The objective of this study is to obtain information on the behaviour of carbon nanotubes (CNTs) as potential carriers of pollutants in the case of accidental CNT release to the environment and on the properties of CNTs as a potential adsorbent material in water purification. The effects of acid treatment of CNTs on (i) the surface properties, (ii) the colloidal stability and (iii) heavy metal sorption are investigated, the latter being exemplified by uranium(VI) sorption. There is a pronounced influence of surface treatment on the behaviour of the CNTs in aqueous suspension. Results showed that acid treatment increases the amount of acidic surface groups on the CNTs. Therefore, acid treatment has an increasing effect on the colloidal stability of the CNTs and on their adsorption capacity for U(VI). Another way to stabilise colloids of pristine CNTs in aqueous suspension is the addition of humic acid.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.envpol.2008.09.045 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tailored Colloidal Shapes in Precursor Solutions for Efficient Blade-Coated Perovskite Solar Modules.
Adv Mater
January 2025
Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Metal halide perovskite solar cells (PSCs) have emerged as one of the most promising candidates for next-generation photovoltaic technologies. However, perovskite films deposited by blade-coating usually exhibit inferior film morphology compared to those fabricated by spin-coating, which hinders the power conversion efficiency (PCE) and stability of the scalable perovskite solar modules (PSMs). Herein, ellipsoidal colloids are tailored in the perovskite precursor solution by incorporating perovskite colloids and polymer additives.
View Article and Find Full Text PDFRational Design of Quinoidal Conjugated Polymers for Photothermal Antibacterial Therapy.
Macromol Rapid Commun
January 2025
School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China.
The increasing prevalence of antibiotic resistance, driven by the overuse and misuse of conventional antibiotics, has become a critical public health concern. Photothermal antibacterial therapy (PTAT) utilizes heat generated by photothermal agents under light exposure to inhibit bacterial growth without inducing resistance, attracting more and more attention. Quinoid conjugated polymers, especially para-azaquinodimethane (AQM) polymer, are a class of organic semiconductors known for efficient π-electron delocalization, near-infrared absorption, and narrow bandgap, showing great potential in the application of photothermal reagents.
View Article and Find Full Text PDFDesign, Preparation, and Ex Vivo Skin Permeation of Doxepin Microemulsion System for Topical Delivery.
J Cosmet Dermatol
January 2025
Department of Pharmaceutics, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Background: Doxepin (DX) is used orally to relieve itching but can cause side effects like blurred vision, dry mouth, and drowsiness due to its antimuscarinic effect. To reduce these adverse effects and improve skin permeation, DX is being developed in topical formulations. This study aims to improve DX skin absorption by developing a microemulsion (ME) formulation (ME-DX).
View Article and Find Full Text PDFKonjac glucomannan/zein active film loaded with tea polyphenol-ferric nanoparticles for strawberry preservation.
Int J Biol Macromol
January 2025
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address:
With increasing global environmental awareness and concerns about food safety, biodegradable active packaging has garnered widespread attention. In this study, the stability and bioactivity of tea polyphenol (TP) were enhanced through the preparation of TP-ferric nanoparticles (TP-Fe NPs) using metal-polyphenol ion coordination. Moreover, the introduction of Fe ions can further enhance the antibacterial effects of NPs.
View Article and Find Full Text PDFMechanism of solid electrolyte interphase film formation using ethylene carbonate-based local high concentration electrolyte in sodium-ion batteries.
J Colloid Interface Sci
January 2025
School of Chemistry, South China Normal University, Guangzhou 510006, People's Republic of China. Electronic address:
Sodium-ion batteries (SIBs) have the advantages of abundant resources and low cost, making them potential candidates for the next-generation large-scale energy storage technology. However, the capacity fade during cycling used in sodium-ion batteries is a major challenge. The rational design of the electrolyte is one of the ways to solve these problems.
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!