超声合成ZnO-TiO2纳米复合材料与常规方法降解亚甲基蓝染料的比较研究

IF 0.5 4区工程技术 Q4 CHEMISTRY, APPLIED

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI:10.56042/ijct.v30i5.5200

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引用次数: 0

摘要

采用超声辅助和常规方法合成了ZnO-TiO2纳米复合材料(ZTN)。XRD、FTIR、BET、FESEM、EDS、uv -可见等表征技术证实了ZTN的成功形成。以亚甲基蓝(MB)染料为污染物，考察了ZTN的光催化活性和动力学。研究了各种因素，如合成工艺、催化剂负载、染料初始浓度、温度和pH，以确定它们对染料降解的影响。与常规合成的ZTN相比，超声合成的ZTN具有更好的光催化活性。在光催化剂用量为1 g/L、染料浓度为20 ppm、pH为10、温度为55℃的条件下，染料降解率最高，达到97.69%。此外，动力学研究表明，ZTN对染料的降解符合二级动力学模型。

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Comparative study of ZnO-TiO2 nanocomposites synthesized by ultrasound and conventional methods for the degradation of methylene blue dye

ZnO-TiO2 nanocomposites (ZTN) have been synthesized using both ultrasound-assisted and conventional methods. The characterization techniques like XRD, FTIR, BET, FESEM, EDS, and UV-visible confirmed that the ZTN is successfully formed. The photocatalytic activity and kinetics of the ZTN are assessed using methylene blue (MB) dye as a pollutant. Various factors such as synthesis processes, catalyst loading, initial dye concentration, temperature, and pH have been investigated to determine their impact on dye degradation. The ZTN synthesized with ultrasound exhibited superior photocatalytic activity compared to the conventionally synthesized ZTN. The highest dye degradation (97.69%) was observed under the optimum conditions of 1 g/L photocatalyst dosage, 20 ppm dye concentration, pH 10, and a temperature of 55℃. Additionally, the kinetic study revealed that the degradation of the dye by ZTN followed a second-order kinetic model.

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来源期刊

Indian Journal of Chemical Technology 工程技术-工程：化工

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Indian Journal of Chemical Technology has established itself as the leading journal in the exciting field of chemical engineering and technology. It is intended for rapid communication of knowledge and experience to engineers and scientists working in the area of research development or practical application of chemical technology. This bimonthly journal includes novel and original research findings as well as reviews in the areas related to – Chemical Engineering, Catalysis, Leather Processing, Polymerization, Membrane Separation, Pharmaceuticals and Drugs, Agrochemicals, Reaction Engineering, Biochemical Engineering, Petroleum Technology, Corrosion & Metallurgy and Applied Chemistry.