Photo-assisted degradation of bisphenol A by a novel FeS2@SiO2 microspheres activated persulphate process: Synergistic effect, pathway and mechanism
文献类型：期刊论文
| 作者 | Kong, LJ; Diao, ZH; Wei-Qian; Guo, PR; Pu, SY |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 349页码:683-693 |
| 通讯作者 | zenghuid86@scsio.ac.cn |
| 英文摘要 | In this study, FeS2@SiO2 microspheres were firstly employed as a heterogeneous catalyst to activate persulfate (PS) for the degradation of bisphenol A (BPA) from aqueous solutions. The most relevant findings revealed that UV irradiation induced a significant improvement in the degradation of BPA by the FeS2@SiO2 microspheres/PS system. Nearly 100% of BPA degradation by the FeS2@SiO2 microspheres/PS/UV system was achieved within 120 min at reaction conditions of 1 mM PS, 0.066 mM BPA, 1.0 g/L FeS2@SiO2 microspheres and pH 3.0. A high performance on the degradation of BPA might be attributable to a synergistic effect between the PS/UV and the FeS2@SiO2 microspheres/PS catalytic processes. It was found that the BPA degradation could be inhibited by the coexisting anions like Cl-, HCO3- and PO43- to different extents at much higher concentrations, whereas NO3 had a negligible effect. Organic acids such as ethylene diamine tetra-acetic acid (EDTA) and oxalic acid (OA) would lead to an enhancement with a lower dosage, whereas a significantly negative effect was observed at much higher dosages. Radical scavenging tests revealed that the SO4 center dot- radicals prevailed over HO center dot. A total of seven intermediates during the degradation of BPA were identified by GC/MS, and a possible reaction pathway and mechanism of BPA degradation by the FeS2@SiO2 microspheres/PS/UV system was proposed. This study demonstrated a simple water treatment method involving the use of low cost natural iron minerals for organic pollutants removal. |
| 学科主题 | Engineering |
| 关键词[WOS] | Bisphenol A ; FeS2 ; Fenton ; Persulphate ; SiO2 microspheres |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/16913]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 推荐引用方式 GB/T 7714 | Kong, LJ,Diao, ZH,Wei-Qian,et al. Photo-assisted degradation of bisphenol A by a novel FeS2@SiO2 microspheres activated persulphate process: Synergistic effect, pathway and mechanism[J]. CHEMICAL ENGINEERING JOURNAL,2018,349:683-693. |
| APA | Kong, LJ,Diao, ZH,Wei-Qian,Guo, PR,&Pu, SY.(2018).Photo-assisted degradation of bisphenol A by a novel FeS2@SiO2 microspheres activated persulphate process: Synergistic effect, pathway and mechanism.CHEMICAL ENGINEERING JOURNAL,349,683-693. |
| MLA | Kong, LJ,et al."Photo-assisted degradation of bisphenol A by a novel FeS2@SiO2 microspheres activated persulphate process: Synergistic effect, pathway and mechanism".CHEMICAL ENGINEERING JOURNAL 349(2018):683-693. |
入库方式： OAI收割
来源：南海海洋研究所
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