Synthesis and characterization of TiO2/ZnO/SiO2 nanocomposite using pyrrolidinium-based ionic liquids via sol–gel-hydrothermal method for photocatalytic removal of Pb (II) ions

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-09-28 DOI:10.1016/j.mseb.2024.117735

Dadan Hadian , Anita Alni , Aep Patah , Nurrahmi Handayani , Muhammad Ali Zulfikar

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Abstract

This study aims to synthesize TiO₂ with precise particle morphology, a large surface area, a stable anatase phase at high temperatures, and enhanced catalytic activity in the visible light spectrum. TiO₂ was combined with ZnO and SiO₂ to form a TiO₂/ZnO/SiO₂ composite (TZS). A TiO₂/ZnO/SiO₂ composite (TZS) was synthesized via sol–gel-hydrothermal method at 180 °C for 24 h employing a water-pyrrolidinium-based ionic liquid mixture. XRD analysis confirmed anatase, zincite, and amorphous silica phases post-calcination at 450 °C. Compared to water alone, TZS synthesized with the water-ILs media exhibited higher surface area and narrower band gap energy. TG-DTA analysis confirmed anatase phase stability up to 1000 °C. SEM and TEM images showed TZS particles synthesized using water as spherical, while the water-ILs mixture produced nanocoral, nanorod, and nanocubic morphologies. In photocatalysis, TZS synthesized with water-ILs removed Pb(II) ions by 99.98 %, surpassing water-synthesized TZS at 95.49 % indicating superior photocatalytic of TZS synthesized with water-ILs.

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通过溶胶-凝胶-水热法利用吡咯烷基离子液体合成 TiO2/ZnO/SiO2 纳米复合材料并确定其特性，用于光催化去除铅 (II) 离子

本研究旨在合成具有精确颗粒形貌、大表面积、高温下稳定的锐钛矿相以及增强可见光光谱催化活性的二氧化钛。TiO2 与 ZnO 和 SiO2 结合形成了 TiO2/ZnO/SiO2 复合材料（TZS）。采用水-吡咯烷基离子液体混合物，通过溶胶-凝胶-水热法在 180 °C 下合成 TiO2/ZnO/SiO2 复合材料（TZS）24 小时。在 450 °C 煅烧后，XRD 分析证实了锐钛矿、锌矿和无定形二氧化硅相。与单独用水相比，用水-离子液体介质合成的 TZS 具有更高的表面积和更窄的带隙能。TG-DTA 分析证实锐钛矿相的稳定性可达 1000 ℃。SEM 和 TEM 图像显示，用水合成的 TZS 颗粒呈球形，而水-ILS 混合物则产生了纳米珊瑚形、纳米棒形和纳米立方体形。在光催化过程中，用水-ILS 合成的 TZS 对铅（II）离子的去除率为 99.98%，超过用水合成的 TZS 的 95.49%，这表明用水-ILS 合成的 TZS 具有更优越的光催化性能。

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来源期刊

Materials Science and Engineering B-advanced Functional Solid-state Materials 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.