Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Mesoporous activated carbon was prepared using a hydrochar derived from coconut shell waste through hydrothermal carbonization and NaOH chemical activation process (COSHTC). Three sets of activated carbons were obtained with different hydrochar:NaOH impregnation ratios (1:1, 1:2, and 1:3). Among these ratios, 1:3 (COSHTC3) exhibited the optimum adsorption for methylene blue (MB). COSHTC3 adsorbed MB with an initial concentration of 25-250 mg/L at pH 3-11 and 30 °C. The adsorption isotherm of MB on COSHTC3 demonstrated that Langmuir isotherm could be better applied at a maximum monolayer adsorption capacity of 200.01 mg/g at 30 °C. The data was well fitted to the pseudo-second-order (PSO) kinetic model. These results show that the COSHTC3 prepared from low-cost agricultural waste (coconut shell) with average pore diameter 28.6 Å and surface area 876.14 m/g acts as a better adsorbent for removal of cationic dyes and could pave the way for more low-cost adsorbents for dye removal.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jenvman.2017.07.029 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Characterization, photocatalysis, antimicrobial and antioxidant activities of manganese oxide nanoparticles green synthesis using seed extract.
Int J Phytoremediation
September 2025
Innovative Food Technologies Development Application and Research Center, Gölköy Campus Bolu, Bioenvironment and Green Synthesis Research Group, Bolu Abant İzzet Baysal University, Bolu, Türkiye.
This study presents an eco-friendly approach for the green synthesis of manganese oxide nanoparticles (MnONPs) using () (einkorn wheat) seed extract as a reducing and stabilizing agent. The synthesized MnONPs were characterized by UV-Vis, XRD, FTIR, SEM-EDX, BET, and zeta potential analyses, which confirmed their crystalline nature, spherical morphology, and mesoporous structure with a surface area of 41.50 m/g.
View Article and Find Full Text PDFWater catalytic effect on the carbinolamine reaction with amine-catalyzed mesoporous silica nanoparticles.
J Chem Phys
September 2025
Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
The formation of carbinolamine represents the crucial initial step in the aldol reaction, specifically involving the interaction between p-nitrobenzaldehyde and acetone, facilitated by amine-catalyzed mesoporous silica nanoparticles (amine-MSN). In this process, a nitrogen atom from propylamine, which acts as the catalytic moiety, engages in the formation of a covalent bond with a carbon atom from acetone, leading to the generation of a carbinolamine intermediate. This reaction is significantly influenced by the presence of silanol groups located on the surface of the amine-MSN, which contribute to the catalytic activity.
View Article and Find Full Text PDFEngineering of Core-Shell Pd/SSZ-13@AlO Zeolite: Unlocking Superior NO Adsorption and Chemical Durability.
Environ Sci Technol
September 2025
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
Pd-zeolites are promising passive NO adsorber (PNA) materials for mitigating cold-start emissions from lean-burn engines. However, their practical deployment is constrained by insufficient densities and dispersion of isolated Pd active sites as well as their susceptibility to hydrothermal degradation and phosphorus poisoning encountered in vehicle exhaust environments. Herein, we develop a rationally engineered core-shell Pd/SSZ-13@AlO composite, featuring a Pd/SSZ-13 core encapsulated within a mesoporous AlO shell.
View Article and Find Full Text PDFFacile Synthesis of Designer Shape-Defined Mesoporous Metal Nanoenzymes as Therapeutics for Diseases Involving Excessive Oxidative Stress.
Biomater Res
September 2025
Laboratory of Medical Imaging, The First People's Hospital of Zhenjiang, Zhenjiang 212001, P. R. China.
Mesoporous metal nanomaterials (MMNs) have gained interest in biomedicine for their unique properties, but their potential is limited by the predominance of spherical shapes and the neglect of morphological effects on biological activity, which hinders the reasonable evaluation of morphology-dependent enzyme-like activities and biological behaviors and its further biomedical applications. It is therefore imperative to find an effective and facile method to design and prepare MMNs with novel, well-defined morphologies. Herein, we fabricated 3 mesoporous platinum nanoenzymes including sphere, rod, and bipyramid topologies [Au@mesoPt sphere, Au@mesoPt rod, and Au@mesoPt bipyramid nanoparticles (NPs), respectively] via a facile atomic layer deposition method using gold NPs (Au NPs) as the templated cores and Pluronic F127 as a structure-directing agent.
View Article and Find Full Text PDFRoom Temperature Flexible Gas Sensor Based on MOF-Derived Porous Carbon Skeletons Loaded with ZnO Nanoparticles and DMF Detection.
ACS Appl Mater Interfaces
September 2025
Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China.
Overcoming the persistent challenges of high operating temperatures and poor selectivity in metal oxide semiconductor (MOS) gas sensors, this work enhances defect sites in the sensing material through heterostructure construction and builds mesoporous architectures using MOF-derived carbon skeletons as templates. The synergistic effects of multiple mechanisms significantly improve gas-sensing performance, successfully fabricating a ZnO/PCS flexible room-temperature gas sensor with exceptional room-temperature DMF detection capabilities. The nitrogen-containing porous carbon skeletons (PCSs) template shows a stable mesoporous microstructure with large pore volume.
View Article and Find Full Text PDF