Department of Biotechnology, Dr.N.G.P. Arts and Science College, Coimbatore 641048, Tamil Nadu, India.
Advanced Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India.
J Environ Sci (China). 2014 Nov 1;26(11):2362-8. doi: 10.1016/j.jes.2014.09.022. Epub 2014 Sep 29.
Photocatalytic degradation of Bisphenol A (BPA), a representative endocrine disruptor chemical, was carried out under irradiation of sunlight in the presence of CexZn1-xO nanophotocatalyst. Cerium (Ce) ions were successfully incorporated into the bulk lattice of ZnO by simple co-precipitation process. The CexZn1-xO composite nanostructures exhibited higher photocatalytic efficiency than pure ZnO in the degradation of BPA under sunlight irradiation and nearly complete mineralization of BPA was achieved. The degradation rate was strongly dependent on factors such as the size and structure of catalyst, doping material concentration, BPA concentration, catalyst load, irradiation time and pH levels. This work suggested that the CexZn1-xO assisted photocatalytic degradation is a versatile, economic, environmentally benign and efficient method for BPA removal in the aqueous environment.
在 CexZn1-xO 纳米光催化剂的存在下，利用阳光辐照对双酚 A（BPA）进行光催化降解，BPA 是一种具有代表性的内分泌干扰化学物质。通过简单的共沉淀法成功地将铈（Ce）离子掺入 ZnO 的体晶格中。在阳光照射下，CexZn1-xO 复合纳米结构在 BPA 的降解中表现出比纯 ZnO 更高的光催化效率，几乎可以完全矿化 BPA。降解速率强烈依赖于催化剂的尺寸和结构、掺杂材料浓度、BPA 浓度、催化剂负载量、辐照时间和 pH 值等因素。这项工作表明，CexZn1-xO 辅助的光催化降解是一种在水环境中去除 BPA 的通用、经济、环境友好和高效的方法。
