Incorporation of iodine on Ag3PO4 under Nigella Sativa seed extract for enhanced photocatalytic activity

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2025-02-01 DOI:10.1016/j.solidstatesciences.2025.107836

Uyi Sulaeman , Dea Ajeng Rahma Winarto Putri , Rini Larasati , Eva Vaulina Yulistia Delsy , Isnaeni Isnaeni , Shu Yin

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Abstract

The iodine dopant in photocatalysts has new challenges in improving photocatalytic activity. Here, iodine incorporation in Ag₃PO₄ under potassium iodide (KI) and Nigella sativa seed extract has been successfully prepared using the coprecipitation method. The preparation utilized the starting material of Na₂HPO₄.12H₂O, AgNO₃, Nigella sativa seed extract, and KI with variation concentration as sources of iodine dopant. The results revealed that KI addition causes significant changes in the UV-DRS absorption, PL spectra, FTIR, and Raman spectra. The lower concentration of KI treatment resulted in a more effective iodine dopant in the Ag₃PO₄ surface. This treatment lowers the d-space of the Ag₃PO₄ crystal, increases the bandgap energy, and decreases the P/Ag atomic ratio, resulting in I-doped Ag₃PO₄ with phosphate deficiency. The photocatalytic activity showed a significant effect on the degradation of Rhodamine B (RhB), Methylene Blue (MB), and Methyl Orange (MO). This excellent photocatalytic activity is mainly due to a higher active species of holes and superoxide anion radicals.

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在黑芝麻种子提取物Ag3PO4上掺入碘增强光催化活性

光催化剂中碘的掺杂对提高光催化活性提出了新的挑战。本文采用共沉淀法，在碘化钾（KI）和黑草种子提取物的作用下，成功制备了Ag3PO4中碘的掺杂。以Na2HPO4.12H2O、AgNO3、Nigella sativa籽提取物和不同浓度的KI为原料制备碘掺杂剂。结果表明，KI的加入引起了UV-DRS吸收、PL光谱、FTIR和Raman光谱的显著变化。较低浓度的KI处理使Ag3PO4表面的碘掺杂更有效。该处理降低了Ag3PO4晶体的d空间，增加了带隙能量，降低了P/Ag原子比，导致掺i的Ag3PO4缺磷。光催化活性对罗丹明B （RhB）、亚甲基蓝（MB）和甲基橙（MO）的降解有显著影响。这种优异的光催化活性主要是由于具有较高活性的空穴种类和超氧阴离子自由基。

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.