Removal of naproxen from aqueous environment using porous sugarcane bagasse: impact of ionic strength, hardness and surfactant

Removal of naproxen from aqueous environment using porous sugarcane bagasse: impact of ionic... We investigated the impact of ionic strength, hardness and surfactant on the removal of the widely used drug naproxen (NAP) onto the developed porous sugarcane bagasse (PSB). The experiments demonstrated that increases in ionic strength, surfactant and hardness impacted on the removal of NAP from aqueous phase. The surface of the developed materials showed very high (52 %) carbon content and low (2.3 %) moisture content. The presence of hydroxyl and carboxylate groups might be responsible for the removal of NAP, as confirmed by Fourier transform infrared (FTIR) spectroscopic study. The developed material showed relatively higher surface area of 669.76 m2 g−1, and pore volume of 1.15 cm3 g−1 with average particle size of 37.5 µm, justifying its utility for the adsorption process. The developed material also showed heterogeneous surface morphology and graphite-like pattern. The mechanism of adsorption was explained based on spectroscopic analysis. The computed thermodynamics parameters (ΔH° = −22.03 kJ mol−1, ΔS° = −54.53 J mol−1 K−1 and ΔG° = − 5.50 kJ mol−1) confirmed the exothermic and spontaneous nature of the adsorption process. Experiments were also conducted to optimize the operating parameters for maximum possible removal of NAP from aquatic environment. Regeneration of spent adsorbent was carried out using microwave irradiation, achieving ~83.11 % desorption. The energy recovered from the loaded NAP in terms of higher heating value was 14.15 MJ kg−1, further enhancing its utilization. The low cost of PSB (USD 19.49) also justifies its utilization for wastewater treatment from the economic perspective. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Removal of naproxen from aqueous environment using porous sugarcane bagasse: impact of ionic strength, hardness and surfactant

Loading next page...
 
/lp/springer_journal/removal-of-naproxen-from-aqueous-environment-using-porous-sugarcane-hsGNohxHC0
Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2097-z
Publisher site
See Article on Publisher Site

Abstract

We investigated the impact of ionic strength, hardness and surfactant on the removal of the widely used drug naproxen (NAP) onto the developed porous sugarcane bagasse (PSB). The experiments demonstrated that increases in ionic strength, surfactant and hardness impacted on the removal of NAP from aqueous phase. The surface of the developed materials showed very high (52 %) carbon content and low (2.3 %) moisture content. The presence of hydroxyl and carboxylate groups might be responsible for the removal of NAP, as confirmed by Fourier transform infrared (FTIR) spectroscopic study. The developed material showed relatively higher surface area of 669.76 m2 g−1, and pore volume of 1.15 cm3 g−1 with average particle size of 37.5 µm, justifying its utility for the adsorption process. The developed material also showed heterogeneous surface morphology and graphite-like pattern. The mechanism of adsorption was explained based on spectroscopic analysis. The computed thermodynamics parameters (ΔH° = −22.03 kJ mol−1, ΔS° = −54.53 J mol−1 K−1 and ΔG° = − 5.50 kJ mol−1) confirmed the exothermic and spontaneous nature of the adsorption process. Experiments were also conducted to optimize the operating parameters for maximum possible removal of NAP from aquatic environment. Regeneration of spent adsorbent was carried out using microwave irradiation, achieving ~83.11 % desorption. The energy recovered from the loaded NAP in terms of higher heating value was 14.15 MJ kg−1, further enhancing its utilization. The low cost of PSB (USD 19.49) also justifies its utilization for wastewater treatment from the economic perspective.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: May 26, 2015

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off