CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Lan Ding,Fenghua Bai,Burenbayaer Borjigin,Yuning Li,Huiqin Li,Xiaojing Wang
Solar-energy-driven CO 2 conversion into valuable chemical fuels holds great renewable potential. However, most photocatalysts' weak CO 2 adsorption limits more artificial photosynthesis for further utilization. Herein, we present an in situ assembling approach to produce stable Cs 2 AgBiBr 6 /Ce-UiO-66-H composite, in which a tight contact interface between the two participated components was constructed. Benefiting from the photocatalytic properties and high adsorption capacity for CO 2 , the optimized 20Cs 2 AgBiBr 6 /Ce-UiO-66-H adsorption-photocatalyst exhibits outstanding performance for reductive CO 2 deoxygenation with considerable CO generation rate (309.01 μmol g −1 h −1 ) under simulated solar light irradiation with 300 W Xe lamp, which is about 2.1 and 2.7 times than that of pure Cs 2 AgBiBr 6 and Ce-UiO-66-H, respectively. The excellent catalytic conversion of CO 2 is ascribed to the effective solar harvest and quickly photo-excited carriers’ separation in such assembled architecture. Importantly, due to the in-situ synthesis, Cs 2 AgBiBr 6 QDs are intercalated in the Ce-UiO-66-H frameworks and it could lead to improved stability and induce abundant oxygen vacancies in Cs 2 AgBiBr 6 /Ce-UiO-66-H, which can maintain unchangeable CO 2 conversion rate under wet air with consecutive ten hours of the recycling test. In this work, the combining metal–organic frameworks and lead-free halide perovskite provide great potential for artificial photocatalytic CO 2 -to-CO conversion under a mild gas–solid reaction condition via utilizing solar energy.
研究领域:
材料科学
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环境科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Yifan Wang,Qing Chang,Chaorui Xue,Jinlong Yang,Shengliang Hu
A purely chemical method is demonstrated to treat a variety of biomass wastes for extracting cellulose nanofibrils (CNFs) with a consistent property. By hydrothermal reaction, carbon dots (CDs) can be easily grafted on the surface of CNFs to act as photo-thermal agents and enable fast water evaporation rate at 2.5 kg m −2 h −1 with about 96.45% solar-to-vapor efficiency under one sun irradiation. This derives from good hydration ability of this system, which lowers the evaporation enthalpy. Moreover, this system not only adsorbs dye contaminants effectively by the formation of hydrogen bonds, but also possesses long-term antifouling solar desalination by means of rationally drilled millimeter-sized channels. Given the sustainable biomass resources and scalable fabrication process, this work offers a promising strategy towards construct low-cost evaporators with the excellent water purification performance.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Technology
·
2023
·Vol. 11
·期 10
·2300531
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IF 3.8
Lianjie Li,Ye Jia,Ke Zeng,Zhen He,Jianqiang Xue,Anmin Liu,Tingli Ma,Liguo Gao
The solar-driven interfacial evaporation system has attracted much attention in recent years due to its reduced heat loss and accelerated steam generation. As a low-cost and readily available resource, wood is widely applied as photothermal materials in solar-driven interfacial evaporation system because of its superior water transfer and heat loss prevention properties. Herein, a simple, mild, and cost-effective method is employed to fabricate wood-based photothermal materials. The results demonstrate that the solar absorption rate of wood-nigrosine is more than 97.5% across a wide wavelength range (200–2500 nm), and an evaporation rate of 1.46 kg m −2 h −1 and evaporation efficiency (86.1%) are achieved under 1-sun illumination (100 mW cm −2 ). The solar-driven interfacial evaporation system based on wood-nigrosine exhibits strong structural stability and processing capability for dyes and seawater.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2024
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IF 6.3
Zebo Wu,Dan Liu,Wenhao Wang,Hongtong Xie,Xianghui Chen,Huibin Yin
Magnetized wood (M–W) has been proposed to be used as an absorber in solar-driven interfacial evaporation. The M−W could gain an evaporation rate of 1.46 kg m −2 h −1 under the combined effect of sunlight and magnetic fields, which is 27 % higher than carbonized wood (C–W). To explore the mechanism, they were subjected to SEM, XPS, and water contact angle tests. It is revealing that M−W forms much more microchannels for steam diffusion. The M−W shows 97 % optical absorption within the whole wavelength, while the C–W is lower than 85 %, revealing the M−W can gather most of the solar radiation. Finally, the permeability coefficients of carbonized and magnetized woods are calculated by the CFD model. The permeability coefficient of the M−W is 20 % higher than the C–W, which can be attributed to Fe 3 O 4 nanoparticles disturbing the steam growth in the magnetic field, hence decreasing the thickness of the liquid film covering the bubbles and improving the solar evaporation rate.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Tianyi Xu,Penglin Lu,Jinhao Xu,Zhen Li,Shanshan Guan
The utilization of solar-driven photothermal evaporators for desalination offers a highly attractive solution to address the current global freshwater shortage, necessitating the development of scalable and efficient interfacial solar evaporators. In this study, we successfully fabricated a cost-effective Janus evaporator using bio-based chitosan (CS) and epoxidized natural rubber (ENR) latex (CS@ENR) aerogel by controlling single-sided deposition of polypyrrole (Ppy) through in-situ polymerization, followed by subsequent modification with hydrophobic polydimethylsiloxane (PDMS). The PP-CS@ENR (PDMS/Ppy-CS@ENR) aerogel presented high light absorption (95 %) and excellent photothermal conversion capacity (up to 67.7 °C) in the full solar spectrum. The water evaporation rate of the Janus PP-CS@ENR under one sun illumination was 2.16 kg·m −2 ·h −1 , with a superior photothermal conversion efficiency of 91 %. Moreover, the evaporator exhibits exceptional recycling capability and demonstrates a consistent water evaporation rate ≥ 2.0 kg·m −2 ·h −1 after 14 days of continuous evaporation cycles. The daily production of desalinated water under outdoor solar condition is 14.8 kg per square meter (over an 8-hour period), which adequately satisfies the drinking requirements of seven adult individuals. Therefore, these advantage properties of the PP-CS@ENR biomass-based Janus evaporator enable its versatile applications in solar-driven interfacial evaporation systems.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Renjie Ding,Jinhua Xiong,Qian Yan,Pengyang Li,Xu Zhao,Zhong Chen,Zonglin Liu,Huanxin Lian,Zhigong Tang,Shanyi Du,Qingyu Peng,Xiaodong He
Solar-driven water purification has become a promising way to overcome the freshwater crisis because of its environmentally-friendly features. Improving the evaporation rate and evaporation efficiency are eternal topics. In this work, we redesign the solar-driven vapor generation (SVG) device and a unique in-plane temperature gradient is established due to the oriented water transportation. The input energy is maximized and the superb evaporation rate of 6.40 kg m −2 h −1 with an efficiency of 243.8 % is achieved. By investigating the hydration state in NaCl solution and aqueous acid, the interaction mechanism between hydrated ions and non-woven fabrics is developed. Owing to the increased intermediate water proportion, the evaporation rate of the SVG device in 5 wt% NaCl solution can reach 6.38 kg m −2 h −1 , which is almost the same as that in DI water. Moreover, the unique reversible doping properties make the non-woven fabrics a reusable and stable volatile acid purifier. The evaporation rate in pH = 4.0 aqueous acid can be enhanced to 6.75 kg m −2 h −1 , while the generated water maintains a pH higher than 6.5. Our work provides a new perspective for designing high-efficiency and multifunctional SVG devices.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Communications Materials
·
2024
·Vol. 5
·期 1
·1-8
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IF 7.5
Cui Lingfang,Che Huinan,Liu Bin,Ao Yanhui
Solar-driven interfacial water evaporation shows great potential to address the global water crisis, but its efficient implementation in the presence of organic wastewater remains challenging. Here, we achieved integrated water evaporation and organic compound degradation by designing a multifunctional MoS 2 membrane. Under 1.0 sun irradiation, the membrane exhibits an evaporation rate of 2.07 kg m −2 h −1 and 82% degradation efficiency of organic pollutants, with negligible organic pollutant residues in the condensate. The high performance is attributed to the thermal energy generated by the evaporation process of MoS 2 membrane. This promotes an increase in the rate constant of interfacial electron transfer during the photocatalytic reaction, accelerating the generation of free radicals and facilitating the removal of organic pollutants. The study demonstrated that fresh water can be collected from high-salinity wastewater at a rate of 1.56 kg m −2 h −1 . The MoS 2 membrane provides a sustainable approach to addressing the water crisis.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
·
IF 13.3
Qibin Zhu,Long Chen,Yun Da
The Calcium looping thermochemical reaction directly driven by solar energy effectively addresses the problem of efficient energy storage of concentrated solar power plants (CSP) by shortening the energy conversion path. But new requirements are put forward for energy storage materials, including high solar radiation absorption, high cycling stability and fast kinetics. To meet these challenges, we have designed porous microsphere structures for the purpose of enhancing mass transfer and the capture of solar radiation. Additionally, Zr and Mn oxides with elevated Tammann temperatures were incorporated to stabilize the morphology and prevent sintering. The synthesized porous microspheres retained abundant mesoporous channels on the surface even after undergoing 20 cycles. The addition of Mn oxide significantly enhances solar spectral absorptivity, achieving an impressive 82.88 % absorbance. The incorporation of Mn and Zr oxides increased the sintering resistance, specific surface area and porosity of CaO/CaCO 3 , especially in the 10–100 nm range, which accelerated the CO 2 transport during carbonation. These enhancements significantly improve the chemical control stage of the carbonation reaction, as further supported by kinetic models. After 50 cycle experiments at 800 °C, the energy storage density of the sample remains at 1074 kJ/kg, which is 1.86 times that of the undoped CaCO 3 . This study provides a new way to design CaCO 3 materials suitable for CSP applications.
研究领域:
材料科学
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可再生能源
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xin Xiong,Naila Arshad,Junyang Tao,Najah Alwadie,Gang Liu,Liangyou Lin,M.A.K Yousaf Shah,Muhammad Sultan Irshad,Jingwen Qian,Xianbao Wang
Desalination processes frequently require a lot of energy to generate freshwater and energy, which depletes resources. Their reliance on each other creates tension between these two vital resources. Herein, hierarchical MXene nanosheets and bismuth vanadate (Ti 3 C 2 /BiVO 4 )-derived microcapsules were synthesized for a photothermal-induced photoredox reaction for twofold applications, namely, solar-driven water evaporation and hydrogen (H 2 ) production. For this purpose, flexible aerogels were fabricated by introducing Ti 3 C 2 /BiVO 4 microcapsules in the polymeric network of natural rubber latex (NRL-Ti 3 C 2 /BiVO 4 ), and a high evaporation rate of 2.01 kg m −2 h −1 was achieved under 1-kW m −2 solar intensity. The excellent performance is attributed to the presence of Ti 3 C 2 /BiVO 4 microcapsules in the polymeric network, which provides balanced hydrophilicity and broadband sun absorption (96 %) and is aimed at plasmonic heating with microscale thermal confinement tailored by heat transfer simulations. Notably, localized plasmonic heating at the catalyst active sites of the Ti 3 C 2 /BiVO 4 heterostructure promotes enhanced photocatalytic H 2 production evolved after 4 h of reaction is 9.39 μmol, which is highly efficient than pure BiVO 4 and Ti 3 C 2 . This method turns the issue of water–fuel crisis into a collaborative connection, presenting avenues to collectively address the anticipated demand rather than fostering competition.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Rongrong Du,Hongyang Zhu,Shuo Wang,Hongyao Zhao,Mengting Liu,Yanyun Wang,Yiyan Song,Fu Yang
Photothermal nanomaterials have showed great potential for development in simultaneous pollutant purification and freshwater recovery. In this study, a novel composite composed of hollow N-doping SiC porous hybrid network with the integration of CoCu bimetal species was constructed by a simple self-assembly and temperature-modulated approach. Such a hollow porous hybrid nanoreactor is endowed with abundant synergetic CuCo bimetallic reactive sites and polar pyrrolic N sites, which improves the enrichment of pollutants and intermetallic redox pairs. Ultrafine nanocrystals corresponding to Co 2 SiO 4 over the hybrid framework can be evidenced by HRTEM technique. The experimental results showed that the optimal CoSiCu-6 degraded norfloxacin (NFX) by 90.7% in 10 min with a pseudo-first-order rate constant of 0.493 min −1 , which was about 6.49 folds enhancement compared to Cu-free CoSi-6 counterparts, achieving a low reaction activation energy (18.02 kJ mol −1 ) during the reaction. Control experiments including anion interference and broad applicability for pollutants degradation were further explored, emphasizing the excellent performance of CoSiCu-6 in the practical contaminant removal. The mechanism study showed that, single linear oxygen ( 1 O 2 ) coupled with electron-transfer process work as the main activation routes dominating the degradation process. In addition, Co 3+ /Co 2+ /Cu 2+ redox pairs and oxygen vacancies (O v ) play a key role in the PMS activation process. The obtained optimal catalyst was further explored for solar-driven photothermal interfacial water evaporation, showing a rational cleanwater recovery efficiency (∼1.3 kg m −2 h −1 ) from the polluted wastewater. In addition, monolith floatable evaporator was constructed by anchoring CoSiCu-6 onto a tailored melamine sponge foam via a calcium ion-triggered sodium alginate cross-linking strategy, affording an excellent evaporation performance (2.16 kg m −2 h −1 ) and coupled norfloxacin degradation efficiency (93.6%, within 5 min). This innovative monolithic evaporator made of CoCu integrated SiC hybrid nanosphere has a powerful dual function of rapidly degrading pollutants and facilitating solar-powered regeneration of contaminated wastewater due to its unique hollow porous structure and the CoCu bimetallic synergistic action that provides a rich set of reaction sites, which is promising for the treatment of complicated wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS ES&T Engineering
·
2025
·
IF 6.7
Shuai Peng,Longqian Xu,Shihai Deng,Chengsi Hou,Yue Wang,Zuofeng Chen,Zhendong Lei,Deli Wu
Flexible water management textiles can achieve effective liquid-thermal evaporation by harvesting exogenous heat. However, existing textiles exhibit limited evaporation capacity and cooling efficiency due to undesirable water-heat transport structures. Inspired by the human skin’s efficient heat dissipation mechanism through sweat evaporation, we propose an integrated multiheat source evaporation module concept. The interpenetrating structure of disperse fibers and porous conductive pores endows this material with synergistically enhanced radial water diffusion rate and thermal energy transmission efficiency, as validated by the infrared droplet diffusion tests and solute diffusion models. Compared to traditional nonwoven fabric, the integrated evaporation module-3 exhibits stable and lower “rebound low temperature values” in 120 consecutive evaporation cycles, with a peak temperature difference of 5.43 °C. The performance efficiency per unit of water evaporation is increased by over 100%, and the thermal diffusion coefficient along the thickness gradient is increased by 20 times. By integrating reduced graphene oxide photothermal conversion media, the device is entirely driven by solar thermal energy, achieving an evaporation rate of ∼1.45 kg m–2 h–1. Notably, dynamic temperature difference tracking tests validate the potential of this integrated structure in solar-driven multistage passive evaporation systems and its flexibility for deployment on complex heater surfaces (such as human skin). We anticipate that the integrated module concept will provide promising design guidelines for next-generation high-efficiency multiheat source management components.
CAS / MDL:
研究领域:
材料科学
·
热能工程
·
纺织科学
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2025
·
IF 9.8
Tongyao Wu,Shiqiang Liang,Qindong Wang,Xinyue He,Chi Wang,Zhi Geng,Zhongmin Su
With the in-depth implementation of green and low-carbon development principles, substantial progress has been achieved in water recycling and resource recovery technologies. However, the high energy consumption of current high salinity metal-laden wastewater treatment technologies continues to conflict with sustainable development goals, highlighting the need for innovative processes that leverage clean energy for wastewater regeneration and resource recovery. Here, we present a novel solar-driven membrane distillation and forward osmosis coupled system (SDOS), that integrates photothermal and photoelectric properties of solar to achieve both pure water regeneration and metal recovery from metal-laden wastewater, alongside electricity generation. SDOS consists of three core chambers: a feed solution chamber containing metal-laden wastewater, a draw solution chamber with Na 2 -EDTA solution, and a permeate solution chamber filled with low-temperature deionized water. The titanium dioxide/graphitic carbon nitride (TiO 2 /g-C 3 N 4 ) photoanode is positioned within the draw solution chamber, while the carbon fiber cathode resides in the feed solution chamber. A forward osmosis (FO) membrane separates the feed and draw solution chambers, and a carbon nanotube-polyvinylidene fluoride (CNT-PVDF) membrane divides the draw and permeate solution chambers, establishing a fully integrated SDOS. Under solar irradiation, SDOS demonstrated a pure water regeneration rate of 0.81 L m −2 h −1 and a copper recovery rate of 5.9 mg h −1 cm −2 , achieving a peak power output density of 820 mW m −2 . This study introduces the SDOS, a novel approach for the efficient and stable extraction of pure water from metal-laden wastewater using solar energy. The system achieves a salt rejection rate exceeding 99 % while concurrently enabling metal resources recovery and electricity generation. By integrating resource utilization with energy recovery, the SDOS provides a transformative solution for sustainable wastewater treatment.
研究领域:
环境科学
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能源技术
·
水资源管理
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）