To remove the bisphenol AF (BPAF) from aqueous solution, two different types of lignin-based aromatic porous polymers (LAPP-1 and LAPP-2) were fabricated via one-pot crosslinking of lignin with 1,4-dichloroxylene and 4,4'-bis(chloromethyl)-1,1'-biphenyl, respectively. The successful synthesis of LAPPs was confirmed by FTIR and XPS, SEM, TEM and N adsorption-desorption analysis. Then, batch adsorption experiments were conducted to investigate adsorption properties toward BPAF. Based on the results, the adsorption processes were in accordance with the pseudo-second-order kinetic model and the Freundlich isotherm model, and the thermodynamic studies showed that the adsorption was a spontaneous and exothermic process. It is remarkable that LAPPs exhibited good adsorption performance in wide ranges of pH and ionic strength as well as in recycling process. Notably, compared to LAPP-1, LAPP-2 exhibited higher adsorption capacity for BPAF, which can be ascribed to its higher porosity and content of aromatic ring. Moreover, the comprehensive analysis of experimental and theoretical results indicated that the π-π interactions and pore adsorption may jointly drive the uptake process of BPAF. Considering the simple fabrication method employed and excellent BPAF adsorption performance, LAPPs provided new insights into the development of advanced lignin-based adsorbents for removal of BPAF from water.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2021.01.215 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Lignin-based hyper-cross-linked resin as an adsorbent for aniline from aqueous solution.
Int J Biol Macromol
December 2024
College of Chemistry and Materials, Huaihua University, Huaihua 418000, PR China; Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Materia, Huaihua University, Huaihua 418000, PR China. Electronic address:
Lignin serves as an ideal substrate for the synthesis of chemically functionalized hyper-cross-linked resins due to the structural composition of its aromatic rings, aliphatic side chains, and multiple active functional groups. These resins have shown to be highly effective in the adsorption of aromatic compounds. In this study, hyper-cross-linked polymer (HCPs-3), synthesized using 1,3,5-triphenyl and lignin, demonstrated a significant adsorption capacity for aniline, with a maximum adsorption capacity (q) of 189.
View Article and Find Full Text PDFLignin-based controlled-release urea improves choy sum growth by regulating soil nitrogen nutrients and bacterial diversity.
Front Plant Sci
December 2024
College of Natural Resources and Environment, South China Agricultural University, GuangDong Engineering Technology Research Center of Green Inputs for Low-carbon Agriculture, Guangzhou, Guangdong, China.
Lignin, as one of the few renewable resources among aromatic compounds, exhibits significant potential for applications in the agricultural sector. Nonetheless, there has been relatively limited research on the effects of lignin-based controlled-release urea (LCRU) on soil nitrogen nutrition and bacterial diversity. In this paper, the impact of LCRU on the growth of choy sum was investigated through a two-season field experiment.
View Article and Find Full Text PDFUV Resistance Properties of Lignin Influenced by Its Oxygen-Containing Groups Linked to Aromatic Rings.
Biomacromolecules
December 2024
State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
The influence of lignin's primary oxygen-containing functional groups, phenolic OH (Ph-OH) and methoxyl (OMe) groups, especially the Ph-OH/OMe ratio, on its UV absorptivity and long-lasting UV blocking remains unclear. In this study, organosolv lignins (OLs) with varying Ph-OH and OMe contents were prepared to evaluate their UV absorptivity and photostability by EPR (electron paramagnetic resonance). As the Ph-OH contents increased from 0.
View Article and Find Full Text PDFCarbon-carbon bond formation using aromatics from biomass.
Chem Commun (Camb)
December 2024
Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
The transition to a circular economy requires that we adapt currently used chemical processes to the structurally diverse and often highly oxygenated precursors that are accessible from biomass. In this review, we highlight different examples of carbon-carbon bond formation using aromatics derived from bio-based sources, reported during 2015-2024. Examples of sustainable biomass building blocks include heterocycles such as furfural and hydroxymethylfurfural, obtained from carbohydrates, as well as lignin-based aromatics such as vanillin and eugenol.
View Article and Find Full Text PDFCashew Phenol Modified Lignosulfonate Strategy for the Preparation of High-performance Dye Dispersants.
Int J Biol Macromol
December 2024
Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Lab. of Biomass Energy and Material, Jiangsu Province, National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China. Electronic address:
Lignin-based dye dispersants (LDD), as one of the most common lignin resource end-application product, is difficult to meet the rapidly developing needs of modern fiber dyeing due to their inherent structural defects. The efficient upgrading and modification of LDD is of great significance to the value-added application of lignin resources and the expansion of LDD sinking market. In this study, using industrial kraft lignin as raw material, cashew phenol was introduced into lignosulfonate in the form of CC bonds by ingenious utilizing the structural characteristics of lignin disordered condensation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!