Advances in graphene oxide membranes for water treatment

Jia, Fengchun; Xiao, Xiao; Nashalian, Ardo; Shen, Sophin; Yang, Lijun; Han, Zhenyang; Qu, Huaijiao; Wang, Tianmei; Liu, Yang; Zhu, Zhijun; Huang, Linjun; Wang, Yanxin; Tang, Jianguo; Chen, Jun

doi:10.1007/s12274-022-4273-y

Cited by 98 publications

(33 citation statements)

References 165 publications

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“…Even though 70% of the Earth’s surface area is covered by water, freshwater only accounts for 2.7% of it, and less than 1% of the freshwater resources are available to the global population. Water crisis was further exacerbated by the industry’s rapid development. − Consequently, the urgent need for clean drinking water has induced widespread research interest in water treatment processes. − In recent years, nanofiltration membranes with ultrafast molecular transmission rates have developed rapidly . Two-dimensional (2D) materials based ultrathin membrane composed of two-dimensional (2D) materials with molecular selective nanochannels are one of the most promising candidates for water treatment.…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide Nanofiltration Membrane Based on Three-Dimensional Size-Controllable Metal–Organic Frameworks for Water Treatment

Xiao

Han

et al. 2022

ACS Appl. Nano Mater.

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Water pollution has long been a threat to human sustainability, and the development of nanofiltration membrane materials for water treatment is receiving increasing attention. Graphene oxide (GO) nanomaterials have demonstrated their widespread applicability in molecular separation and water purification technologies in recent years. However, the separation performance of the GO membrane (GOM) will decrease with long-term humidity. In this paper, we report a zeolite imidazole framework-8 (ZIF-8) nanoporous material embedded in a GOM, namely, GOZMs. After the positively charged ZIF-8 is compounded with GO, the separation and permeability of the composite nanofiltration membrane significantly improve, and it can remain stable during the long-term permeation process. Besides, four different ZIF-8 sizes were successfully prepared to investigate the effects of different porous particle sizes on composite nanofiltration membranes. The water permeability of the composite nanofiltration membrane increases monotonically with the increase of the ZIF-8 particle size, reaching 136.4 L m–2 h–1 bar–1, which is about 6 times higher than that of the pure GOM. The composite nanofiltration membrane exhibits decent dye screening performance while ensuring high water permeability. The rejection of rhodamine B and methylene blue was close to 100%, and the rejection of methyl orange was consistently lower. Therefore, the successful preparation of GOZMs paves a unique way for designing and developing novel nanofiltration membranes for water treatment and dye separation.

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Section: Introductionmentioning

confidence: 99%

Graphene Oxide Nanofiltration Membrane Based on Three-Dimensional Size-Controllable Metal–Organic Frameworks for Water Treatment

Xiao

Han

et al. 2022

ACS Appl. Nano Mater.

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“…Despite the good success in the membrane filtration technology, some difficulties and drawbacks [ 197 , 198 , 199 , 200 , 201 ] still need to be studied and discussed. The main drawbacks that limit their application at large scale are membrane fouling [ 200 ], membrane choking, and, finally, membrane crumbling.…”

Section: Go–metal Oxide Nanocomposite Tailoring For Enhanced Water Pu...mentioning

confidence: 99%

“…Among these, membrane fouling is the real beginning of the problem [ 200 ]. The invasion of bacteria and, further, their colonization on the membrane surface leads to the formation of a microbial biofilm [ 198 ], clogging the membrane pores and blocking and restricting the water flow through it [ 199 ]. Furthermore, once the microbial biofilm is formed, it becomes quite difficult to remove it.…”

Section: Go–metal Oxide Nanocomposite Tailoring For Enhanced Water Pu...mentioning

confidence: 99%

“…Furthermore, once the microbial biofilm is formed, it becomes quite difficult to remove it. As a result, a large amount of cleaning agents are used, which increase the operation and maintenance costs [ 198 , 199 , 200 ]. Numerous research groups have tried different technologies to fabricate the membrane, viz; interfacial polymerization, track-etching, coating, stretching, phase inversion, and electro-spinning for the modification and improvement of the membrane surfaces, but it still requires a lots of improvement [ 202 , 203 , 204 , 205 ].…”

Section: Go–metal Oxide Nanocomposite Tailoring For Enhanced Water Pu...mentioning

confidence: 99%

“…The second challenge is the aggregation of the GO–metal oxide nanomaterials on the membrane surfaces, which diminishes the active surface area, the porosity, and the overall performance of the membrane. Over the last two decade or so, many research [ 197 , 198 , 199 , 200 , 201 , 202 ] groups have made attempts to remove this challenge by making alterations in the synthesis of graphene oxide–metal oxide nanomaterial and decorated it on the polymeric membranes with different methods [ 201 , 202 , 203 , 204 , 205 ].…”

Section: Challenges and Futuristic Aspectsmentioning

confidence: 99%

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Synthesis of Graphene-Based Nanocomposites for Environmental Remediation Applications: A Review

et al. 2022

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The term graphene was coined using the prefix “graph” taken from graphite and the suffix “-ene” for the C=C bond, by Boehm et al. in 1986. The synthesis of graphene can be done using various methods. The synthesized graphene was further oxidized to graphene oxide (GO) using different methods, to enhance its multitude of applications. Graphene oxide (GO) is the oxidized analogy of graphene, familiar as the only intermediate or precursor for obtaining the latter at a large scale. Graphene oxide has recently obtained enormous popularity in the energy, environment, sensor, and biomedical fields and has been handsomely exploited for water purification membranes. GO is a unique class of mechanically robust, ultrathin, high flux, high-selectivity, and fouling-resistant separation membranes that provide opportunities to advance water desalination technologies. The facile synthesis of GO membranes opens the doors for ideal next-generation membranes as cost-effective and sustainable alternative to long existing thin-film composite membranes for water purification applications. Many types of GO–metal oxide nanocomposites have been used to eradicate the problem of metal ions, halomethanes, other organic pollutants, and different colors from water bodies, making water fit for further use. Furthermore, to enhance the applications of GO/metal oxide nanocomposites, they were deposited on polymeric membranes for water purification due to their relatively low-cost, clear pore-forming mechanism and higher flexibility compared to inorganic membranes. Along with other applications, using these nanocomposites in the preparation of membranes not only resulted in excellent fouling resistance but also could be a possible solution to overcome the trade-off between water permeability and solute selectivity. Hence, a GO/metal oxide nanocomposite could improve overall performance, including antibacterial properties, strength, roughness, pore size, and the surface hydrophilicity of the membrane. In this review, we highlight the structure and synthesis of graphene, as well as graphene oxide, and its decoration with a polymeric membrane for further applications.

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Recent Advances in Stimuli‐Responsive Smart Membranes for Nanofiltration

Xiao

Shokoohi

et al. 2022

Adv Funct Materials

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Nanofiltration membrane plays an increasingly important role in many industrial applications, such as water treatment and resource recovery. The performance of the smart nanofiltration membrane is largely controlled by pore size, the Donnan effect, and surface wettability, which are determined by the function of stimuli‐responsive components. Smart membranes, which contain stimuli‐responsive components, are capable of changing their physical and chemical properties in response to changes in the environment so that the microstructure of the membrane will have more efficient performances and broader application prospects than the current traditional nanofiltration membranes. Herein, the preparation methods of stimuli‐responsive membranes are described and they are systematically classified accordingly to their mechanisms. Moreover, the latest progress of stimuli‐responsive membranes in nanofiltration and the main mechanism of each stimuli‐response type through relevant examples are discussed and summarized. Finally, this review provides new insights into the remaining challenges and future directions of stimuli‐responsive membranes. Fueled by advances in chemistry and materials science, it is expected to build a smart and efficient nanofiltration membrane platform for the benefit of mankind.

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Advances in graphene oxide membranes for water treatment

Cited by 98 publications

References 165 publications

Graphene Oxide Nanofiltration Membrane Based on Three-Dimensional Size-Controllable Metal–Organic Frameworks for Water Treatment

Graphene Oxide Nanofiltration Membrane Based on Three-Dimensional Size-Controllable Metal–Organic Frameworks for Water Treatment

Synthesis of Graphene-Based Nanocomposites for Environmental Remediation Applications: A Review

Recent Advances in Stimuli‐Responsive Smart Membranes for Nanofiltration

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