Coupling adsorption and degradation in p-nitrophenol removal by biochars

生物炭 吸附 热解 化学 环境修复 环境化学 硝基苯酚 降级(电信) 污染物 污染 有机化学 催化作用 生态学 计算机科学 电信 生物
作者
Quan Chen,Chaoran Ma,Wenyan Duan,Di Lang,Bo Pan
出处
期刊:Journal of Cleaner Production [Elsevier BV]
卷期号:271: 122550-122550 被引量:73
标识
DOI:10.1016/j.jclepro.2020.122550
摘要

Biochar is an attractive class of materials because of its various feedstock and wide application potential in agricultural and environmental remediation activities. Recent studies have suggested that biochar may both adsorb and degrade organic contaminants; however, the properties of biochar that control its apparent interactions with organic contaminants are still unknown. In this study, p-nitrophenol was chosen as a model organic pollutant. Its adsorption and degradation by biochar were investigated with a special focus on correlations with the biochar properties. The apparent removal of p-nitrophenol by biochars increased with the increase of pyrolysis temperature. After acetonitrile extraction of the biochars, p-nitrophenol adsorption increased while degradation decreased. Thus, there was no significant change in the apparent removal of p-nitrophenol across eight reaction cycles. An analysis of the physicochemical properties of biochar showed that p-nitrophenol adsorption was determined by the biochar surface area, while the degradation may be because of the varying compositions of biochars, including free radicals, functional groups determining its redox activities, and transition metals. The relative importance of these compositions varied with the pyrolysis temperature. More extensive study is warranted on the relationship between biochar properties and reactivity for targeted biochar production and application. The results of this study provide fundamental information on biochar preparation and its application in organic pollutant removal.
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
1秒前
兴奋雁蓉发布了新的文献求助10
1秒前
1秒前
sunsunsun完成签到,获得积分10
4秒前
旭晓发布了新的文献求助10
5秒前
着急的雪冥完成签到,获得积分10
5秒前
huohuo143完成签到,获得积分10
6秒前
霸气安筠发布了新的文献求助20
6秒前
sunsunsun发布了新的文献求助10
6秒前
小颖发布了新的文献求助10
7秒前
CodeCraft应助xn201120采纳,获得10
8秒前
9秒前
orixero应助兴奋雁蓉采纳,获得10
10秒前
nn完成签到,获得积分10
10秒前
11秒前
irvinzp发布了新的文献求助50
12秒前
13秒前
You发布了新的文献求助10
13秒前
13秒前
香菜张完成签到,获得积分10
15秒前
失眠的狗完成签到,获得积分20
15秒前
16秒前
xiaofeiyan发布了新的文献求助20
16秒前
17秒前
橘子圭令完成签到,获得积分10
18秒前
18秒前
dreamfly发布了新的文献求助10
18秒前
Self-made发布了新的文献求助10
18秒前
19秒前
张若旸完成签到,获得积分10
19秒前
霸气安筠完成签到,获得积分10
19秒前
猪猪hero应助sunsunsun采纳,获得10
21秒前
21秒前
22秒前
xiewen完成签到,获得积分20
24秒前
htx发布了新的文献求助30
24秒前
香蕉觅云应助羊羊羊采纳,获得10
24秒前
25秒前
28秒前
hunbaekkkkk发布了新的文献求助10
29秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976267
求助须知:如何正确求助?哪些是违规求助? 3520472
关于积分的说明 11203425
捐赠科研通 3257089
什么是DOI,文献DOI怎么找? 1798589
邀请新用户注册赠送积分活动 877785
科研通“疑难数据库(出版商)”最低求助积分说明 806523