Adsorptive desulfurization of model and real fuel via wire-, rod-, and flower-like Fe3O4@MnO2@activated carbon made from palm kernel shells as newly designed magnetic nanoadsorbents

Ali, Ibrahim Sh.; Al-Janabi, Omer Yasin Thayee; Al‐Tikrity, Emaad T. B.; Foot, P.J.S.

doi:10.1016/j.fuel.2023.127523

Cited by 7 publications

(5 citation statements)

References 81 publications

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“…[ 17 ] The diffraction peaks at 18.0°, 30.0°, 35.4°, 37.2°, 43.0°, 53.5°, 57.0°, and 62.5° were correspond to the (1 1 1), (2 2 0), (3 1 1), (2 2 2), (4 0 0), (4 2 2), (5 1 1), and (4 4 0) planes of fully crystalline magnetite Fe 3 O 4 phase (JCPDS 85–1436). [ 18 ] The six diffraction peaks located at 12.2°, 35.6°, 36.7°, 43.5°, 63.0°, and 66.1° proved that Fe 3 O 4 @fibers were modified with the birnessite‐type MnO 2 (JCPDS 43–1456, δ–MnO 2 ). These peaks can be well indexed to the (0 0 1), (2 0 0), (1 1 –1), (1 1 –2), (3 1 –1), and (0 2 0) planes, respectively.…”

Section: Resultsmentioning

confidence: 99%

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Wang,

Ma,

Cui

et al. 2023

Adv Funct Materials

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Limited transport efficiency of remediation reagents in the subsurface environment is regarded as a key challenge facing in situ soil remediation. Herein, taking advantage of natural hollow fibers, tubular micromotors capable of autonomous movement to facilitate the migration of remediation reagents and achieve efficient degradation of organic pollutants in soil are developed. Widely‐used nanocatalysts in soil treatment, Fe3O4 and MnO2, are integrated on the fiber surface to enable self‐propulsion via recoil of micro/nanobubbles and activation of hydrogen peroxide (H2O2) and peroxymonosulfate. Featured with tiny sizes and wireless motion, the micromotors navigate in microchannels and microenvironments with complex terrain. The dependence of transport efficiency in heterogeneous and porous environments on H2O2 concentration is revealed based on column studies. With fluorescent g‐C3N4 decorated on the surface to enable visualization, the horizontal/vertical migration of prepared micromotors in soil is proved to be greatly enhanced due to self‐propulsion and bubble generation. The micromotors exhibit excellent catalytic performances toward the degradation of a wide spectrum of water‐soluble antibiotics and water‐insoluble polycyclic aromatic hydrocarbons. Overall, the bioinspired micromotors unveil a new strategy to improve the transport of remediation reagents in the subsurface environment, which holds great potential for efficient in situ soil treatment.

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Section: Resultsmentioning

confidence: 99%

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Wang,

Ma,

Cui

et al. 2023

Adv Funct Materials

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“…Therefore, the development of a sustainable and efficient desulphurization technology is still a hot area of scientific research. There are several ways to remove sulfur from liquid fuels, such as hydrodesulfurization (HDS) [9], biodesulfurization (BDS), extraction desulfurization (EDS), oxidative desulfurization (ODS) [10][11][12], and adsorption desulfurization (ADS) [13,14] (see Figure 2). clean fuel production technology has become one of the key research directions in the petrochemical industry.…”

Section: Desulfurization Processmentioning

confidence: 99%

“…During the adsorption process, the plane of organic sulfur can produce π-π stacking adsorption with the conjugated aromatic ring π plane on the surface of the active carbon material. At the same time, the surface pore structure and surface heteroatomic functional groups of carbon also affect the adsorption of organic sulfur [14,48]. It is worth noting that, for unmodified activated carbon, the adsorption desulfurization effect is generally poor.…”

Section: Activated Carbon Materialsmentioning

confidence: 99%

New Adsorption Materials for Deep Desulfurization of Fuel Oil

Qiu,

Wang,

Wang

et al. 2024

Materials

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In recent years, due to the rapid growth of mankind’s demand for energy, harmful gases (SOx) produced by the combustion of sulfur-containing compounds in fuel oil have caused serious problems to the ecological environment and human health. Therefore, in order to solve this hidden danger from the source, countries around the world have created increasingly strict standards for the sulfur content in fuel. Adsorption desulfurization technology has attracted wide attention due to its advantages of energy saving and low operating cost. This paper reviewed the latest research progress on various porous adsorption materials. The future challenges and research directions of adsorption materials to meet the needs of clean fuels are proposed.

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“…Numerous adsorbents have been utilized for sulfur removal from both models and real fuel oils, which are metal oxide, molecular sieve, AC, etc. ; of which AC is convenient to acquire the oils with desirable ultralow sulfur content due to their high surface density of functional groups, extensive pore structure, low cost, and large and tunable specific surface area. , The AC surface area is broadly influenced by the carbonaceous material’s precursors and methods of preparation, the adsorption affinity of both refractory and aromatic compounds of sulfur, and the receptivity for modification.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Activated Carbon Derived from Glycerin Pitch for Desulfurization of Model Fuel Oil and Electrode Application

Zulkefli,

Rahim,

Chua

et al. 2024

Langmuir

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One of the world's challenging energy issues is introducing practical and affordable technology for organosulfur removal in fuel. Adsorptive desulfurization (ADS) can address this issue if highly effective activated carbon (AC) derived from industrial waste with excellent textural properties is used. In this study, the derived ACs from glycerin pitch loaded with P and Fe (AC/P and AC/Fe) were used as adsorbents for the ADS of model fuel oils, such as dibenzothiophene (DBT) at mild operating conditions. Under the optimized experimental conditions, 0.3 g of adsorbent dosage, 60 min reaction time, 30 °C temperature, and pH 4, the maximal DBT removal of 96.28 and 43.64%, respectively, for AC/P and AC/Fe was realized. The results indicated that the phosphorus-doped AC/P increases the selectivity of the ADS mechanism for DBT removal. Kinetic investigations disclosed that the adsorption process follows second-pseudo-order kinetics and the Langmuir adsorption isotherm model. The adsorbents remained active for five successive reuses, indicating their robust real-world applications. The electrochemical properties of the fabricated carbon electrodes were analyzed via cyclic voltammetry by coating the ACs with polytetrafluoroethylene (PTFE) as a binder. The transition-metal-doped AC/Fe, though exhibiting 5 times lower surface area, showed the highest specific capacitance at a scan rate of 5 mVs–1 (0.65 μF cm–2). Similarly, the extended AC:PTFE capacitor at a 10% binder ratio offered the maximum capacitance value (1.13 μF cm–2). The synthesized ACs demonstrated potential application as an electrode material, and hence glycerin pitch could be a low-cost precursor to improve the feasibility of commercial production of AC.

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Adsorptive desulfurization of model and real fuel via wire-, rod-, and flower-like Fe3O4@MnO2@activated carbon made from palm kernel shells as newly designed magnetic nanoadsorbents

Cited by 7 publications

References 81 publications

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

Bioinspired Self‐Propelled Micromotors with Improved Transport Efficiency in the Subsurface Environment for Soil Decontamination

New Adsorption Materials for Deep Desulfurization of Fuel Oil

Fabrication of Activated Carbon Derived from Glycerin Pitch for Desulfurization of Model Fuel Oil and Electrode Application

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