Abstract
Background: The effluent release containing heavy metals, such as Cd (II) ions, poses drastic risks to both the natural environment and human health. In this research, a novel nano sorbent from the pyridine derivative was prepared for dispersive solid-phase extraction of Cd (II) ions.
Methods: Graphene oxide (GrO) was chemically modified by a 2-aminopyridine group (2Ap) through a multistep procedure. The effect of adsorbent amount, pH, temperature, and equilibrium time on sorption of the Gr2Ap adsorbent was studied; Gr2Ap adsorbent displayed a high ability to adsorb Cd (II) at pH = 6. Furthermore, to inquire about the adsorption isotherms of metal ions sorption mechanism, the model of Freundlich and Langmuir was fitted to empirical isotherm data. Besides, in the inspection of the basic process of the metal sorption mechanism, pseudo-first and second-order kinetics and Roginsky-Zeldovich types were found to be compatible with adsorption kinetic results.
Results: The concentration factor and limit of detection for Cd (II) were 12.5 and 1.84 μg/L, respectively. According to the value of the correlation coefficient factor, the Gr2Ap adsorbent exhibited the highest ability to adsorb Cd (II) ions (22.54 mg/g) at pH=6. The pseudo-second-order pattern of Cd (II) adsorption fit best with the kinetic result.
Conclusion: The Gr2Ap exhibited a high potential for removing the heavy metal ions from aqueous samples. Besides, the current research showed the method to be efficient, easy, inexpensive, and apt for evaluating the Cd (II) ions in several samples of water and wastewater.
Keywords: Graphene oxide plates, pyridine derivative, nano-sorbent, heavy metals, dispersive solid-phase extraction, carcinogens.
Graphical Abstract
Call for Papers in Thematic Issues
Advancements in biomedicine, corrosion inhibition/monitoring, and lubrication of carbon dots
Carbon dots, a class of carbon-based nanomaterials, have garnered substantial interest in various scientific and engineering fields due to their unique properties, including excellent optical properties, outstanding biocompatibility, easy preparation, good dispersity, ultrasmall size, low toxicity and environmental friendliness. This special issue of Current Analytical Chemistry aims to showcase cutting-edge ...read more
Advances in Microfluidic and Sensing Technologies of Biofluids.
Detection of biological fluids is an important means to assess human health and diagnose diseases. Currently, research on blood is relatively mature and widely applied in the medical field. With the development and advancement of microfluidic technology and novel detection methods, attention has turned to human physiological fluids such as ...read more
Analytical methods for environmental and food analysis
In recent years, the study of the chemical composition of food and the environment depends on analytical methods in order to acquire information about the chemical composition, processing, quality control and contamination of soil, water, air, plants and foods, aspects very important for food safety and environmental quality control. There ...read more
Applications of artificial intelligence in chemical analysis
Artificial intelligence (AI) has demonstrated its versatility in almost all scientific fields, especially analytical chemistry, which is leading the way in the integration of AI. According to Chemical Abstract Services, one of the major disciplines contributing to AI-related publications and patents is analytical chemistry. That?s because techniques such as deep ...read more
Related Journals
Anti-Cancer Agents in Medicinal Chemistry
Current Computer-Aided Drug Design
Current Bioactive Compounds
Combinatorial Chemistry & High Throughput Screening
Current Medicinal Chemistry
The Natural Products Journal
Current Catalysis
Current Chinese Chemistry
Current Chinese Science
Current Topics in Chemistry
Related Books
Botanicals and Natural Bioactives: Prevention and Treatment of Diseases
Biosurfactants: A Boon to Healthcare, Agriculture & Environmental Sustainability
Advances in Dye Degradation
Biological and Medical Significance of Chemical Elements
Frontiers In Medicinal Chemistry
Advances in Organic Synthesis
Frontiers in Natural Product Chemistry
Recent Advances in Analytical Techniques
Advanced Catalysts Based on Metal-organic Frameworks (Part 2)
Ionic Liquids: Eco-friendly Substitutes for Surface and Interface Applications
14
1