Carboxymethyl wood powder-imprinted membranes (CMSM-MIPs) were prepared by using wet spinning technology and molecular-imprinting technology for the selective removal of tetracycline from wastewater. Scanning electron microscopy, X-ray diffraction, thermogravimetry, and X-ray photoelectron spectroscopy characterizations demonstrate that CMSM-MIPs retain the membranous structure of Carboxymethyl wood powder membranes, successfully encapsulate thin layers of imprinted polymers on the membrane surface, and exhibit excellent thermal stability. The adsorption results showed that CMSM-MIPs had the highest selective adsorption capacity for tetracycline, which was 253.8 mg/g. In addition, the adsorption capacities for oxytetracycline and chlortetracycline were 208.8 and 188 mg/g, respectively. It can be observed that CMSM-MIPs not only exhibit a high adsorption capacity for tetracycline but also demonstrate good adsorption capacities for oxytetracycline and chlortetracycline. The experimental results showed that CMSM-MIPs were best fitted with pseudo-second-order kinetics and most consistent with Freundlich fitting. The regeneration experiment showed that CMSM-MIPs still had good regeneration performance after 5 regeneration cycles. In conclusion, the CMSM-MIPs can not only have the natural adsorption performance of wood powder but also give it higher selectivity through molecular imprinting, so as to achieve efficient removal of target organic pollutants in water.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.langmuir.4c01456 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Temporal dynamics of the soil resistome and microbiome irrigated with treated wastewater containing clarithromycin.
Environ Res
January 2025
INRAE, University of Montpellier, LBE, Av. des Étangs, 11100 Narbonne, France.
Clarithromycin, a common antibiotic found in domestic wastewater, persists even after treatment and can transfer to soils when treated wastewater (TWW) is used for irrigation. This residual antibiotic may exert selection pressure, promoting the spread of antibiotic resistance. While Predicted No Effect Concentrations (PNECs) are used in liquid media to predict resistance risks, PNEC values for soils, especially for clarithromycin, are lacking.
View Article and Find Full Text PDFSynthesis of honeycomb-like citric acid-crosslinked chitosan hydrogel beads (cCHBs): Insight into structural characteristics of Cu(II)-loaded cCHBs (cCHBs-Cu(II)).
Int J Biol Macromol
January 2025
Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment (MEE), Nanjing 210042, China.
To date, it has been regarded as one of the most challenging issues to construct novel adsorbents possessing excellent adsorption performance toward heavy metals including copper ions (Cu(II)). Especially, it is controversy about the structural characteristics of chitosan-based adsorbents adsorbed with Cu(II) ions, which could function as new adsorbents. In this study, we adopt a freeze-drying process to synthesize honeycomb-like chitosan hydrogel beads crosslinked with citric acid (cCHBs), further characterize the microstructures of cCHBs and eventually reveal the thermodynamics equations for the removal of target Cu(II).
View Article and Find Full Text PDFFacile synthesis of hierarchically flower-like hollow covalent organic frameworks for enrichment and metabolic analysis of benzophenone derivatives in mouse serum.
J Chromatogr A
January 2025
Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China. Electronic address:
Benzophenone derivatives (BPs), as synthetic chemicals widely used in personal care products, have drawn increasing attention due to their potential health risks. However, monitoring BPs in biological samples remains challenging due to their complex matrices and the deficiency in sensitivity and selectivity in current methods. Herein, a method combining hierarchically flower-like hollow covalent organic frameworks (HFH-COFs) with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was established for the enrichment and detection of BPs in serum samples.
View Article and Find Full Text PDFSynthesis of MnFeO-biochar with surficial grafting hydroxyl for the removal of Cd(II)-Pb(II)-Cu(II) pollutants: Competitive adsorption, application prospects and binding orders of functional groups.
J Environ Manage
January 2025
State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
A novel biochar material with magnetic modification by MnFeO and surficial hydroxyl grafting (h-MFO-BC) was synthesized for capturing HMs (Cd, Pb and Cu) and their competition in composite systems was investigated. The modification of hydroxyl considerably improved the adsorption capacity of HMs. Chemisorption and monolayer and homogeneous reaction dominated adsorption processes.
View Article and Find Full Text PDFPotential of carbon micro/nanofibers derived from lignocellulose biomass valorisation for CO adsorption: A review on decarbonization biotechnology for climate change solutions.
Int J Biol Macromol
January 2025
Desalination Technology Institute, King Abdulaziz City for Science and Technology, Riyadh 12354, Saudi Arabia.
Biomass, as a source of lignocellulose, can be valorized into carbon micro/nanofibers for adsorbing greenhouse gas (GHGs) emissions, especially CO. This article is derived from systematic evidence evaluation of published studies, presenting new, innovative, and systemic approaches to lignocellulose-based carbon micro/nanofiber studies. The review covers a general overview of carbon micro/nanofiber studies, mapping chronicles of the studies, carbon micro/nanofiber types for CO uptake, carbon micro/nanofibers fabrication and characterization, obtained carbonaceous material activation and performances, regulatory frameworks, and sustainability.
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!