PMID- 24734585
OWN - NLM
STAT- MEDLINE
DCOM- 20140513
LR  - 20190715
IS  - 1533-4880 (Print)
IS  - 1533-4880 (Linking)
VI  - 14
IP  - 5
DP  - 2014 May
TI  - Gamma-Fe2O3 nanospindles for environmental remediation: a study on the adsorption 
      and desorption characteristics of acridine orange and direct red dyes.
PG  - 3545-51
AB  - In this paper, the adsorption and desorption characteristics of two harmful dyes, 
      i.e., acridine orange (AO; cationic dye) and direct red 81 (DR; anionic dye) from 
      aqueous solutions onto gamma-Fe2O3 nanospindles have been investigated. The 
      nanospindles were synthesized by facile chemical precipitation method and 
      characterized in detail in terms of their morphological, compositional and 
      optical properties. Batch mode experiments were conducted to examine the 
      adsorption process by investigating several factors such as effect of pH, amount 
      of adsorbent dose, and effect of dye concentrations. The experimental results 
      indicated that the maximum adsorption capacity occurred at pH = 6.0 for AO and at 
      pH = 4.0 for DR, respectively with 0.03 gm of adsorbent. Langmuir, Freundlich, 
      Temkin, and Dubinin-Radushkevich isotherm models have been used to evaluate the 
      ongoing adsorption. Kinetic parameters for the adsorption have also been applied. 
      Moreover, the gamma-Fe2O3 nanospindles and the adsorbed dyes were desorbed with 
      good performance and could be reused to absorb the dyes again.
FAU - Chaudhary, Ganga Ram
AU  - Chaudhary GR
FAU - Saharan, Priya
AU  - Saharan P
FAU - Umar, Ahmad
AU  - Umar A
FAU - Mehta, S K
AU  - Mehta SK
FAU - Mor, Suman
AU  - Mor S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Nanosci Nanotechnol
JT  - Journal of nanoscience and nanotechnology
JID - 101088195
RN  - 0 (Azo Compounds)
RN  - 0 (Ferric Compounds)
RN  - 1K09F3G675 (ferric oxide)
RN  - 7E49Q56PNB (Direct Red 81)
RN  - F30N4O6XVV (Acridine Orange)
SB  - IM
MH  - Acridine Orange/*chemistry
MH  - Adsorption
MH  - Azo Compounds/*chemistry
MH  - Biological Oxygen Demand Analysis
MH  - Environmental Restoration and Remediation/*methods
MH  - Ferric Compounds/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Kinetics
MH  - Microscopy, Electron, Transmission
MH  - *Nanostructures
EDAT- 2014/04/17 06:00
MHDA- 2014/05/14 06:00
CRDT- 2014/04/17 06:00
PHST- 2014/04/17 06:00 [entrez]
PHST- 2014/04/17 06:00 [pubmed]
PHST- 2014/05/14 06:00 [medline]
AID - 10.1166/jnn.2014.8715 [doi]
PST - ppublish
SO  - J Nanosci Nanotechnol. 2014 May;14(5):3545-51. doi: 10.1166/jnn.2014.8715.