ZrMO X Particles for Enhanced Removal of Methyl Orange from Wastewater: Preparation, Characterization, and Adsorption Study

• Published in: Adsorption science & technology 2022-01, Vol.2022
• Main Authors: Yang, Hao, Sun, Yulong, Zhang, Qi, Pu, Yanfeng, Wang, Jianhong, Cao, Leichang, Zhou, Shuaishuai, Li, Qian, Qiao, Congzhen
• Format: Article
• Language: English
• ISSN: 0263-6174; 2048-4038
• DOI: 10.1155/2022/9685352

The wide application of organic dyes in many industries has brought challenges to the effective treatment of organic wastewater. In this study, a series of ZrMO X (M: Fe, Co, Ni, Cu) particles were prepared by the coprecipitation method to adsorb methyl orange (MO) in aqueous solution. The adsorbents were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and N 2 adsorption-desorption. The selected adsorbent with the best adsorption performance was ZrFeO X with a molar ratio of 1 : 1 and calcination temperature of 573 K; the maximum adsorption capacity was 138.95 mg·g -1 . The adsorption behavior of MO onto the adsorbent was studied as a function of contact time, initial concentrations, adsorption temperature, and pH conditions. The analysis results showed that pseudo-second-order, Elovich, and Langmuir models were suitable to describe the adsorption behavior of MO on the adsorbent. In addition, regeneration experiments presented that the MO removal rate reached over 96% after repeated recycling for 5 times. The adsorbent developed in this work is not only simple to prepare and low cost but also green and energy-saving, which can make some contributions to environmental governance.