Wang WN |
------>authors3_c= ------>paper_class1=1 ------>Impact_Factor=0.777 ------>paper_class3=2 ------>paper_class2=1 ------>vol=64 ------>confirm_bywho=None ------>insert_bywho=weinan ------>Jurnal_Rank=79.6 ------>authors4_c= ------>comm_author= ------>patent_EDate=None ------>authors5_c= ------>publish_day=1 ------>paper_class2Letter=None ------>page2=382 ------>medlineContent= ------>unit=000 ------>insert_date=20071008 ------>iam=1 ------>update_date=None ------>author=??? ------>change_event=1 ------>ISSN= ------>authors_c= ------>score=124 ------>journal_name=Angle Orthod ------>paper_name=Effect of phosphoric acid concentration on bond strength. ------>confirm_date=None ------>tch_id=090069 ------>pmid=19303312 ------>page1=377 ------>fullAbstract=U(VI) sorption on goethite was investigated as functions of pH, solid-to-liquid ratio (m/V), ionic strength and U(VI) concentration by a batch experimental method. Effects of phosphate, carbonate and fulvic acid (FA) on U(VI) sorption were examined. It was found that the sorption of U(VI) increases from 0% to 100% over the pH range of 2.5-4.5 and keeps constant in the high pH range. The sorption of U(VI) on goethite is insensitive to ionic strength. Different surface complexes in the framework of double-layer model were examined for fitting the sorption of U(VI) on goethite. A model with two mononuclear inner-sphere surface complexes, identical with triple bond SOUO(2)(+) and identical with triple bond SOUO(2)OH, was found capable of reproducing the pH sorption edges, the sorption isotherms and the sorption data with variable m/V in this study. The proposed model can also interpret the pH sorption edge collected at P(CO2)=10(-3.58) atm without considering any ternary surface complexes of carbonate. Moreover, it was found that the presence of phosphate at relatively high concentration (6 x 10(-4) mol/L) promotes U(VI) sorption. The presence of FA of 20 mg/L has little effect on the sorption of U(VI) on goethite. ------>tmu_sno=None ------>sno=16053 ------>authors2=Yeh CL ------>authors3=Fang BD ------>authors4=Sun KT ------>authors5=Arvystas MG ------>authors6= ------>authors6_c= ------>authors=Wang WN ------>delete_flag=0 ------>SCI_JNo=None ------>authors2_c= ------>publish_area=0 ------>updateTitle=Sorption of U(VI) on goethite: effects of pH, ionic strength, phosphate, carbonate and fulvic acid. ------>language=2 ------>check_flag=None ------>submit_date=None ------>country=None ------>no= ------>patent_SDate=None ------>update_bywho=None ------>publish_year=1994 ------>submit_flag=None ------>publish_month=1 |