Alkali lignin as a pH response bifunctional material with both adsorption and flocculation for wastewater treatment-Reference-Cited by-同舟云学术

Alkali lignin as a pH response bifunctional material with both adsorption and flocculation for wastewater treatment

Published:2022-10-19 Issue:11-12 Volume:76 Page:1032-1043
ISSN:0018-3830
Container-title:Holzforschung
language:en
Short-container-title:

Author:

Qi Junjie¹,Hou Yahui¹,Liu Jiaying¹,Yuan Ze¹,Fang Jing¹,Fang Zhiqiang²,Li Hao²^ORCID

Affiliation:

1. National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300401 , China

2. State Key Laboratory of Pulp and Paper Engineering , South China University of Technology , Guangzhou 510640 , China

Abstract

Abstract Alkali lignin (AL) has attracted great attention as a material for treating dye wastewater due to its low cost and environmental friendliness. However, the unique structure and aggregation characteristics of AL regarding the dye wastewater removal mechanism have not been systematically revealed. Here, the removal process of typical cationic dye contaminants (methylene blue, MB) from dye wastewater by AL at different pH was explored and the unique synergistic effect mechanism of adsorption and flocculation was revealed. With increasing pH, the removal rate initially increased and then decrease. With increasing MB concentration, the optimal pH value corresponding to the maximum adsorption rate increased regularly. Zeta potential and Fourier transform infrared spectroscopy (FTIR) showed that electrostatic and π–π interactions and hydrogen bonding consisted push-pull balance under the influence of pH. In addition, scanning electron microscopy (SEM), ultraviolet and visible spectrum (UV) and particle size analysis showed that the aggregate structure and synergistic mechanism changed with the solution pH and concentration. In the low concentration solution, adsorption dominated. While in the high concentration solution, flocculation dominated. The removal mechanism consisted of the synergy of adsorption and flocculation laying the foundation for the efficient and environmentally friendly treatment of dye wastewater by AL.

Funder

Natural Science Foundation of Hebei Province

National Natural Science Foundation of China

State Key Laboratory of Pulp and Paper Engineering

Tianjin Technical Innovation Guidance Special Project

Publisher

Walter de Gruyter GmbH

Subject

Biomaterials

Link

https://www.degruyter.com/document/doi/10.1515/hf-2022-0117/pdf

Reference39 articles.

1. Ai, Y., Liu, Y., Lan, W., Jin, J., Xing, J., Zou, Y., Zhao, C., and Wang, X. (2018). The effect of pH on the U (VI) sorption on graphene oxide (GO): a theoretical study. Chem. Eng. J. 343: 460–466, https://doi.org/10.1016/j.cej.2018.03.027.

2. Al-Ghouti, M.A. and Da’ana, D.A. (2020). Guidelines for the use and interpretation of adsorption isotherm models: a review. J. Hazard Mater. 393: 122383, https://doi.org/10.1016/j.jhazmat.2020.122383.

3. Alver, E., Metin, A.U., and Brouers, F. (2020). Methylene blue adsorption on magnetic alginate/rice husk bio-composite. Int. J. Biol. Macromol. 154: 104–113, https://doi.org/10.1016/j.ijbiomac.2020.02.330.

4. Ando, D., Nakatsubo, F., and Yano, H. (2019). Thermal stability of lignin in ground pulp (GP) and the effect of lignin modification on GP’s thermal stability: TGA experiments with dimeric lignin model compounds and milled wood lignins. Holzforschung 73: 493–499, https://doi.org/10.1515/hf-2018-0137.

5. Cao, K.L.A., Rahmatika, A.M., Kitamoto, Y., Nguyen, M.T.T., and Ogi, T. (2021). Controllable synthesis of spherical carbon particles transition from dense to hollow structure derived from kraft lignin. J. Colloid Interface Sci. 589: 252–263, https://doi.org/10.1016/j.jcis.2020.12.077.