Influences of feedstock sources and pyrolysis temperature on the properties of biochar and functionality as adsorbents: A meta-analysis

生物炭 原材料 热解 吸附 碳化 吸附 碳纤维 化学 比表面积 环境化学 化学工程 材料科学 有机化学 工程类 复合数 复合材料 催化作用
作者
Masud Hassan,Yanju Liu,Ravi Naidu,Sanjai J. Parikh,Jianhua Du,Fangjie Qi,Ian R. Willett
出处
期刊:Science of The Total Environment [Elsevier BV]
卷期号:744: 140714-140714 被引量:423
标识
DOI:10.1016/j.scitotenv.2020.140714
摘要

Biochar is a porous, amorphous, stable, and low-density carbon material derived from the carbonization of various biological residues. Biochars have multifunctional properties that make them promising adsorbents for the remediation of organic and inorganic contaminants from soil and water. High temperature treatment (HTT) and the properties of feedstocks are key factors influencing the properties of biochars. Feedstocks have distinctive physicochemical properties due to variations in elemental and structural composition, and they respond heterogeneously to specific pyrolysis conditions. The criteria for the selection of feedstocks and pyrolysis conditions for designing biochars for specific sorption properties are inadequately understood. We evaluated the influence of pyrolysis temperature on a wide range of feedstocks to investigate their effects on biochar properties. With increasing HTT, biochar pH, surface area, pore size, ash content, hydrophobicity and O/C vs. H/C (ratios that denote stability) increased, whereas, hydrophilicity, yield of biochar, O/C, and H/C decreased. Discriminant analysis of data from 533 published datasets revealed that biochar derived from hardwood (HBC) and softwood generally have greater surface area and carbon content, but lower content of oxygen and mineral constituents, than manure- (MBC) and grass-derived biochars (GBC). GBC and MBC have abundant oxygen-containing functional groups than SBC and HBC. The sequence of stability and aromaticity of feedstocks was MBC < GBC < SBC < HBC. Therefore, SBC and HBC are suitable for sorption of hydrophobic molecules. Biochars produced from low HTT are suitable for removal of ionic contaminants, whereas those produced at high HTT are suitable for removal of organic contaminants. The influences of biochar properties on sorption performance of heavy metals and organic contaminants are critically reviewed.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
1秒前
Miracle_wh完成签到,获得积分10
1秒前
2秒前
Miracle_wh发布了新的文献求助10
4秒前
6秒前
6秒前
7秒前
7秒前
圆月弯刀完成签到 ,获得积分10
8秒前
坦率白萱应助DJANGO采纳,获得30
10秒前
露亮完成签到,获得积分10
11秒前
Bressanone发布了新的文献求助10
11秒前
12秒前
斯文的慕儿完成签到 ,获得积分10
14秒前
露亮发布了新的文献求助10
14秒前
14秒前
智慧少女不头秃完成签到,获得积分10
16秒前
33完成签到,获得积分10
17秒前
所所应助感谢有你采纳,获得10
19秒前
19秒前
20秒前
21秒前
乐乐应助anna采纳,获得10
24秒前
潇湘雪月发布了新的文献求助10
24秒前
24秒前
刘燕发布了新的文献求助10
25秒前
25秒前
26秒前
量子星尘发布了新的文献求助10
29秒前
俏皮芷蕊发布了新的文献求助10
29秒前
30秒前
33秒前
33秒前
34秒前
Rondab应助张学友采纳,获得10
37秒前
37秒前
anna发布了新的文献求助10
38秒前
40秒前
如约而至完成签到 ,获得积分10
40秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989242
求助须知:如何正确求助?哪些是违规求助? 3531393
关于积分的说明 11253753
捐赠科研通 3270010
什么是DOI,文献DOI怎么找? 1804868
邀请新用户注册赠送积分活动 882084
科研通“疑难数据库(出版商)”最低求助积分说明 809136