Abstract

An eco-friendly and novel water treatment material was synthesized using sodium lignosulfonate modified polystyrene (SLPS), which can be used to eliminate phenols in aqueous solution. SLPS was characterized by BET, FTIR, SEM, and EDS. The effect of the initial pH value, phenol content, adsorption time, and temperature on the absorbability of phenol in SLPS was investigated through adsorption experiments. It was found that SLPS could efficiently adsorb phenol in aqueous solution at a pH value of about 7. The test results revealed that the kinetic adsorption and isotherm adsorption could be successfully described using the pseudo second-order and Langmuir models, respectively. It was illustrated that the phenol adsorption on SLPS was dominated by chemisorption and belonged to monolayer adsorption. The max. phenol adsorption value of SLPS was 31.08 mg/g at 30 °C. Therefore, SLPS displayed a great potential for eliminating phenol from polluted water as a kind of novel and effective adsorbent.

Highlights

  • Phenol and phenolic compounds are important organic intermediate chemicals obtained from industrial processes, and are widely used in the industrial production of petrochemicals, oil refining, pesticides, disinfectors, and synthetic resin [1,2,3,4,5,6]

  • The microstructure of Chloromethyl polystyrene (CPS) and sodium lignosulfonate modified polystyrene (SLPS) was characterized by SEM

  • The water treatment material (SLPS) was successfully synthesized using sodium lignosulfonate modified polystyrene that was functionalized with amine groups

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Summary

Introduction

Phenol and phenolic compounds are important organic intermediate chemicals obtained from industrial processes, and are widely used in the industrial production of petrochemicals, oil refining, pesticides, disinfectors, and synthetic resin [1,2,3,4,5,6]. Phenol can harm human health, potentially causing acute and chronic diseases [14]. Adverse effects in the lungs, suicidal death in red blood cells, and comas at lethal doses in humans [17,18,19,20]. It can be inhaled or absorbed through the skin and digestive system, even at very low doses, in water [21]. It is necessary to remove phenol from industrial wastewater before discharging it, in order to protect the water ecological environment and sustain human physical health

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