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Parveen Akhter,Iqrash Shafiq,Faisal Ali,Faiza Hassan,Roeya Rehman,Nasir Shezad,Ashfaq Ahmed,Farrukh Jamil,Murid Hussain,Young-Kwon Park 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-
Textile effluents may harm the human body as well as cause environmental pollution. For several decadesresearchers have been attempting to overcome this issue by introducing environmentally friendly technologiesthat degrade bulk dyes to mitigate hazards. Synthetic dyes are carcinogenic for humans as wellas for other living organisms. Various techniques have been developed for the removal of these toxiccompounds, advanced oxidation processes (AOPs) being the most used processes. In this study,Montmorillonite (MMT) supported BiVO4 nanocomposite was prepared by the sol–gel method to degradeBrilliant Red 80 dye using photocatalysis. The BiVO4/MMT composite was comprehensively characterizedby several characterization techniques including X-ray diffraction (XRD), Fourier-transform infraredspectroscopy (FTIR), Scanning electron microscopy (SEM), Raman, Photoluminescence spectroscopy(PL), and UV–Vis diffuse reflectance spectroscopy (UV–Vis-DRS). Interestingly, the composite materialshowed a narrow bandgap of 2.26 eV with strong light absorption in the visible range. A 1000-wattXenon Lamp was used for activity performance measurement. The photocatalytic Brilliant Red 80 degradationactivity was observed to be 99% degraded within 120 min of illumination compared to conventionalBiVO4 which showed around 80% degradation. Moreover, in this work, an acidic media wasfound to favor the degradation of Brilliant Red 80 dye.
Akhter Parveen,Bhatti Taseer Yasrab,Shafiq Iqrash,Jamil Farrukh,Nazar Rabia,Nazir Muhammad Shahid,Hassan Sadaf Ul,Hussain Murid,박영권 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.12
Sea buckthorn (SBT) combines very fascinating nutritional composition with vital vitamins (A, C, E, D, K, and B complexes). Flavonoids, sterols, α-carotene, linoleic acid, and many more unsaturated fatty acids are present in the sea buckthorn plant. The organic extract of SBT seeds is commonly utilized as an anti-aging ingredient in numerous cosmetics. SBT oil extracts are used in pharmaceuticals that treat diseases like diabetes, cancer, cardiovascular disease, and neurological disorders, in addition to cosmetology. In this investigation, various concentrations of organic solvents such as n-hexane, isopropyl alcohol, ethyl acetate, ethanol, methanol, and ascorbic acid (standard) were used for the extraction of oil from sea buckthorn seeds. The antioxidant activity of such extracts was checked by the iron chelating, commonly known as the ferric chloride (FeCl3) method, which is based on the ferric reducing ability of plasma (FRAP) assay with the help of UV-Vis. Our results indicate that seed extract of Hippophae rhamnoides, should be considered as a non-toxic source and the ferric reducing ability of plasma (FRAP) assay is used to evaluate the anti-oxidant potential by various organic solvents. The highest (68%) of FRAP is scavenged by the ethyl acetate and least (53%) of isopropyl extracts.
Aisha Abdullah,Ashfaq Ahmed,Parveen Akhter,Abdul Razzaq,Muhammad Zafar,Murid Hussain,Nasir Shahzad,Khaliq Majeed,Shahzad Khurrum,Muhammad Saifullah Abu Bakar,박영권 한국화학공학회 2020 Korean Journal of Chemical Engineering Vol.37 No.11
We evaluated the thermochemical properties and suitability of a variety of lignocellulosic biomass residues in Pakistan for energy production. Proximate, ultimate and calorific value analyses were performed to know the energy perspective, whereas thermogravimetric analysis was used to study the decomposition behavior of biomass samples under pyrolysis conditions. The moisture content, volatile matter, fixed carbon and ash content in the biomass samples were found within the range of 4.38-5.69%, 63.25-80.53%, 7.97-23.13%, and 7.12-14.35%, respectively. The range of carbon, hydrogen, and oxygen content was reported as 35.83-47.23%, 5.2-6.56%, and 45.6-58.55%, respectively. Lower values of sulfur and nitrogen content amongst the samples indicated that the biomass was environmentally friendly in terms of energy production. The heating value of the biomass was reported in the range of 15.20-18.44 MJ/kg. Fourier transform infrared spectroscopy showed the existence of hydroxyl, aldehydes, ketones, aromatic compounds, carbonyl compounds, ether, and halogen groups. Orange leaf biomass indicated a greater potential in producing bio-oil, whereas the horticulture biomass and mango leaves may have greater potential for biochar
Wastewater from the textile industry: Review of the technologies for wastewater treatment and reuse
Ahsan Ali,Jamil Farrukh,Rashad Moeen Ali,Hussain Murid,Inayat Abrar,Akhter Parveen,Al-Muhtaseb Ala’a H.,Lin Kun-Yi Andrew,박영권 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.9
The textile industry is water intensive and discharges numerous coloring compounds into the water body that depend on the industry’s geographical location, the wet processes used for manufacturing, processing conditions, and the substrates involved. Textile wastewater contains chlorobenzenes, phthalates, heavy metals, azo dyes, and chlorophenols that have severe health issues, such as being allergenic, cytotoxic, genotoxic, mutagenic, and carcinogenic threats to living organisms. The differing concentrations of sulfates, chlorides, TOC, TDS, TSS, BOD, COD, high pH, and dye content characterize textile wastewater. To protect the environment and public health, a higher concentration of these items in textile wastewater is needed to treat the textile wastewater effluent before discharge. The conventional treatment methods are not able to fully remove the pollutants, such as physical treatments can only remove grease, oil, and TSS, whereas biological wastewater treatment (aerobic and anaerobic) can only decrease colors, COD, BOD, oil, and phenol with a higher accomplishment period and by-products. Therefore, it is necessary to develop effective ecofriendly, cost-effective, novel techniques, such as membrane technology, and a promising method with fewer by-products. The activated carbon method effectively removes heavy metals and dyes from the textile wastewater, and advanced oxidation processes (AOPs) are a recent development in textile wastewater treatment processes. Combining AOPs methods has been proven effective in removing pollutants when combined with biological and advanced physical processes. This paper reviews the textile manufacturing process, textile wastewater characteristics, textile wastewater’s impact on the environment and health, and the available textile wastewater treatment approach.
Unearthing the potential sustainability of cellulose and exploring its source, fate, and recovery
Sarah Mushtaq,Farrukh Jamil,Murid Hussain,Abrar Inayat,Parveen Akhter,Khaliq Majeed,Muhammad Shahzad Khurram,Muhammad Aslam,Jechan Lee,Young-Kwon Park 대한환경공학회 2023 Environmental Engineering Research Vol.28 No.6
Maira Shabir,Nasir Shezad,Iqrash Shafiq,Ibrahim M. Maafa,Parveen Akhter,Kshaf Azam,Ashfaq Ahmed,See Hoon Lee,Young-Kwon Park,Murid Hussain 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.105 No.-
A visible-light active N,S-codoped TiO2 incorporated with carbon nanotubes (CNTs) was synthesized by amulticomponent heterojunction scheme. The synthesized photocatalysts was examined by several analysistechniques. The conventional TiO2, N-doped TiO2, TiO2/CNT and N,S-codoped TiO2 were also synthesized,characterized, and integrated adsorptive-photocatalytic degradation rates were subsequentlycompared and assessed, for comparative purposes as reference photocatalysts. The parametric studywas also carried out to investigate the effect of various operational factors, such as solution pH, the photocatalystloading and initial concentration of dye solution, on the adsorptive-photocatalytic performance. The best activity performance was attained with the N,S-TiO2/CNTs nanocomposite due to thesynergistic effect of ternary components caused by the incorporation of dopants and CNTs in TiO2 lattice,providing a high number of adsorption sites and facilitating the effective separation of photogeneratedcharge carriers and minimal recombination rates. N,S-TiO2/CNTs exhibited around three times higherphotocatalytic performance than that of the binary composites, i.e., N-TiO2, TiO2/CNTs, N,S-TiO2, andabout four times higher than the conventional TiO2. Furthermore, the superior nanocomposites were alsoinvestigated for their recyclability for five consecutive cycles.
Oxidative desulfurization of refinery diesel pool fractions using LaVO4 photocatalyst
Iqrash Shafiq,Murid Hussain,Sumeer Shafique,Ruhma Rashid,Parveen Akhter,Ashfaq Ahmed,전종기,박영권 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.98 No.-
Oxidative desulfurization (ODS) is a swiftly rising organosulfur compounds eradicating system, effectiveenough at a mild temperature and pressure, overwhelming the necessity of costly hydrogen in thetraditional HDS systems. In this study, pure LaVO4 photocatalyst was prepared using the hydrothermalapproach and employed for deep oxidative desulfurization application in the aerobic environment undervisible-light irradiations. The as-prepared photocatalyst semiconductor material was characterized byFTIR, SEM, UV–vis DRS and Raman analyses. The examined photocatalyst presented a narrow bandgap, asmall particle size, high photo-responsive monoclinic phase, high light photons capturability, plenteousactive sites accessibility and reduced recombination of photogenerated charge carriers, ensuing a goodvisible-light-driven deep oxidative desulfurization ability. The photocatalytic material was tested for itsperformance over different petroleum refinery diesel pool fraction streams including hydrodesulfuriza-tion unit diesel rundown, mild hydrocracking unit rundown gas oil, heavy kerosene oil and the ultimatediesel oil blend, containing organosulfur compounds ranging from disulfides to the stringentorganosulfur compounds, with the quantity lying between 57 and 863 ppm. The kinetic study wasfound in agreement with the pseudo-first-order kinetics. The conceivable desulfurization mechanismwas also anticipated. Moreover, the recyclability of the photocatalytic material was also discussed.
A review on recent advances in the treatment of dye-polluted wastewater
Maira Shabir,Muhammad Yasin,Murid Hussain,Iqrash Shafiq,Parveen Akhter,Abdul-Sattar Nizami,전병훈,Young-Kwon Park 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.112 No.-
The textile effluent has an unfavorable effect on the waterbodies as well as on the human health due tothe poor penetration of light by increased turbidity and higher oxygen demands. Therefore, the treatmentof dye-polluted wastewater is gaining an urgent attention. This review emphasizes on the sate-of-the-arttechnologies that have been developed for treating dye-polluted wastewater, including chemical, physical,and biological techniques alongside their benefits, challenges, and upcoming prospects. The studyconcludes that the single process alone may not be appropriate for the treatment of a range of dyepollutedwastewaters and approaching the quality demands as these technologies requires more timeand are complex. Literature exhibiting a range of approaches for treating large volumes of effluents withoutproducing secondary pollutants are reviewed. Moreover, the ecological impact was among the mainconcern due to the loss of catalysts and the production of waste sludge. On the other hand, reusability andregeneration are the integrated strategies to deal with such limitations. This review also provides adetailed environmental and techno-economic analysis, life cycle assessment, and practical implications. Moreover, the key bottlenecks requiring a major consideration concerning the universal appreciation ofhybrid frameworks are emphasized.
Riaz Iqra,Qamar Obaid Ali,Jamil Farrukh,Hussain Murid,Inayat Abrar,Rocha-Meneses Lisandra,Akhter Parveen,Musaddiq Sara,Karim Muhammad Ramzan Abdul,박영권 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.11
The use of biodiesel is a proactive measure that can be implemented to reduce emissions of greenhouse gases and other adverse environmental impacts. However, one of the major setbacks to biodiesel production is its relatively higher cost compared to petroleum diesel. The optimistic solution to this is valorization of biomasses like waste chicken fat (WCF) and clay for deriving non-edible oil and catalyst respectively. Herein, we report the synthesis of clay derived SiO2 catalyst impregnated with SrO, Bi2O3, CuO and CaO. The developed catalysts were characterized by FTIR, XRD, and SEM. XRD studies confirmed the successful impregnation of active metallic oxide on SiO2 support. Further, these catalysts were employed for biodiesel production from WCF, and SrO/SiO2 was found to be most effective and efficient catalyst for biodiesel production from WCF. Hence, SrO/SiO2 was adapted to optimize the different transesterification reaction parameters such as methanol to oil ratio, catalyst loading, reaction temperature and time. The optimized conditions for maximum biodiesel yield 98.9% were found to be 65 °C in 1 h with 12:1 methanol to oil ratio and 1 wt% catalyst loading. The biodiesel produced was also analyzed by GC-MS. The obtained biodiesel yield shows that clay can be a potential, and cost-effective, catalyst source to produce biodiesel from WCF.