The present study is based on the investigation of performance of C,N-bipyrazole
receptor grafted onto silica surface (SG2P) of adsorption Arsenic (AS) from
aqueous solutions. The effects of operating parameters that include pH, contact
time, concentration of As and dosage of adsorbent on adsorption were
accomplished. The results clearly showed that the removal efficiency of As
was decreased with an increasing of As concentration, pH, and temperature,
while it was continuously increasing with time and adsorbent dose. Moreover,
the removal efficiency of Cr (VI) adsorption was 75% corresponding to
pH; temperature (˚C), initial concentration (ppm) and weight of dose (g)
were 6, 25, and 0.04 respectively at 24 hours. The adsorption capacity of the
synthesized sorbent (SG2P) for arsenic at pH < 7 from pseudo second order in
batch experiments was efficient at 20 minutes. Furthermore, the results obtained
in this study presented that the antimicrobial activity was limited where
the Escherichia coli (ATCC25922) and Staphylococcus aureus (ATCC25932)
were as a reference strains, while, the SG2P was able to inhibit growth only at
high concentration (MIC = 1.5625 mg/ml).

العنوان

scientific research publishing

الناشر

american journal of analytical chemistry

بلد الناشر

الولايات المتحدة الأمريكية

نوع المنشور

إلكتروني فقط

المجلد

10

السنة

2019

الصفحات

38-45