The presented study proposes an efficient utilization of a common Thymus serpyllum L. (wild thyme) plant as a highly potent biosorbent of Cu(II) and Pb(II) ions and the efficient interaction of the copper-laden plant with two opportunistic bacteria. Apart from biochars that are commonly used for adsorption, here we report the direct use of native plant, which is potentially interesting also for soil remediation. The highest adsorption capacity for Cu(II) and Pb(II) ions (q = 12.66 and 53.13 mg g, respectively) was achieved after 10 and 30 min of adsorption, respectively. Moreover, the Cu-laden plant was shown to be an efficient antibacterial agent against the bacteria Escherichia coli and Staphylococcus aureus, the results being slightly better in the former case. Such an activity is enabled only via the interaction of the adsorbed ions effectively distributed within the biological matrix of the plant with bacterial cells. Thus, the sustainable resource can be used both for the treatment of wastewater and, after an effective embedment of metal ions, for the fight against microbes.
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http://dx.doi.org/10.1007/s00775-024-02045-1 | DOI Listing |
Int J Biol Macromol
January 2025
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266100, China; Key Laboratory of Ocean Observation and Information of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China. Electronic address:
Improving the adsorption capacity of materials for pollutants by means of modification is an important direction in the research of water treatment technology. To improve the applicability of sodium alginate composites in the field of adsorption, magnetic sodium alginate-based hydrogel microsphere adsorbent material FeO@SA/PEI-Fe (FSPF) was synthesized in a single step by using polyethyleneimine grafting modification of sodium alginate by sol-gel method. The material was used for the removal of direct blue GL (DB 200) and direct date red B (DR 13) from simulated wastewater, as well as Cu(II) and Pb(II) from simulated wastewater with heavy metal ions.
View Article and Find Full Text PDFWorld J Microbiol Biotechnol
December 2024
Department of Bioengineering and Biotechnology, Huaqiao University, Xiamen, 361021, China.
Heavy metal and nitrogen contaminations are serious concerns in aquatic environments. Marichromatium gracile YL28, a marine purple sulfur bacterium, has shown great potential as a bioremediation agent for removing inorganic nitrogen from marine water. This study further investigated its ability to simultaneously absorb heavy metals, including Pb(II), Cu(II), Cd(II) and Cr(VI), and remove inorganic nitrogen.
View Article and Find Full Text PDFBull Environ Contam Toxicol
December 2024
Department of Chemistry, Faculty of Science, Ondokuz Mayıs University, Kurupelit, Samsun, 55139, Türkiye.
Fast-paced global industrialization due to population growth poses negative water implications, such as pollution by heavy metals. Phytoremediation is deemed as an efficient and environmentally friendly alternative which utilizes different types of hyperaccumulator plants known as macrophytes for the removal of heavy metal pollutants from contaminated water. In this study, the removal of Cu(II), Ni(II), Pb(II), and Cd(II) heavy metal ions contaminated water was studied by using an aquatic plant, Persicaria amphibia (L.
View Article and Find Full Text PDFSci Total Environ
December 2024
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China. Electronic address:
Biochars prepared at 300-700 °C were functionalized with amidoxime groups to evaluate their selective adsorptive removal capabilities towards Cu(II), Cd(II), and Pb(II). The results show that the amidoxime modification significantly enhanced the the Cu(II) adsorption capacity of the biochar prepared at 300 °C (AOBC300) by 1.6 times, reaching 0.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China. Electronic address:
Mercury-containing wastewater presents a significant environmental threat due to its high toxicity. Therefore, the urgent removal of mercury-laden wastewater is essential to protect ecosystems and public health. In this study, molybdenum disulfide (MoS) nanosheets modified with a silane coupling agent (designated as MS) were crosslinked with natural polymer chitosan (CS) rich in -NH and - OH groups to develop a highly efficient and environmentally friendly MoS-functionalized three-dimensional reticulated porous materials (denoted as MS/CTS) composite adsorbent.
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