CAJ | 학술논문

研究了Fe(Ⅲ).乳酸配合物体系同时对Cr(Ⅵ)的光还原及双酚A(BPA)的光氧化处理,考察了光源、初始pH值、Fe(Ⅲ)、乳酸盐、Cr(Ⅵ)及BPA初始浓度等因素对Cr(Ⅵ)及BPA光处理效率的影响.结果表明:光照条件下,铁-乳酸配合物能有效实现对六价铬及BPA的同时光处理.同一体系中,Cr(Ⅵ)的光还原快于BPA的光氧化,Fe(Ⅲ)初始浓度的增加町同时提高Cr(Ⅵ)的光还原效率和BPA的光氧化效率;Fe(Ⅲ)一乳酸盐配合物光解产生的Fe(Ⅱ)是Cr(Ⅵ)的主要还原剂,其次级光反应中产生的·OH是BPA的氧化剂.
연구료Fe(Ⅲ).유산배합물체계동시대Cr(Ⅵ)적광환원급쌍분A(BPA)적광양화처리,고찰료광원、초시pH치、Fe(Ⅲ)、유산염、Cr(Ⅵ)급BPA초시농도등인소대Cr(Ⅵ)급BPA광처리효솔적영향.결과표명:광조조건하,철-유산배합물능유효실현대륙개락급BPA적동시광처리.동일체계중,Cr(Ⅵ)적광환원쾌우BPA적광양화,Fe(Ⅲ)초시농도적증가정동시제고Cr(Ⅵ)적광환원효솔화BPA적광양화효솔;Fe(Ⅲ)일유산염배합물광해산생적Fe(Ⅱ)시Cr(Ⅵ)적주요환원제,기차급광반응중산생적·OH시BPA적양화제.
Simultaneous photochemical reduction of Cr(Ⅵ)and photochemical oxidation of BPA in aqueous solutions containing Fe(Ⅲ)-lactate complexes were preliminarily investigated,and the effects of different factors such as light source.the initial pH,the initial concentrations of Fe(Ⅲ),lactate,Cr(Ⅵ)and BPAwere discussed in detail.The results indicate that hexavalent chromium and BPA can be efficiently photoprocessed by Fe(Ⅲ)-lactate complexes.The photoreduction of Cr(Ⅵ)is much faster than the photooxidation of BPA in the same svstem.The efficiency of Cr(Ⅵ)photoreduction and BPA photooxidation can be enhanced simultaneously by increasing the initial concentration of Fe(Ⅲ).Fe(Ⅱ)generated by the photolysis of Fe(Ⅲ)-lactate complexes is the main reductant of Cr(Ⅵ).Hydroxyl radical generated from sub-reaction is the main oxi-dant of BPA.