Sr掺杂对喷涂技术制备的NiO薄膜结构、形貌、光学、光催化和抗真菌性能的影响

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2025-02-05 DOI:10.1016/j.cap.2025.02.001

Srinivasa N. V , Basavaraj Angadi , Mahesh H. M , Srinivas C , Rajganesh M

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引用次数: 0

摘要

金属氧化物纳米颗粒已被公认为是有效的、环境友好的替代品，可用于各种行业，包括食品、染料、制药、化学和环境处理。鉴于金属氧化物薄膜在这些领域的广泛应用，目前的工作报道了利用环保喷雾热解技术成功合成纳米晶sr掺杂NiO薄膜，用于光催化降解废水处理中的溴酚蓝污染物。采用XRD、Raman、FTIR、FESEM、UV-Vis、PL等技术对膜进行了表征。XRD分析表明，随着掺杂浓度的增加，晶粒尺寸从14 nm减小到9 nm。FTIR和拉曼分析确定了表面氧间隙和Ni缺陷相关的振动。FESEM显示出连续的球形多晶表面膜。在UV-Vis数据中观察到Sr掺杂剂的掺入增加了透光率和带隙。PL分析表明，随着掺杂剂浓度的增加，PL强度的降低表明复合速率受到抑制。用溴酚蓝（BB）评价了sr掺杂膜在紫外可见照射下的光催化活性。6% sr掺杂膜成功地分解了81%的BB，证明了它们作为催化剂的有效性。此外，这些薄膜表现出较低的复合率，较小的颗粒尺寸和较高的表面粗糙度。6% sr掺杂样品对黑曲霉和青霉的抑制区最高，分别为25 mm和23 mm。总的来说，掺锶的NiO膜在降解BB和抗真菌活性方面都是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Investigation of Sr doping on structural, morphological, optical, photocatalytic and antifungal properties of NiO thin films prepared by spray coating technique

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Investigation of Sr doping on structural, morphological, optical, photocatalytic and antifungal properties of NiO thin films prepared by spray coating technique

Metal oxide nanoparticles have been recognized as efficient, environmentally friendly alternatives to currently available materials for various industries, including food, dye, pharmaceutical, chemical, and environmental treatment. Given the extensive use of metal oxide thin films across these fields, the current work reports the successful synthesis of nanocrystalline Sr-doped NiO films using an eco-friendly spray pyrolysis technique for the photocatalytic degradation of Bromophenol Blue pollutant in wastewater treatment. These films were characterized by XRD, Raman, FTIR, FESEM, UV–Vis, and PL techniques. XRD analysis reveals that the crystallite size decreases from 14 nm to 9 nm as the dopant concentration increases. FTIR and Raman analyses identified surface oxygen interstitials and Ni defect-related vibrations. FESEM showed a continuous surface film with spherical polycrystalline morphology. An increase in optical transmittance and bandgap with the incorporation of Sr dopant was observed in the UV–Vis data. A decrease in PL intensity with increasing dopant concentration suggests a suppression of the recombination rate, as indicated by the PL analysis. The photocatalytic activity of the Sr-doped films was evaluated with Bromophenol Blue (BB) under UV–visible irradiation. The 6 % Sr-doped films successfully decomposed 81 % of the BB, demonstrating their effectiveness as catalysts. Additionally, these films exhibited a lower recombination rate, smaller particle size, and higher surface roughness. The 6 % Sr-doped sample showed the highest zones of inhibition, measuring 25 mm and 23 mm for Aspergillus Niger and Penicillium fungi, respectively. Overall, the Sr-doped NiO films were found to be effective in both the degradation of BB and antifungal activity.

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.