Luận văn comparison study of ammonium ions adsorption on zeolite, activated carbon and amino

THAI NGUYEN UNIVERSITY

OF AGRICULTURE AND FORESTRY

NATIONAL CHIAO TUNG

UNIVERSITY

NGUYEN DUC MANH

COMPARISON STUDY OF AMMONIUM IONS ADSORPTION ON

ZEOLITE, ACTIVATED CARBON AND AMINO-FUNCTIONALIZED

SILICA IN AQUEOUS SOLUTIONS

BACHELOR THESIS

Study Mode : Full-time

Major : Environmental Science and Management

Faculty : International Programs Office

Batch : 2013 - 2017

Thai Nguyen, 2017

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Thai Nguyen University of Agriculture and Forestry

Degree Program Bachelor of Environmental Science and Management

Student name Nguyen Duc Manh

Student ID DTN1354110099

Thesis Title Comparison Study of Ammonium ions Adsorption on

Zeolite, Activated carbon and Amino-functionalized silica in

aqueous solutions

Supervisor(s) 1. Prof. Sue-Min Chang

2. Assoc. Prof. Nguyen Thi Ha

Supervisor’signature

Abstract:

This study examined the capability of Amino-functionalized silica, Activated carbon

and Zeolite, to remove ammonium ions from water. Studies were conducted to

examine the ammonium removal capacity of these three materials under various

experimental conditions of contact time and ammonium concentration. The

adsorption materials were prepared and investigated by various techniques including

Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET) to

examine the functional groups and surface areas, respectively. The pseudo first￾order, pseudo second-order kinetic models were used to describe the kinetic data.

The ammonium removal data for Amino functionalized silica and Activated carbon

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most highly correlated with pseudo-first-order adsorption reaction model, whereas

Zeolite was best fitted with pseudo-second-order model. The Langmuir and

Freundlich models were applied to describe the equilibrium isotherms for

ammonium adsorption capaciy. The findings showed that the adsorption of

ammonium on the Activated carbon was best fitted with the Langmuir model,Zeolite

was best fitted with the Freundlich model, Amino functionalized silica could be

described by both Langmuir and Freundlich model. The results also indicated a

significant potential of the Amino functionalized silica as an alternative adsorbent

material for ammonium removal from aqueous solutions.

Keywords Amino groups, Adsorption, Amino￾functionalized material, ammonium ion

(

).

Number of pages 47

Date of submission 20/9/2017

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ACKNOWLEDGMENT

The completion of this thesis would not have been possible without the help of many

people. At this very moment of accomplishment, I would like to express my sincere gratitude

to my supervisor Prof. Sue Min Chang, Professor Institute of Environmental Engineering

National Chiao Tung University, Taiwan. Thanks for giving me the opportunity to be a

student of Environmental Nanomaterial Lab, as well as who suggested the topic and support

me during the internship time.

Secondly, I would like to express my sincere gratitude to Assoc. Prof. Nguyen Thi Ha,

Faculty of Environmental Science, VNU University of Science, Ha Noi, Viet Nam. Thanks

for her guidance, encouragement and support throughout the entire study and complement of

this thesis.

I am thankful to Environmental Nanomaterial Laboratory of National Chiao Tung

University for providing me facilities to conduct my research work. I am also thankful to all

members in the laboratory for their help during my internship course.

Student

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