NaY沸石和TiO2浸渍的NaY沸石在日光下对亚甲基蓝的吸附和光催化降解

IF 1 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-08-07 DOI:10.30492/IJCCE.2021.128624.4168

Baouali Nazim Younes, Nibou Djamel, A. Samira

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引用次数: 1

摘要

采用TiO2浸渍NaY分子筛制备新型亚甲基蓝(MB)吸附光催化降解催化剂。采用XRD、SEM、EDS、FTIR等技术对样品进行了表征。在优化条件([MB] = 10 mg/L, pH = 6, S/L = 2 mg/L，温度= 25℃)下，MB在NaY上的吸附率达到88%，吸附量为6.55 mg/g。吸附过程遵循Langmuir等温线。热力学参数的研究表明，这是一个吸热和物理过程。MB的吸附也遵循准二级动力学。在TiO2/NaY催化剂上成功地完成了MB染料在日光下的光降解。MB光降解也遵循Langmuir-Hinshelwood一级动力学。

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NaY zeolite and TiO2 impregnated NaY zeolite for the adsorption and photocatalytic degradation of Methylene blue under Sunlight

NaY zeolite was impregnated by TiO2 to prepare novel catalyst for the adsorption and photocatalytic degradation of methylene blue (MB). The samples were characterized by XRD, SEM, EDS and FTIR techniques. The percentage adsorption of MB on NaY reaches 88% and adsorption capacity of 6.55 mg/g under optimized parameters ([MB] = 10 mg/L, pH = 6, S/L = 2 mg/L and T = 25°C). The MB adsorption process follows Langmuir isotherm. The thermodynamic parameters were investigated and showed an endothermic and physical process. The MB adsorption also follows a pseudo second-order kinetic. The photo-degradation of the MB dye was successfully carried out on the TiO2/NaY catalyst under sunlight. The MB photo-degradation also follows a Langmuir-Hinshelwood first-order kinetic.

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来源期刊

Iranian Journal of Chemistry & Chemical Engineering-international English Edition CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

2.80

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： The aim of the Iranian Journal of Chemistry and Chemical Engineering is to foster the growth of educational, scientific and Industrial Research activities among chemists and chemical engineers and to provide a medium for mutual communication and relations between Iranian academia and the industry on the one hand, and the world the scientific community on the other.