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Dear Colleagues,

Porous carbon materials have versatile applications in the modern world. Different varieties of carbon exist, including activated carbon, nanocarbon, soft and hard templated mesoporous carbon, carbon fibers, or biochar. Among the applications of carbon-based materials, this Special Issue of Molecules invites papers that specifically target the application of carbon-based materials toward sustainability. These applications include, but are not limited to, carbon capture, air purification, water purification, trace contaminant removal, and the sensing and removal of chemical warfare agents. The synthesis of carbon-based materials using a sustainable approach also falls under this category.

Dr. Dipendu Saha
Guest Editor

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Related Special Issue

Published Papers (1 paper)

Research

16 pages, 4159 KiB

Open AccessArticle

Zanthoxylum bungeanum Waste-Derived High-Nitrogen Self-Doped Porous Carbons as Efficient Adsorbents for Methylene Blue

by Yuhong Zhao, Qi Zhang, Zhuhua Gong, Wenlin Zhang, Yun Ren, Qiang Li, Hongjia Lu, Qinhong Liao, Zexiong Chen and Jianmin Tang

Molecules 2024, 29(8), 1809; https://doi.org/10.3390/molecules29081809 - 16 Apr 2024

Viewed by 365

Abstract

In this study, we prepared high-nitrogen self-doped porous carbons (NPC1 and NPC2) derived from the pruned branches and seeds of Zanthoxylum bungeanum using a simple one-step method. NPC1 and NPC2 exhibited elevated nitrogen contents of 3.56% and 4.22%, respectively, along with rich porous structures, high specific surface areas of 1492.9 and 1712.7 m² g⁻¹ and abundant surface groups. Notably, both NPC1 and NPC2 demonstrated remarkable adsorption abilities for the pollutant methylene blue (MB), with maximum monolayer adsorption capacities of 568.18 and 581.40 mg g⁻¹, respectively. The adsorption kinetics followed the pseudo-second-order kinetics and the adsorption isotherms conformed to the Langmuir isotherm model. The adsorption mechanism primarily relied on the hierarchical pore structures of NPC1 and NPC2 and their diverse strong interactions with MB molecules. This study offers a new approach for the cost-effective design of nitrogen self-doped porous carbons, facilitating the efficient removal of MB from wastewater. Full article

(This article belongs to the Special Issue Carbon-Based Materials for Sustainable Chemistry: 2nd Edition)

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