Surface properties and water vapor adsorption-desorption characteristics of bamboo-based activated carbon

被引：0

作者：

机构：

[1] Wang, Rui

[2] 1,Amano, Yoshimasa

[3] 1,Machida, Motoi

来源：

Wang, R. (qk3093@chiba-u.jp) | 1600年 / Elsevier B.V., Netherlands卷 / 104期

关键词：

In this study; the bamboo charcoals and the bamboo-based activated carbons were prepared from Moso bamboo (Phyllostachys pubescens) by N2 carbonization; CO2 activation and NH3 ammonization at 500-900 C and HNO3 oxidation at room temperature followed by air oxidation at 350 C. The structural and surface chemical characteristics of prepared activated carbons were determined by N2 adsorption- desorption isotherms and Boehm titration; respectively. The water vapor adsorption capacity of each prepared activated carbon was examined with varying the pore structure; surface acidic functional groups and nitrogen contents of samples. Water vapor adsorption-desorption of the bamboo charcoals showed that very small micropores which could adsorb water vapor but be impossible for nitrogen molecule to be accessed would be formed when the carbonization was performed above 700 C. The water vapor adsorption capacity at low humidity region was found to be obviously improved by the oxidation with HNO3. The elemental analysis demonstrated that nitrogen was abundantly introduced into the activated carbon through ammonization at 700-900 C. Also; thermogravimetric analysis for NH3-treated activated carbons which were saturated in relative humidity (RH) of 90% indicated that the interaction between water vapor and activated carbon could be strengthened by surface nitrogen. Ammonization at 900 C significantly developed the specific surface area and pore volume and showed the highest capacity of water vapor adsorption. © 2013 Elsevier B.V. All rights reserved;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

共 50 条

[1] Surface properties and water vapor adsorption-desorption characteristics of bamboo-based activated carbon
Wang, Rui
Amano, Yoshimasa
Machida, Motoi
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2013, 104 : 667 - 674
[2] A new adsorption-desorption model for water adsorption in activated carbon
Do, D. D.
Junpirom, S.
Do, H. D.
CARBON, 2009, 47 (06) : 1466 - 1473
[3] Water vapor adsorption-desorption characteristics of a mixed adsorbent
Zhou, Y
Lee, SY
Ghosh, TK
CHEMICAL ENGINEERING COMMUNICATIONS, 1998, 169 : 57 - 78
[4] Preparation of Bamboo-Based Activated Carbon
Zhang, Jubing
Zhong, Zhaoping
Guo, Houkun
Jiang, Xiaoxiang
2010 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), 2010,
[5] Adsorption characteristics of trace levels of bromate in drinking water by modified bamboo-based activated carbons
Chen, Ho-Wen
Chuang, Yen Hsun
Hsu, Cheng-Feng
Huang, Winn-Jung
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2017, 52 (11): : 1055 - 1062
[6] Water adsorption-desorption on aluminum surface
Chen, JR
Hsiung, GY
Hsu, YJ
Chang, SH
Chen, CH
Lee, WS
Ku, JY
Chan, CK
Joung, LW
Chou, WT
APPLIED SURFACE SCIENCE, 2001, 169 : 679 - 684
[7] Surface Modification of Bamboo-based Activated Carbon for Methylene Blue Removal
Derong Tang
Ruonan Zhao
Feiyun Li
Tianying Chen
Yanjun Tang
Paper and Biomaterials, 2023, 8 (01) : 12 - 25
[8] Bamboo-based activated carbon for supercapacitor applications
Yang, Cheol-Soo
Jang, Yun Su
Jeong, Hae Kyung
CURRENT APPLIED PHYSICS, 2014, 14 (12) : 1616 - 1620
[9] Water Vapor Sorption Characteristics of Wood During Cyclic Adsorption-Desorption Processes
Du, Yamin
Li, Zhu
Jiang, Jiali
Yin, Fangyu
Lü, Jianxiong
Linye Kexue/Scientia Silvae Sinicae, 2024, 60 (09): : 150 - 158
[10] Adsorption-Desorption Behavior of Hydrogen Sulfide Capture on a Modified Activated Carbon Surface
Zulkefli, Nurul Noramelya
Azam, Adam Mohd Izhan Noor
Masdar, Mohd Shahbudin
Isahak, Wan Nor Roslam Wan
MATERIALS, 2023, 16 (01)

← 1 2 3 4 5 →