ORCID Profile
0000-0002-4761-4670
Current Organisation
University of Technology Sydney
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Publisher: Elsevier BV
Date: 05-2019
DOI: 10.1016/J.JCIS.2019.02.093
Abstract: In this study, we demonstrated the influence of adding nanofiltration membranes to a CDI cell, when desalinating mono- and alent salt solutions both theoretically and experimentally, and proposed a new procedure for the separation of mono- and alent ions. It is revealed that the distinction of the diffusion coefficient between mono- and alent ions is the key to the effective separation. Combined with the appropriate time of adsorption (1.5 h), the concentration ratio of NaCl to MgSO
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1MA00894C
Abstract: Hydrogel-based solar water purification technology has been recognized as a promising alternative to existing energy-intensive technologies. This is a timely review of the recent 3 years, focusing on design principles and remaining challenges.
Publisher: Wiley
Date: 14-06-2023
Abstract: Atmospheric water harvesting (AWH) has been recognized as a next‐generation technology to alleviate water shortages in arid areas. However, the current AWH materials suffer from insufficient water adsorption capacity and high‐water retention, which hinder the practical application of AWH materials. In this study, we developed a novel dual‐layered hydrogel (DLH) composed of a light‐to‐heat conversion layer (LHL) containing novel polydopamine‐manganese nanoparticles (PDA−Mn NPs) and a water adsorption layer (WAL) made of 2‐(acryloyloxyethyl) trimethylammonium chloride (AEtMA). The WAL has a strong ability to adsorb water molecules in the air and has a high‐water storage capacity, and the PDA−Mn NPs embedded in the LHL have excellent photothermal conversion efficiency, leading to light‐induced autonomous water release. As a result, the DLH displays a high‐water adsorption capacity of 7.73 g g −1 under optimal conditions and could near‐quantitatively release captured water within 4 h sunlight exposure. Coupled with its low cost, we believed that the DLH will be one of the promising AWH materials for practical applications.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2TA08317E
Abstract: By selecting appropriate polymer precursors, we developed a novel cryogel solar vapor generator for seawater desalination with high intermediate water content for lower evaporation enthalpy and interconnected macropores for rapid water replenishment.
Publisher: Elsevier BV
Date: 03-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3TA05278H
Publisher: Elsevier BV
Date: 02-2019
DOI: 10.1016/J.JCIS.2018.10.063
Abstract: Capacitive deionization (CDI) is a simple, cost-efficient and environmentally-friendly method for brackish water desalination. In order to improve the desalination performance, the inner structures of the porous electrodes should provide more space for ion storage and transportation. Therefore, we utilized an efficient method to synthesize porous graphene electrodes based on the technique of pressurized oxidation and CO
Publisher: Elsevier BV
Date: 06-2022
Publisher: Wiley
Date: 08-11-2022
Abstract: Solar steam generator (SSG) systems have attracted increasing attention, owing to its simple manufacturing, material abundance, cost‐effectiveness, and environmentally friendly freshwater production. This system relies on photothermic materials and water absorbing substrates for a clean continuous distillation process. To optimize this process, there are factors that are needed to be considered such as selection of solar absorber and water absorbent materials, followed by micro/macro‐structural system design for efficient water evaporation, floating, and filtration capability. In this contribution, we highlight the general interfacial SSG concept, review and compare recent progresses of different SSG systems, as well as discuss important factors on performance optimization. Furthermore, unaddressed challenges such as SSG's cost to performance ratio, filtration of untreatable micropollutants/microorganisms, and the need of standardization testing will be discussed to further advance future SSG studies.
Publisher: IWA Publishing
Date: 02-2020
DOI: 10.2166/WST.2020.124
Abstract: Constructing new cation exchange membranes (CEM) has been regarded as an easy and effective approach to improving the capacitive deionization (CDI) system. In this study, a new method of fabrication of CEM was introduced by crosslinking sulfosuccinic acid (SSA) and citric acid (CA). The SSA and CA were crosslinked with polyvinyl alcohol (PVA) to fabricate CEMs in a series of conditions. The ion transference number for each fabricated membrane was tested to select the optimal recipe. The membrane fabricated by the selected method was then tested in the CDI system and the results show that the total percentage of SSA could be reduced from 5% to 1% by adding 5 g of non-toxic and inexpensive CA. The cost of preparing the membrane also decreased from US$0.18 per square meter to US$0.03. The adsorption capacity and the charge efficiency of membrane capacitive deionization system (MCDI) coated with a PVA/SSA/CA layer (mass ratio 10:1:5) was compared with the normal CDI and the MCDI coated with the original membrane (PVA:SSA = 19:5), which is named O-MCDI). The results show that with the modified membrane, the adsorption capacity and the charge efficiency can be enhanced by 18% and 28% compared with the CDI. In addition, although the cost is reduced, the desalination efficiency is still guaranteed. The adsorption capacity and charge efficiency are still increased by about 3% compared with the O-MCDI.
No related grants have been discovered for Shudi Mao.