PMID- 28807686
OWN - NLM
STAT- MEDLINE
DCOM- 20180709
LR  - 20221207
IS  - 1879-0003 (Electronic)
IS  - 0141-8130 (Linking)
VI  - 106
DP  - 2018 Jan
TI  - Adsorption of Zn(II) ions by chitosan coated diatomaceous earth.
PG  - 602-610
LID - S0141-8130(17)32008-1 [pii]
LID - 10.1016/j.ijbiomac.2017.08.053 [doi]
AB  - In this work, chitosan coated diatomaceous earth (CCDE) beads were synthesized by 
      a drop-wise method and characterized by FTIR, BET, SEM, EDS, and zeta potential 
      for Zn(II) ion removal from aqueous solution in batch and continuous processes. 
      Several parameters have been studied such as solution-pH, initial Zn(II) ion 
      concentration, temperature, flow rate, and contact time to investigate the Zn(II) 
      ion uptake. The maximum adsorption capacity of Zn(II) ion onto CCDE beads was 
      127.4mg/g in batch studies. The adsorption followed Pseudo second order and was 
      well fitted to Langmuir model, indicating monolayer adsorption behavior. The 
      continuous adsorption studies showed decreasing breakthrough and exhausted time 
      with increasing flow rate of solution. The breakthrough points were 220 and 
      115min at flow rate 3 and 6mL/min, respectively. Loaded CCDE beads with Zn(II) 
      ions were successfully regenerated by 0.2M NaOH without damaging the adsorbents 
      and up to 87% recovery in the fourth cycle. Anions in the solution had an 
      insignificant effect on Zn(II) ion uptake by CCDE beads. Overall results 
      suggested that the prepared adsorbents could be employed as a low-cost, 
      sustainable, and excellent alternative material for Zn(II) ion removal from 
      wastewater.
CI  - Copyright (c) 2017 Elsevier B.V. All rights reserved.
FAU - Salih, Suhaib S
AU  - Salih SS
AD  - Department of Chemical Engineering, University of Missouri-Columbia, Columbia, 
      MO, United States; Department of Chemical Engineering, University of Tikrit, 
      Iraq. Electronic address: sss43b@mail.missouri.edu.
FAU - Ghosh, Tushar K
AU  - Ghosh TK
AD  - Department of Nuclear Science & Engineering Institute, University of 
      Missouri-Columbia, 416 S. Sixth Street, E 2434 Lafferre Hall, Columbia, MO 65211, 
      United States.
LA  - eng
PT  - Journal Article
DEP - 20170812
PL  - Netherlands
TA  - Int J Biol Macromol
JT  - International journal of biological macromolecules
JID - 7909578
RN  - 0 (Cations, Divalent)
RN  - 0 (Waste Water)
RN  - 0 (Water Pollutants, Chemical)
RN  - 00BH33GNGH (Cadmium)
RN  - 55X04QC32I (Sodium Hydroxide)
RN  - 61790-53-2 (Diatomaceous Earth)
RN  - 789U1901C5 (Copper)
RN  - 9012-76-4 (Chitosan)
RN  - J41CSQ7QDS (Zinc)
SB  - IM
MH  - Adsorption
MH  - Cadmium/*isolation & purification
MH  - Cations, Divalent
MH  - Chitosan/*chemistry
MH  - Copper/*isolation & purification
MH  - Diatomaceous Earth/*chemistry
MH  - Equipment Reuse
MH  - Humans
MH  - Hydrogen-Ion Concentration
MH  - Kinetics
MH  - Sodium Hydroxide/chemistry
MH  - Temperature
MH  - Thermodynamics
MH  - Wastewater/chemistry
MH  - Water Pollutants, Chemical/*isolation & purification
MH  - Water Purification/methods
MH  - Zinc/*isolation & purification
OTO - NOTNLM
OT  - Adsorption
OT  - Chitosan
OT  - Diatomaceous earth
OT  - Zn(II) ions
EDAT- 2017/08/16 06:00
MHDA- 2018/07/10 06:00
CRDT- 2017/08/16 06:00
PHST- 2017/06/05 00:00 [received]
PHST- 2017/08/06 00:00 [revised]
PHST- 2017/08/08 00:00 [accepted]
PHST- 2017/08/16 06:00 [pubmed]
PHST- 2018/07/10 06:00 [medline]
PHST- 2017/08/16 06:00 [entrez]
AID - S0141-8130(17)32008-1 [pii]
AID - 10.1016/j.ijbiomac.2017.08.053 [doi]
PST - ppublish
SO  - Int J Biol Macromol. 2018 Jan;106:602-610. doi: 10.1016/j.ijbiomac.2017.08.053. 
      Epub 2017 Aug 12.