Mussel-inspired polydopamine functionalized with ionic liquid as a novel, eco-efficient adsorbent for the selective removal of anionic pollutants from aqueous solutions

Alwan, Rawan Abu; Zhuman, Botagoz; Kumar, Mahendra; Arafat, Hassan A.; AlNashef, Inas M.

doi:10.1016/j.cej.2022.140498

Cited by 15 publications

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher adsorption capacity of GSHOAC indicates that it may be better suited for applications where high contaminant removal efficiency is paramount. This research is similar to a previous study to develop an adsorbent using mussels that oxidizes with a polymer of about 100 mg/g (Abu Alwan et al., 2023).…”

Section: Resultssupporting

confidence: 88%

Effect of oxidated golden shower on the adsorption of diclofenac sodium in wastewater

Arliyani,

Syaifuddin,

Ni'am

et al. 2023

Environmental Quality Mgmt

View full text Add to dashboard Cite

This research aimed to modify activated carbon into oxidated activated carbon because it can effectively remove diclofenac sodium (DCF) and increase the adsorption capability. In this study of the several variations of initial concentration and contact time, those variations affected the optimal result. To determine, the removal efficiency of diclofenac sodium used Golden Shower Activated Carbon based on the contact time variation and the optimum contact time compared to Golden Shower Oxidated Activated Carbon as adsorbent on the batch method and to know the isotherm model and the kinetic model of the adsorbent on the adsorption in diclofenac sodium solution. The pHPZC for GSHAC and GSHOAC were 2.4 and 9.3. The optimum contact time for GSHAC was 225 min with the capacity (qt = 184.71 mg/g). The optimum contact time for GSHOAC was 169 min with the capacity (qt = 188.34 mg/g). The Isotherm model, kinetics model, and the physical characterization of the biosorbent were thoroughly investigated. The isotherm model chosen in the adsorption process for GSHAC and GSHOAC was the Langmuir model (R2 = 0.985 and R2 = 0.973). The pseudo‐second‐order for GSHAC and GSHOAC was confirmed to be a kinetic pseudo‐second‐order model of the adsorption with R2 values of 0.9566 and 0.9986. The model represents that the reaction from the adsorbent to the solution was double the initial concentration. Based on SEM analysis after the adsorption process, it was found that flakes of adsorbent before adsorption had many layers of pores, causing an irregular texture after adsorption showed that GSHAC and GSHOAC were fragmented and had many layers of pores that were closed and tight because it adsorbed DCF.

show abstract

Section: Resultssupporting

confidence: 88%

Effect of oxidated golden shower on the adsorption of diclofenac sodium in wastewater

Arliyani,

Syaifuddin,

Ni'am

et al. 2023

Environmental Quality Mgmt

View full text Add to dashboard Cite

show abstract

“…The decreasing efficiency might be due to the loss of the 3D/BGO adsorbent in small fragments during the adsorption-desorption study. Furthermore, the decreasing trend could also be attributed to the un-eluted AMI that was chemically bound onto 3D/BGO surfaces as well as the poisoning effect from the alcohol-based eluting agent [50]. Nonetheless, this study suggested that, overall, the adsorbent was a viable adsorbent for capturing AMI in contaminated water while preserving 86.20% of its initial adsorption capacity.…”

Section: Regenerationmentioning

confidence: 79%

Remediation of Amitriptyline Pharmaceutical Wastewater by Heteroatom-Doped Graphene Oxide: Process Optimization and Packed-Bed Studies

et al. 2023

View full text Add to dashboard Cite

Amitriptyline residue released into the aquatic ecosystem can have detrimental consequences on marine organisms and human wellbeing via consumption of polluted water. With a uniquely large surface area and abundant functionalities, graphene oxide adsorption offers a remediation solution for such water pollution. This study focused on synthesizing a novel graphene-based adsorbent via ice-templating of boron-doped graphene substrate. The batch adsorption performance of the as-synthesized adsorbent was explored by central composite design (CCD), while its potential large-scale application was evaluated with a packed-bed column study. The CCD optimized conditions of 12.5 mg dosage, 32 min adsorption time, 30 °C operating temperature and 70 ppm concentration produced the highest removal efficiency of 87.72%. The results of the packed-bed study indicated that continuous adsorption of amitriptyline was best performed at a graphene bed of 3.5 cm in height, with 100 ppm of the pharmaceutical solution flowing at 2 mL/min. Furthermore, the breakthrough curve was effectively portrayed by the Log Bohart–Adams model. The as-synthesized adsorbent showed a high regeneration potential using ethanol eluent via multiple adsorption–desorption cycles. The results suggest the boron-doped graphene adsorbent in packed-bed as a highly effective system to remediate amitriptyline in an aqueous environment.

show abstract

“…The study of the adsorption kinetics is an integral part of the adsorption process. The pseudo-first-order kinetic model and pseudo-second-order kinetic model were used to describe the kinetics of MB dye adsorption on the surface of ANF microbeads. , The optimal experimental conditions are as follows: the pH is 9, the initial dye concentration is 20 mg/mL, the adsorbent dosage is 0.15 g, and the adsorption time is 3 h. A plot of the adsorption of MB by ANF microbeads obtained from different solidification baths versus time is shown in Figure c. As the adsorption time increases, the amount of adsorption gradually equilibrates.…”

Section: Resultsmentioning

confidence: 99%

Electrospray Preparation of Robust Aramid Nanofiber Microbead Adsorbents for Wastewater Treatment

Yang¹,

Zhao

Liu

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Adsorption is one of the promising techniques for effectively removing dyes from wastewater due to its low cost and high efficiency. However, most reported adsorbents still suffer from low adsorption capacity and stability under harsh conditions, which severely limit their practical application. Herein, we report a novel method to prepare robust aramid nanofiber (ANF) microbead adsorbents using electrospraying technology and solvent replacement method. The structure of the ANF microbeads can be easily manipulated by changing the coagulation baths, thus achieving fabricated ANF microbeads with a uniform and highly porous microstructure. The as-prepared ANF microbeads show high removal efficiency toward methylene blue (MB) with a maximum adsorption capacity of up to 267 mg/g, which can be attributed to the strong π−π stacking, hydrogen bonding, and electrostatic attraction between MB and the microbeads. Moreover, ANF microbeads show outstanding stability within a wide pH range (from 2 to 12) with an MB removal efficiency over 90% even after five adsorption−desorption cycles at pH = 12. Additionally, the ANF microbeads can maintain their structure integrity after the adsorption process and can be easily separated from the solution by static sedimentation because of their robust structure. This work provides a new strategy to design robust microbeads with excellent adsorption performance and stability, demonstrating their great potential in various environmental engineering applications.

show abstract

Mussel-inspired polydopamine functionalized with ionic liquid as a novel, eco-efficient adsorbent for the selective removal of anionic pollutants from aqueous solutions

Cited by 15 publications

References 53 publications

Effect of oxidated golden shower on the adsorption of diclofenac sodium in wastewater

Effect of oxidated golden shower on the adsorption of diclofenac sodium in wastewater

Remediation of Amitriptyline Pharmaceutical Wastewater by Heteroatom-Doped Graphene Oxide: Process Optimization and Packed-Bed Studies

Electrospray Preparation of Robust Aramid Nanofiber Microbead Adsorbents for Wastewater Treatment

Contact Info

Product

Resources

About