One-pot synthesis of magnetic algal carbon/sulfidated nanoscale zerovalent iron composites for removal of bromated disinfection by-product
Lu, Jian; Zhang, Cui; Wu, Jun
Source PublicationCHEMOSPHERE
2020-07
Volume250Pages:126257
KeywordZERO-VALENT IRON AQUEOUS-SOLUTIONS REDUCTION BIOCHAR NANOPARTICLES CR(VI) TETRABROMOBISPHENOL DEGRADATION REMEDIATION GROUNDWATER
MOST Discipline CatalogueEnvironmental Sciences
DOI10.1016/j.chemosphere.2020.126257
Contribution Rank[Lu, Jian; Zhang, Cui] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China; [Wu, Jun] Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China
Department海岸带环境过程实验室
AbstractMagnetic algal carbon supported flower-like sulfidated nanoscale zerovalent iron (S-nZVI/AC) composite was firstly synthesized through one-pot method and used for removing bromate. More than 98% of bromate was efficiently removed within 48 min. Compared with the individual S-nZVI treatment, the removal rate constant of the S-nZVI/AC composite treatment was almost doubled. The removal rate constant of bromate increased three times when the S/Fe ratio increased from 0 to 0.3. According to the synergistic effect between the algal carbon and S-nZVI on the bromate removal, the introduction of carbon and sulfide-modification of nZVI were efficient modification approaches for enhancing the removal of bromated using S-nZVI/AC composite. The removal efficiency of bromate increased sharply to more than 98% when the composite dose increased from 0 to 40 mg L-1. The removal rate constant increased linearly from 0.08 to 0.31 min(-1) when the initial concentration increased from 50 to 200 mu g L-1 . The removal efficiency of the bromate still maintained at high level (>85%) after 5 recycles of the S-nZVI/AC composite. Bromate was readily removed under neutral or slight acidic conditions. The bromate removal rate constant increased from 0.10 to 0.27 min(-1) when the temperature increased from 15 to 35 degrees C. The bromate removal rate constant increased almost 4 times when the ionic strength increased from 0 to 3 g L-1. This study demonstrates that S-nZVI/AC composite synthesized through one-pot method is a promising water purification material for efficient removal of bromated disinfection by-product. (C) 2020 Elsevier Ltd. All rights reserved.
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China [41671319] ; Taishan Scholars Program of Shandong Province [tsqn201812116] ; One Hundred Talents Program of Chinese Academy of SciencesChinese Academy of Sciences [Y629041021] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences [KFJ-STS-QYZX-114] ; Two-Hundred Talents Plan of Yantai [Y739011021]
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordZERO-VALENT IRON ; AQUEOUS-SOLUTIONS ; REDUCTION ; BIOCHAR ; NANOPARTICLES ; CR(VI) ; TETRABROMOBISPHENOL ; DEGRADATION ; REMEDIATION ; GROUNDWATER
WOS IDWOS:000530709300083
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/25018
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China;
2.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Lu, Jian,Zhang, Cui,Wu, Jun. One-pot synthesis of magnetic algal carbon/sulfidated nanoscale zerovalent iron composites for removal of bromated disinfection by-product[J]. CHEMOSPHERE,2020,250:126257.
APA Lu, Jian,Zhang, Cui,&Wu, Jun.(2020).One-pot synthesis of magnetic algal carbon/sulfidated nanoscale zerovalent iron composites for removal of bromated disinfection by-product.CHEMOSPHERE,250,126257.
MLA Lu, Jian,et al."One-pot synthesis of magnetic algal carbon/sulfidated nanoscale zerovalent iron composites for removal of bromated disinfection by-product".CHEMOSPHERE 250(2020):126257.
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