Home Journals Articles Updates About
CN
image
收藏切换
Oxidative removal of water pollutants based on biomass-derived carbon nanosheets
收藏切换
PDF
Rong-jiang HAO1, 2, 3, Xiang-yu GU1, Song-geng LI1, 2, 4, *
China Environmental Science | 2025, 45(1) : 144 - 157
Less
收藏切换
China Environmental Science | 2025, 45(1): 144-157
• Water Pollution Control •
Oxidative removal of water pollutants based on biomass-derived carbon nanosheets
Full
Rong-jiang HAO1, 2, 3, Xiang-yu GU1, Song-geng LI1, 2, 4, *
Affiliations
  • 1.State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • 2.Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3.Sino-Danish Center for Education and Research, Beijing 100049, China
  • 4.School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Published: 2025-01-20
Outline
收藏切换

The porous two-dimensional carbon nanosheets with high graphitization and defect sites, designated M-C and M-N, were successfully synthesized via molten salt-assisted pyrolysis of glucose, with oxysalts (K2CO3 or KNO3) as additives, respectively. The oxysalts significantly enhanced the specific surface area of the carbon nanosheets. Particularly, KNO3 promoted nitrogen doping in M-N, resulting in a maximum adsorption capacity for acid orange 7 (AO7) of 480.77mg/g, surpassing that of biochar (BC) from direct pyrolysis and M-BC from molten salt-assisted pyrolysis without oxysalts. The adsorption and catalytic degradation of AO7 removal over carbon materials exhibited a synergistic effect. The catalytic activity of M-N in peroxymonosulfate (PMS) activation was 22.64times that of M-BC and 33.48times that of BC. Additionally, the impact of nitrogen doping and other structural defects on the non-radical pathway-dominated catalytic processes was preliminarily assessed using density functional theory (DFT) calculations. This study indicates that oxysalts can significantly reduce the amount of molten salt required in the preparation of carbon nanosheets, and also provides theoretical guidance for developing bifunctional biomass-based carbon materials for highly efficient organic pollutants adsorption and PMS activation.

carbon nanosheet  /  pyrolysis  /  adsorption  /  catalyst  /  advanced oxidation
Rong-jiang HAO, Xiang-yu GU, Song-geng LI. Oxidative removal of water pollutants based on biomass-derived carbon nanosheets[J]. China Environmental Science, 2025 , 45 (1) : 144 -157 .
Appendix
Less
Year 2025 volume 45 Issue 1
PDF
35
15
Cite this Article
BibTeX
Article Info
  • Receive Date：2024-06-13
  • Online Date：2026-03-18
  • Published：2025-01-20
Article Data
Affiliations
History
  • Received：2024-06-13
Funding
Affiliations
    1.State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
    2.Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
    3.Sino-Danish Center for Education and Research, Beijing 100049, China
    4.School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
References
Share
https://castjournals.cast.org.cn/joweb/zghjkx/EN/
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House