Comparison of chemical, ultrasonic and thermal regeneration of carbon nanotubes for acetaminophen, ibuprofen, and triclosan adsorption

Wang, Yifei; Wei, Xiuming; Zhang, Ruochu; Wu, Yingfeng; Farid, Muhammad Usman; Huang, Haiou

doi:10.1039/c7ra08812d

Cited by 32 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, considering the effectiveness of the diclofenac release, 0.25 mol/L sodium chloride solution was regarded as the most suitable regeneration solution for the investigated CLCS adsorbents. This is in agreement with the results of another study [66] when ibuprofen containing carboxylate groups was adsorbed on carbon nanotubes and the regeneration performance of 0.1 mol/L sodium chloride solution was much better than that of methanol or ethanol. The authors of this study [66] proposed the potential mechanism of chemical regeneration, stating that sodium and chloride ions are capable of weakening electrostatic interaction by replacing cationic or anionic adsorbates on the adsorbent surface and thus promoting the desorption process.…”

Section: Regeneration Of Adsorbentssupporting

confidence: 92%

Cross-Linked Cationic Starch Microgranules for Removal of Diclofenac from Aqueous Systems

Navikaite-Snipaitiene,

Andriunaite,

Rosliuk

et al. 2023

Water

View full text Add to dashboard Cite

The occurrence of pharmaceuticals, such as anti-inflammatories, antibiotics, antidepressants, antihistamines, and others in the effluents, is a very urgent problem and a big challenge for municipal wastewater treatment companies. Without special treatment, these microcontaminants are retained in discharged water and sewage sludge and this is a high threat to the environment. Cross-linked cationic starch (CLCS) adsorbents with various degrees of substitution (DS) of cationic groups were employed for the removal of diclofenac from aqueous systems. The equilibrium adsorption studies revealed that the driving force of adsorption was the electrostatic interaction between carboxylate groups of diclofenac and quaternary ammonium groups of CLCS. The sorption capacities of CLCS with DS of 0.21 (CLCS-0.21) and DS of 0.33 (CLCS-0.33) varied from 329 to 370 mg/g and from 597 to 684 mg/g, respectively. The release studies revealed that adsorbed diclofenac can be efficiently released into 0.25 mol/L NaCl solution. Adsorbent regeneration studies showed that after four regeneration cycles, the ability of CLCS-0.21 and CLCS-0.33 to remove diclofenac from the aqueous medium decreased by 6% and 3%, respectively. To conclude, CLCS-0.33 exhibited high absorption capacity and sustainability due to good recoverability properties and can be regarded as a promising microcontaminant adsorbent to be used in wastewater treatment processes.

show abstract

Section: Regeneration Of Adsorbentssupporting

confidence: 92%

Cross-Linked Cationic Starch Microgranules for Removal of Diclofenac from Aqueous Systems

Navikaite-Snipaitiene,

Andriunaite,

Rosliuk

et al. 2023

Water

View full text Add to dashboard Cite

show abstract

“…Table S3. Detection of AC in lake water samples with N-SC/β-CD-MOFs/GCE ( n = 5) [ 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ].…”

mentioning

confidence: 99%

Nitrogen Doped Porous Biochar/β-CD-MOFs Heterostructures: Bi-Functional Material for Highly Sensitive Electrochemical Detection and Removal of Acetaminophen

Zou

et al. 2023

Molecules

View full text Add to dashboard Cite

Acetaminophen (AC) is one of the most common over-the-counter drugs, and its pollutant in groundwater has attracted more attention due to its serious risk to human health. Currently, the research on AC is mainly focused on its detection, but few are concerned about its removal. In this work, for the first time, nitrogen-doped Soulangeana sepals derived biochar/β-cyclodextrin-Metal-organic frameworks (N-SC/β-CD-MOFs) composite was proposed for the simultaneous efficient removal and detection of AC. N-SC/β-CD-MOFs combined the properties of host-guest recognition of β-CD-MOFs and porous structure, high porosity, and large surface area of N-SC. Their synergies endowed N-SC/β-CD-MOFs with a high adsorption capacity toward AC, which was up to 66.43 mg/g. The adsorption type of AC on the surface of N-SC/β-CD-MOFs conformed to the Langmuir adsorption model, and the study of the adsorption mechanism showed that AC adsorption on N-SC was mainly achieved through hydrogen bonding. In addition, the high conductivity, large specific surface area and abundant active sites of N-SC/β-CD-MOFs were of great significance to the high-performance detection of AC. Accordingly, the sensor prepared with N-SC/β-CD-MOFs presented a wide linear range (1.0–30.0 μM) and a low limit of detection of 0.3 nM (S/N = 3). These excellent performances demonstrate that N-SC/β-CD-MOFs could act as an efficient dual-functional material for the detection and removal of AC.

show abstract

“…Researchers found that fullerenes with positive charge were used to delivery small molecules owing to their low cost and high efficacy [ 365 ]. Furthermore, the use of noncovalently adsorbed drugs and fullerenes have been reported; therefore, they could present acceptable and efficient transdermal drug delivery at room temperature [ 366 ]. With the specific structure and modified group used to increase delivery efficiency, there is no doubt that fullerene-based delivery systems offer many opportunities in disease treatment.…”

Section: Perspectives and Challengesmentioning

confidence: 99%

Microcarriers in application for cartilage tissue engineering: Recent progress and challenges

Ding

Liu

Zhao

et al. 2022

Bioactive Materials

View full text Add to dashboard Cite

Comparison of chemical, ultrasonic and thermal regeneration of carbon nanotubes for acetaminophen, ibuprofen, and triclosan adsorption

Abstract: Recovering the adsorption capacity of multi-walled carbon nanotubes (MWCNT) is of importance to the sustainable use of MWCNT for the adsorption of pharmaceuticals and personal care products (PPCP).

Cited by 32 publications

References 34 publications

Cross-Linked Cationic Starch Microgranules for Removal of Diclofenac from Aqueous Systems

Cross-Linked Cationic Starch Microgranules for Removal of Diclofenac from Aqueous Systems

Nitrogen Doped Porous Biochar/β-CD-MOFs Heterostructures: Bi-Functional Material for Highly Sensitive Electrochemical Detection and Removal of Acetaminophen

Microcarriers in application for cartilage tissue engineering: Recent progress and challenges

Contact Info

Product

Resources

About