Removal and magnetic recovery of heavy metals and pesticides from soil by layered double hydroxides modified biotite

Huan, Hanhan; Xia, Caifeng; Liang, Derui; Xie, Yuan; Kong, Fanping; Fu, Jinxiu; Dou, Zhiwen; Yang, Qinghua; Suo, Wenjing; Zhang, Qian; Meng, Zilin

doi:10.1016/j.cej.2021.134113

Cited by 35 publications

(10 citation statements)

References 65 publications

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“…In order to further investigate the adsorption process of CR on LDHs, the adsorption isotherms [40] of LDHs−S2 were measured to investigate the adsorption capacity of the samples at different initial concentrations of CR solution. Figure 4(e) shows the adsorption isotherms of CR on the sample at 298 K, 303 K, 308 K. Langmuir and Freundlich models (calculation by equation (9) (10)) were used to analyze the experimental data [41] . The correlation coefficient ( R 2 ) values (Table 4) were fitted from 298 K, 303 K and 308 K with R 2 values of 0.996, 0.985 and 0.985 for the Langmuir model and 0.984, 0.978 and 0.840 for the Freundlich isotherm, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 4(e) shows the adsorption isotherms of CR on the sample at 298 K, 303 K, 308 K. Langmuir and Freundlich models (calculation by equation ( 9) ( 10)) were used to analyze the experimental data. [41] The correlation coefficient (R 2 ) values (Table 4) were fitted from 298 K, 303 K and 308 K with R 2 values of 0.996, 0.985 and 0.985 for the Langmuir model and 0.984, 0.978 and 0.840 for the Freundlich isotherm, respectively. The R 2 fitting degree of Langmuir model was higher than that of Freundlich model, and the maximum adsorption capacity was 2727.75 mg/g.…”

Section: Chemistryselectmentioning

confidence: 99%

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Superb Adsorption of Congo Red by Zn‐Cr Layered Bimetallic Hydroxides Prepared from Electroplated Sludge

Kong

Xie

et al. 2022

ChemistrySelect

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It is a challenge to achieve the harmless treatment and resourceful use of various metal elements in electroplating sludge, and converting them into functional materials has become an important technological direction. Based on the existence of various metal ions in electroplating sludge, sodium oleate intercalated Zn−Cr‐LDHs (Zn−Cr‐layered double hydroxides) were prepared by two‐phase solution heating method. The adsorption process of the prepared LDHs for Congo red (CR) in aqueous solution can be described by Langmuir isotherm model and pseudo‐second‐order kinetic model and the maximum adsorption capacity is 2750.43 mg/g. The results of TEM and XPS show that the adsorption mechanism is dominated by electrostatic adsorption, ion exchange process, hydrogen bonding interaction and surface complexation. Therefore, this paper provides a strategy for recovering metal elements from electroplating sludge to prepare LDHs adsorption materials with ultra‐high adsorption capacity.

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Section: Resultsmentioning

confidence: 99%

Section: Chemistryselectmentioning

confidence: 99%

Superb Adsorption of Congo Red by Zn‐Cr Layered Bimetallic Hydroxides Prepared from Electroplated Sludge

Kong

Xie

et al. 2022

ChemistrySelect

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“…3). The Langmuir and Freundlich models were employed to fit the adsorption isotherm, [37][38][39][40] and the fitting results were graphed in Fig. 4.…”

Section: Adsorption Studies Of Pb 2+mentioning

confidence: 99%

Efficient and selective removal of Pb²⁺ from aqueous solution by using an O⁻ functionalized metal–organic framework

Jiang

Ding

et al. 2022

Dalton Trans.

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“…Many attempts have therefore been made to eliminate these dangerous toxicants from environmental matrices. These efforts have made use of a range of removal techniques, including adsorption, chemical precipitation, membrane separation, bio‐electrochemical devices, advanced oxidation processes, and photocatalytic degradation [9–18] . The photocatalytic approach has rekindled the interest of scientists as an alternate strategy for the complete mineralization of pesticides.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesized Metallic Nanoarchitecture for Photocatalytic Degradation of Emerging Organochlorine and Organophosphate Pollutants: A Review

Emmanuel,

Idris,

Olawoyin

et al. 2024

ChemistrySelect

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The use of efficacious and cost‐effective pesticides (OP and OC) has undoubtedly proven to be a blessing and a baron because these pesticides are safeguarding the world from food insecurity. Unfortunately, their presence in aquatic bodies brings about an upsurge in water pollution. Amazingly, the photocatalytic degradation approach utilizing biogenic nanoparticles (BNPs) is a trendy state‐of‐the‐art approach and has been established to be a sustainable methodology for the complete mineralization of contaminants into harmless molecules. Thus, this work holistically explores the use of BNPs for photocatalytic degradation of OP and OC. Based on the review, it was found that the least amount of time needed for degradation was less than 5 minutes, while the maximum degradation efficiency was >80 %. The dominant radicals participating in the degradation are ⋅OH and O2⋅ and this radical dominance was enhanced by the oxygenated functional groups present in the biogenic entities employed for the biosynthesis of BNPs. The photocatalytic degradation data fits the pseudo‐first‐order and Langmuir isotherm models (R2 > 0.9), which indicates that the main adsorption mechanisms involved during electron‐hole pair formation and photocatalytic degradation are physisorption and monolayer at the surface of the BNPs. BNPs can sustain a >80 % degradation efficiency for approximately 5 cycles and are reusable for up to 8 cycles. It was also revealed that plants constitute 80 % of the engaged biogenic entities for BNP synthesis. Ultimately, this work offers novel avenues and future research hotspots that might accelerate the use of BNPs for sustainable agricultural and wastewater management practices.

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Removal and magnetic recovery of heavy metals and pesticides from soil by layered double hydroxides modified biotite

Cited by 35 publications

References 65 publications

Superb Adsorption of Congo Red by Zn‐Cr Layered Bimetallic Hydroxides Prepared from Electroplated Sludge

Superb Adsorption of Congo Red by Zn‐Cr Layered Bimetallic Hydroxides Prepared from Electroplated Sludge

Efficient and selective removal of Pb²⁺ from aqueous solution by using an O⁻ functionalized metal–organic framework

Biosynthesized Metallic Nanoarchitecture for Photocatalytic Degradation of Emerging Organochlorine and Organophosphate Pollutants: A Review

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Removal and magnetic recovery of heavy metals and pesticides from soil by layered double hydroxides modified biotite

Cited by 35 publications

References 65 publications

Superb Adsorption of Congo Red by Zn‐Cr Layered Bimetallic Hydroxides Prepared from Electroplated Sludge

Superb Adsorption of Congo Red by Zn‐Cr Layered Bimetallic Hydroxides Prepared from Electroplated Sludge

Efficient and selective removal of Pb2+ from aqueous solution by using an O− functionalized metal–organic framework

Biosynthesized Metallic Nanoarchitecture for Photocatalytic Degradation of Emerging Organochlorine and Organophosphate Pollutants: A Review

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Efficient and selective removal of Pb²⁺ from aqueous solution by using an O⁻ functionalized metal–organic framework