Adsorptive Removal of Volatile Organic Compounds from Industrial Effluent Using Synthesized ZnO-CA Composite Base Adsorbent

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-11-27 DOI:10.18596/jotcsa.1247149

M. Bamigboye, Ayinla Ibrahim Kuranga, Orimolade Benjami̇n, Ayuba Mustapha, Olayinka Ojo, Jamiu Wasi̇u, Aishat A Abdulgani̇y, Hameeda Sinmiloluwa Oba

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Abstract

In this study, a composite adsorbent consisting of ZnO nanoparticles and cellulose acetate nanoparticles was prepared. The composite was extensively characterized through Scanning electron microscopy (SEM), Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDX), and Brunnaeur Emmet Teller analysis (BET). Batch adsorption experiments were carried out to study the effects of concentration of adsorbate (10- 80 mL), dose of adsorbent (0.1 – 1 g), pH(3-13), contact or exposure time (30-180 minutes) and temperature(30 - 70℃) on the removal of benzene and toluene using the synthesized adsorbent. The pseudo-second-order model well described the kinetics of adsorption studied, and Langmuir's isotherm best described the isotherm modeling of the adsorption data. Thermodynamic studies revealed that all the adsorption processes are feasible, endothermic, and spontaneous. The prepared adsorbent is suitable for removing benzene and toluene from wastewater.

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利用合成 ZnO-CA 复合基质吸附剂吸附去除工业废水中的挥发性有机化合物

本研究制备了一种由氧化锌纳米颗粒和醋酸纤维素纳米颗粒组成的复合吸附剂。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、能量色散 X 射线光谱（EDX）和布鲁内尔-艾美特-特勒分析（BET）对该复合材料进行了广泛表征。批量吸附实验研究了吸附剂浓度（10- 80 mL）、吸附剂剂量（0.1- 1 g）、pH 值（3-13）、接触或暴露时间（30-180 分钟）和温度（30-70℃）对合成吸附剂去除苯和甲苯的影响。伪二阶模型很好地描述了所研究的吸附动力学，朗缪尔等温线最好地描述了吸附数据的等温线模型。热力学研究表明，所有的吸附过程都是可行的、内热的和自发的。所制备的吸附剂适用于去除废水中的苯和甲苯。

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Journal of the Turkish Chemical Society Section A: Chemistry

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