In order to improve the dispersion of molybdenum disulfide (MoS) and enhance the performance of MoS, two alginate-derived biomass carbon-MoS (BC-MoS) composites: CMB/CMS, were prepared by introducing BC during the synthesis of MoS by hydrothermal. The effects of different gels, times and temperatures of the synthesized BC-MoS were investigated, and the adsorption capacity for methylene blue (MB), basic fuchsin (BF) and copper ions (Cu) was tested. The results indicated that the vertical growth of MoS on the BC surface could be realized when using xero-gel, while the BC and MoS were mixed uniformly when using wet-gel. Compared with MoS, the hydrophilicity and water dispersibility of BC-MoS were greatly improved, and BC-MoS had better adsorption capacity for MB/BF/Cu (99.61/86.83/60 mg/g). The adsorption mechanism exhibits that the adsorption force of BC-MoS on MB/BF is mainly based on the electrostatic force, and the adsorption on Cu comes from the electrostatic force and the Lewis soft-soft interaction. This study dramatically enriches the application of transition metal chalcogenides and provides a meaningful reference for wastewater treatment.
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http://dx.doi.org/10.1016/j.ijbiomac.2024.135467 | DOI Listing |
Int J Biol Macromol
November 2024
School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
ACS Appl Mater Interfaces
April 2024
Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China.
Conductive hydrogels are ideal materials for intelligent medical devices, human-machine interfaces, and flexible bioelectrodes due to their adjustable mechanical properties and electrical responsiveness, whereas it is still a great challenge to achieve the integration of excellent flexibility and biocompatibility into one hydrogel sensor while also incorporating self-healing, self-adhesion, environmental tolerance, and antimicrobial properties. Here, a nanocomposite conductive organohydrogel was constructed by using collagen (Col), alginate-derived carbon quantum dots (OSA-CQDs), poly(acrylic acid) (PAA), ethylene glycol reduced AgNPs, and Fe ions. Depending on OSA-CQDs with multiple chemical binding sites and high specific surface area as cross-linkers, while coupling highly biologically active Col chains and PAA chains are serving as an energy dissipation module, the resulting organohydrogel exhibited excellent flexibility (795% of strain, 193 kPa of strength), high cell compatibility (>95% survival rate), self-healing efficiency (HE = 79.
View Article and Find Full Text PDFChemSusChem
September 2024
Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
In response to the ever increasing need to develop more efficient and sustainable methods for removing heavy metal contaminants from aqueous systems, the following article reports on the design of highly mesoporous alginate-derived materials (Starbon) and their application to the adsorption of heavy metals. Using the Starbon process to expand, dry and pyrolyse an inherently porous polysaccharide precursor, it was possible to produce mesoporous materials (BJH mesopore volumes 0.81-0.
View Article and Find Full Text PDFBiomacromolecules
February 2024
State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, Ren Min Nan Rd, Chengdu, Sichuan 610041, China.
Preserving stable tooth-periodontal tissue integration is vital for maintaining alveolar bone stability under physiological conditions. However, tooth extraction compromises this integration and impedes socket healing. Therefore, it becomes crucial to provide early stage coverage of the socket to promote optimal healing.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2022
Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
Lithium-ion batteries with high reversible capacity, high-rate capability, and extended cycle life are vital for future consumer electronics and renewable energy storage. There is a great deal of interest in developing novel types of carbonaceous materials to boost lithium storage properties due to the inadequate properties of conventional graphite anodes. In this study, we describe a facile and low-cost approach for the synthesis of oxygen-doped hierarchically porous carbons with partially graphitic nanolayers (Alg-C) from pyrolyzed Na-alginate biopolymers without resorting to any kind of activation step.
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