Rai Randhir, Gummadi Sathyanarayana N, Chand Dillip Kumar
Department of Chemistry and Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, Chennai 600036, India.
ACS Omega. 2019 Dec 17;4(27):22514-22520. doi: 10.1021/acsomega.9b03184. eCollection 2019 Dec 31.
Cuprous oxide and copper have been synthesized via the solvothermal process using basic copper carbonate as the source of copper. Pure CuO or Cu could be afforded by simply varying the solvent while keeping the temperature and time constant. In this study, copper-based materials were coated on jute stick pieces (JSP) in situ. CuO-coated JSP (CuO-JSP) and Cu-coated JSP (Cu-JSP) were characterized by powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM). CuO-JSP and Cu-JSP were found to be active against NCIM 2931 (Gram-negative bacteria) and (Gram-positive bacteria). The antibacterial nature of the material and the buoyant nature of CuO-JSP and Cu-JSP were exploited to develop beaded necklace-like strands that could be floated on potable water to effectively prevent aerial contamination. Leaching of copper from both CuO-JSP and Cu-JSP into water was found to be below the permissible limit for copper in drinking water.
以碱式碳酸铜作为铜源，通过溶剂热法合成了氧化亚铜和铜。在保持温度和时间不变的情况下，只需改变溶剂就可以得到纯的氧化铜或铜。在本研究中，将铜基材料原位包覆在黄麻棒片（JSP）上。采用粉末X射线衍射（PXRD）和扫描电子显微镜（SEM）对氧化铜包覆的黄麻棒片（CuO-JSP）和铜包覆的黄麻棒片（Cu-JSP）进行了表征。发现CuO-JSP和Cu-JSP对NCIM 2931（革兰氏阴性菌）和（革兰氏阳性菌）具有活性。利用材料的抗菌特性以及CuO-JSP和Cu-JSP的漂浮特性，开发出了珠状项链状的条带，这些条带可以漂浮在饮用水上，有效防止空气传播的污染。发现CuO-JSP和Cu-JSP中的铜向水中的浸出量低于饮用水中铜的允许限量。
