Abstract: An integrative approach combines a process of adsorption and ozonation which are used for removing the indigo dye from textile wastewater and the regeneration of adsorbent materials. Metal oxide modified adsorbents are efficient dye adsorbent materials for indigo dye wastewater and are used have been developed for adsorption process and regenerated by ozonation process. Upon the regeneration process, the adsorption capacity has been recovered. The synergistic effect of adsorption and ozonation benefit for the efficient dye removal from wastewater and the adsorbent regeneration achieved in an environmentally friendly and cost effective way.

Abstract: The invention relates to a window for a building structure containing optically transparent and self-cooling coatings on a substrate. The optically transparent and self-cooling coatings has a multi-layered structure including a passive cooling layer, a near-infrared radiation absorption layer and a near-infrared radiation reflecting layer. The optically transparent and self-cooling coatings have a visible light transmittance of more than approximately 70%. In addition, an air temperature under the window under ventilation condition is reduced by at least approximately 2° C., and an air temperature under the window under insulated condition is reduced by at least approximately 8° C.