Recently, it is demonstrated that semi-conducting materials, which are capable of mediating photocatalytic oxidation of organic compounds, can be alternatives to conventional methods for the removal of organic pollutants from water. Photocatalytic degradation of organic pollutants by nanostructured semiconductors offers great potentials for the complete elimination of toxic chemicals and environmental pollutions. Scientists are investigating many semiconductors that can utilize visible light to degrade a high number of recalcitrant materials in aqueous system. The monograph therefore focuses...

In recent years, electromagnetic wave in gigahertz range is being increasingly used in wireless communication tools, local area networks, personal digital assistant and other communication equipments. However, many problems have occurred along with it, which are a misoperation of precise electronic equipment and leak of secret information occurred by a leakage of electromagnetic wave. Thus, the electromagnetic compatibility (EMC) and electromagnetic interference (EMI) are becoming a serious problem, and much attention has been paid towards finding suitable microwave absorber to solve this...