Innovative Valorization of Eps Waste for Oil/Water Separation Using Electrospinning and [Im, Br] Ionic Liquid DOI

O. Bili,

Khadija El kalaaoui, Aicha BOUKHRISS

и другие.

Опубликована: Янв. 1, 2023

The aim of this study is to develop an innovative membrane for separating oil-water mixtures, based on EPS waste collected from food and electronic packaging functionalised by the ionic liquid [Im,Br] . Different percentages IL were added (1%, 3%, 6%, 12%). surface chemistry, morphology, wettability emulsion separation performance developed membranes investigated in detail. fiber diameter decreased considerably after addition (passing 1,09 µm 0,442µm). Surface properties showed a transition hydrophobic super-hydrophobic properties, as demonstrated water contact angles ranging 116° 154° degrees. These results demonstrate successful functionalization recycled EPS-based liquid, leading surfaces that are highly capable repelling water. This research contributes advancement sustainable solutions during oil spill incidents, well recovering waste.

Язык: Английский

Polystyrene Waste Thermochemical Hydrogenation to Ethylbenzene by a N-Bridged Co, Ni Dual-Atom Catalyst DOI
Runze Li, Zedong Zhang, Liang Xiao

и другие.

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(29), С. 16218 - 16227

Опубликована: Июль 12, 2023

Recycling waste plastics requires the degradation of into small molecules. However, various products are widely distributed using traditional methods depolymerizing polystyrene (PS) such as catalytic pyrolysis and hydrogenolysis. Here, we creatively report a N-bridged Co, Ni dual-atom (Co-N-Ni) catalyst for targeted conversion PS to ethylbenzene via pressurized tandem fixed-bed reactor where hydropyrolysis is coupled with downstream vapor-phase hydrotreatment. The Co-N-Ni achieves 95 wt % 92 yield, significantly superior corresponding single-atom catalysts, enables real plastics. Theoretical calculations experimental results demonstrate that d-band center metal atoms well regulated in catalyst. Co site activates C═C bond more easily, while spatially optimizes adsorption configuration styrene molecule due electronic interaction. This also shows excellent durability provides new direction plastic degradation.

Язык: Английский

Процитировано

85

Photocatalytic Upgrading of Plastic Waste into High-Value-Added Chemicals and Fuels: Advances and Perspectives DOI
Rui Wei, Yawen Shi, Shengbo Zhang

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Язык: Английский

Процитировано

5

Pyrolysis of polystyrene using low-cost natural catalysts: Production and characterisation of styrene-rich pyro-oils DOI Creative Commons

David Royuela,

Juan Daniel Martínez, M.S. Callén

и другие.

Journal of Analytical and Applied Pyrolysis, Год журнала: 2024, Номер 182, С. 106690 - 106690

Опубликована: Авг. 6, 2024

This work aims to study the catalytic pyrolysis of polystyrene (PS) in order obtain a styrene-rich liquid appealing for re-polymerisation processes. The process was performed fixed-bed reactor using low-cost materials such as ilmenite, olivine, calcium oxide (CaO) and dolomite catalysts at 600 ºC. A non-catalytic test with sand also conducted comparison purposes. resulting pyro-oil yield between 89 96 wt%, consisted mainly styrene monomer, dimer trimer, well other light aromatic compounds depending on catalyst used. Olivine CaO were capable increase monomer concentration by about 10–12 % compared pyrolysis, reaching up 74.5 71.4 respectively. Furthermore, these reduced trimer pyro-oil, which could be useful further However, presence polyaromatics (PAHs) pyro-oils obtained from olivine identified, families mono-aromatics, di-aromatics, BTX, nitrogen heterocyclic increased all those pyrolysis. In addition, several inorganic species addition catalysts. effect observed after CaO, especially reduction S, Mg, Ca Fe. These results clearly demonstrate potential convert PS waste into valuable building blocks production new plastics.

Язык: Английский

Процитировано

5

Robust downstream technologies in polystyrene waste pyrolysis: Design and prospective life-cycle assessment of pyrolysis oil reintegration pathways DOI Creative Commons
Meike Holtkamp,

Manfred Renner,

Konstantin Matthiesen

и другие.

Resources Conservation and Recycling, Год журнала: 2024, Номер 205, С. 107558 - 107558

Опубликована: Март 15, 2024

Chemical recycling of polystyrene waste to virgin styrene by fluidized bed pyrolysis and purification oil in a distillation sequence is investigated. It shown experimentally that pre-treatment expanded (EPS) hot washing does not improve yields thus content the oil, suggesting no elaborate necessary for chemical recycling. Based on experimental results, oils with from 30 wt.-% 80 are considered an Aspen Plus® downstream simulation. Process robustness evaluated terms operating parameter sensitivity such as reflux distillate-to-feed ratio. highly variable feed compositions trade-offs more columns or higher RR must be made. Prospective LCA reveals preferable incineration waste, although varying degrees depending critical impurities present oil.

Язык: Английский

Процитировано

4

Photoreforming of Microplastics: Challenges and Opportunities for Sustainable Environmental Remediation DOI Creative Commons
Xiandi Zhang, Minki Jun,

Wenhan Zu

и другие.

Small, Год журнала: 2024, Номер 20(46)

Опубликована: Авг. 9, 2024

Abstract Plastics are widely used in daily lives, but unfortunately, their inadequate recycling practices have led to the accumulation of microplastics environment, posing a threat public health. The existing methods for treating energy‐intensive and environmentally damaging. In this context, photoreforming has emerged as sustainable solution address microplastic crisis by simultaneously them into value‐added chemicals. This review presents comprehensive overview application upcycling microplastic. underlying mechanisms reaction discussed, followed exploration recent advancements innovative strategies techniques with particular emphasis on real‐world applications potential large‐scale implementation. Also, critical factors influencing efficiency identified, providing guidance further research optimization.

Язык: Английский

Процитировано

4

Recent advances in dual-atom catalysts for energy catalysis DOI
Qun Li, Ligang Wang, Jiabin Wu

и другие.

Rare Metals, Год журнала: 2024, Номер unknown

Опубликована: Сен. 17, 2024

Язык: Английский

Процитировано

4

Sustainable Conversion of Expanded Polystyrene Waste into Nonwoven Fabric Using the Melt Jet Spinning Process: Characterization and Properties DOI Creative Commons
Ektinai Jansri,

Nanjaporn Roungpaisan,

Sommai Pivsa‐Art

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Янв. 20, 2025

Язык: Английский

Процитировано

0

A comprehensive review on the synthesis, properties, environmental impacts, and chemiluminescence applications of polystyrene (PS) DOI Creative Commons
Ajay Singh, Anjali Chauhan,

Rahul Gaur

и другие.

Discover Chemistry., Год журнала: 2025, Номер 2(1)

Опубликована: Март 20, 2025

Язык: Английский

Процитировано

0

Novel and Accessible Physical Recycling for Expanded Polystyrene Waste with the Use of Acetone as a Solvent and Additive Manufacturing (Direct Ink-Write 3D Printing) DOI Open Access
Rubén García-Sobrino, Alejandro Cortés, Rocío Calderón‐Villajos

и другие.

Polymers, Год журнала: 2023, Номер 15(19), С. 3888 - 3888

Опубликована: Сен. 26, 2023

The current high production of plastics has prompted the exploration alternative pathways to facilitate recycling, aiming for a progressively sustainable society. This paper presents an and affordable technology treating waste expanded polystyrene (EPS) mixed with acetone in 100:1 volume ratio be used as 3D printing ink Direct Ink Write technology. In order optimize parameters, comprehensive study was conducted, evaluating different needle diameters, speeds, bed temperature values achieve homogenous pieces highly repeatable process. Results showed that main optimum parameters were using needles diameters 14 16 G speeds ranging from 2 12 mm/s, which found yield most uniform ribbons. Increasing temperature, despite favoring evaporation, led generation more heterogeneous structures due void growth inside printed Thus, employing room proved optimal value. Lastly, comparative between starting material EPS after process conducted FTIR-ATR GPC analyses, ensuring preservation original polymer's integrity during physical recycling.

Язык: Английский

Процитировано

2

Innovative Valorization of Eps Waste for Oil/Water Separation Using Electrospinning and [Im, Br] Ionic Liquid DOI

O. Bili,

Khadija El kalaaoui, Aicha BOUKHRISS

и другие.

Опубликована: Янв. 1, 2023

The aim of this study is to develop an innovative membrane for separating oil-water mixtures, based on EPS waste collected from food and electronic packaging functionalised by the ionic liquid [Im,Br] . Different percentages IL were added (1%, 3%, 6%, 12%). surface chemistry, morphology, wettability emulsion separation performance developed membranes investigated in detail. fiber diameter decreased considerably after addition (passing 1,09 µm 0,442µm). Surface properties showed a transition hydrophobic super-hydrophobic properties, as demonstrated water contact angles ranging 116° 154° degrees. These results demonstrate successful functionalization recycled EPS-based liquid, leading surfaces that are highly capable repelling water. This research contributes advancement sustainable solutions during oil spill incidents, well recovering waste.

Язык: Английский

Процитировано

0