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Fabrication of recyclable Fe chelated aminated polypropylene fiber for efficient clean-up of phosphate wastewater

《化学科学与工程前沿(英文)》 2023年 第17卷 第7期   页码 840-852 doi: 10.1007/s11705-022-2253-0

摘要: Herein, a Fe3+-loaded aminated polypropylene fiber has been reported as an efficient phosphate adsorbent. The remarkable phosphate removal ability of the fiber is due to Fe3+ immobilization, and it demonstrates a maximum adsorption capacity of 33.94 mg·P·g–1. Adsorption experiments showed that the fiber is applicable over a wide pH range from 2 to 9. Furthermore, the adsorption kinetics and isotherm data were consistent with the pseudo-second-order and Langmuir adsorption models, respectively. The adsorption equilibrium of the fiber for phosphate was reached within 60 min, indicating an efficient monolayer chemisorption process. Moreover, the adsorbent maintained prominent phosphate removal in the presence of competitive ions such as NO3 and Cl, exhibiting high selectivity. More importantly, the fiber demonstrated excellent reusability (5 times) and low adsorption limit below 0.02 mg·P·g–1. In addition, the phosphate removal efficiency of the fiber can exceed 99% under continuous flow conditions. The adsorption mechanism was studied by X-ray photoelectron spectroscopy, showing that the adsorption of phosphate on the fiber mainly depended on the chemical adsorption of the modified Fe3+. Overall, this study proves that the fiber possesses many advantages for phosphate removal, including high adsorption efficiency, lower treatment limit, good recyclability, and environmental friendliness.

关键词: phosphate adsorption     aminated polypropylene fiber     Fe3+     ligand exchange     reusability    

Simple fabrication of carboxymethyl cellulose and κ-carrageenan composite aerogel with efficient performance in removal of fluoroquinolone antibiotics from water

《环境科学与工程前沿(英文)》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1568-x

摘要:

● A composite aerogel was simply obtained to remove various fluoroquinolones (FQs).

关键词: Composite aerogel of carboxymethyl cellulose and κ-carrageenan     Fluoroquinolone antibiotics     Adsorption performance     Coexisting substances     Adsorption mechanism     Reusability    

Sponge-based materials for oil spill cleanups: A review

Edward Mohamed Hadji, Bo Fu, Ayob Abebe, Hafiz Muhammad Bilal, Jingtao Wang

《化学科学与工程前沿(英文)》 2020年 第14卷 第5期   页码 749-762 doi: 10.1007/s11705-019-1890-4

摘要: Elimination of leaked oil from aquatic environs has recently gained importance owing to the disasters associated with leakages into marine environments. The need for an environmentally friendly and viable line of action concerning the environs has brought forward numerous affordable, non-toxic, and decomposable materials; further, diverse biomasses for fabricating nano- to micro-scale materials, membranes, and sponges/aerogels have also been incorporated for the elimination and retrieval of oils from water. Moreover, selectivity, sorption capacity, and reusability of these materials after the retrieval of oils are also desired from the viewpoint of sustainability. This review encompasses the recent progress in the field of elimination and retrieval of oil spills using various sponge-based materials.

关键词: membranes     sponges     reusability     sorbents     selectivity     sorption capacity    

One-pot hydrothermal fabrication of BiVO/FeO/rGO composite photocatalyst for the simulated solar light-driven degradation of Rhodamine B

《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1470-y

摘要:

• BiVO4/Fe3O4/rGO has excellent photocatalytic activity under solar light radiation.

关键词: Photocatalysis     Ternary magnetic photocatalyst     Visible-light-driven     Free radicals trapping     Reusability     Recycling    

标题 作者 时间 类型 操作

Fabrication of recyclable Fe chelated aminated polypropylene fiber for efficient clean-up of phosphate wastewater

期刊论文

Simple fabrication of carboxymethyl cellulose and κ-carrageenan composite aerogel with efficient performance in removal of fluoroquinolone antibiotics from water

期刊论文

Sponge-based materials for oil spill cleanups: A review

Edward Mohamed Hadji, Bo Fu, Ayob Abebe, Hafiz Muhammad Bilal, Jingtao Wang

期刊论文

One-pot hydrothermal fabrication of BiVO/FeO/rGO composite photocatalyst for the simulated solar light-driven degradation of Rhodamine B

期刊论文