Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate

Electronic waste has become a global concern, as it has been steadily increasing over the years. The lack of regulation and appropriate processing facilities has rendered these wastes an environmental hazard. However, they represent excellent alternative sources of precious metals, which are highly...

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Main Authors: Rizki, Intan Nurul, Ilma Amalina, Ilma Amalina, Hasan, Nurul Sahida, Khusnun, Nur Farahain, Abdul Jalil, Aishah, Mochamad Lutfi Firmansyah, Mochamad Lutfi Firmansyah
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Published: Elsevier Ltd 2023
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Online Access:http://eprints.utm.my/106221/
http://dx.doi.org/10.1016/j.chemosphere.2023.140455
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spelling my.utm.1062212024-06-29T05:04:40Z http://eprints.utm.my/106221/ Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate Rizki, Intan Nurul Ilma Amalina, Ilma Amalina Hasan, Nurul Sahida Khusnun, Nur Farahain Abdul Jalil, Aishah Mochamad Lutfi Firmansyah, Mochamad Lutfi Firmansyah TP Chemical technology Electronic waste has become a global concern, as it has been steadily increasing over the years. The lack of regulation and appropriate processing facilities has rendered these wastes an environmental hazard. However, they represent excellent alternative sources of precious metals, which are highly in demand in various industries. Adsorption has been a popular method for metal removal/recovery because of several advantages, such as ease of use and low cost. In this regard, it is crucial to develop an inexpensive and functionalized adsorbent to selectively adsorb precious metals. Thus, silica, which is derived from rice husk and is abundantly present in Indonesia, was functionalized using an ionic liquid (SiRH_Im) and used for Au(III) adsorption from a simulated mobile phone leach liquor. SiRH_Im exhibited a high adsorption capacity (232.5 mg g-1). The Au(III) adsorption kinetic suitably fitted with the pseudo-second-order kinetic model. The Au(III) adsorption followed a chemisorption route that suited the monolayer model. Thomas’ and Yoon-Nelson's models were well suited for the continuous Au(III) behavior. Selective recovery of Au(III) from SiRH_Im was achieved via sequential desorption. SiRH_Im also showed excellent reusability, as indicated by a negligible decrease in adsorptive performance over three cycles. The functionalization of silica derived from rice husk using an ionic liquid led to the successful creation of a solid adsorbent with a high adsorption capacity toward precious metals present in a simulated leach solution. Our results highlight the benefit of the functionalization of biomass through the immobilization of an ionic liquid toward the enhancement of its adsorption capability. Elsevier Ltd 2023 Article PeerReviewed Rizki, Intan Nurul and Ilma Amalina, Ilma Amalina and Hasan, Nurul Sahida and Khusnun, Nur Farahain and Abdul Jalil, Aishah and Mochamad Lutfi Firmansyah, Mochamad Lutfi Firmansyah (2023) Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate. Chemosphere, 345 (NA). NA-NA. ISSN 0045-6535 http://dx.doi.org/10.1016/j.chemosphere.2023.140455 DOI : 10.1016/j.chemosphere.2023.140455
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Rizki, Intan Nurul
Ilma Amalina, Ilma Amalina
Hasan, Nurul Sahida
Khusnun, Nur Farahain
Abdul Jalil, Aishah
Mochamad Lutfi Firmansyah, Mochamad Lutfi Firmansyah
Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
description Electronic waste has become a global concern, as it has been steadily increasing over the years. The lack of regulation and appropriate processing facilities has rendered these wastes an environmental hazard. However, they represent excellent alternative sources of precious metals, which are highly in demand in various industries. Adsorption has been a popular method for metal removal/recovery because of several advantages, such as ease of use and low cost. In this regard, it is crucial to develop an inexpensive and functionalized adsorbent to selectively adsorb precious metals. Thus, silica, which is derived from rice husk and is abundantly present in Indonesia, was functionalized using an ionic liquid (SiRH_Im) and used for Au(III) adsorption from a simulated mobile phone leach liquor. SiRH_Im exhibited a high adsorption capacity (232.5 mg g-1). The Au(III) adsorption kinetic suitably fitted with the pseudo-second-order kinetic model. The Au(III) adsorption followed a chemisorption route that suited the monolayer model. Thomas’ and Yoon-Nelson's models were well suited for the continuous Au(III) behavior. Selective recovery of Au(III) from SiRH_Im was achieved via sequential desorption. SiRH_Im also showed excellent reusability, as indicated by a negligible decrease in adsorptive performance over three cycles. The functionalization of silica derived from rice husk using an ionic liquid led to the successful creation of a solid adsorbent with a high adsorption capacity toward precious metals present in a simulated leach solution. Our results highlight the benefit of the functionalization of biomass through the immobilization of an ionic liquid toward the enhancement of its adsorption capability.
format Article
author Rizki, Intan Nurul
Ilma Amalina, Ilma Amalina
Hasan, Nurul Sahida
Khusnun, Nur Farahain
Abdul Jalil, Aishah
Mochamad Lutfi Firmansyah, Mochamad Lutfi Firmansyah
author_facet Rizki, Intan Nurul
Ilma Amalina, Ilma Amalina
Hasan, Nurul Sahida
Khusnun, Nur Farahain
Abdul Jalil, Aishah
Mochamad Lutfi Firmansyah, Mochamad Lutfi Firmansyah
author_sort Rizki, Intan Nurul
title Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
title_short Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
title_full Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
title_fullStr Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
title_full_unstemmed Functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
title_sort functionalized agriculture-derived biomass-based adsorbent for the continuous recovery of gold from a simulated mobile phone leachate
publisher Elsevier Ltd
publishDate 2023
url http://eprints.utm.my/106221/
http://dx.doi.org/10.1016/j.chemosphere.2023.140455
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