Sodium Alginate/Sulfide Coated Iron Nanoparticles for the Persulfate Activated Degradation of Tetrabromobisphenol a in Soil: Performance, Mechanism and Impacts on the Soil System

2022 ◽  
Author(s):  
Xuehong Yuan ◽  
Taolue Li ◽  
Nandong Xue ◽  
Meizhen Sun ◽  
Jie Hua
Keyword(s):  
Sodium Alginate ◽  
Iron Nanoparticles ◽  
Tetrabromobisphenol A ◽  
Soil System

Modification of Zero Valent Iron Nanoparticles by Sodium Alginate and Bentonite: Enhanced Transport, Effective Hexavalent Chromium Removal and Reduced Bacterial Toxicity

2020 ◽  
Author(s):  
Mengya Zhang ◽  
Kexin Yi ◽  
Xiangwei Zhang ◽  
Peng Han ◽  
Wen Liu ◽  
...  
Keyword(s):  
Sodium Alginate ◽  
Groundwater Remediation ◽  
Iron Nanoparticles ◽  
Zero Valent Iron ◽  
Sedimentation Rates ◽  
Chromium Removal ◽  
Zeta Potentials ◽  
Bacterial Toxicity ◽  
Zero Valent Iron Nanoparticles

<p>The rapid aggregation/sedimentation and decreased transport of nanoscale zero-valent iron (nZVI) particles limit their application in groundwater remediation. To decrease the aggregation/sedimentation and increase the transport of nZVI, sodium alginate (a neutral polysaccharide) and bentonite (one type of ubiquitous clay) were employed to modify nZVI. Different techniques were utilized to characterize the modified nZVI. We found that modification with either sodium alginate or bentonite could disperse the nZVI and shifted their zeta potentials from positive to negative. Comparing with the bare nZVI, the sedimentation rates of modified nZVI either by sodium alginate or bentonite are greatly decreased and their transport are significantly increased. The transport of modified nZVI can be greatly increased by increasing flow rate. Furthermore, Cr(VI) can be efficiently removed by the modified nZVI (both sodium alginate and bentonite modified nZVI). Comparing with bare nZVI, the two types of modified nZVI contain lower toxicities to Escherichia coli. The results of this study indicate that both sodium alginate and bentonite can be employed as potential stabilizers to disperse nZVI and improve their application feasibility for in situ groundwater remediation.</p>

scholarly journals Palladium/iron nanoparticles stimulate tetrabromobisphenol a microbial reductive debromination and further mineralization in sediment

2020 ◽  
Vol 135 ◽  
pp. 105353 ◽  
Author(s):  
Xiao-Qiu Lin ◽  
Zhi-Ling Li ◽  
Ying-Ying Zhu ◽  
Fan Chen ◽  
Bin Liang ◽  
...  
Keyword(s):  
Iron Nanoparticles ◽  
Tetrabromobisphenol A

Enhanced degradation of malachite by iron nanoparticles encapsulated in sodium alginate beads

2019 ◽  
Vol 77 ◽  
pp. 238-242 ◽  
Author(s):  
Shenliang Zeng ◽  
Xiaoying Jin ◽  
Dharmarajan Rajarathnam ◽  
Zuliang Chen
Keyword(s):  
Sodium Alginate ◽  
Iron Nanoparticles ◽  
Alginate Beads ◽  
Enhanced Degradation

Ligand-Assisted Sequential Redox Degradation of Tetrabromobisphenol A Using Bimetallic Zero-Valent Iron Nanoparticles

2018 ◽  
Vol 57 (51) ◽  
pp. 17329-17337 ◽  
Author(s):  
Chung-Seop Lee ◽  
Da-Som Oh ◽  
Thao Thanh Le ◽  
Jianyu Gong ◽  
Yoon-Seok Chang
Keyword(s):  
Iron Nanoparticles ◽  
Zero Valent Iron ◽  
Tetrabromobisphenol A ◽  
Zero Valent Iron Nanoparticles

Sodium alginate assisted construction of ZnSnO 3 microspheres enhanced HCHO sensing performance under UV illumination at room temperature

2019 ◽  
Vol 14 (14) ◽  
pp. 1381-1384
Author(s):  
Jie Chen ◽  
Zhihua Ying ◽  
Peng Zheng ◽  
Rongfa Gao ◽  
Jinbang Mei
Keyword(s):  
Sodium Alginate ◽  
Room Temperature ◽  
Uv Illumination ◽  
Sensing Performance

Creation of new local coverings of hemostatic action on the basis of sodium alginate

2018 ◽  
Vol 15 (3) ◽  
pp. 222-229
Author(s):  
G.G. Belozerskaya ◽  
D.Yu. Bychichko ◽  
V.A. Kabak ◽  
A.R. Lempert ◽  
O.E. Nevedrova ◽  
...  
Keyword(s):  
Sodium Alginate
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