L-Histidine-Modified Silica from Rice Husk and Optimization of Adsorption Condition for Extractive Concentration of Pb(II)
| Main Authors: | Nurhajawarsi, Nurhajawarsi, Rafi, Mohamad, Syafitri, Utami Dyah, Rohaeti, Eti |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Chemistry Department, The University of Brawijaya
, 2018
|
| Subjects: | |
| Online Access: |
https://jpacr.ub.ac.id/index.php/jpacr/article/view/402 https://jpacr.ub.ac.id/index.php/jpacr/article/view/402/pdf |
| ctrlnum |
article-402 |
|---|---|
| fullrecord |
<?xml version="1.0"?>
<dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="en-US">L-Histidine-Modified Silica from Rice Husk and Optimization of Adsorption Condition for Extractive Concentration of Pb(II)</title><creator>Nurhajawarsi, Nurhajawarsi</creator><creator>Rafi, Mohamad</creator><creator>Syafitri, Utami Dyah</creator><creator>Rohaeti, Eti</creator><subject lang="en-US"/><subject lang="en-US">L-histidine, silica, rice husk, extractive concentration, Pb(II)</subject><description lang="en-US">A new chelating agent, L-histidine-modified silica from rice husk (LHSRH), was prepared to increase the adsorption capacity and selectivity for Pb(II). LHSRH was synthesized by immobilizing L-histidine on silica from rice husk (RH) modified with 3-aminopropyltrimethoxysilane (APTMS). Silica from rice husk (SRH) was synthesized via precipitation process by adding hydrochloric acid solution to rice husk ash (RHA). The RHA was subsequently destructed with sodium hydroxide and heated to obtain sodium silicate (Na2SiO3). SRH was characterized by Fourier transform infrared spectroscopy and x-ray diffraction. The LHSRH was used further to adsorp Pb(II) metal ion. The pH range, amount of adsorbent, and adsorption time were optimized by response surface methodology. The optimum condition for the adsorption of Pb(II) was pH 5, an amount of adsorbent 0.1 g; and adsorption time 15 minutes. The adsorption capacity for Pb(II) ion was found to be 62.5 mg/g. The adsorption behavior of the matrix followed the Langmuir’s model.</description><publisher lang="en-US">Chemistry Department, The University of Brawijaya</publisher><contributor lang="en-US"/><date>2018-05-18</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Journal:Article</type><type>File:application/pdf</type><identifier>https://jpacr.ub.ac.id/index.php/jpacr/article/view/402</identifier><identifier>10.21776/ub.jpacr.2018.007.02.402</identifier><source lang="en-US">The Journal of Pure and Applied Chemistry Research; Vol 7, No 2 (2018): Edition May-August 2018; 198-208</source><source>2541-0733</source><source>2302-4690</source><language>eng</language><relation>https://jpacr.ub.ac.id/index.php/jpacr/article/view/402/pdf</relation><rights lang="en-US">Copyright (c) 2018 Nurhajawarsi Nurhajawarsi, Mohamad Rafi, Utami Dyah Syafitri, Eti Rohaeti</rights><rights lang="en-US">http://creativecommons.org/licenses/by-nc/4.0</rights><recordID>article-402</recordID></dc>
|
| language |
eng |
| format |
Journal:Article Journal Other:info:eu-repo/semantics/publishedVersion Other File:application/pdf File Journal:eJournal |
| author |
Nurhajawarsi, Nurhajawarsi Rafi, Mohamad Syafitri, Utami Dyah Rohaeti, Eti |
| title |
L-Histidine-Modified Silica from Rice Husk and Optimization of Adsorption Condition for Extractive Concentration of Pb(II) |
| publisher |
Chemistry Department, The University of Brawijaya |
| publishDate |
2018 |
| topic |
L-histidine silica rice husk extractive concentration Pb(II) |
| url |
https://jpacr.ub.ac.id/index.php/jpacr/article/view/402 https://jpacr.ub.ac.id/index.php/jpacr/article/view/402/pdf |
| contents |
A new chelating agent, L-histidine-modified silica from rice husk (LHSRH), was prepared to increase the adsorption capacity and selectivity for Pb(II). LHSRH was synthesized by immobilizing L-histidine on silica from rice husk (RH) modified with 3-aminopropyltrimethoxysilane (APTMS). Silica from rice husk (SRH) was synthesized via precipitation process by adding hydrochloric acid solution to rice husk ash (RHA). The RHA was subsequently destructed with sodium hydroxide and heated to obtain sodium silicate (Na2SiO3). SRH was characterized by Fourier transform infrared spectroscopy and x-ray diffraction. The LHSRH was used further to adsorp Pb(II) metal ion. The pH range, amount of adsorbent, and adsorption time were optimized by response surface methodology. The optimum condition for the adsorption of Pb(II) was pH 5, an amount of adsorbent 0.1 g; and adsorption time 15 minutes. The adsorption capacity for Pb(II) ion was found to be 62.5 mg/g. The adsorption behavior of the matrix followed the Langmuir’s model. |
| id |
IOS727.article-402 |
| institution |
Universitas Brawijaya |
| affiliation |
mill.onesearch.id fkp2tn.onesearch.id |
| institution_id |
30 |
| institution_type |
library:university library |
| library |
Perpustakaan Universitas Brawijaya |
| library_id |
480 |
| collection |
The Journal of Pure and Applied Chemistry Research |
| repository_id |
727 |
| city |
MALANG |
| province |
JAWA TIMUR |
| repoId |
IOS727 |
| first_indexed |
2018-05-09T19:13:34Z |
| last_indexed |
2021-10-08T03:17:14Z |
| recordtype |
dc |
| merged_child_boolean |
1 |
| _version_ |
1722488687300706304 |
| score |
17.610468 |