Abstract
Copper sulfide nanoparticles (CuS NPs) have recently attracted extensive attention in various fields due to their excellent optical and electrical properties. However, CuS NPs are easy to agglomerate in their preparation on account of the high surface activity. In this study, uniform dispersion of CuS NPs were fabricated with corn stalk as a template and stabilizer, further CuS@corn stalk/chitin composite hydrogel was obtained by crosslinking with chitin. The results reveal that the CuS NPs were evenly dispersed into the composite hydrogels with a three-dimensional network structure, which were verified by the UV-vis spectrum, XRD, FT-IR spectra and SEM. In addition, the as-prepared composite hydrogel with the traits of peroxidase-like activity can convert H2O2 into an extremely oxidative and toxic ·OH, which manifested good effects for photodegradation of RhB and antibacterial against Escherichia coli and Staphylococcus aureus. Hence, the composite hydrogels could be used for photocatalytic treatment and sterilization of wastewater, which provides a new idea for the functional application of CuS NPs.
Highlights
In recent decades, nanoscale materials have received considerable research interest due to their significant impact on many aspects of modern society [1]
The composite hydrogels could be used for photocatalytic treatment and sterilization of wastewater, which provides a new idea for the functional application of CuS nanoparticles (CuS NPs)
Produce hydroxyl radical, which acted as an oxidant to oxidize rhodamine B (RhB) and realized photodegradation
Summary
Nanoscale materials have received considerable research interest due to their significant impact on many aspects of modern society [1]. As a well-known p-type semiconductor with a band gap of 1.2–2.0 eV [3], CuS nanoparticles (CuS NPs) have been intensively studied in various fields due to their outstanding photoelectric properties, photo-thermal properties, and photocatalytic activity [4] than that of copper sulfide itself Such excellent properties make it an ideal candidate for diverse applications such as photocatalytic degradation of organic pollutants [1], photo-thermal treatment of tumors [2], drug delivery [5], and tissue imaging [6]. 1a, we employed a simple and facile method to prepare with corn stalk as a template and stabilizer; CuS@corn stalk/chitin composite hydrogel was further.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
