Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection
Naturally available tubular Halloysite nanoclay is modified with platinum for the fabrication of autonomous self-moving nanojets. The nanojets exhibit great performance in the removal of heavy metal ions in aqueous solutions. The heavy metal ions get readily adsorbed onto the large surface area avai...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/150421 |
| _version_ | 1826113214821171200 |
|---|---|
| author | Maric, Tijana Mayorga-Martinez, Carmen C. Muhammad Zafir Mohamad Nasir Pumera, Martin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Maric, Tijana Mayorga-Martinez, Carmen C. Muhammad Zafir Mohamad Nasir Pumera, Martin |
| author_sort | Maric, Tijana |
| collection | NTU |
| description | Naturally available tubular Halloysite nanoclay is modified with platinum for the fabrication of autonomous self-moving nanojets. The nanojets exhibit great performance in the removal of heavy metal ions in aqueous solutions. The heavy metal ions get readily adsorbed onto the large surface area available on the Halloysite nanoclay. The fabricated nanojets are observed to have a greater efficiency with sensing of larger sized metal ions (Hg2+ and Pb2+) as compared to smaller sized ions (Zn2+ and Cd2+), and especially sensitive toward the “detection” of mercury ions. The proposed system displays a wide detection range (0.25–1000 ppb). Moreover, the system displays high sensitivity with low limit of detection (3.24 ppb) achieved, which falls in the permissible range for mercury in drinking water (2–5.5 ppb) as set by the World Health Organisation. The self-moving nanojets serve as mobile nanosensors for the simultaneous detection and removal of heavy metals in aqueous samples. |
| first_indexed | 2024-10-01T03:19:33Z |
| format | Journal Article |
| id | ntu-10356/150421 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:19:33Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1504212021-06-04T08:11:29Z Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection Maric, Tijana Mayorga-Martinez, Carmen C. Muhammad Zafir Mohamad Nasir Pumera, Martin School of Physical and Mathematical Sciences Engineering::Materials Bubble Propulsion Halloysite Nanoclay Naturally available tubular Halloysite nanoclay is modified with platinum for the fabrication of autonomous self-moving nanojets. The nanojets exhibit great performance in the removal of heavy metal ions in aqueous solutions. The heavy metal ions get readily adsorbed onto the large surface area available on the Halloysite nanoclay. The fabricated nanojets are observed to have a greater efficiency with sensing of larger sized metal ions (Hg2+ and Pb2+) as compared to smaller sized ions (Zn2+ and Cd2+), and especially sensitive toward the “detection” of mercury ions. The proposed system displays a wide detection range (0.25–1000 ppb). Moreover, the system displays high sensitivity with low limit of detection (3.24 ppb) achieved, which falls in the permissible range for mercury in drinking water (2–5.5 ppb) as set by the World Health Organisation. The self-moving nanojets serve as mobile nanosensors for the simultaneous detection and removal of heavy metals in aqueous samples. Agency for Science, Technology and Research (A*STAR) This work was supported by A*STAR grant (No. SERC A1783c0005), Singapore. Authors acknowledge the financial support of the project Advanced Functional Nanorobots (reg. No. CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR). This article is part of the special series on Advanced Intelligent Systems that showcases the outstanding achievements of leading international researchers on intelligent systems. 2021-06-04T08:11:29Z 2021-06-04T08:11:29Z 2019 Journal Article Maric, T., Mayorga-Martinez, C. C., Muhammad Zafir Mohamad Nasir & Pumera, M. (2019). Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection. Advanced Materials Technologies, 4(2), 1800502-. https://dx.doi.org/10.1002/admt.201800502 2365-709X 0000-0001-5846-2951 https://hdl.handle.net/10356/150421 10.1002/admt.201800502 2-s2.0-85057735437 2 4 1800502 en SERC A1783c0005 Advanced Materials Technologies © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. |
| spellingShingle | Engineering::Materials Bubble Propulsion Halloysite Nanoclay Maric, Tijana Mayorga-Martinez, Carmen C. Muhammad Zafir Mohamad Nasir Pumera, Martin Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| title | Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| title_full | Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| title_fullStr | Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| title_full_unstemmed | Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| title_short | Platinum-Halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| title_sort | platinum halloysite nanoclay nanojets as sensitive and selective mobile nanosensors for mercury detection |
| topic | Engineering::Materials Bubble Propulsion Halloysite Nanoclay |
| url | https://hdl.handle.net/10356/150421 |
| work_keys_str_mv | AT marictijana platinumhalloysitenanoclaynanojetsassensitiveandselectivemobilenanosensorsformercurydetection AT mayorgamartinezcarmenc platinumhalloysitenanoclaynanojetsassensitiveandselectivemobilenanosensorsformercurydetection AT muhammadzafirmohamadnasir platinumhalloysitenanoclaynanojetsassensitiveandselectivemobilenanosensorsformercurydetection AT pumeramartin platinumhalloysitenanoclaynanojetsassensitiveandselectivemobilenanosensorsformercurydetection |