Removal of Tetracycline from Aqueous Solution Using Nanocomposite Based on Polyanion-Modified Laterite Material

Thi Hau Vu; Thi Mai Viet Ngo; Thi Tu Anh Duong; Thi Hien Lan Nguyen; Xuan Truong Mai; Thi Hong Nguyet Pham; Thi Phuong Le; Thi Hue Tran

doi:10.1155/2020/6623511

Removal of Tetracycline from Aqueous Solution Using Nanocomposite Based on Polyanion-Modified Laterite Material

J Anal Methods Chem. 2020 Dec 11:2020:6623511. doi: 10.1155/2020/6623511. eCollection 2020.

Authors

Thi Hau Vu¹, Thi Mai Viet Ngo¹, Thi Tu Anh Duong¹, Thi Hien Lan Nguyen¹, Xuan Truong Mai¹, Thi Hong Nguyet Pham¹, Thi Phuong Le¹, Thi Hue Tran¹

Affiliation

¹ Thai Nguyen University of Education, Thai Nguyen University, 20 Luong Ngoc Quyen, Quang Trung, Thai Nguyen, Vietnam.

Abstract

This work investigated the removal of antibiotic tetracycline (TC) from wastewater using nanocomposite material based on laterite modified with polyanion, polystyrene sulfonate (PSS). The effective factors influenced on the TC removal using nanocomposite PSS-modified laterite (NCPML) were optimized and found to be pH 4, solid-liquid ratio 5 mg/mL, and contact time 180 min. The highest removal of TC reached about 88% under the optimum adsorption conditions. The adsorption isotherm and kinetics of TC adsorption onto NCPML were in good agreement with the Langmuir and pseudo-second-order models, respectively. The characteristics of the NCPML material before and after TC adsorption were examined by zeta (ζ) potential measurements, Brunauer-Emmett-Teller (BET) method, and Fourier transform infrared spectroscopy (FT-IR). The TC adsorption onto NCPML was induced by electrostatic interaction, hydrogen bonding, and diffusion interaction. The TC removal from wastewater was approximately 94% while efficiency still reached 66% after five regenerations. Our research reveals that NCPML is a high-performance adsorbent for TC removal from wastewater.