Development of high-performance mixed matrix reverse osmosis membranes by incorporating aminosilane-modified hydrotalcite

Cao, Zhen; Wang, Jian; Chen, Jiangrong; Wei, Yangyang

doi:10.1039/c9ra10826b

Cited by 12 publications

(2 citation statements)

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“…A rich variety of novel materials varied in their dimensions, structure, and functionalities have been engineered to render the desired properties for TFC membrane modifications, which led to a subclass of membranes known as thin-film nanocomposite (TFN). The nanomaterials can be feasibly introduced to the TFC through approaches such as direct dispersion during interfacial polymerization, [91][92][93][94] layer-by-layer assembly, [95,96] in situ assembly, [97] and grafting. [98] Characterized by their astonishing mechanical properties, some of these high-strength nanomaterials have also been explored as the free-standing or self-supporting ultrathin membranes.…”

Section: Membrane Developmentmentioning

confidence: 99%

Energy Efficient Seawater Desalination: Strategies and Opportunities

2021

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With the change in climate patterns, rapid industrialization, and population growth, the increasing water and energy demand became a major concern in the past decades. Desalination has been touted as the answer to the global water crisis, due to its capability in producing high‐quality fresh water from saline water. The continual research and innovations in the desalination field have resulted in the commercialization of large‐scale desalination in many water scarce regions. In the energetic context, all desalination processes are energy intensive. With the necessity to make desalination a more affordable and sustainable process, the energy efficiency of desalination is becoming an important topic. Herein, it is aimed to provide insights into the recent efforts and strategies established to tackle the energy‐related issues of both, thermal‐based and membrane‐based desalination processes. Depending on the principle of various commercial and emerging desalination processes, the directions of energy efficiency improvements, which include operating condition optimization, high‐performance material development, and renewable energy exploitation are discussed. The ideas and strategies reviewed herein, whether in their implementation or theoretical stage, are expected to provide insights into the possible improvement for application in commercial desalination plants.

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Section: Membrane Developmentmentioning

confidence: 99%

Energy Efficient Seawater Desalination: Strategies and Opportunities

2021

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“…The membrane processes for the reverse osmosis (RO) technology using one of the membranes welding in terms of driving force are high pressure thrust, as well as microfiltration (MF), ultrafiltration (UF), and piezodialysis [ 17 ]. Membrane performance in RO systems is the top choice by the water-treatment industry leaders due to low-energy consumption; application under normal conditions; ease to be combined (hybridized) with other operations; requiring no optional additives; simple and compact membrane module design specifications; and ease of utilizing in its operation [ 18 , 19 ]. For example, two studies by Zhang [ 20 , 21 ] reported that the use of rotating graphene nanoporous membranes with pores of diameter 2 to 4 nanometers successfully performed almost 100% salt rejection by using the RO system.…”

Section: Ro Membranes In Desalination Technologies and Their Novelmentioning

confidence: 99%

Environmental Performance of Small-Scale Seawater Reverse Osmosis Plant for Rural Area Water Supply

et al. 2021

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Seawater desalination is an alternative technology to provide safe drinking water and to solve water issues in an area having low water quality and limited drinking water supply. Currently, reverse osmosis (RO) is commonly used in the desalination technology and experiencing significant growth. The aim of this study was to analyze the environmental impacts of the seawater reverse osmosis (SWRO) plant installed in Kampung Pantai Senok, Kelantan, as this plant was the first installed in Malaysia. The software SimaPro 8.5 together with the ReCiPe 2016 database were used as tools to evaluate the life cycle assessment (LCA) of the SWRO plant. The results showed that the impact of global warming (3.90 kg CO2 eq/year) was the highest, followed by terrestrial ecotoxicity (1.62 kg 1,4-DCB/year) and fossil resource scarcity (1.29 kg oil eq/year). The impact of global warming was caused by the natural gas used to generate the electricity, mainly during the RO process. Reducing the environmental impact can be effectively achieved by decreasing the electricity usage for the seawater desalination process. As a suggestion, electricity generation can be overcome by using a high-flux membrane with other suitable renewable energy for the plant such as solar and wind energy.

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Membrane Technology

Ray

2023

Encyclopedia of Polymer Science and Technology

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Separation by membranes in chemical and allied industries has been of prime importance in the last few decades because of its low energy requirement and environment friendly process. In the last two decades, there has been significant development of this novel separation technology in academic research and industrial applications. Several new membranes such as new kinds of thin film composite membranes, nanocomposite membranes, metal–organic framework membranes, mixed matrix membranes, polyelectrolyte membranes, graphene and carbon nanotube‐based membranes, polymer inclusion membranes, and new kinds of liquid membranes have been developed for applications in reverse osmosis, nanofiltration, ultrafiltration, microfiltration, pervaporation, gas separation or facilitated transport with liquid membranes. Membranes based on functional polymers and composites of polymer and ceramic materials have shown significant improvement in flux, selectivity, or salt rejection. This article discusses elaborately on the basic principles of membrane separation, types of membranes/modules, synthesis, and characterization of new membrane materials with citation of recent works on this novel separation process.

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Development of high-performance mixed matrix reverse osmosis membranes by incorporating aminosilane-modified hydrotalcite

Abstract: Thin film nanocomposite reverse osmosis membranes were prepared by dispersing 3-aminopropyltriethoxysilane modified hydrotalcite in aqueous solution and incorporating the nanoparticles in polyamide layer during interfacial polymerization process.

Cited by 12 publications

References 50 publications

Energy Efficient Seawater Desalination: Strategies and Opportunities

Energy Efficient Seawater Desalination: Strategies and Opportunities

Environmental Performance of Small-Scale Seawater Reverse Osmosis Plant for Rural Area Water Supply

Membrane Technology

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