CTAB intercalation into two-dimensional transition-metal carbides: Enhancing adsorption performance of Cr (VI)
Source abstract
Abstract
Nowadays, adsorption is the effective and widely used technology for removing toxic and harmful heavy metals from wastewater. As the most widely used star material in MXenes based materials, Ti 3C 2 exhibits great brilliance in the field of heavy metal adsorption. Due to the inefficient adsorption performance of Ti 3C 2 for Cr (VI), the intercalation method is used to treat Ti 3C 2 to obtain an efficient adsorbent. Therefore, 1CTAB-Ti 3C 2 material was constructed by intercalating Ti 3C 2 with Cetyl-trimethyl Ammonium Bromide (CTAB) and used to remove Cr (VI). The CTAB ultrasonic intercalation could make the positively charged CAT + ionized from the solution attract to the negatively charged Ti 3C 2 surface through static electricity, and further insert between the negatively charged Ti 3C 2 layers. Therefore, the layer spacing of Ti 3C 2 became larger to improve its layer spacing, so that it exposed more adsorption sites and improved the adsorption performance of MXenes. The maximum adsorption capacity of 1CTAB-Ti 3C 2 for Cr (VI) was approximately 206.8 mg/g. The 1CTAB-Ti 3C 2 could absorb Cr (VI) at various temperatures and maintain a high adsorption efficiency. This study resoundingly prepared efficient adsorbents using a low-cost intercalation method, and it provided a new idea for the application of MXenes based materials in the field of heavy metal adsorption.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: MXene and MAX Phase Materials · Nanomaterials for catalytic reactions · Graphene and Nanomaterials Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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