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RISS 인기검색어
- 검색키워드
- 저자 : Ijaz Ahmad Bhatti (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Hafiz Badaruddin Ahmad,Gul E Yasmin,Shafique Ahmad Arain,Ijaz Ahmad Bhatti,Mazhar Hussain 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.4
Arsenic contamination in drinking water is alarming for human beings; especially for those people whouse ground water directly for drinking purposes. Attempts were made to design adsorbents for the removal of arsenic. Silica gel has been tested as adsorbent for such removal. After optimizing concentration, time and amount of adsorbent,Langmuir, Freundlich and D-R isotherms are drawn to determine different parameters for the evaluation of arsenicadsorption. Kinetics of adsorption is also calculated by using pseudo first order and pseudo second order rate equations. Zerovalent iron and manganese nanoparticles have been coated on silica gel and efficiency of removal of arsenichave been determined. Iron and manganese particles have been stabilized with polyvinyl alcohol (PVA). Similarly mixturesof iron-silver and manganese-silver nanoparticles have been synthesized by stabilizing with PVA, which show betterefficiency than individual nanoparticles of iron and manganese coated silica gel. The newly synthesized adsorbentsare very much effective for not only arsenic but also for antimicrobial activity. Concentration of arsenic in water hasbeen determined spectrophotometrically using variamine blue as indicator.
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Shazia Muzaffar,Ijaz Ahmad Bhatti,Mohammad Zuber,Haq Nawaz Bhatti,Muhammad Shahid 한국섬유공학회 2018 Fibers and polymers Vol.19 No.3
As the use of high performance textiles has grown, the need for chemical finishes to provide the fabric properties required in the special applications has grown accordingly. In this project, a series of water dispersible polyurethanes dispersion (CS-PUs) with multipurpose performance profile was developed using isophorone diisocyanate (IPDI), polyethylene glycol (PEG), 2,2-dimethylol propionic acid (DMPA) and chitosan (CS) for textile applications. In two step synthesis process, NCO functional PU prepolymers prepared by reacting IPDI, PEG, and DMPA were extended with varying molar quantities of chitosan followed by structural characterization through FTIR. The prepared CS-PU dispersions were applied onto the dyed and printed poly-cotton blend fabrics. The performance behavior of the treated fabric in terms of crease recovery, tear strength, tensile strength, and antibacterial properties was evaluated by applying standard test methods. These investigations show that the CS-PU dispersions can be applied as antibacterial textile finishes with significant improvement in the physical and mechanical properties of poly-cotton fabrics.
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Recent developments for antimicrobial applications of graphene-based polymeric composites: A review
Nabira Fatima,Umair Yaqub Qazi,Asim Mansha,Ijaz Ahmad Bhatti,Rahat Javaid,Qamar Abbas,Nimra Nadeem,Zulfiqar Ahmad Rehan,Saima Noreen,Muhammad Zahid 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.100 No.-
Owing to its captivating properties, Graphene-based materials (GMBs) have appeared as a broad-spectrumantimicrobial material and attracting scientists and researchers’ attention. By focusing on the recentadvances in the polymeric nanocomposite’sfield, current study is positioned on the graphene-basedpolymeric composites having antibiofilm and antimicrobial activities to confront the current situations ofmicrobial resistance against antibiotics and other drugs. Furthermore, this review summarizesthe influenceof different factors on the antimicrobial activities of graphene-based polymeric composites like size, shape,number of layers, concentration, dispersibility, and functionalization, and also shed the light on the possiblemode of actions of these materials. Graphene-based polymeric composites exert its antimicrobial action byphysical damages (e.g., direct sharp edges’ contact to cell membranes of bacteria, wrapping of the bacterialcell, phospholipid extraction, and photo-thermal ablation) and chemical damages (e.g. oxidative-stress andcharge transfer). Besides, this review article thoroughly describes the antimicrobial applications ofgraphene-based polymeric composites, which are because of their good biocompatibility and superiorantimicrobial properties such as wound bandages and dressings, antimicrobial coatings, drug delivery, foodpackaging, hydrogel formation, and water disinfection. Present review may stimulate major concerns, spurfurther developments, and provide valuable insight into the promisingfields.
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