Adsorptive Removal of a Pharmaceutical and Personal Care Product “Ibuprofen” from Water with “Metal-Organic Frameworks”

Tumpa, Naz Fathma; Jeong, Yeon-Koo

doi:10.20448/journal.506.2018.51.1.7

Cited by 2 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most used compound for conducting adsorption studies in the literature was BP-3. To remove it from aqueous samples, the adsorbent materials used were the following: lipophilic organo-silicate, laponite and montmorillonite [28], different types of carbon materials (granular activated carbon, powered activated carbon and carbon nanotubes) [46], metal-organic framework (MOF) [16,47] and nanomaterials. Under optimal conditions, the adsorbed quantities of BP-3 were 340 mg/g on organo-silicate, 137 mg/g on laponite and 192.3 mg/g montmorillonite [28].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Adsorption of Sunscreen Compounds from Wastewater Using Commercial Activated Carbon: Detailed Kinetic and Thermodynamic Analyses

Gheorghe,

Iancu,

Ionescu

et al. 2023

Water

View full text Add to dashboard Cite

Sunscreen compounds are one of the most toxic substances detected in the aqueous environment. However, these molecules are continuously utilized in a various range of products to provide protection against UV radiation. The removal of three sunscreen compounds, 4-hydroxybenzophenone (4-HBP), 2,4-dihydroxybenzophenone (BP-1) and oxybenzone (BP-3), by commercial activated carbon (AC) was investigated using batch adsorption experiments. Different operational characteristics, such as adsorbent dosing, interaction time, solution pH and starting sunscreen compound concentration, were studied. The adsorption capacity of the AC material was assessed using a liquid chromatograph associated with a mass spectrometer detector (LC–MS/MS). Two isotherm models were utilized to explained the target compound adsorption phenomenon (Langmuir and Freundlich), while pseudo-first and -second kinetic orders and thermodynamics were utilized to examine the adsorption mechanism. The maximum adsorption capacities determined from the Langmuir isotherms were established as 43.8 mg/g for 4-HBP, 48.8 mg/g for BP-3 and 41.1 mg/g for BP-1. The thermodynamic parameters revealed the following: a negative ΔG° (<20 KJ/mol) and ΔH° and a positive ΔS° of the targeted sunscreen compounds adsorbed onto AC suggest a spontaneous and exothermic adsorption process, favored by lower temperature, proving that the physical sorption mechanism prevailed. Effective adsorption of 4-HBP, BP-3 and BP-1 from real wastewater samples proved the viability of sunscreen compound removal using commercial AC material. This paper offers promising results on a sustainable, economical and environmentally friendly method for removal of ubiquitous sunscreen compounds from wastewater, as a possible enhancement of treatment processes.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Using different carbon-based materials, the results revealed good adsorption capacity on BP-3, the highest being 450.36 mg/g, being obtained for poweractivated carbon [46]. Using different types of MOFs, the highest oxybenzone adsorption capacities were 560 mg/g [16], 73.50 mg/g and 120 mg/g, respectively [47].…”

Section: Discussionmentioning

confidence: 99%