PMID- 33773319 OWN - NLM STAT- MEDLINE DCOM- 20210527 LR - 20210527 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 277 DP - 2021 Aug TI - A novel CNTs-Fe(3)O(4) synthetized via a ball-milling strategy as efficient fenton-like catalyst for degradation of sulfonamides. PG - 130305 LID - S0045-6535(21)00775-X [pii] LID - 10.1016/j.chemosphere.2021.130305 [doi] AB - A novel composite (CNTs-Fe(3)O(4)) was synthesized by a ball-milling strategy and characterized by BET, SEM, FTIR, XRD and VSM. The as-fabricated CNTs-Fe(3)O(4) was used to remove six sulfonamides by a Fenton degradation process, including sulfanilamide (SAM), sulfamerazine (SMR), sulfadimethoxine (SMX), sulfadiazine (SDZ), sulfamethazine (SMT) and sulfametoxydiazine (SMD). The degradation behaviors of six sulfonamides in CNTs-Fe(3)O(4)/H(2)O(2) system and the relationship between molecular structure of sulfonamides and their degradation behaviors were investigated systematically. Batch experimental results showed that the as-fabricated CNTs-Fe(3)O(4) had excellent Fenton catalytic activity for the degradation of sulfonamides due to its unique porous structure and the good combination mode of CNTs with Fe(3)O(4) particles. The first-order kinetic mode could better describe the degradation behaviors of six sulfonamides in CNTs-Fe(3)O(4)/H(2)O(2) system, and the degradation rate constant could be ordered as: SAM < SMT < SDZ < SMR < SMD < SMX. The quantitative relationship between the Mulliken charge of sulfonamides (x) and their degradation rate constant (y) in CNTs-Fe(3)O(4)/H(2)O(2) system could be described as: y = - 28.719x + 15.67 (R(2) = 0.957). Finally, the possible synthesis mechanisms of CNTs-Fe(3)O(4) and the degradation mechanisms of sulfonamides in CNTs-Fe(3)O(4)/H(2)O(2) system was proposed. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Liu, Yunbo AU - Liu Y AD - College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China. FAU - Zhang, Xuemei AU - Zhang X AD - College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China. FAU - Deng, Jinhua AU - Deng J AD - College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China. FAU - Liu, Yong AU - Liu Y AD - College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China; Key Laboratory of Treatment for Special Wastewater of Sichuan Province Higher Education System, Sichuan, Chengdu, 610066, China. Electronic address: liuyong75@sicnu.edu.cn. LA - eng PT - Journal Article DEP - 20210317 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Sulfonamides) RN - 21240MF57M (Sulfanilamide) RN - 48U51W007F (Sulfamethazine) RN - BBX060AN9V (Hydrogen Peroxide) SB - IM MH - Catalysis MH - *Hydrogen Peroxide MH - Sulfamethazine MH - Sulfanilamide MH - *Sulfonamides OTO - NOTNLM OT - Antibiotic OT - Ball-milling OT - Carbon nanotubes OT - Fenton-like oxidation OT - Magnetic Fe(3)O(4) EDAT- 2021/03/28 06:00 MHDA- 2021/05/28 06:00 CRDT- 2021/03/27 20:16 PHST- 2021/01/30 00:00 [received] PHST- 2021/03/11 00:00 [revised] PHST- 2021/03/13 00:00 [accepted] PHST- 2021/03/28 06:00 [pubmed] PHST- 2021/05/28 06:00 [medline] PHST- 2021/03/27 20:16 [entrez] AID - S0045-6535(21)00775-X [pii] AID - 10.1016/j.chemosphere.2021.130305 [doi] PST - ppublish SO - Chemosphere. 2021 Aug;277:130305. doi: 10.1016/j.chemosphere.2021.130305. Epub 2021 Mar 17.