Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions

Ruemei Fan; Ching lung Chen; Jui yen Lin; Jing hua Tzeng; Chih-Pin Huang; Chengdi Dong; C. P. Huang

doi:10.1016/j.biortech.2018.10.064

Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions

Ruemei Fan, Ching lung Chen, Jui yen Lin, Jing hua Tzeng, Chih-Pin Huang, Chengdi Dong, C. P. Huang^*

^*Corresponding author for this work

Institute of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

70 Scopus citations

Abstract

This research aims at studying the characteristics of ammonium adsorption onto hydrous bamboo biochar. Results showed that pH played the most important role in ammonium adsorption. High ionic strength enhanced the ammonium adsorption capacity of bamboo biochar. Ammonium adsorption was exothermic and spontaneous. FTIR results showed shift, disappearance, or appearance of specific functional groups on the bamboo biochar surface. Surface precipitation and complex formation contributed to the adsorption of ammonium onto hydrous bamboo biochar. Biochar can be an effective adsorbate for ammonium removal from water. Additionally, the formation of nitrogen containing precipitates on the biochar surface, potentially, leads to the in-situ synthesis of slow-release fertilizer.

Original language	American English
Pages (from-to)	465-472
Number of pages	8
Journal	Bioresource Technology
Volume	272
DOIs	https://doi.org/10.1016/j.biortech.2018.10.064
State	Published - 1 Jan 2019

Keywords

Ammonium
Biochar
Heterogeneous adsorption
Slow-release fertilizer
Surface complexation
Surface precipitation

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2018.10.064

Cite this

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title = "Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions",

abstract = "This research aims at studying the characteristics of ammonium adsorption onto hydrous bamboo biochar. Results showed that pH played the most important role in ammonium adsorption. High ionic strength enhanced the ammonium adsorption capacity of bamboo biochar. Ammonium adsorption was exothermic and spontaneous. FTIR results showed shift, disappearance, or appearance of specific functional groups on the bamboo biochar surface. Surface precipitation and complex formation contributed to the adsorption of ammonium onto hydrous bamboo biochar. Biochar can be an effective adsorbate for ammonium removal from water. Additionally, the formation of nitrogen containing precipitates on the biochar surface, potentially, leads to the in-situ synthesis of slow-release fertilizer.",

keywords = "Ammonium, Biochar, Heterogeneous adsorption, Slow-release fertilizer, Surface complexation, Surface precipitation",

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language = "American English",

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TY - JOUR

T1 - Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions

AU - Fan, Ruemei

AU - Chen, Ching lung

AU - Lin, Jui yen

AU - Tzeng, Jing hua

AU - Huang, Chih-Pin

AU - Dong, Chengdi

AU - Huang, C. P.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - This research aims at studying the characteristics of ammonium adsorption onto hydrous bamboo biochar. Results showed that pH played the most important role in ammonium adsorption. High ionic strength enhanced the ammonium adsorption capacity of bamboo biochar. Ammonium adsorption was exothermic and spontaneous. FTIR results showed shift, disappearance, or appearance of specific functional groups on the bamboo biochar surface. Surface precipitation and complex formation contributed to the adsorption of ammonium onto hydrous bamboo biochar. Biochar can be an effective adsorbate for ammonium removal from water. Additionally, the formation of nitrogen containing precipitates on the biochar surface, potentially, leads to the in-situ synthesis of slow-release fertilizer.

AB - This research aims at studying the characteristics of ammonium adsorption onto hydrous bamboo biochar. Results showed that pH played the most important role in ammonium adsorption. High ionic strength enhanced the ammonium adsorption capacity of bamboo biochar. Ammonium adsorption was exothermic and spontaneous. FTIR results showed shift, disappearance, or appearance of specific functional groups on the bamboo biochar surface. Surface precipitation and complex formation contributed to the adsorption of ammonium onto hydrous bamboo biochar. Biochar can be an effective adsorbate for ammonium removal from water. Additionally, the formation of nitrogen containing precipitates on the biochar surface, potentially, leads to the in-situ synthesis of slow-release fertilizer.

KW - Ammonium

KW - Biochar

KW - Heterogeneous adsorption

KW - Slow-release fertilizer

KW - Surface complexation

KW - Surface precipitation

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DO - 10.1016/j.biortech.2018.10.064

M3 - Article

C2 - 30390539

AN - SCOPUS:85055619933

SN - 0960-8524

VL - 272

SP - 465

EP - 472

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Adsorption characteristics of ammonium ion onto hydrous biochars in dilute aqueous solutions

Abstract

Keywords

UN SDGs

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