The present study for the first time manifests the outstanding potential of amine grafted magnetic graphene oxide (m-GO-NH) synthesized from stems for mercury (Hg (II)) and 2,4,6-trinitrophenol (TNP) removal. The adsorption performance of m-GO-NH was apprized by considering the impact of the contact time (0-120 min), pH (2-9), adsorbent dose (5-40 mg), and adsorbate concentration (10-50 mg/L). The maximum Hg (II) and TNP removals (∼ 100%) were obtained using 30 mg adsorbent dose in 90 and 75 min, respectively. The best performance of m-GO-NH was observed at pH of 7, 20 mg/L Hg (II), and pH of 2, 30 mg/L TNP. According to the Brunauer-Emmett-Teller (BET) analysis, the surface area of GO was 34.81 m/g and the simultaneous micro and mesoporosity was observed. Regarding the thermodynamic studies, the adsorption procedure was spontaneous and endothermic for Hg (II) followed Redlich-Peterson (R-P) and Freundlich isotherm equations while it was exothermic for TNP, well fitted with Langmuir and R-P isotherms. Kinetic data also indicated a good correlation with pseudo-second-order model. The highest adsorption capacity was estimated as 107.33 and 105.2 mg/g for Hg (II) and TNP, respectively. Accordingly, the proposed m-GO-NH can be a promising adsorbent for the elimination of metal and organic contaminants.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/09593330.2021.1937708 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Electrochemical treatment of simulated wastewater containing nitroaromatic compound with cobalt-titanium electrode.
Chemosphere
September 2024
School of Chemistry and Chemical Engineering, YuLin University, Yulin, 719000, PR China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin, 719000, PR China. Electronic address:
The CoO-Ti electrodes were successfully prepared via calcination method to degrade nitrogen-containing (TNP) simulate wastewater in this reaserch. SEM and EDS were employed to analyze the morphology and element composition on CoO-Ti electrode, revealing the successful load of cobalt element. Then the electrochemical performance was evaluated by CV and indicated a better redox performance of electrode.
View Article and Find Full Text PDFThe horizontal gene transfer of perchlorate reduction genomic island in three bacteria from an ecological niche.
Appl Microbiol Biotechnol
December 2024
Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao C1 Refinery Engineering Research CenterQingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
Article Synopsis
- Three new strains of dissimilatory perchlorate-reducing bacteria (DPRB) were isolated from active sludge, belonging to the genera Brucella, Acidovorax, and Citrobacter.
- These strains are gram-negative, rod-shaped, and capable of reducing perchlorate efficiently within six days, also showing unique enzyme activity towards chlorate and perchlorate.
- Findings suggest that these strains share a common ancestral genetic element (the perchlorate reduction genomic islands) acquired through horizontal gene transfer, mediated by transposase genes.
Investigating the effect of on the testicular function of first-generation offspring of mice treated with titanium oxide nanoparticles.
Avicenna J Phytomed
January 2023
Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Objective: Nanoparticles include primary particles with at least one of their dimensions being less than 100 nm. The goal of this research was to determine the possible protective role of (NS) against toxic effects mediated by titanium oxide nanoparticle (TNP).
Materials And Methods: 30 adult mice (10 males and 20 females) were used.
Responses of antibiotic resistance genes in the enhanced biological phosphorus removal system under various antibiotics: Mechanisms and implications.
Sci Total Environ
December 2023
School of Life Science, Jinggangshan University, Ji'an 343009, China. Electronic address:
The effects of antibiotics on the proliferation of antibiotic resistant genes (ARGs) in WWTPs have drawn great attention in recent years. The effects of antibiotics on ARGs in the enhanced biological phosphorus removal (EBPR) system and its mechanisms, however, are still not well understood. In this study, EBPR systems were constructed using activated sludge to investigate the effects of ten commonly detected antibiotics in the environment on the proliferation of ARGs and the mechanisms involved.
View Article and Find Full Text PDFA Breakthrough in Photocatalytic Wastewater Treatment: The Incredible Potential of g-CN/Titanate Perovskite-Based Nanocomposites.
Nanomaterials (Basel)
July 2023
Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan.
Water pollution has emerged as a major global environmental crisis due to the massive contamination of water resources by the textile dyeing industry, organic waste, and agricultural residue. Since water is fundamental to life, this grave disregard puts lives at risk, making the protection of water resources a serious issue today. Recent research has shown great interest in improving the photocatalytic performance of graphitic carbon nitride (g-CN) for wastewater treatment.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!