The van der Waals (vdW) structures of transition metal dichalcogenides (TMDCs) have been studied extensively owing to the excellent electronic, optoelectronic, and catalytic performance with the atomic-scale sharpness of the interfaces. In addition, the presence of substitution and redox reactions in the vdW gaps also provides huge potential to be employed as a nanoscale reactor. Herein, the vdW gap of colloidal MoS is reported as a natural template for the formation of CoMo bimetallic oxide nanoparticles (BMONPs) with highly uniform size (∼4 nm), which resulted in further synthesis of the thin multiwalled carbon nanotubes with extremely narrow diameter distribution. This study not only pioneers a new application of TMDCs but also provides an efficient means to control the size of nanomaterials, which directly affect material properties.
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http://dx.doi.org/10.1021/acsami.0c09285 | DOI Listing |
J Colloid Interface Sci
January 2025
School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 China.
As a graphene-like layered material, molybdenum disulfide (MoS), has attracted increasing attentions for its promising application in electrocatalysis. Whereas MoS still suffers from the sluggish reaction kinetics in oxygen evolution reaction (OER) due to the low density of active sites in most exposed planes. In this work, high density of active sites on MoS basal planes has been obtained by synthesizing mesoporous MoS with Co doping and sulfur vacancies (V).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China. Electronic address:
Bacterial infections have become a fatal issue for human health. The excessive use of antibiotics leads to bacterial resistance. It is of great importance to develop alternate antimicrobial nanomaterials for effective antibacterial therapy.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China. Electronic address:
Understanding the behavior and fate of microplastics (MPs) in aquatic environment is crucial for assessing their potential risks. This study investigated the heteroaggregation behaviors of MPs with representative 2D nanosheets, MoS and graphene oxide (GO), under various conditions, focusing on the transport behavior of the resulting aggregates. It was found that the destabilization capabilities of 2D nanosheets are notably stronger than those of well-reported nanoparticles.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
School of Basic Medicine, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan 750004, China. Electronic address:
Targeting the peculiarities of tumor tissue microenvironment different from normal tissue, such as lower pH and overexpression of hydrogen peroxide is the key to effective treatment. In this study, acid-responsive Z-scheme heterojunctions polyglycolated MoS/CoFeO (MoS = molybdenum disulfide, CoFeO = cobalt ferrite) was synthesized using a two-step hydrothermal method, designated as MSCO-PEG, guided by dual modes of photoacoustic imagine (PAI) and nuclear magnetic imaging (MRI). MSCO-PEG (PEG = polyethylene glycol) responded to the acidic environment of tumor tissues and overexpression of hydrogen peroxide to turn on multimodal synergistic treatment of tumor cells under near-infrared-II (NIR-II) illumination.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge, Singapore. Electronic address:
Fenton reaction technology has worked well in water and wastewater treatment; however it is often limited by such problems as continuous external supply of HO, slow Fe/Fe cycle rate, high energy requirements, and maintenance of low pH during operation. Herein, a novel self-sufficient heterogeneous Fenton system based on Fe/MoS was designed, fabricated, and optimized to effectively address these problems. The combined presence of Fe and sulfur vacancies sites in MoS played a pivotal role in the generation of HOvia two-step single-electron reduction process without any energy consumption.
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