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文獻(xiàn)名： Synthesis and characterization of Ag2S decorated chitosan nanocomposites and chitosan nanofibers for removal of lincosamides antibiotic

 

作者：Vinod Kumar Gupta^a, Ali Fakhri^b,c, Shilpi Agarwal^a, Mona Azad^d 

a    Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa

b    Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran

c    Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran

d    Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran

 

摘要：We report the synthesis of Ag2S-Chitosan nanocomposites and Ag2S-chitosan nanohybrids as performance adsorbents for Lincosamides such as Clindamycin antibiotic removal. Isotherms and kinetic studies were determined to understand the adsorption behavior both two adsorbent. At low adsorbent dose, removals are increased in the adsorption process, and performance is better with Ag2S-chitosan nanohybrids due to the special surface area increased. The average sizes and surface area of Ag2S-Chitosan nanocomposites and Ag2S-chitosan nanohybrids were found as 50 nm, 70 nm and 180.18, 238.24 m2 g−1, respectively. In particular, Ag2S-Chitosan nanocomposites and Ag2S-chitosan nanohybrids show high maximum Clindamycin adsorption capacity (qmax) of 153.21, and 181.28 mg g−1, respectively. More strikingly, Ag2S-Chitosan nanocomposites and Ag2S-chitosan nanohybrids are also demonstrated to nearly compley remove Clindamycin from drinking water. The excellent adsorption performance along with their cost effective, convenient synthesis makes this range of adsorbents highly promising for commercial applications in drinking water and wastewater treatment.