MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment
The shortage of water resources has always been one of the most difficult problems that perplexes humanity. Solar steam generation (SSG) has been a new non-polluting and low-cost water purification method in recent years. However, the high cost of traditional photothermal conversion materials and th...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-02-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/28/4/1719 |
| _version_ | 1797619000030527488 |
|---|---|
| author | Zhi Bai Haifeng Xu Guang Li Bo Yang Jixin Yao Kai Guo Nan Wang |
| author_facet | Zhi Bai Haifeng Xu Guang Li Bo Yang Jixin Yao Kai Guo Nan Wang |
| author_sort | Zhi Bai |
| collection | DOAJ |
| description | The shortage of water resources has always been one of the most difficult problems that perplexes humanity. Solar steam generation (SSG) has been a new non-polluting and low-cost water purification method in recent years. However, the high cost of traditional photothermal conversion materials and the low efficiency of photothermal conversion has restricted the large-scale application of SSG technology. In this work, composite materials with Fe<sub>3</sub>O<sub>4</sub> nanospheres attached to MoS<sub>2</sub> nanosheets were synthesized, which increased the absorbance and specific surface area of the composite materials, reduced the sunlight reflection, and increased the photothermal conversion efficiency. During the experiment, the composite material was evenly coated on cotton. The strong water absorption of cotton ensured that the water could be transported sufficiently to the surface for evaporation. Under one sun irradiation intensity, the evaporation rate of the sample synthesized in this work reached 1.42 kg m<sup>−2</sup> h<sup>−1</sup>; the evaporation efficiency is 89.18%. In addition, the surface temperature of the sample can reach 41.6 °C, which has far exceeded most photothermal conversion materials. Furthermore, the use of this composite material as an SSG device for seawater desalination and sewage purification can remove more than 98% of salt ions in seawater, and the removal rate of heavy metal ions in sewage is close to 100%, with a good seawater desalination capacity and sewage purification capacity. This work provides a new idea for the application of composite materials in the field of seawater desalination and sewage purification. |
| first_indexed | 2024-03-11T08:21:52Z |
| format | Article |
| id | doaj.art-24beee2d6b0448d9b970eacbaccdc978 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T08:21:52Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-24beee2d6b0448d9b970eacbaccdc9782023-11-16T22:22:18ZengMDPI AGMolecules1420-30492023-02-01284171910.3390/molecules28041719MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water TreatmentZhi Bai0Haifeng Xu1Guang Li2Bo Yang3Jixin Yao4Kai Guo5Nan Wang6School of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, ChinaSchool of Information Engineering, Suzhou University, Suzhou 234000, ChinaAnhui Key Laboratory of Information Materials and Devices, Institute of Physical Science and Information Technology, School of Materials Science and Engineering, Anhui University, Hefei 230601, ChinaSchool of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, ChinaUniversities Joint Key Laboratory of Photoelectric Detection Science and Technology in Anhui Province, Hefei Normal University, Hefei 230601, ChinaSchool of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, ChinaSchool of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, ChinaThe shortage of water resources has always been one of the most difficult problems that perplexes humanity. Solar steam generation (SSG) has been a new non-polluting and low-cost water purification method in recent years. However, the high cost of traditional photothermal conversion materials and the low efficiency of photothermal conversion has restricted the large-scale application of SSG technology. In this work, composite materials with Fe<sub>3</sub>O<sub>4</sub> nanospheres attached to MoS<sub>2</sub> nanosheets were synthesized, which increased the absorbance and specific surface area of the composite materials, reduced the sunlight reflection, and increased the photothermal conversion efficiency. During the experiment, the composite material was evenly coated on cotton. The strong water absorption of cotton ensured that the water could be transported sufficiently to the surface for evaporation. Under one sun irradiation intensity, the evaporation rate of the sample synthesized in this work reached 1.42 kg m<sup>−2</sup> h<sup>−1</sup>; the evaporation efficiency is 89.18%. In addition, the surface temperature of the sample can reach 41.6 °C, which has far exceeded most photothermal conversion materials. Furthermore, the use of this composite material as an SSG device for seawater desalination and sewage purification can remove more than 98% of salt ions in seawater, and the removal rate of heavy metal ions in sewage is close to 100%, with a good seawater desalination capacity and sewage purification capacity. This work provides a new idea for the application of composite materials in the field of seawater desalination and sewage purification.https://www.mdpi.com/1420-3049/28/4/1719solar steam generationFe<sub>3</sub>O<sub>4</sub>MoS<sub>2</sub>desalinationwater treatment |
| spellingShingle | Zhi Bai Haifeng Xu Guang Li Bo Yang Jixin Yao Kai Guo Nan Wang MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment Molecules solar steam generation Fe<sub>3</sub>O<sub>4</sub> MoS<sub>2</sub> desalination water treatment |
| title | MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment |
| title_full | MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment |
| title_fullStr | MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment |
| title_full_unstemmed | MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment |
| title_short | MoS<sub>2</sub> Nanosheets Decorated with Fe<sub>3</sub>O<sub>4</sub> Nanoparticles for Highly Efficient Solar Steam Generation and Water Treatment |
| title_sort | mos sub 2 sub nanosheets decorated with fe sub 3 sub o sub 4 sub nanoparticles for highly efficient solar steam generation and water treatment |
| topic | solar steam generation Fe<sub>3</sub>O<sub>4</sub> MoS<sub>2</sub> desalination water treatment |
| url | https://www.mdpi.com/1420-3049/28/4/1719 |
| work_keys_str_mv | AT zhibai mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment AT haifengxu mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment AT guangli mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment AT boyang mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment AT jixinyao mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment AT kaiguo mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment AT nanwang mossub2subnanosheetsdecoratedwithfesub3subosub4subnanoparticlesforhighlyefficientsolarsteamgenerationandwatertreatment |