High-efficiency adsorption of tetracycline by cooperation of carbon and iron in a magnetic Fe/porous carbon hybrid with effective Fenton regeneration

被引：81

作者：

Gu, Wenyi ^{[1
]}

Huang, Xiaoyue ^{[2
,3
]}

Tian, Yunhao ^{[1
]}

Cao, Min ^{[1
]}

Zhou, Liang ^{[1
]}

Zhou, Yi ^{[1
]}

Lu, Jian ^{[1
]}

Lei, Juying ^{[1
,4
,5
]}

Zhou, Yanbo ^{[1
,4
,5
]}

Wang, Lingzhi ^{[2
,3
]}

Liu, Yongdi ^{[1
,4
,5
]}

Zhang, Jinlong ^{[2
,3
]}

机构：

[1] East China Univ Sci & Technol, Sch Resources & Environm Engn, Natl Engn Lab Ind Wastewater Treatment, Shanghai, Peoples R China

[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China

[3] East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Joint Int Res Lab Precis Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

[4] East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China

[5] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2021年 / 538卷

基金：

中国国家自然科学基金;

关键词：

Hybrid; Adsorption; Antibiotic pollutant; Regeneration; Magnetism;

D O I：

10.1016/j.apsusc.2020.147813

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Highly efficient removal of tetracycline (TC) has been achieved by cooperative adsorption of carbon and iron in a magnetic Fe/porous carbon hybrid (MagFePC) derived from MIL-101(Fe). The optimum hybrid material MagFePC-700 (obtained from MIL-101(Fe) carbonization at 700 degrees C had a good adsorption capacity for TC at a wide range of pH, and the highest adsorption capacity was up to 1301.24 mg g-1 at a pH of around 7, which was 6 times higher than that of activated carbon. In addition to TC, it also showed high adsorption capacity (> 800 mg g(-1)) for oxytetracycline, chlortetracycline hydrochloride, and tetracycline hydrochloride. The porous carbon in MagFePC-700 was rich in mesoand micropores, which were conducive to the transport and enrichment of TC molecules. Especially, the Fe nanoparticles in the hybrid were found to contribute greatly to the adsorption, which were both the active site of adsorption and the active site of Fenton reaction. A multi-cycle experiment revealed that the MagFePC material was regenerated well through Fenton reaction, and the regeneration conditions were mild without adjusting the pH. Taken it all together, MagFePC-700 is a green and recyclable adsorbent for the removal of antibiotics from water owing to its high adsorption capacity, easy separation, and good reuse performance.

引用

页数：12

共 75 条

[1] Ultrafast catalytic reduction of environmental pollutants in water via MOF-derived magnetic Ni and Cu nanoparticles encapsulated in porous carbon [J].