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Mercury removal from aqueous solution using petal-like MoS_(2) nanosheets

Frontiers of Environmental Science & Engineering 2021年第1期15卷 213-222页

作者： Ragini Pirarath palani shivashanmugam Asad Syed Abdallah MElgorban Sambandam Anandan Muthupandian Ashokkumar Department of Chemistry National Institute of TechnologyTiruchirappalli-620015India Department of Chemical Engineering National Institute of TechnologyTiruchirappalli-620015India Department of Botany and Microbiology College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia School of Chemistry University of MelbourneMelbourneVic-3010Australia

Recently,different nanomaterial-based adsorbents have received greater attention for the removal of environmental pollutants,specifically heavy metals from aqueous *** this work,we synthesized few-layered MoS2 nanosheets via a surfactant-assisted hydrothermal method and utilized them as an efficient adsorbent for the removal of mercury from aqueous *** synthesized MoS2 nanosheets showed petal-like morphology as confirmed by scanning electron microscope and high-resolution transmission electron microscopic *** average thickness of the nanosheets is found to be about 57 *** high stability and negative zeta potential makes this material suitable for efficient adsorption of mercury from aqueous *** adsorption efficiency of the adsorbent was investigated as a function of pH,contact time and adsorbent *** kinetics of adsorption and reusability potential of the adsorbent were also performed.A pseudo-second-order kinetics for mercury adsorption was *** prepared MoS_(2) nanosheets showed 93%mercury removal efficiency,whereas regenerated adsorbent showed 91%and 79%removal efficiency in the respective 2^(nd) and 3^(rd) *** adsorption capacity of the adsorbent was found to be 289 mg/g at room temperature.

关键词： Anionic surfactant 2D material MoS_(2)nanosheets Mercury removal Adsorption capacity

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