Yazar "Bilgin, Elif" seçeneğine göre listele

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  • Küçük Resim
    Öğe
    Lead removal from industrial waste
    (Hitit University, 2017) Bilgin, Elif; Yüce, Murat; Köse, Kazım; Erol, Kadir; Köse, Dursun Ali
    In this study, the heavy metal removal performance of poly(2-hydroxyethyl methacrylate-N-methacryloyl-(L)-histidine methyl ester), poly(HEMA-MAH) cryogel, a known polymer, in HNO3 was investigated. To determine the heavy metal removal performance of cryogel, wastewater was used as obtained from an inorganic material manufacturer. The characterization studies using scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, elemental analysis, waterswelling tests and surface area analysis were conducted. The effect of HNO3 on the adsorption process, especially for metals, was found very effective even in trace amounts.
  • Küçük Resim
    Öğe
    Nikotinamid içeren polimerler ile atıksulardan ağır metal uzaklaştırılması
    (Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2017) Bilgin, Elif; Erol, Kadir
    Kriyojeller son yıllarda özellikle adsorpsiyon deneyleri için kullanılan sentetik polimerlerdir. Sahip oldukları makro-gözenekler sayesinde sürekli ve kesikli sistemde yapılan adsorpsiyon çalışmalarında adsorban olarak büyük kolaylık sağlamaktadırlar. Bu çalışmada poli(2-Hidroksietilmetakrilat-glisidil metakrilat), poli(HEMA-GMA), kriyojeller sentezlenmiş ve daha sonra nikotinamid (NAA) molekülü yapıya bağlanarak, Çorum ilinde 6 farklı kaynaktan elde edilen atıksu numunesinde ağır metal adsorpsiyon çalışması yapılmıştır. Atıksu numunelerindeki ağır metal miktarı İndüktif Olarak Eşleştirilmiş Plazma - Kütle Spektrometresi (ICPMS) cihazı vasıtasıyla tespit edilmiştir. NAA bağlı poli(HEMA-GMA)-NAA ve poli(HEMA-GMA) kriyojeller ile yapılan adsorpsiyon çalışmalarında farklı ağır metal türleri için genel olarak poli(HEMA-GMA)-NAA kriyojel ile daha yüksek adsorpsiyon kapasitesine ulaşılmıştır. 6 farklı kaynaktan adsorbe edilen toplam ağır metal miktarı poli(HEMA-GMA)-NAA kriyojel için yaklaşık 686 mg, poli(HEMAGMA) kriyojeli için ise yaklaşık 387 mg olmuştur. En fazla ağır metal adsorpsiyonu Kaynak 2’den elde edilmiş olup en fazla adsorbe edilen ağır metal her iki kriyojel türü için de Zn(II) olarak tespit edilmiştir. Kriyojellerin karakterizasyonu için; şişme testi, Fourier Transform İnfrared Spektroskopisi (FT-IR) analizi, Taramalı Elektron Mikroskobu (SEM) analizi, Termal Analiz, Yüzey Alanı Analizi, Elementel Analiz ve Bilgisayarlı Mikrotomografi (?CT) analizi yapılmıştır.
  • [ X ]
    Öğe
    Poly(HEMA-co-AA) microparticles for removal of aluminum: The reason for Alzheimer's
    (Taylor and Francis Inc., 2017) Yüce, Murat; Bilgin, Elif; Köse, Kazım; Erol, Kadir; Köse, Dursun Ali
    Aluminum is one of the most toxic metals causing a variety of neurologic diseases, especially Alzheimer's disease. It is impossible to avoid contact with aluminum because of its existence in food to medications. Therefore, removal of aluminum from the blood or wastewater is urgently important. The cost-effective and easy-to-prepare adsorbents are needed to get efficient aluminum removal. For that purpose, the poly(2-hydroxyethylmethacrylate-co-acrylic acid), poly(HEMA-co-AA), microparticles was synthesized to remove aluminum in a very short interaction time. The achievement of the desired polymeric structure was confirmed via Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and transmission electron microscope (TEM), etc. Additionally, particle features such as swelling ratio, size, and surface area were determined. The microparticles synthesized in this study have been determined with very good adsorption capacity even in small aluminum concentrations.
  • [ X ]
    Öğe
    Use of nicotinamide decorated polymeric cryogels as heavy metal sweeper
    (Springer Verlag, 2018) Bilgin, Elif; Erol, Kadir; Köse, Kazım; Köse, Dursun Ali
    Cryogels are synthetic polymers used in adsorption experiments in recent years. Because of their macropores, they provide an excellent advantage as an adsorbent in continuous and batch adsorption processes. In this study, nicotinamide (NAA) decorated poly(2-hydroxyethyl methacrylate-glycidyl methacrylate), poly(HEMA-GMA), cryogels were synthesized. Heavy metal adsorption was carried out in wastewater obtained from six different sources in Çorum, Turkey. This study has a novelty regarding the application, i.e., it is the first time to use a polymeric adsorbent for the removal of 15 different heavy metal at the same time without any competition (despite the fact that there is a competition between the metals, the only thing is the removal regarding the purpose the study) as a heavy metal sweeper. Inductively coupled plasma-mass spectrometer (ICP-MS) was used for the determination of the initial amount of heavy metal in the wastewater samples. Adsorption studies were performed using poly(HEMA-GMA) and NAA-decorated poly(HEMA-GMA) cryogel to see the effect of NAA decoration. Higher adsorption capacity was achieved using NAA decorated poly(HEMA-GMA) cryogel. The total heavy metal amount adsorbed from six different sources was about 686 and 387 mg for poly(HEMA-GMA)-NAA and poly(HEMA-GMA) cryogels, respectively. The highest heavy metal adsorption value was obtained in the wastewater from source 2, and Zn (II) was the heavy metal adsorbed most for both cryogel. Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermal, surface area, elemental, and computerized microtomography (?CT) analyses were used for the characterization of cryogels.