Preparation of MgAl-LDHs loaded with blast furnace slag and its removal of Cu(II) and methylene blue from aqueous solution

Blast furnace slag (BFS) is a kind of waste produced in industrial production, as well as a valuable secondary resource. In this paper, layered double hydroxides composites (BFS/LDHs) were prepared by aqueous polymerization, with industrial waste BFS as modifier and magnesium nitrate, aluminium nitr...

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Publié dans:Environmental technology. - 1993. - 45(2024), 26 vom: 20. Nov., Seite 5688-5699
Auteur principal: Zhang, Fengrong (Auteur)
Autres auteurs: Zhang, Cuilan, Zhang, Binghan, Han, Dandan, Du, Longwei, Wu, Lishun
Format: Article en ligne
Langue:English
Publié: 2024
Accès à la collection:Environmental technology
Sujets:Journal Article Blast furnace slag adsorption heavy metal layered double hydroxides organic dyes solid concentration effect Methylene Blue T42P99266K Copper plus... 789U1901C5 Water Pollutants, Chemical Industrial Waste Aluminum Compounds
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520 |a Blast furnace slag (BFS) is a kind of waste produced in industrial production, as well as a valuable secondary resource. In this paper, layered double hydroxides composites (BFS/LDHs) were prepared by aqueous polymerization, with industrial waste BFS as modifier and magnesium nitrate, aluminium nitrate, and urea as raw materials. BFS/LDHs have been characterized by using scanning electron microscopy (SEM), fourier infrared spectrometer (FT IR), x-ray diffraction (XRD), and the specific surface area analyser (BET). The adsorption of BFS/LDHs on Cu (II) and methylene blue (MB) was investigated by batch experiments. The results showed that the adsorption capacity of BFS/LDHs to Cu (II) is stronger than that of MB. What's more, the solid concentration effect was found in the process of sorption kinetics and sorption isotherms. The sorption kinetics curves of Cu (II) and MB on BFS/LDHs were well fitted by the quasi-second-order kinetics under different adsorbent concentrations. Langmuir and Freundlich sorption isotherm models were used to analyse the adsorption. It showed that the adsorption conforms to Langmuir and Freundlich's adsorption isotherm models. The BFS/LDHs composites have good recycling availability in this adsorption process of Cu (II) and MB, the removal capacity of which was reduced by 16.1% and 3.8% after being recycled for six times, respectively. More importantly, BFS/LDHs composites are not only expected to become a sewage treatment agent, but also to solve the problem of industrial waste treatment, which is a win-win strategy 
650 4 |a Journal Article 
650 4 |a Blast furnace slag 
650 4 |a adsorption 
650 4 |a heavy metal 
650 4 |a layered double hydroxides 
650 4 |a organic dyes 
650 4 |a solid concentration effect 
650 7 |a Methylene Blue  |2 NLM 
650 7 |a T42P99266K  |2 NLM 
650 7 |a Copper  |2 NLM 
650 7 |a 789U1901C5  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Industrial Waste  |2 NLM 
650 7 |a Aluminum Compounds  |2 NLM 
700 1 |a Zhang, Cuilan  |e verfasserin  |4 aut 
700 1 |a Zhang, Binghan  |e verfasserin  |4 aut 
700 1 |a Han, Dandan  |e verfasserin  |4 aut 
700 1 |a Du, Longwei  |e verfasserin  |4 aut 
700 1 |a Wu, Lishun  |e verfasserin  |4 aut 
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773 1 8 |g volume:45  |g year:2024  |g number:26  |g day:20  |g month:11  |g pages:5688-5699 
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