Mitigation of di-(2-ethylhexyl) phthalate contamination exposure over supramolecular organic heterojunction
文献类型： 外文期刊
第一作者： Wei, Hailian
作者： Wei, Hailian;Cheng, Ling;Yang, Xianglong;Zhang, Qi;Mao, Jin;Li, Peiwu;Cheng, Ling;Yang, Xianglong;Zhang, Qi;Mao, Jin;Li, Peiwu
作者机构：
关键词： DEHP; Perylene diimide; Supramolecular organic heterojunction; Selective adsorption; Photocatalytic degradation
期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.2； 五年影响因子：7.6 ）
ISSN： 2213-2929
年卷期： 2024 年 12 卷 6 期
页码：
收录情况： SCI
摘要：
Di-(2-ethylhexyl) phthalate (DEHP) with endocrine disrupting toxicity has been widely concerned owing to its widespread presence in environment and food. As an essential part of the daily diet, edible oil has become an emerging and nonnegligible source of DEHP intake exposure. Herein, we demonstrated a two-step method to mitigate DEHP exposure from edible oil including firstly selective adsorption and then photocatalytic degradation by supramolecular organic nanomaterial composites. Perylene diimide (PDI) heterojunction with Bi2WO6 was synthesized by a facile ultrasonic-water bath heating method. It was found that PDI/Bi2WO6 showed selective adsorption of DEHP in edible oil via it-it stacking, hydrophobic interactions, and monolayer chemisorption compared with other phthalates. Adsorption kinetics and isotherm simulation results showed that the adsorption process conformed to the second-order kinetics and Langmuir model. Then, under visible light irradiation, PDI/ Bi2WO6 with 35 % m(PDI)/m(Bi2WO6) had the highest degradation rate of DEHP, which was 2.16 and 1.76 times higher than that of PDI and Bi2WO6, respectively. The reactive species generated under visible light irradiation, superoxide radicals (center dot O2
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