Use of Synthetic Iron Oxide-Doped Titanium Dioxide Nanoparticles in Photocatalytic Degradation of BTX from Petroleum Wastewater

IF 0.6 4区化学 Q4 CHEMISTRY, APPLIED Russian Journal of Applied Chemistry Pub Date : 2024-06-22 DOI:10.1134/s1070427224010154

Firdos M. Abdulla, Zainab Y. Shnain, Asawer A. Alwaisit, Mohammad F. Abid

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Abstract

The aim of the work is to investigate the use of synthetic doped catalyst in the removal of benzene, toluene, and xylene (BTX) from petroleum wastewater by photocatalyst process in a circular column reactor. Fe₂O₃-doped anatase TiO₂ with 10 nm average grain size was synthesized by the impregnation method. The prepared doped catalyst was characterized using energy-dispersive X-ray (EDS), scanning electron microscopy (SEM), Surface Area Analysis using the Brunauer–Emmett–Teller (BET), Fourier transforms infrared spectroscopy (FTIR) beforehand with XRD. Then it is evaluated in a photocatalyst process A which was done in a circular column with dimensions of 70 mm diameter and 390 mm height, under visible light. The study also shows the influence of pH, light intensity and residence time on the BTX removal. The experiment was carried out under different values of pH (3‒11), light intensity 14‒42 W and irradiation time 30‒120 min. The results show that the maximum removal efficiency was 90% when pH 6.5, 42 W light intensity and after 120 min. The kinetic model as well as Adsorption isotherm were also studied.

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利用合成氧化铁掺杂二氧化钛纳米粒子光催化降解石油废水中的 BTX

摘要本研究旨在探讨在圆柱反应器中采用光催化剂工艺，利用合成掺杂催化剂去除石油废水中的苯、甲苯和二甲苯（BTX）。采用浸渍法合成了平均粒径为 10 纳米的掺杂 Fe2O3 的锐钛矿二氧化钛。制备好的掺杂催化剂使用能量色散 X 射线 (EDS)、扫描电子显微镜 (SEM)、Brunauer-Emmett-Teller (BET) 表面积分析、傅立叶变换红外光谱 (FTIR) 和 XRD 进行表征。然后，在光催化剂 A 过程中对其进行评估，该过程是在直径 70 毫米、高 390 毫米的圆形柱中，在可见光下进行的。研究还显示了 pH 值、光照强度和停留时间对 BTX 去除率的影响。实验是在不同的 pH 值（3-11）、光照强度 14-42 W 和照射时间 30-120 分钟的条件下进行的。结果表明，当 pH 值为 6.5、光照强度为 42 W、辐照时间为 120 分钟时，BTX 的最大去除率为 90%。此外，还研究了动力学模型和吸附等温线。

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来源期刊

Russian Journal of Applied Chemistry 化学-应用化学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

2-4 weeks

期刊介绍： Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.