Photocatalytic removal of organic pollution such as waste colored dyes was a promising technique for environment technique. However, effective photocatalysts were needed to enhance the photocatalytic efficiency. Ag/AgCl was regarded as high performance catalyst for photocatalytic degradation. Ag/AgCl nanoparticles were biochemically prepared with metabolin of living fungi which was used as reductant and characterized by X-Ray diffraction (XRD), UV-visible spectroscopy and transmission electron microscopy (TEM). The Ag/AgCl nanoparticle composites showed spherical aggregation shape with an average size of about 3–5 nm which is well inside the quantum regime. The UV-visible study showed that Ag/AgCl nanoparticles had strong visible light absorption and exhibited excellent visible-light-driven photocatalytic performance. Photocatalytic results indicated that the obtained Ag/AgCl nanoparticles were suitable for photocatalytic removal of RhB dye under visible light irradiation. The excellent photocatalytic activities could be attributed to the quantum size nanoparticles and the Plasmon resonance of Ag/AgCl composites.

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A new candidate for photocatalytic degradating organic dyes, CdS carried by carbon nanotubes (CdS/CNTs), is reported. The degradation ratio curves of methyl orange in water phase show that the capability for degradating organic molecules of CdS/CNTs is obviously higher than that of separated CdS. The degradation capability enhances as the increase of the amount of net CdS catalyst, the ratio of carbon nanotubes to CdS，and the area of the template, and is influenced by the pH value and the temperature of aqueous solution. These results suggest that the photocatalyst of CdS/CNTs is very suitable for potential applications in organic waste removal from water. carbon nanotube, cadmium sulfide, methyl orange, photocatalysis Waste waters generated by the textile industries are known to contain considerable amounts of non-fixed dyes, some of which are highly carcinogenic. The release of those colored waste waters in the ecosystem is a dramatic source of esthetic pollution, of eutrophication and of perturbations in the aquatic life. Technological systems for the removal of organic pollutants such as dyes have been recently developed. Among them, physical methods, such as adsorption [1] , biodegradation [2] , and chemical methods, such as chlorination [3] , are most frequently used. The traditional processes for treatment of these effluents prove to be insufficient to purify the important quantity of waste waters after the different operations of dyeing and washing. Some methods such as combined coagulation, electrochemical oxidation, and active sludge have recently been investigated and proved to be adequate [4] . Other methods such as flocculation, reverse osmosis and adsorption on

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The incorporation of nonliquid crystal chains made the actuation threshold of LCE being obviously decreased, and the LCE material can be effectively actuated by a lower energy intensity of the applied stimulus.

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