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  1. AU="Shazia Shukrullah"
  2. AU="Chandran, Vijayendran"
  3. AU="Doerler, M"
  4. AU="Nyland, P"
  5. AU="Rana, Jigyasa"
  6. AU="Fennimore, Laura"
  7. AU="Blankstein, Kenneth"
  8. AU="O' Callaghan, Carol"
  9. AU="Van Snick, Jacques"
  10. AU="Yao, Xiaobin"
  11. AU="Georg Häcker"
  12. AU="Jain, S."
  13. AU="Alfakir, Razan"
  14. AU="Sozbilir, U."
  15. AU=Zhang Shuanghong
  16. AU="Iwama, Hisakazu"
  17. AU="Gomes, Andreia"
  18. AU="Machuca, Víctor"
  19. AU=Liu Nanyang AU=Liu Nanyang
  20. AU="Boudina, Sihem"
  21. AU="Ma, DongXue"
  22. AU="Bellucci, Margherita"
  23. AU="Prima, Musharrat Jahan"
  24. AU="Saiegh, Fadi Al"
  25. AU="Yang, Deok-Chun"
  26. AU="Arima, Hisatomi"
  27. AU=Czubak Jacek
  28. AU="de Melo, Bruna Oliveira"
  29. AU="Sokhadze, Guela"
  30. AU="Meuleman, Philip"
  31. AU=Mishra Arnab Kumar AU=Mishra Arnab Kumar
  32. AU="Linda A. Gleaves"
  33. AU="Vandelli, Maria Angela"
  34. AU="Guerrera, Luigi Pio"
  35. AU="Sabitri Lamichhane"
  36. AU="Echevarria, Marco"
  37. AU="Yanmin Li"

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  1. Artikel ; Online: Dual S‑Scheme Heterojunction CdS/TiO2/g‑C3N4 Photocatalyst for Hydrogen Production and Dye Degradation Applications

    Muhammad Shoaib / Muhammad Yasin Naz / Shazia Shukrullah / Muhammad Adnan Munir / Muhammad Irfan / Saifur Rahman / Abdulnoor Ali Jazem Ghanim

    ACS Omega, Vol 8, Iss 45, Pp 43139-

    2023  Band 43150

    Schlagwörter Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2023-11-01T00:00:00Z
    Verlag American Chemical Society
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Statistically Analyzed Heavy Metal Removal Efficiency of Silica-Coated Cu0.50Mg0.50Fe2O4 Magnetic Adsorbent for Wastewater Treatment

    Muhammad Irfan / Anam Arif / Muhammad Adnan Munir / Muhammad Yasin Naz / Shazia Shukrullah / Saifur Rahman / Mohammed Jalalah / Abdulkarem H. M. Almawgani

    ACS Omega, Vol 8, Iss 50, Pp 47623-

    2023  Band 47634

    Schlagwörter Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2023-12-01T00:00:00Z
    Verlag American Chemical Society
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Dielectric Barrier Discharge Plasma Processing and Sr-Doped ZnO/CNT Photocatalyst Decoration of Cotton Fabrics for Self-Cleaning Application

    Mabkhoot Alsaiari / Saba Afzal / Ameer Sultan / Shazia Shukrullah / Muhammad Saleem / Muhammad Yasin Naz / Moustafa A. Rizk / Muhammad Irfan

    ACS Omega, Vol 9, Iss 1, Pp 1977-

    2023  Band 1989

    Schlagwörter Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2023-12-01T00:00:00Z
    Verlag American Chemical Society
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Statistical prediction and sensitivity analysis of kinetic rate constants for efficient thermal valorization of plastic waste into combustible oil and gases

    Muhammad Irfan / Rao Adeel Un Nabi / Hammad Hussain / Muhammad Yasin Naz / Shazia Shukrullah / Hassan Abbas Khawaja / Saifur Rahman / Muhammad Usman Farid

    Heliyon, Vol 9, Iss 5, Pp e16049- (2023)

    2023  

    Abstract: Sensitivity analyses of rate constants for chemical kinetics of the pyrolysis reaction are essential for the efficient valorization of plastic waste into combustible liquids and gases. Finding the role of individual rate constants can provide important ... ...

    Abstract Sensitivity analyses of rate constants for chemical kinetics of the pyrolysis reaction are essential for the efficient valorization of plastic waste into combustible liquids and gases. Finding the role of individual rate constants can provide important information on the process conditions, quality, and quantity of the pyrolysis products. The reaction temperature and time can also be reduced through these analyses. For sensitivity analysis, one possible approach is to estimate the kinetic parameters using MLRM (multiple linear regression model) in SPSS. To date, no research reports on this research gap are documented in the published literature. In this study, MLRM is applied to kinetic rate constants, which slightly differ from experimental data. The experimental and statistically predicted rate constants varied up to 200% from their original values to perform sensitivity analysis using MATLAB software. The product yield was examined after 60 min of thermal pyrolysis at a fixed temperature of 420 °C. The predicted rate constant “k(8)” with a slight difference of 0.02 and 0.04 from the experiment revealed 85% oil yield and 40% light wax after 60 min of operation. The heavy wax was missing from the products under these conditions. This rate constant can be utilized to maximize the commercial-scale extraction of liquids and light waxes from thermal pyrolysis of plastics.
    Schlagwörter Thermal pyrolysis ; Polyethylene ; Sensitivity analysis ; SPSS ; Kinetic rate reactions ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2023-05-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: Production of combustible fuels and carbon nanotubes from plastic wastes using an in-situ catalytic microwave pyrolysis process

    Muhammad Irfan / Rishmail Saleem / Bilal Shoukat / Hammad Hussain / Shazia Shukrullah / Muhammad Yasin Naz / Saifur Rahman / Abdulnour Ali Jazem Ghanim / Grzegorz Nawalany / Tomasz Jakubowski

    Scientific Reports, Vol 13, Iss 1, Pp 1-

    2023  Band 15

    Abstract: Abstract This study performed in-situ microwave pyrolysis of plastic waste into hydrogen, liquid fuel and carbon nanotubes in the presence of Zeolite Socony Mobil ZSM-5 catalyst. In the presented microwave pyrolysis of plastics, activated carbon was used ...

    Abstract Abstract This study performed in-situ microwave pyrolysis of plastic waste into hydrogen, liquid fuel and carbon nanotubes in the presence of Zeolite Socony Mobil ZSM-5 catalyst. In the presented microwave pyrolysis of plastics, activated carbon was used as a heat susceptor. The microwave power of 1 kW was employed to decompose high-density polyethylene (HDPE) and polypropylene (PP) wastes at moderate temperatures of 400–450 °C. The effect of plastic composition, catalyst loading and plastic type on liquid, gas and solid carbon products was quantified. This in-situ CMP reaction resulted in heavy hydrocarbons, hydrogen gas and carbon nanotubes as a solid residue. A relatively better hydrogen yield of 129.6 mmol/g as a green fuel was possible in this process. FTIR and gas chromatography analysis revealed that liquid product consisted of C13+ fraction hydrocarbons, such as alkanes, alkanes, and aromatics. TEM micrographs showed tubular-like structural morphology of the solid residue, which was identified as carbon nanotubes (CNTs) during X-ray diffraction analysis. The outer diameter of CNTs ranged from 30 to 93 nm from HDPE, 25–93 nm from PP and 30–54 nm for HDPE-PP mixure. The presented CMP process took just 2–4 min to completely pyrolyze the plastic feedstock into valuable products, leaving no polymeric residue.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2023-06-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Statistical Optimization of Pyrolysis Process for Thermal Destruction of Plastic Waste Based on Temperature-Dependent Activation Energies and Pre-Exponential Factors

    Ali O. Alqarni / Rao Adeel Un Nabi / Faisal Althobiani / Muhammad Yasin Naz / Shazia Shukrullah / Hassan Abbas Khawaja / Mohammed A. Bou-Rabee / Mohammad E. Gommosani / Hesham Abdushkour / Muhammad Irfan / Mater H. Mahnashi

    Processes, Vol 10, Iss 8, p

    2022  Band 1559

    Abstract: The massive increase in disposable plastic globally can be addressed through effective recovery methods, and one of these methods is pyrolysis. R software may be used to statistically model the composition and yield of pyrolysis products, such as oil, ... ...

    Abstract The massive increase in disposable plastic globally can be addressed through effective recovery methods, and one of these methods is pyrolysis. R software may be used to statistically model the composition and yield of pyrolysis products, such as oil, gas, and waxes to deduce an effective pyrolysis mechanism. To date, no research reports have been documented employing the Arrhenius equation in R software to statistically forecast the kinetic rate constants for the pyrolysis of high-density plastics. We used the Arrhenius equation in R software to assume two series of activation energies (Ea) and pre-exponential factors (A o ) to statistically predict the rate constants at different temperatures to explore their impact on the final pyrolysis products. In line with this, MATLAB (R2020a) was used to predict the pyrolysis products of plastic in the temperature range of 370–410 °C. The value of the rate constant increased with the temperature by expediting the pyrolysis reaction due to the reduced frequency factor. In both assumed series of Ea and A o , a significantly larger quantity of oil (99%) was predicted; however, the number of byproducts increased in the first series analysis compared to the second series analysis. It was revealed that an appropriate combination of Ea, A o , and the predicted rate constants could significantly enhance the efficiency of the pyrolysis process. The major oil recovery in the first assumed series occurred at 390 °C to 400 °C, whereas the second assumed series of Ea and Ao occurred at 380 °C to 390 °C. In the second series at 390 °C to 400 °C, the predicted kinetic rate constants behaved aggressively after 120 min of the pyrolysis process. The second assumed series and anticipated rate constants at 380 °C to 390 °C can be applied commercially to improve oil production while saving energy and heat.
    Schlagwörter thermal pyrolysis ; plastic waste ; kinetic rate constant ; statistical analysis ; R software ; activation energy ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2022-08-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Experimental and Statistical Validation of Data on Mesh-Coupled Annular Distributor Design for Swirling Fluidized Beds

    Shazia Shukrullah / Muhammad Yasin Naz / Abdul Ghaffar / Yasin Khan / Abdulrehman Ali Al-Arainy / Rashed Meer

    Processes, Vol 8, Iss 632, p

    2020  Band 632

    Abstract: In this study, velocimetry and statistical analyses were conducted on a swirling fluidized bed. A bed of spherical particles (4 mm) was fluidized by using an annular distributor covered with mesh. The angles of rectangular blades in the distributor were ... ...

    Abstract In this study, velocimetry and statistical analyses were conducted on a swirling fluidized bed. A bed of spherical particles (4 mm) was fluidized by using an annular distributor covered with mesh. The angles of rectangular blades in the distributor were set at 30°, 45°, 60°, 75° and 90°, and the cell size of the mesh cover was 2.5 × 2.5 mm 2 . The weight was varied from 500 to 1250 g and the effect of each variable on bed velocity response was quantified through velocimetry and statistical analysis. The statistical analysis was conducted using NCSS statistical software. The blade angle, bed weight and superficial velocity for 4 mm particles were statistically optimized at 750 g, 58.26° and 1.45 m/s, respectively. On the experimental side, these parameters have been optimized at 750 g, 60° and 1.41 m/s, respectively. A small difference of 1.74° was noticed in experimental and statistical predictions for the blade angle. The bed weights and superficial velocities were found to be same in both cases. The confidence interval (95%) for bed velocity was proposed in the range of 0.513 to 0.519 m/s. The experimentally optimized bed velocity remained within the proposed range. The well-agreeing results indicate good practical value of distributor design and high precision of the experimental measurements.
    Schlagwörter swirling fluidized bed ; annular distributor ; particle image velocimetry ; NCSS software ; statistical analysis ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2020-05-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel ; Online: Catalytic and Non-Catalytic Treatment of Industrial Wastewater under the Exposure of Non-Thermal Plasma Jet

    Shazia Shukrullah / Warda Bashir / Noor Ul Huda Altaf / Yasin Khan / Abdulrehman Ali Al-Arainy / Toqeer Ahmad Sheikh

    Processes, Vol 8, Iss 667, p

    2020  Band 667

    Abstract: Freshwater is only 2.5% of the total water on the Earth and rest is contaminated or brackish. Various physical and chemical techniques are being used to purify the contaminated water. This study deals with catalytic plasma treatment of contaminated water ...

    Abstract Freshwater is only 2.5% of the total water on the Earth and rest is contaminated or brackish. Various physical and chemical techniques are being used to purify the contaminated water. This study deals with catalytic plasma treatment of contaminated water collected from different sites of Faisalabad-Pakistan. A non-thermal DC plasma jet technique was used to treat the water samples in the presence of TiO 2 catalyst. The plasma-assisted catalytic treatment introduced some oxidative species (O 3 , H 2 O 2 , HO 2 − , OH − ) in the water. These species reacted with pollutants and cause the degradation of harmful contaminants, especially dyes. The degradation of dye sample during plasma treatment was more pronounced as compared to other samples. pH, conductivity and TDS of dye containing sample decreased after catalytic plasma treatment. The degradation of organic pollutants increased due to presence of several oxidants, such as TiO 2 , ferrous ions and hydrogen peroxide. FT-IR analysis revealed the degradation of some functional groups during treatment process and confirmed the effectiveness of the process. The residue of the treated samples was consisted of amines, amides and N-H functional groups. XRD analysis showed the presence of Alite, Ferrite, aluminate, Si, S and some heavy metals in the residue. The effect of plasma treatment on activity of gram-negative Escherichia coli ( E. coli ) bacteria in water was also checked. The bacterial activity was reduced by almost 50% after 2 min of plasma treatment.
    Schlagwörter contaminated water ; non-thermal plasma ; DC plasma jet ; TiO 2 catalyst ; oxidation ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2020-06-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  9. Artikel ; Online: CVD Synthesis, Functionalization and CO 2 Adsorption Attributes of Multiwalled Carbon Nanotubes

    Shazia Shukrullah / Muhammad Yasin Naz / Norani M. Mohamed / Khalid A. Ibrahim / Nasser M. AbdEl-Salam / Abdul Ghaffar

    Processes, Vol 7, Iss 9, p

    2019  Band 634

    Abstract: Carbon dioxide is one of the major greenhouse gases and a leading source of global warming. Several adsorbent materials are being tested for removal of carbon dioxide (CO 2 ) from the atmosphere. The use of multiwalled carbon nanotubes (MWCNTs) as a CO 2 ...

    Abstract Carbon dioxide is one of the major greenhouse gases and a leading source of global warming. Several adsorbent materials are being tested for removal of carbon dioxide (CO 2 ) from the atmosphere. The use of multiwalled carbon nanotubes (MWCNTs) as a CO 2 adsorbent material is a relatively new research avenue. In this study, Fe 2 O 3 /Al 2 O 3 composite catalyst was used to synthesize MWCNTs by cracking ethylene gas molecules in a fluidized bed chemical vapor deposition (CVD) chamber. These nanotubes were treated with H 2 SO 4 /HNO 3 solution and functionalized with 3-aminopropyl-triethoxysilane (APTS). Chemical modification of nanotubes removed the endcaps and introduced some functional groups along the sidewalls at defected sites. The functionalization of nanotubes with amine introduced carboxylic groups on the tube surface. These functional groups significantly enhance the surface wettability, hydrophilicity and CO 2 adsorption capacity of MWCNTs. The CO 2 adsorption capacity of as-grown and amine-functionalized CNTs was computed by generating their breakthrough curves. BELSORP-mini equipment was used to generate CO 2 breakthrough curves. The oxidation and functionalization of MWCNTs revealed significant improvement in their adsorption capacity. The highest CO 2 adsorption of 129 cm 3 /g was achieved with amine-functionalized MWCNTs among all the tested samples.
    Schlagwörter fluidized bed CVD ; MWCNTs ; functionalized CNTs ; CO 2 adsorption capacity ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 290
    Sprache Englisch
    Erscheinungsdatum 2019-09-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Online: PIV and Statistical Analysis of a Swirling Bed Process Carried out Using a Hybrid Model of Axial Blade Distributor

    Shazia Shukrullah / Muhammad A. Javed / Muhammad Y. Naz / Yasin Khan / Majeed A. S. Alkanhal / Hafeez Anwar

    Processes, Vol 7, Iss 10, p

    2019  Band 697

    Abstract: An air distributor is a major component of industrial fluidized beds and its design significantly affects the quality of fluidization. In this study, a hybrid design of an annular distributor was tested for swirling fluidized beds (SFBs). Using this ... ...

    Abstract An air distributor is a major component of industrial fluidized beds and its design significantly affects the quality of fluidization. In this study, a hybrid design of an annular distributor was tested for swirling fluidized beds (SFBs). Using this distributor design, a bed was operated in its uniform swirling regime of operation. A high-speed imaging method was used to capture images of the fluidized bed of particles. These images were processed using a binary cross-correlation technique and analyzed through particle image velocimetry (PIV) software. The velocity vector fields and corresponding velocity magnitudes at different locations in the bed were obtained for different bed weights, blade inclination angles, and superficial air velocities (SAVs). The Response Surface Analysis program was used to predict the bed velocity statistically. The statistical confidence interval for the bed velocity ranged from 0.49485 to 0.49998. The statistical fit and experimental values of the bed velocities were 0.49741 and 0.538 m/s, respectively. Almost identical bed weights and superficial velocities were inferred through experimental and statistical analyses; however, a small difference of 6.4° was noticed in the blade inclination angles.
    Schlagwörter swirling bed ; mesh-coupled annular blade distributor ; response surface analysis ; particle image velocimetry ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2019-10-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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