PMID- 35539153
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220512
IS  - 2046-2069 (Electronic)
IS  - 2046-2069 (Linking)
VI  - 8
IP  - 14
DP  - 2018 Feb 14
TI  - Fabrication of a magnetite/diazonium functionalized-reduced graphene oxide hybrid 
      as an easily regenerated adsorbent for efficient removal of chlorophenols from 
      aqueous solution.
PG  - 7351-7360
LID - 10.1039/c8ra00503f [doi]
AB  - A magnetic hybrid nanomaterial, which contains magnetite (Fe(3)O(4)) particles 
      and diazonium functionalized-reduced graphene oxide (DF-RGO), was fabricated via 
      a three-pot reaction. First, the reduced graphene oxide (RGO) was synthesized via 
      a redox reaction. Second, diazonium functionalized-RGO was prepared via a 
      feasible chemical reaction. Third, Fe(3)O(4) particles were loaded onto the 
      surface of DF-RGO by covalent bonding, fabricating the M-DF-RGO hybrid. The 
      fabricated hybrid was characterized by SEM, TEM, AFM, XRD, XPS, FT-IR, TGA, Raman 
      spectroscopy, and magnetometry. The resulting M-DF-RGO hybrid possessed unique 
      magnetic properties and was applied to remove 4-chlorophenol (4-CP) and 
      2,4-dichlorophenol (2,4-DCP) from aqueous solution. The adsorption of 4-CP and 
      2,4-DCP on the M-DF-RGO hybrid was performed under various conditions, with 
      respect to initial chlorophenol concentration, pH, and contact time. The results 
      suggest that the adsorption of 4-CP and 2,4-DCP onto the M-DF-RGO hybrid is 
      strongly dependent on pH and weakly dependent on contact time. In addition, the 
      adsorption isotherm of 4-CP and 2,4-DCP on the M-DF-RGO hybrid fits the 
      Freundlich model well and the adsorption capacities of 4-CP and 2,4-DCP on 
      M-DF-RGO reached 55.09 and 127.33 mg g(-1), respectively, at pH 6 and 25  degrees C. In 
      this situation, intermolecular interactions including pi-pi interactions and 
      hydrogen bonding are operative. The calculated results of density functional 
      theory further demonstrate that 2,4-DCP molecules could be more easily absorbed 
      than 4-CP molecules by the M-DF-RGO hybrid. Moreover, the M-DF-RGO hybrid could 
      be easily separated by a magnetic separation process, and showed good 
      recyclability of more than five cycles.
CI  - This journal is (c) The Royal Society of Chemistry.
FAU - Shen, Xiaoqin
AU  - Shen X
AD  - Shandong Provincial Research Center for Water Pollution Control, School of 
      Environmental Science & Engineering, Shandong University Jinan 250100 PR China 
      yujiang@sdu.edu.cn +86-531-88363358 +86-531-88363358.
FAU - Chen, Xiaolei
AU  - Chen X
AD  - Key Laboratory of Colloid & Interface Science of Education Ministry, Shandong 
      University Jinan 250100 PR China wutao@sdu.edu.cn +86-531-88365437 
      +86-531-88365437.
FAU - Sun, Dejun
AU  - Sun D
AD  - Key Laboratory of Colloid & Interface Science of Education Ministry, Shandong 
      University Jinan 250100 PR China wutao@sdu.edu.cn +86-531-88365437 
      +86-531-88365437.
FAU - Wu, Tao
AU  - Wu T
AD  - Key Laboratory of Colloid & Interface Science of Education Ministry, Shandong 
      University Jinan 250100 PR China wutao@sdu.edu.cn +86-531-88365437 
      +86-531-88365437.
FAU - Li, Yujiang
AU  - Li Y
AUID- ORCID: 0000-0002-4970-9964
AD  - Shandong Provincial Research Center for Water Pollution Control, School of 
      Environmental Science & Engineering, Shandong University Jinan 250100 PR China 
      yujiang@sdu.edu.cn +86-531-88363358 +86-531-88363358.
LA  - eng
PT  - Journal Article
DEP - 20180215
PL  - England
TA  - RSC Adv
JT  - RSC advances
JID - 101581657
PMC - PMC9078394
COIS- There are no conflicts of interest to declare.
EDAT- 2018/02/15 00:00
MHDA- 2018/02/15 00:01
PMCR- 2018/02/15
CRDT- 2022/05/11 03:46
PHST- 2018/01/17 00:00 [received]
PHST- 2018/01/26 00:00 [accepted]
PHST- 2022/05/11 03:46 [entrez]
PHST- 2018/02/15 00:00 [pubmed]
PHST- 2018/02/15 00:01 [medline]
PHST- 2018/02/15 00:00 [pmc-release]
AID - c8ra00503f [pii]
AID - 10.1039/c8ra00503f [doi]
PST - epublish
SO  - RSC Adv. 2018 Feb 15;8(14):7351-7360. doi: 10.1039/c8ra00503f. eCollection 2018 
      Feb 14.