PMID- 36320857
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20221104
IS  - 2046-2069 (Electronic)
IS  - 2046-2069 (Linking)
VI  - 12
IP  - 41
DP  - 2022 Sep 16
TI  - Removal of p-nitrophenol from simulated sewage using MgCo-3D hydrotalcite 
      nanospheres: capability and mechanism.
PG  - 27044-27054
LID - 10.1039/d2ra01883g [doi]
AB  - 4-Nitrophenol (4-NP) is an organic pollutant found in the wastewater discharged 
      from coking and petrochemical industries, and it is highly toxic, persistent, and 
      bioaccumulative. 4-NP is difficult to degrade and causes serious damage to human 
      health and the ecological environment. In this study, MgCo-3D hydrotalcite 
      nanospheres were synthesized via the hot solvent method using ZIF-67 as a 
      template for 4-NP removal from wastewater. The composition and structure of 
      MgCo-3D hydrotalcite nanospheres were characterized via X-ray diffraction (XRD), 
      Scanning electron microscope (SEM), Transmission Electron Microscope (TEM), 
      Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy 
      (XPS), Energy Dispersive Spectroscopy (EDS), and BET analyses. The maximum 
      adsorption capacity was 131.59 mg g(-1) under the optimized conditions (pH = 7, t 
      = 298 K, C (0) = 50 mg L(-1), dose = 0.4 g L(-1)). The adsorption obeyed the 
      Langmuir, Redlich-Peterson and Sips models and pseudo-second-order kinetics, and 
      the adsorption activation energy was 29.4 kJ mol(-1), indicating a monolayer 
      physical adsorption phenomenon. The adsorption of 4-NP on the MgCo-3D 
      hydrotalcite nanospheres mainly involved hydrogen bonding and electrostatic 
      interactions. The nanospheres were regenerated using the hot-air purging method. 
      After five adsorption-desorption cycles, the adsorption capacity reached 107.6 mg 
      g(-1), indicating the good regeneration performance of the MgCo-3D hydrotalcite 
      nanospheres.
CI  - This journal is (c) The Royal Society of Chemistry.
FAU - Gao, Fei
AU  - Gao F
AUID- ORCID: 0000-0002-3822-3598
AD  - East China University of Science and Technology School of Chemical Engineering 
      China jyyang@ecust.edu.cn.
FAU - Xu, Xinru
AU  - Xu X
AD  - East China University of Science and Technology School of Chemical Engineering 
      China jyyang@ecust.edu.cn.
FAU - Yang, Jingyi
AU  - Yang J
AD  - East China University of Science and Technology School of Chemical Engineering 
      China jyyang@ecust.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20220922
PL  - England
TA  - RSC Adv
JT  - RSC advances
JID - 101581657
PMC - PMC9494026
COIS- There are no conflicts to declare.
EDAT- 2022/11/03 06:00
MHDA- 2022/11/03 06:01
PMCR- 2022/09/22
CRDT- 2022/11/02 02:18
PHST- 2022/03/25 00:00 [received]
PHST- 2022/09/12 00:00 [accepted]
PHST- 2022/11/02 02:18 [entrez]
PHST- 2022/11/03 06:00 [pubmed]
PHST- 2022/11/03 06:01 [medline]
PHST- 2022/09/22 00:00 [pmc-release]
AID - d2ra01883g [pii]
AID - 10.1039/d2ra01883g [doi]
PST - epublish
SO  - RSC Adv. 2022 Sep 22;12(41):27044-27054. doi: 10.1039/d2ra01883g. eCollection 
      2022 Sep 16.