Thiamine-based organoclay for phenol removal from water

Moshe, Shany Ben; Rytwo, Giora

doi:10.1016/j.clay.2018.01.003

Cited by 42 publications

(14 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The colloidal charge of the organoclay (bent-B1) was around zero due to the exchange of B1 with the inorganic ions, forming a non-charged surface. Similar values were observed in organoclays with organocations added at amounts near the cation exchange capacity of the clay as in B1- [52], berberine- [81], crystal violet, and tetraphenyl-phosphonium [82] smectites. For the raw bentonite and Ca-SWy-1, the increase in the electrokinetic colloidal charge, making it closer to neutralization, is attributed to the adsorption of the hydrophobic carbamazepine molecule.…”

Section: Colloidal Chargesupporting

confidence: 73%

“…The first part of the article includes CBZ adsorption isotherms on natural or modified clay minerals (several smectites, sepiolite, and hydrophobically modified montmorillonite). Fit to Langmuir, dual-mode and Sips models [52,53] was evaluated, and interpretation of the sorption mechanism is presented based on mea-suring the cations released during the processes, FTIR, and colloidal particle charge of CBZ-clay. The second part includes photocatalysis of carbamazepine using UVC irradiation and combinations of homo-and heterogeneous synthetic clay catalysts.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Carbamazepine Removal by Clay-Based Materials Using Adsorption and Photodegradation

Levakov

Shahar

Rytwo

2022

Water

Self Cite

View full text Add to dashboard Cite

Carbamazepine (CBZ) is one of the most common emerging contaminants released to the aquatic environment through domestic and pharmaceutical wastewater. Due to its high persistence through conventional degradation treatments, CBZ is considered a typical indicator for anthropogenic activities. This study tested the removal of CBZ through two different clay-based purification techniques: adsorption of relatively large concentrations (20–500 μmol L−1) and photocatalysis of lower concentrations (<20 μmol L−1). The sorption mechanism was examined by FTIR measurements, exchangeable cations released, and colloidal charge of the adsorbing clay materials. Photocatalysis was performed in batch experiments under various conditions. Despite the neutral charge of carbamazepine, the highest adsorption was observed on negatively charged montmorillonite-based clays. Desorption tests indicate that adsorbed CBZ is not released by washing. The adsorption/desorption processes were confirmed by ATR-FTIR analysis of the clay-CBZ particles. A combination of synthetic montmorillonite or hectorite with low H2O2 concentrations under UVC irradiation exhibits efficient homo-heterogeneous photodegradation at μM CBZ levels. The two techniques presented in this study suggest solutions for both industrial and municipal wastewater, possibly enabling water reuse.

show abstract

Section: Colloidal Chargesupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Carbamazepine Removal by Clay-Based Materials Using Adsorption and Photodegradation

Levakov

Shahar

Rytwo

2022

Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…How to improve the adsorption performance of adsorbents and reduce its cost has always been a concern of researchers (Diagboya & Dikio, 2018). Based on this goal, the ANNUAL LITERATURE REVIEW existing research is mainly divided into two directions: modification of cheap adsorbents and development of new adsorbent (Aarrokhi-Rad, Mohammadalipour, & Shahrabi, 2018;Ajmal et al, 2018;Arsh Basheer, 2018;Kausar et al, 2018;Moshe & Rytwo, 2018;Zango, Bakar, Tan, & Bakar, 2018).…”

Section: Othermentioning

confidence: 99%

Emerging pollutants—Part II: Treatment

Liu

Zhang

Chang

2019

Water Environment Research

View full text Add to dashboard Cite

Recently, emerging pollutants (EPs) have been frequently detected in urban wastewater, surface water, drinking water, and other water bodies. EPs mainly usually include pharmaceuticals and personal care products, endocrine-disrupting chemicals, antibiotic resistance genes, persistent organic pollutants, disinfection by-products, and other industrial chemicals. The potential threat of EPs to ecosystems and human health has attracted worldwide attention. Therefore, how to treat EPs in various water bodies has become one of the research priorities. In this paper, some research results on treatment of EPs published in 2018 were summarized.

show abstract

“…Application of adsorption methods with a use of modified clay minerals [11], interlayer modified titanium nanotubes [12] also give a possibility to remove hydroxybenzene from an aqueous medium. However, there is no data on adsorbent regeneration technology in a paper [11], and there is no data on lifetime of these adsorbents and possibility of a use in the industry in work [12].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%