A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water
A new photoelectrocatalytic water purification system was investigated by combining photocatalysis and electrochemistry. This configuration achieves simultaneous removal of both organic compounds and inorganic heavy metal ions from water by taking a carbon electrode as the working electrode and anot...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2025-01-01
|
| Series: | Research |
| Online Access: | https://spj.science.org/doi/10.34133/research.0654 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849725660321284096 |
|---|---|
| author | Peng Zhou Yingming Xu Tianhong Cui |
| author_facet | Peng Zhou Yingming Xu Tianhong Cui |
| author_sort | Peng Zhou |
| collection | DOAJ |
| description | A new photoelectrocatalytic water purification system was investigated by combining photocatalysis and electrochemistry. This configuration achieves simultaneous removal of both organic compounds and inorganic heavy metal ions from water by taking a carbon electrode as the working electrode and another electrode coated with a photocatalyst as the counter electrode. A negative bias potential is imparted onto the working electrode to induce the reduction of heavy metal ions, whereas the photocatalytic degradation of organic pollutants on the counter electrode is amplified via the transfer of photoexcited electrons from the counter electrode to the working electrode. Evaluations conducted in bulk solutions demonstrated that photoelectrocatalysis surpassed photocatalysis by yielding an organic matter degradation efficiency 2.3 times higher, successfully degrading 98% of a 10 μM methylene blue solution within 2 h. Simultaneously, the system realized the recovery of heavy metal ions, including copper, lead, and cadmium. This new photoelectrocatalytic water purification system was further integrated with microchannels, and the testing data affirm the substantial potential for system miniaturization. |
| format | Article |
| id | doaj-art-ff87d46bb92a45a78b7787e25c73fd69 |
| institution | DOAJ |
| issn | 2639-5274 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Research |
| spelling | doaj-art-ff87d46bb92a45a78b7787e25c73fd692025-08-20T03:10:24ZengAmerican Association for the Advancement of Science (AAAS)Research2639-52742025-01-01810.34133/research.0654A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in WaterPeng Zhou0Yingming Xu1Tianhong Cui2Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.A new photoelectrocatalytic water purification system was investigated by combining photocatalysis and electrochemistry. This configuration achieves simultaneous removal of both organic compounds and inorganic heavy metal ions from water by taking a carbon electrode as the working electrode and another electrode coated with a photocatalyst as the counter electrode. A negative bias potential is imparted onto the working electrode to induce the reduction of heavy metal ions, whereas the photocatalytic degradation of organic pollutants on the counter electrode is amplified via the transfer of photoexcited electrons from the counter electrode to the working electrode. Evaluations conducted in bulk solutions demonstrated that photoelectrocatalysis surpassed photocatalysis by yielding an organic matter degradation efficiency 2.3 times higher, successfully degrading 98% of a 10 μM methylene blue solution within 2 h. Simultaneously, the system realized the recovery of heavy metal ions, including copper, lead, and cadmium. This new photoelectrocatalytic water purification system was further integrated with microchannels, and the testing data affirm the substantial potential for system miniaturization.https://spj.science.org/doi/10.34133/research.0654 |
| spellingShingle | Peng Zhou Yingming Xu Tianhong Cui A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water Research |
| title | A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water |
| title_full | A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water |
| title_fullStr | A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water |
| title_full_unstemmed | A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water |
| title_short | A New Photoelectrocatalytic Water Purification System for Simultaneous Removal of Organic Pollutants and Heavy Metal Ions in Water |
| title_sort | new photoelectrocatalytic water purification system for simultaneous removal of organic pollutants and heavy metal ions in water |
| url | https://spj.science.org/doi/10.34133/research.0654 |
| work_keys_str_mv | AT pengzhou anewphotoelectrocatalyticwaterpurificationsystemforsimultaneousremovaloforganicpollutantsandheavymetalionsinwater AT yingmingxu anewphotoelectrocatalyticwaterpurificationsystemforsimultaneousremovaloforganicpollutantsandheavymetalionsinwater AT tianhongcui anewphotoelectrocatalyticwaterpurificationsystemforsimultaneousremovaloforganicpollutantsandheavymetalionsinwater AT pengzhou newphotoelectrocatalyticwaterpurificationsystemforsimultaneousremovaloforganicpollutantsandheavymetalionsinwater AT yingmingxu newphotoelectrocatalyticwaterpurificationsystemforsimultaneousremovaloforganicpollutantsandheavymetalionsinwater AT tianhongcui newphotoelectrocatalyticwaterpurificationsystemforsimultaneousremovaloforganicpollutantsandheavymetalionsinwater |