Sodium Carboxymethyl Cellulose and Fe-Modified Nano-FeS for Enhancing Sorption of Thallium from Water

Huang, Xuexia; Huang, Qisheng; Luo, Dinggui; Wu, Qihang; Arulmani, Samuel Raj Babu; Xiao, Tangfu; Zhang, Hongguo; Huang, Lei

Sodium Carboxymethyl Cellulose and Fe-Modified Nano-FeS for Enhancing Sorption of Thallium from Water

2022

Due to the high toxicity of thallium (Tl), Tl-containing wastewater has caused severe environmental problems. In this study, we have developed a new sodium carboxymethyl cellulose (CMC)–modified nano-FeS material (CMC-FeS) as adsorben to remove Tl(I) from water. The adsorbents are compared with the adsorbents of ferrous sulfide-zero valent iron composite (FeS-Fe). The physical and chemical properties of the adsorbents were studied by scanning electron microscopy (SEM) and X-ray powder diffraction (XRD). These adsorption experiments show that the adsorption capacity could reach 86.97 mg/g at a CMC-FeS dosage of 2 g/L. The influence of different pH, solid–liquid ratios, co-existing ions, and temperature on the adsorbent has been investigated. The results show that the adsorbent is a potential adsorbent and the modified method by using sodium carboxymethyl cellulose is a very effective method for removing thallium.

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