H3PO4 activation mediated the iron phase transformation and enhanced the removal of bisphenol A on iron carbide-loaded activated biochar
文献类型：期刊论文
| 作者 | Zhao, Nan; Liu, Kunyuan; He, Chao; Zhao, Dongye; Zhu, Ling; Zhao, Chuanfang; Zhang, Weihua; Oh, Wen-Da; Zhang, Weixian; Qiu, Rongliang |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 300期号:0页码:118965 |
| ISSN号 | 0269-7491 |
| 关键词 | ZERO-VALENT IRON PEROXYDISULFATE ACTIVATION NONRADICAL OXIDATION ADSORPTION SORPTION CARBON NANOPARTICLES PENTACHLOROPHENOL NANOCOMPOSITE DEGRADATION |
| 英文摘要 | Zero valent iron-loaded biochar (Fe0-BC) has shown promise for the removal of various organic pollutants, but is restricted by reduced specific surface area, low utilization efficiency and limited production of reactive oxygen species (ROS). In this study, iron carbide-loaded activated biochar (Fe3C-AB) with a high surface area was synthesized through the pyrolysis of H3PO4 activated biochar with Fe(NO3)3, tested for removing bisphenol A (BPA) and elucidated the adsorption and degradation mechanisms. As a result, H3PO4 activated biochar was beneficial for the transformation of Fe0 to Fe3C. Fe3C-AB exhibited a significantly higher removal rate and removal capacity for BPA than that of Fe0-BC within a wide pH range of 5.0-11.0, and its performance was maintained even under extremely high salinity and different water sources. Moreover, X-ray photoelectron spectra and density functional theory calculations confirmed that hydrogen bonds were formed between the COOH groups and BPA. 1O2 was the major reactive species, constituting 37.0% of the removal efficiency in the degradation of BPA by Fe3C-AB. Density functional reactivity theory showed that degradation pathway 2 of BPA was preferentially attacked by ROS. Thus, Fe3C-AB with low cost and excellent recycling performance could be an alternative candidate for the efficient removal of contaminants. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47543]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 通讯作者 | Qiu, Rongliang |
| 作者单位 | 1.Sun Yat Sen Univ, Guangdong Prov Key Lab Environm Pollut Control &, Guangzhou 510275, Peoples R China 2.Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 4.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Peoples R China 5.Auburn Univ, Dept Civil & Environm Engn, Auburn, AL 36849 USA |
| 推荐引用方式 GB/T 7714 | Zhao, Nan,Liu, Kunyuan,He, Chao,et al. H3PO4 activation mediated the iron phase transformation and enhanced the removal of bisphenol A on iron carbide-loaded activated biochar[J]. ENVIRONMENTAL POLLUTION,2022,300(0):118965. |
| APA | Zhao, Nan.,Liu, Kunyuan.,He, Chao.,Zhao, Dongye.,Zhu, Ling.,...&Qiu, Rongliang.(2022).H3PO4 activation mediated the iron phase transformation and enhanced the removal of bisphenol A on iron carbide-loaded activated biochar.ENVIRONMENTAL POLLUTION,300(0),118965. |
| MLA | Zhao, Nan,et al."H3PO4 activation mediated the iron phase transformation and enhanced the removal of bisphenol A on iron carbide-loaded activated biochar".ENVIRONMENTAL POLLUTION 300.0(2022):118965. |
入库方式： OAI收割
来源：生态环境研究中心
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