Abstract
AbstractHeavy metal ions (HMIs) and radionuclides pose serious threats to food safety, human health, and marine ecosystems. Titanium carbides are advantageous owing to their good hydrophilicity, controllable surface charge, specific active groups, and high radiation stability, which make them effective candidates for removing toxic HMIs and radionuclides from wastewater. Recently, a lot of research is conducted to discover new methods for preparing functional titanium carbide composite materials to enhance the adsorption performance and overcome the shortcomings of conventional nanomaterials. Since 2011, the titanium carbide‐based adsorbents have undergone a developmental process from a single 2D nanosheet to a wide range of composite materials and 3D architectures. In this review, the development and progress in the design and synthesis methods of various titanium carbide‐based adsorbents are summarized. These methods are practical, scalable, and controllable in terms of structure and surface chemistry. The application of these surface‐modified composite materials in the adsorption of HMIs and radionuclides is also discussed, and the adsorption mass transfer mechanism of the adsorbates on titanium carbide‐based adsorbents is analyzed. Finally, the challenges and prospects of titanium carbide composite materials for future applications in the domain of metal ion adsorption are discussed.
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