Synthesis of QCS-Glutamate: A New Source to Remove Hg (II) Ions from Wastewater

  • سال انتشار: 1402
  • محل انتشار: Iranian Journal of Chemistry and Chemical Engineering، دوره: 42، شماره: 2
  • کد COI اختصاصی: JR_IJCCE-42-2_006
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 29
دانلود فایل این مقاله

نویسندگان

Çiğdem Şavur

Muğla Sıtkı Koçman University, Faculty of Science, Department of Chemistry, Muğla-۴۸۱۲۱, Muğla, TURKEY

Muhammet Hamdi Karaoğlu

Muğla Sıtkı Koçman University, Faculty of Science, Department of Chemistry, Muğla-۴۸۱۲۱, Muğla, TURKEY

Mehmet Uğurlu

Muğla Sıtkı Koçman University, Faculty of Science, Department of Chemistry, Muğla-۴۸۱۲۱, Muğla, TURKEY

Muhammet Atasoy

Muğla Sıtkı Koçman University, Muğla Vocational School, Chemistry and Chemical Treatment Technologies Department, Chemistry Technology Program, ۴۸۰۰۰ Muğla, TURKEY

Aslan Sema

Muğla Sıtkı Koçman University, Faculty of Science, Department of Chemistry, Muğla-۴۸۱۲۱, Muğla, TURKEY

چکیده

Here we report efficient biomass-based Hg (II) bioadsorbent. Quercus Coccifera Shell (QCS) was recycled and modified with glutamic acid by esterification as QCS-glutamate. After the FT-IR, SEM, and BET characterizations, related optimizations like the amount of adsorbent, initial concentration, temperature, and initial pH were studied to reach optimal adsorption efficiency. Then the adsorption and kinetic studies of the produced QCS-glutamate showed that Hg (II) was successfully adsorbed on QCS-glutamate with high adsorption maxima (qmax) and followed the Lagergren pseudo-second-order reaction and Langmuir adsorption isotherm model (R۲≥۰.۹۹). The maximum adsorption capacities (qmax) of QCS and QCS-glutamate were found as ۳۵.۷۱ and ۷۰.۴۲ mg/g, respectively while standard enthalpy (DHo) standard free energy (DGo) and standard entropy (DSo) were found as ۳۴.۳۱ kJ/mol, ۸۷.۵۸ kJ/mol and -۱۷۸.۷۴ j/mol K respectively. This finding suggests that a novel bioadsorbent QCS-glutamate is a cost-effective and promising bioadsorbent for the removal of Hg (II) ions from wastewater.

کلیدواژه ها

Hg (II), QCS-glutamate, Langmuir isotherm, Remediation, Kinetics

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.