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author:

Qi, Zhaoyang (Qi, Zhaoyang.) [1] | Zhou, Miaomiao (Zhou, Miaomiao.) [2] | Li, Ling (Li, Ling.) [3] | Qiu, Ting (Qiu, Ting.) [4] | Ye, Changshen (Ye, Changshen.) [5]

Indexed by:

EI

Abstract:

Different zeolites were screened to achieve the aim of effective selective removal of p-xylene (PX) from the pure terephthalic acid (PTA) wastewater, and the ZSM-5 zeolite modified by NH4Cl was chosen as a suitable adsorbent because of the maximum equilibrium adsorption capacity and the largest selectivity factor. The selectivity factors of PX to Co2+ and PX to Mn2+ can attain 1778.069 and 1875.650, respectively, and the saturation adsorption capacity of PX even increases to 126.10 mg·g-1. First, the adsorption experiments were conducted at 298.15, 308.15, 318.15, and 328.15 K with the initial concentration of PX ranging from 50 to 180 mg·L-1 in a batch adsorber. The Langmuir model agreed better with the experimental results than did the Freundlich model. The adsorption parameters of thermodynamics are ΔS = -17.83 J·mol-1·K-1, ΔH = -12.33 kJ mol-1, and ΔG +-exchanged ZSM-5 zeolite was a highly efficient material for selectively adsorbing PX from PTA wastewater. (Figure Presented). © 2017 American Chemical Society.

Keyword:

Chlorine compounds Dyes Physisorption Thermodynamics Xylene Zeolites

Community:

  • [ 1 ] [Qi, Zhaoyang]School of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Zhou, Miaomiao]School of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 3 ] [Li, Ling]School of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Qiu, Ting]School of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 5 ] [Ye, Changshen]School of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China

Reprint 's Address:

  • [ye, changshen]school of chemical engineering, fuzhou university, fuzhou; 350116, china

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Source :

Journal of Chemical and Engineering Data

ISSN: 0021-9568

Year: 2017

Issue: 3

Volume: 62

Page: 1047-1057

2 . 1 9 6

JCR@2017

2 . 0 0 0

JCR@2023

ESI HC Threshold:226

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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