کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
591588 1453871 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of goethite modified biochar for tylosin removal from aqueous solution
ترجمه فارسی عنوان
استفاده از ژیروسکوپ اصلاح گوتیت برای حذف تیلسین از محلول آبی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی


• Goethite biochar composite (BCF) was simplified created with higher sorption for tylosin (TYL) in aqueous.
• Goethite loaded on biochar played a key role in TYL remove.
• The removal efficiency of BCF was greater than pure BC film.

Recent investigations have shown frequent detection of pharmaceuticals in soils and waters posing potential risks to human and ecological health. Here, we report the enhanced removal of tylosin (TYL) from water by a novel goethite biochar (BCF) composite. Characterization by scanning electron microscopy (SEM) images showed good dispersion of goethite nanoparticles on the biochar surface. The coating was constructed by well-crystallized cubic phase goethite nanoparticles as examined by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis. To evaluate the feasibility of BCF composite as a potential adsorbent for antibiotic removal, batch sorption experiments were conducted using TYL as the model antibiotic molecule. The results showed that this adsorbent showed rapid and high sorption of TYL. According to the Henry and Freundlich model, the maximum capacities of TYL on BCF were 8132.89 L/kg and 5386.76 (μg/g)/(mg/L)n respectively. Besides, the sorption capacity of TYL on BCF was obviously affected by pH and ionic strength. The sorption mechanisms of TYL on BCF were contributed to hydrophobic, electrostatic, H-bonding, cation exchange and π-π EDA interaction. The present work suggests that BCF composite, owing to their simple preparation procedures, high sorption capacity, low cost, and environmentally benign nature, have great potential as the next-generation adsorbent in the removal of antibiotics and other emerging contaminants.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 502, 5 August 2016, Pages 81–88
نویسندگان
, , , , , , ,