中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 互花米草厌氧发酵渣活性炭的制备表征及吸附性能研究 农业环境科学学报 2010,29 (07) 1374-1381
Position: Home > Articles > Preparation,Characterization and Absorption Capability of Activated Carbon from Anaerobic Digested Residue of S.alterniflora Journal of Agro-Environment Science 2010,29 (07) 1374-1381

互花米草厌氧发酵渣活性炭的制备表征及吸附性能研究

作  者：
王正芳;郑正;罗兴章;张继彪;聂耳;浦君梅;李坤权
单  位：
复旦大学环境科学与工程系;污染控制与资源化研究国家重点实验室
关键词：
活性炭;互花米草厌氧发酵渣;H3PO4;BET;FTIR;亚甲基蓝吸附
摘  要：
利用废弃物互花米草厌氧发酵渣为原料,以H3PO4为活化剂,于N2保护下,在不同的活化温度(400~700℃)和剂料质量比(0.5~3.0)条件下制备活性炭,以低温液氮(N2/77.4 K)吸附测定活性炭的比表面积、孔容及孔径分布,以FTIR、pHPZC测定分析活性炭表面化学性质;以亚甲基蓝为特征污染物,考察所制备的活性炭成品的吸附能力。结果表明,随着剂料质量比的增大,活性炭孔径分布变宽,中孔所占比例增大;在所考察的活化温度范围内,活性炭N2吸附容量大小与BET比表面积呈现相同的趋势。活化温度为500℃、剂料质量比为2.0条件下所制备的活性炭对亚甲基蓝的吸附性能良好,最大吸附容量可达243.90 mg.g-1,符合Langmuir吸附等温模型。亚甲基蓝Langmuir最大吸附容量与活性炭BET比表面积存在一定的线性关系。该活性炭制备方法为互花米草厌氧发酵渣的综合利用找到了新的途径。
译  名：
Preparation,Characterization and Absorption Capability of Activated Carbon from Anaerobic Digested Residue of S.alterniflora
作  者：
WANG Zheng-fang1,ZHENG Zheng2,LUO Xing-zhang1,ZHANG Ji-biao1,NIE Er1,PU Jun-mei1,LI Kun-quan2(1.State Key Laboratory of Pollution Control and Resource Reuse,School of the Environment,Nanjing University,Nanjing 210093,China;2.Department of Environmental Science and Engineering,Fudan University,Shanghai 200433,China)
关键词：
activated carbon;anaerobic digested residue of S.alterniflora;H3PO4;BET;FTIR;methylene blue adsorption
摘  要：
Activated carbon adsorbents were prepared by phosphoric acid activation of anaerobic digested residue of S.alterniflora in nitrogen atmosphere at various temperatures(400~700 ℃)and at different acid/precursor impregnation ratios(0.5~3.0).Porous and surface structure were derived from adsorption isotherms(N2 at 77.4 K).The surface chemistry of the carbons was investigated by infrared spectroscopy and pHPZC.Increasing the impregnation ratio led to a widening of the porous structure with a higher relative contribution of mesoporosity.All the activated carbons prepared within the thermal range invested showed fairly values of adsorption capacity of N2 and its evolution with activa-tion temperature becomes parallel to that of the BET surface area.The potential application of these carbons for the removal of water pollu-tants was investigated by measuring their adsorption capacities for methylene blue as representative of contaminants.The results showed that an impregnation ratio and an activation temperature around 2 g H3PO4.g-1 anaerobic digested residue of S.alterniflora and 500 ℃,respec-tively,were recommended as the best combination of operating conditions to prepare activated carbons for methylene blue adsorption.In addi-tion,the highest adsorption capacity of methylene blue reached 243.90 mg.g-1.It indicated that Langmuir isotherm was more reasonable than Freundlich isotherm for methylene blue adsorption.A reliable correlation between BET surface area and the Langmuir monolayer capacity was obtained.The preparation method of activated carbon provides a new way for the comprehensive utilization of the anaerobic digested residue of S.alterniflora.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46