Removal of 2,4,6-trichlorophenol from water by Eupatorium adenophorum biochar-loaded nano-iron/nickel.

Author(s) Liu, G.; Tang, H.; Fan, J.; Xie, Z.; He, T.; Shi, R.; Liao, B.
Journal Bioresour Technol
Date Published 2019 Oct
Abstract

From the perspective of waste utilization, the invasive species, Eupatorium adenophorum was used to prepare biochar, which was then loaded with iron/nickel bimetals. Compared with pure biochar, the biochar-loaded nano-iron/nickel bimetals have a significant effect on the removal of 2,4,6-trichlorophenol (2,4,6-TCP) from water, and their degradation rate can be increased by 39.7%-71.6% under different conditions. Several factors can influence the removal of 2,4,6-TCP, including the load ratio, pH of the solution, concentration of 2,4,6-TCP, and coexisting ions in water (HCO, SO4, NO). Based on the density functional model (DET), Ni can activate H (produced in the reaction between nano-Fe and HO) to convert to H, which can then substitute Cl. The activation energy is 109.5 kJ/mol, indicating the reaction is easy to take place.

DOI 10.1016/j.biortech.2019.121734
ISSN 1873-2976
Citation Liu G, Tang H, Fan J, Xie Z, He T, Shi R, et al. Removal of 2,4,6-trichlorophenol from water by Eupatorium adenophorum biochar-loaded nano-iron/nickel. Bioresour Technol. 2019;289:121734.