Correspondence pubs.acs.org/IECR
Response to ‘Comment on “Removal of Crystal Violet by a Novel Cellulose-Based Adsorbent: Comparison with Native Cellulose”’ Yanmei Zhou* and Min Zhang Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, People’s Republic of China
S
ir: In Zhou et al.,1 the pseudo-first-order, pseudo-second order (P−S−O), and Elovich equations are applied for sorption kinetics of crystal violet to modified cellulose, and the linear form of the P−S−O is written as2 t 1 1 = + t 2 qt qe k 2qe (1) When t → 0, the adsorption rate can be written as h = k 2qe 2
(2)
where eq 2 is just a mathematical simplification of eq 1 under the condition of t → 0. Nevertheless, it has also been defined by Ho in 1995 as the initial adsorption rate.3
■
AUTHOR INFORMATION
Corresponding Author
*E-mail:
[email protected]. Notes
The authors declare no competing financial interest.
■
REFERENCES
(1) Zhou, Y.; Zhang, M.; Wang, X.; Huang, Q.; Min, Y.; Ma, T.; Niu, J. Removal of Crystal Violet by a Novel Cellulose-Based Adsorbent: Comparison with Native Cellulose. Ind. Eng. Chem. Res. 2014, 53 (13), 5498−5506. (2) Ho, Y. S.; McKay, G. Kinetic Models for the Sorption of Dye from Aqueous Solution by Wood. Process Saf. Environ. Prot. 1998, 76 (2), 183−191. (3) Ho, Y. S. Adsorption of heavy metals from waste streams by peat. Ph.D. Thesis; University of Birmingham: Birmingham, U.K., 1995.
Published: January 19, 2016 © 2016 American Chemical Society
1148
DOI: 10.1021/acs.iecr.5b04874 Ind. Eng. Chem. Res. 2016, 55, 1148−1148
