AI Article Synopsis
- Advanced biochar infused with magnesium oxide (MgO) shows great promise in reducing phosphate pollution, a key factor in eutrophication.
- The MgO is effectively confined within a nitrogen pre-doped biochar (Mg/N-BC), resulting in a significant phosphate absorption capacity of 108.41 mg/g and a high absorption rate of 18.01 mg/g/h.
- The study highlights that pre-doping with nitrogen helps shape the biochar structure, facilitating better MgO distribution, thus optimizing phosphate removal capabilities.
Article Abstract
Advanced metal-doped biochar with superior phosphate (P) adsorption capacity plays a crucial role in combating eutrophication, depending on the rational design of the biochar structure for uniform and nanoscale dispersion of metal oxides. Herein, the nanoconfinement of magnesium oxide (MgO) was successfully attained in nitrogen pre-doped biochar (Mg/N-BC). The well-dispersed MgO was confined within nanoscale structure of Mg/N-BC, delivering P adsorption capacity of 108.41 mg g and adsorption rate of 18.01 mg gh. More importantly, its adsorption performance at equilibrium 0.5 mg P/L was 17.70 times higher. Results suggested the decrease in pore size was positively correlated with the increase of N, confirming the role of N pre-doping in structure shaping and MgO confinement. The enhanced P adsorption was attributed to the well-dispersed MgO nanoparticles within the biochar. This study introduced a facile synthesis approach for biochar-incorporated nanoscale MgO, offering a new strategy for enhanced P removal.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2024.131613 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Nanoconfinement of MgO in nitrogen pre-doped biochar for enhanced phosphate adsorption: Performance and mechanism.
Bioresour Technol
December 2024
School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China. Electronic address:
Article Synopsis
- Advanced biochar infused with magnesium oxide (MgO) shows great promise in reducing phosphate pollution, a key factor in eutrophication.
- The MgO is effectively confined within a nitrogen pre-doped biochar (Mg/N-BC), resulting in a significant phosphate absorption capacity of 108.41 mg/g and a high absorption rate of 18.01 mg/g/h.
- The study highlights that pre-doping with nitrogen helps shape the biochar structure, facilitating better MgO distribution, thus optimizing phosphate removal capabilities.
Nitrogen-doped graphite, prepared via the thermal decomposition of melamine into a carbon matrix for use as the negative electrode in lithium-ion capacitors (LICs), was evaluated by electrochemical measurements. Furthermore, in order to study the performance of pre-doped lithium components as a function of nitrogen-doped material, the pre-doped lithium graphite was allowed to react with a lithium salt solution. The results showed that the nitrogen functional groups in the graphite largely influenced the pre-doped lithium components, thereby contributing to the discharge capacity and cycling performance.
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!