Role of quantum dots nanoparticles in the chemical treatment of colored wastewater: Catalysts or additional pollutants

作     者：Hrvoje Kusic Danuta Leszczynska Natalija Koprivanac Igor Peterne 

作者机构：Civil and Environmental Engineering DepartmentJackson State University Faculty of Chemical Engineering and TechnologyUniversity of Zagreb 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2011年第23卷第9期

页      面：1479-1485页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：both the US Army Engineer Research and Development Center,Vicksburg,MS,USA (throughout DOD contracts # W912HZ-06-C-0057 and # W912HZ-06-C-096) Ministry of Science,Education and Sports of Republic of Croatia (Project #125-1253092-1981) for funding this work 

主　　题：wastewater treatment CdSe/ZnS core-shells reactive azo dye UV irradiation ozone 

摘      要：The objective of the study was to investigate the presence and the activity of quantum dots nanoparticles in colored *** special interest is devoted to the investigation of their role in the typical treatment of water or wastewater,studying their influence on the effectiveness of applied treatments *** standard chemical processes for water treatment and disinfection （direct UV photolysis and direct ozonation） were applied for the degradation of colored organic pollutant,reactive azo dye,in the presence/absence of CdSe/ZnS core-shells quantum *** obtained results indicated that investigated nanoparticles inhibit the overall efficiency of applied processes,especially in the case of direct UV photolysis,although catalytic effect might be expected in part due to the semiconductor nature of quantum *** results lead to a conclusion that CdSe/ZnS nanoparticles behave as additional pollutants in the *** should be removed from the system prior the treatment,because their presence could decrease the efficiency,i.e.,prolong the time of treatment and correspondingly increase the costs of the treatment process.