Simultaneous treatment of oil and dye-contaminated water by a novel composite

IF 2.5 4区材料科学 Q2 CHEMISTRY, APPLIED

Journal of Porous Materials Pub Date : 2024-04-24 DOI:10.1007/s10934-024-01613-9

Deepika P. Joshi, Vivek Negi, Neetu Bora

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引用次数: 0

Abstract

Expanded Graphite (EG) has been widely used for treating oil-polluted water. Removal of dye pigments from oily wastewater is the biggest challenge for paint industries. So, the present work focuses on treating simultaneously oil and dye-contaminated water by introducing TiO₂/EG composite. EG samples with the highest exfoliation volume have been prepared by microwave irradiation by optimizing time and tested through an oil adsorption study with different oils. TiO₂ NPs have been synthesized by the sol–gel method. A novel EG/TiO₂ composite has been synthesized by mixing TiO₂ NPs in graphite intercalation compound (precursor) and exfoliating the mixture for the optimized irradiation time. A comparative study of the effect of EG, TiO₂ NPs, and EG3/TiO₂ composite on oil and dye-polluted water has been performed in direct sunlight. Results of UV–visible spectroscopy showed that the addition of TiO₂ NPs with EG accomplished the dye degradation along with the adsorption of oil from polluted water.

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利用新型复合材料同时处理油类和染料污染的水体

膨胀石墨（EG）已被广泛用于处理油污染水。从含油废水中去除染料颜料是涂料行业面临的最大挑战。因此，本研究的重点是通过引入 TiO2/EG 复合材料同时处理油和染料污染的水。通过优化时间，用微波辐照制备了剥离量最大的 EG 样品，并通过不同油类的油吸附研究进行了测试。TiO2 NPs 是通过溶胶-凝胶法合成的。通过将 TiO2 NPs 与石墨插层化合物（前驱体）混合，并在优化的辐照时间内对混合物进行剥离，合成了一种新型 EG/TiO2 复合材料。在阳光直射下，对 EG、TiO2 NPs 和 EG3/TiO2 复合材料对油和染料污染水的影响进行了比较研究。紫外-可见光谱结果表明，在 EG 中加入 TiO2 NPs 在降解染料的同时还吸附了污染水中的油。

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来源期刊

Journal of Porous Materials 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.70%

发文量

203

审稿时长

2.6 months

期刊介绍： The Journal of Porous Materials is an interdisciplinary and international periodical devoted to all types of porous materials. Its aim is the rapid publication of high quality, peer-reviewed papers focused on the synthesis, processing, characterization and property evaluation of all porous materials. The objective is to establish a unique journal that will serve as a principal means of communication for the growing interdisciplinary field of porous materials. Porous materials include microporous materials with 50 nm pores. Examples of microporous materials are natural and synthetic molecular sieves, cationic and anionic clays, pillared clays, tobermorites, pillared Zr and Ti phosphates, spherosilicates, carbons, porous polymers, xerogels, etc. Mesoporous materials include synthetic molecular sieves, xerogels, aerogels, glasses, glass ceramics, porous polymers, etc.; while macroporous materials include ceramics, glass ceramics, porous polymers, aerogels, cement, etc. The porous materials can be crystalline, semicrystalline or noncrystalline, or combinations thereof. They can also be either organic, inorganic, or their composites. The overall objective of the journal is the establishment of one main forum covering the basic and applied aspects of all porous materials.