坡缕石-TiO2纳米催化剂光催化降解水中戊唑醇

IF 1.7 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Water and Environment Journal Pub Date : 2023-01-06 DOI:10.1111/wej.12842
E. Gianni, D. Panagiotaras, I. Giannakis, D. Papoulis, V. Bekiari, G. Panagopoulos, P. Petrounias, Alexandros Kalarakis
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引用次数: 1

摘要

坡缕石–TiO2纳米颗粒经常用作纳米催化剂。在本研究中,基于不同坡缕石-TiO2比例的使用,开发了两种不同的纳米催化剂:40–60和10–90。研究了纳米复合材料在水生条件下对常用杀菌剂戊唑醇(TEB)的光催化降解作用。通过X射线粉末衍射、衰减全反射-傅立叶变换红外光谱、扫描电子显微镜和Brunauer–Emmett–Teller(BET)分析技术对样品进行了广泛表征。TiO2纳米粒子成功地分散在矿物表面,当坡缕石与TiO2的比例为40:60时,光催化活性达到88.4%,总孔体积和BET参数(0.49 cm3/g和258 m2/g,而0.33 cm3/g和220 m2/g的10:90比例)。所提出的材料的光催化效率显著高于Degussa P25(33.2%),这使得坡缕石–TiO2纳米复合材料在杀菌剂在水生环境中的降解方面非常有前景。
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Palygorskite–TiO2 nanocatalysts for photocatalytic degradation of tebuconazole in water
Palygorskite–TiO2 nanoparticles are frequently used as nanocatalysts. In the present study, two different nanocatalysts were developed based on the use of different palygorskite–TiO2 ratios: 40–60 and 10–90. The nanocomposites were investigated for the photocatalytic degradation of the common fungicide tebuconazole (TEB), under aquatic conditions. The samples were extensively characterized by X‐ray powder diffraction, attenuated total reflectance–Fourier transform infrared spectroscopy, scanning electron microscopy and N2 specific surface area (SSA) by Brunauer–Emmett–Teller (BET) analytical techniques. The TiO2 nanoparticles were successfully dispersed on the mineral's surfaces and the photocatalytic activity reached 88.4% for the palygorskite–TiO2 ratio of 40:60, where the dispersion was better as proved by the total pore volume and BET parameters (0.49 cm3/g and 258 m2/g compared to 0.33 cm3/g and 220 m2/g of the 10:90 ratio). The photocatalytic efficiency of the proposed materials was significantly higher than Degussa P25 (33.2%), and that makes the palygorskite–TiO2 nanocomposites very promising for advanced application in fungicides' degradation in aquatic environments.
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来源期刊
Water and Environment Journal
Water and Environment Journal 环境科学-湖沼学
CiteScore
4.80
自引率
0.00%
发文量
67
审稿时长
18-36 weeks
期刊介绍: Water and Environment Journal is an internationally recognised peer reviewed Journal for the dissemination of innovations and solutions focussed on enhancing water management best practice. Water and Environment Journal is available to over 12,000 institutions with a further 7,000 copies physically distributed to the Chartered Institution of Water and Environmental Management (CIWEM) membership, comprised of environment sector professionals based across the value chain (utilities, consultancy, technology suppliers, regulators, government and NGOs). As such, the journal provides a conduit between academics and practitioners. We therefore particularly encourage contributions focussed at the interface between academia and industry, which deliver industrially impactful applied research underpinned by scientific evidence. We are keen to attract papers on a broad range of subjects including: -Water and wastewater treatment for agricultural, municipal and industrial applications -Sludge treatment including processing, storage and management -Water recycling -Urban and stormwater management -Integrated water management strategies -Water infrastructure and distribution -Climate change mitigation including management of impacts on agriculture, urban areas and infrastructure
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