Design and Synthesis to Applications

Muhammad,

Zada,

Rashid

et al. 2024

Adv Funct Materials

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Defect engineering is an emerging technology for tailoring nanomaterials' characteristics and catalytic performance in various applications. Recently, defect‐engineered nanoparticles have emerged as highly researched materials in catalytic applications because of their exceptional redox reaction capabilities and physicochemical and optical properties. The properties of nanomaterials can be readily adjusted by controlling the nature and concentration of defects within the nanoparticles, avoiding the need for intricate design strategies. This review investigates defect engineering in nanocatalysts, including the design, fabrication, and applications. Initially, the various categories and strategies of nanomaterial defects and their impacts on the nanocatalysts' electronic and surface properties, catalytic activity, selectivity, and stability are summarized. Then, the catalytic processes and their uses, including gas sensing, hydrogen (H2) evolutions, water splitting, reductions of carbon dioxide (CO2) and nitrogen to value‐aided products, pollutant degradation, and biomedical (oncotherapy, antibacterial and wound healing, and biomolecular sensing) applications are discussed. Finally, the limitations in defect engineering and the prospective paths for allowing the logical design and optimization of nanocatalytic materials for long‐term and efficient applications are also examined. This comprehensive review gives unique insights into the current state of defect engineering in nanocatalysts and inspires future research on exploiting shortcomings to improve and customize catalytic performance.

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Section: Physical or Chemical Effects Of Defects In Nanocatalystmentioning

confidence: 99%