Journal
CHEMICAL ENGINEERING JOURNAL
Volume 422, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.130082
Keywords
Water treatment; Membrane separation; MoS2-based membrane; MoS2 nanosheets
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Funding
- Shenzhen Municipal Science and Technology Innovation Council of Shenzhen Government of China [JCYJ20190809151215588]
- Guangdong Provincial Natural Science Foundation of China [2018A030313984]
- Tianjin Municipal Science and Technology Bureau of China [20JCYBJC00560]
- Research Project of Tianjin Education Commission of China [2019KJ103]
- Natural Science Foundation of Fujian Province of China [2018J01526]
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This paper critically reviews the current state-of-the-art of MoS2-based membranes in water treatment and purification, focusing on preparation methods, design types, and applications such as desalination, industrial wastewater treatment, and antifouling properties. MoS2-based membranes have shown significant advancements in various applications, but they also face challenges and opportunities for further research and development.
Membrane separation technologies have proven viable in tackling the issues of water pollution and shortage of freshwater resources with practical applications. Two-dimensional (2D) materials with thickness of one to a few atoms stand out as desirable building blocks to design and fabricate membranes with outstanding performances. Molybdenum disulfide (MoS2), as a promising alternative 2D material, has been currently one of the most intriguing 2D materials beyond graphene due to many excellent physicochemical, mechanical and biological properties, which are not available in graphene-based nanomaterials. However, to the best of our knowledge, there has been few reviews of MoS2-based membranes studies. It is thus urgently needed to summarize key findings of MoS2-based membranes and assess the current research studies in this area. This paper attempts to critically review the present state-of-the-art of MoS2-based membranes in water treatment and purification. Firstly, we briefly introduce the main preparation methods of MoS2 nanosheets, which are often applied in fabricating membranes. Next, the design and fabrication of MoS2-based membranes are systematically summarized in terms of nanoporous membranes, layer-stacked membranes, MoS2 composite membranes including MoS2-incorporated membranes, and membranes surface modification with MoS2. Then, we critically review the recent advancement about applications of MoS2-based membranes for water treatment and purification, focusing on desalination, industrial wastewater treatment, and antifouling properties. Finally, we discuss the existing challenges, future research efforts and opportunities of MoS2-based membranes. This work will be very valuable to understand the current state-of-the-art of MoS2-based membranes and will be helpful for developing other 2D based membranes for efficient and low-energy-consumption in water treatment and purification.
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