Photocatalytic Degradation of Methyl Orange from Aqueous Solution Using ZnO by Response Surface Methodology

IF 2.8 3区化学 Q2 CHEMISTRY, APPLIED

Topics in Catalysis Pub Date : 2024-05-30 DOI:10.1007/s11244-024-01969-x

Muhammad Asif, Muhammad Shafiq, Faiza Imtiaz, Sheraz Ahmed, Abdulrahman Ali Alazba, Hafiz Nawaz Hussain, Farah Nemat Butt, Syeda Alvia Zainab, Muhammad Kashif Khan, Muhammad Bilal

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Abstract

Pollution from dye-containing industrial wastewater is a major health hazard in many nations, necessitating modern remediation approaches. Herein, zinc oxide (ZnO) was employed to degrade methyl orange (MO) as an organic dye pollutant under UV light irradiation. The performance was observed experimentally and theoretically under optimized conditions including the pH (11), the concentration of the nanoparticle solution (900 ppm), and time (3 h), resulting in a degradation efficiency of 89.6%. Furthermore, the influence of various parameters on MO degradation was evaluated by response surface methodology (RSM). X-ray diffraction (XRD) and transmission electron microscopy (TEM) was performed to investigate the crystallinity and morphological behavior of ZnO-NPs. In addition, the surface chemical composition was evaluated by the XPS analysis. This study evaluates the degradation efficiency of ~ 90% using single metal oxide to degrade MO, opening new opportunities for environmental applications.

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响应面方法学：利用氧化锌对水溶液中的甲基橙进行光催化降解

在许多国家，含染料工业废水的污染是对健康的一大危害，因此需要采用现代化的治理方法。本文采用氧化锌（ZnO）在紫外光照射下降解有机染料污染物甲基橙（MO）。在 pH 值（11）、纳米粒子溶液浓度（900 ppm）和时间（3 h）等优化条件下，实验和理论观察了其性能，结果表明降解效率为 89.6%。此外，还利用响应面法（RSM）评估了各种参数对 MO 降解的影响。通过 X 射线衍射（XRD）和透射电子显微镜（TEM）研究了 ZnO-NPs 的结晶度和形态行为。此外，还通过 XPS 分析评估了表面化学成分。这项研究评估了使用单一金属氧化物降解 MO 的降解效率约为 90%，为环境应用带来了新的机遇。

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来源期刊

Topics in Catalysis 化学-物理化学

CiteScore

5.70

自引率

5.60%

发文量

197

审稿时长

2 months

期刊介绍： Topics in Catalysis publishes topical collections in all fields of catalysis which are composed only of invited articles from leading authors. The journal documents today’s emerging and critical trends in all branches of catalysis. Each themed issue is organized by renowned Guest Editors in collaboration with the Editors-in-Chief. Proposals for new topics are welcome and should be submitted directly to the Editors-in-Chief. The publication of individual uninvited original research articles can be sent to our sister journal Catalysis Letters. This journal aims for rapid publication of high-impact original research articles in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.