SURFACE & COATINGS TECHNOLOGY
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2024
·
IF 5.3
Bao Guo,Hongjun Kang,Xinzhi Wang,Yitong Duan,Xiaotong Li,Baiqi Gao,Zhiqiang Wang,Yang Li,Songtao Lu,Xiaohong Wu
Addressing the issue of dust deposition on photovoltaic (PV) panels is of profound scientific significance and practical value for enhancing PV power generation. Transparent superhydrophobic coating is expected to be applied in the self-cleaning of PV panels. However, developing the transparent superhydrophobic dust removal coatings remains a challenge. Herein, we developed a highly transparent F-SiO 2 coating with dual self-cleaning and dust removal functions, composed of polydimethylsiloxane (PDMS) and SiO 2 . The coating demonstrates a high transmittance of 97 %. After self-cleaning and dust removal tests, conversion efficiency of F-SiO 2 coated PV decreased by only 0.03 % and 0.01 %, respectively, demonstrating excellent self-cleaning and dust removal performance. Additionally, the F-SiO 2 exhibits high stability. Mechanism analysis of dust removal performance reveals that the decreased effective dielectric constant from the porous structure and the reduced actual contact area between the particles and the superhydrophobic surface, thereby effectively reduces the van der Waals force between dust and coating. This work provides a novel strategy to prepare self-cleaning and dust removal coatings on PV cover plate.
研究领域:
材料科学
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能源技术
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Linfeng Miao,Shaopeng Pang,Xuetao Wang,Mengjie Liu,Yu Huang,Jing Zhu,Zhongli Ji
Different drying methods were used to prepare catalytic membranes for the simultaneous removal of dust and NO to explore their effect on the distribution of active components, with the structural properties, filtration performance, catalytic performance, and working mechanism of the preferred prepared catalytic membrane systematically investigated. The results indicated that microwave drying, in contrast to traditional electric drying with blasting, effectively inhibited the migration of the precursor solution to achieve uniform loading of active components, thus endowing the catalytic membrane with excellent catalytic activity. Meanwhile, the pore structure of the fibrous ceramic substrate was not almost affected by the loaded catalyst and still exhibited high porosity. These characteristics contributed to the development of a catalytic membrane with good filtration and catalytic performance, as well as superior adaptable NO concentration and filtration velocity properties. Therefore, fibrous ceramic-based catalytic membranes prepared using microwave assistance offer considerable application prospects for integrated purification of high-temperature flue gases. Furthermore, the removal of dust and NO was determined to follow the Eley–Rideal reaction mechanism and surface filtration mechanism of the residual dust cake, respectively.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Polymers
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2021
·Vol. 13
·期 12
·1986
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IF 4.329
Xuhan Ding,Guang Xu,Dengfei Wang,Zhenmin Luo,Tao Wang
The application of polymer colloids is a promising approach for bauxite residue dust pollution control. However, due to the existence of synergistic aging, the efficiency of colloid dynamic viscosity to predict the dust control performance of bauxite residue is unclear. Previous studies were also rarely performed under synergistic aging conditions. Thus, this paper investigates the relationship between colloids’ viscosity and dust control performance under synergistic aging modes. Results illustrated that the binary colloid achieved better dust control performance than unitary colloid for their higher viscosity and penetration resistance. For both unitary and binary colloid, higher viscosity results in better crust strength. A logarithmic relationship was found for viscosity and dust erosion resistance under unitary aging. However, Only the dynamic viscosity of colloids in solid-liquid two-phase conditions, rather than dissolved in deionized water, can effectively predict the dust control performance under synergistic aging conditions.Keywords:predictor;dust control performance;synergistic aging;orthogonal design;dynamic viscosity;penetration resistance
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Yanan Gao,Juncheng Liu,Beiping Dong
Dust on outdoor glass will significantly reduce glass transmittance in various applications and even damage solar cell panels. Here, the effects of Sb doping on the structure and photoelectric properties of a Sb-doped SnO 2 –SiO 2 (ATO-SiO 2 ) film prepared on a glass substrate with a sol-gel method and the dust removal performance of the resulting film were studied. The results show that the Sb-doped SnO 2 –SiO 2 film consists of a SnO 2 tetragonal rutile phase, but the doped Sb decreases the sample crystallinity. With an increase in the Sb doping concentration, two lattice parameters of the ATO-SiO 2 film, a and c , show “M"-shaped changes. The nanoparticle size first decreases and subsequently increases when the Sb doping concentration is over 6 mol%. The transmittance of the substrate glass coated with this film in the visible wavelength range (380–780 nm) decreases from 86.3% to 82.7%. The square resistance first decreases and subsequently increases, while the dust removal performance first increases and subsequently decreases. At a 12 mol% Sb doping concentration, the square resistance is minimal (4.64 × 10 6 Ω/□). The maximal dust removal performance is 64%.
研究领域:
材料科学
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光学工程
✓ 已验证
DOI
高影响因子
OPTIK
·
2021
·
IF 2.443
Beiping Dong,Yanan Gao,Juncheng Liu
High transmittance and strong dust-removing film has a broad potential application prospect in architectural glass, solar photovoltaic glass, automotive glass, etc. In this paper, SnO 2 is used as the antistatic agent, and SiO 2 as the matrix. The effects of Sn/Si molar ratio on the structure and properties of the SnO 2 -SiO 2 film prepared on quartz glass substrate with sol-gel dipping were studied. The film was analyzed by X-ray diffractometer (XRD), Fourier transform infrared (FTIR) spectroscopy and Scanning electron microscopy (SEM). Ultraviolet-Visible-Near Infrared Spectrometer (UV–VIS–NIR) and Hall effect instrument tested the photoelectric properties. Falling dust experiment was used to determine the film’s dust-removing property. The results show that the SnO 2 -SiO 2 film is composed of nano particles of SnO 2 tetragonal rutile phase and amorphous SiO 2 , and has antistatic dust-removing property. With the increase of Sn/Si molar ratio, the crystallization quality and average grain size of the film increases, while the square resistance decreases continuously. The visible transmittance fluctuates with an amplitude of no more than 1.2%, and obtained the minimum value 87.246% at Sn/Si molar ratio of 2:1. Moreover, the film’s dust-removing performance improves continuously, which obtained the best, 50%, at Sn/Si molar ratio of 2:1.
研究领域:
材料科学
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光学工程
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表面科学
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2025
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IF 6.3
Le Li,Xiaoxuan Yin,Haoyi Li,Yifei Liu,Binbin Cai,Yueru Wang,Jiawen Li,Songsong Zhou,Wenhua Wu,Yunpeng Liu
The unavoidable dust accumulation seriously degrades generating efficiency of photovoltaic (PV) panels. Recently, the electrostatic de-dusting method based on transparent conductive film (TCF) has become a research hotspot in the field of PV panel de-dusting. The de-dusting effect is closely related to the performance of the TCF. Considering the application scenario, this study prepared a single-walled carbon nanotubes (SWCNTs) TCF employing the rod coating method using polysilazane as a binder. Consequently, a comprehensive evaluation index of photoelectric properties K A was proposed. Performance evaluation and application tests of hydrophilic dustproof and electrostatic de-dusting were conducted. Besides, three types of artificial accelerated aging experiments and two types of mechanical durability tests were conducted on the SWCNTs TCFs to evaluate the changes in the performance of the films in the actual application environments of the PV panels. The experimental results showed that the K A of SWCNTs TCFs reached 0.89, the light transmittance reached 90.69 %, the sheet resistance was 0.23 MΩ/□, and the electrostatic de-dusting rate ( ω ) reached 97.91 %. The TCFs were also multifunctional with good hydrophilic properties, with a self-cleaning rate ( α ) of 94.38 % under natural rainfall conditions. Further, the SWCNTs TCFs also exhibited good adaptability to outdoor environment. After weathering tests other than abrasion resistance, K A was greater than 0.81, α was better than that for PV glass, ω was greater than 96.82 %. The results of this study are expected to provide effective support for the optimisation and innovation of de-dusting methods for PV panels and the further development of PV industry.
研究领域:
材料科学
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可再生能源
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光伏技术
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2025
·
IF 0
Xu Qian,Zheng Zhihong,Zhang Jingyun,Luo Jinjing,Chen Jianwen,Lai Zheng
A series of manganese-iron-based (MnFeOx) polytetrafluoroethylene (PTFE) catalytic filter materials were prepared by combining acid pretreatment and ultrasound-assisted coupling method to achieve simultaneous treatment of nitrogen oxides and dust. Surface acid pretreatment of the filter materials can improve PTFE’s surface roughness and provide more attachment sites for catalyst loading. The ultrasound-assisted coupling technology significantly improves the loading capacity of the catalyst and the bonding strength with the filter material. Compared to previous catalytic filter materials, the preparation of the optimal catalytic filter material in this study had achieved gratifying catalytic performance (NO conversion of 95% at 200 ℃) and could reach 99.95% filtration performance. In addition, the catalytic filter material also exhibited outstanding catalyst stability and mechanical properties of filter material, which made the catalytic filter material suitable for complicated working conditions. The functional integrated filter material has great significance for the collaborative treatment of multiple pollutants and could significantly benefit future development of air pollution control.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Xiangsen Xu,Jiangxiao Qiao,Shibo Yu,Jiahao Chen,Yiqing Zeng,Feng Zhang,Zhaoxiang Zhong,Weihong Xing
The rational design of catalysts and the establishment of uniform filter structure are key points in the development of high-performance catalytic filters. To resolve the issue of increased N 2 O concentration in catalysts with high vanadium content at high temperatures, a range of catalytic filters with low vanadium loading were fabricated by partially substituting vanadium in 6VWTi catalysts with transition metals (Mn, Cu, Co and Ce). The experimental results show that the introduction of Ce, which leads to rich surface-adsorbed reactive oxygen species, good redox properties and appropriate surface acidity, thus the 1V5CeWTi/SiC catalytic filter exhibits the highest denitration efficiency (NO conversion ＞90 % at the temperature of 300–500 °C without N 2 O production), presenting significant advantages in contrast to 1VWTi/SiC and 6VWTi/SiC. Furthermore, the preparation technology was optimized to obtain a more uniform structure, which enhanced NH 3 -SCR performance and reduced filter pressure drop. The optimized 1V5CeWTi/SiC also exhibited exceptional resistance to SO 2 + H 2 O and long-term stability for a duration of 200 h at 300 °C, as well as displays a noteworthy efficiency in filtering particulate matter (10 μm SiO 2 ). Therefore, the optimized 1V5CeWTi/SiC catalytic filter holds great potential in the realm of gas purification.
研究领域:
环境工程
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催化
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材料科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2020
·
IF 5.774
Qinfei Xu,Guibin Wang,Chunhui Xiang,Xin Cong,Xuzhao Gai,Shuling Zhang,Mei Zhang,Haibo Zhang,Jiashuang Luan
It has been proved that air filtration is the most effective solution to solve air pollution from the origin. However, as the core filter material in air filter bags, most of fiber materials are not able to maintain their basic performance under the condition of high temperature, high humidity and corrosion. Hence, creating such a new material used in harsh conditions for dust removal has proved to be extremely challenging. In this study, high-performance poly (ether ether ketone) (PEEK) fiber was developed to fabricate a PEEK nonwoven filter (PEEK NWF) which showed outstanding stability under sulfuric acid, sodium hydroxide and 250 °C high temperature conditions. Moreover, to capture more fine particles, PEEK NWF impregnated with PTFE emulsion (PEEK/PTFE) and ePTFE coated membrane PEEK (PEEK/ePTFE) filter with a sandwich structure were also constructed. PEEK NWF and PEEK/PTFE filters exhibited extremely low filtration resistance (10 Pa, 10.3 Pa) and higher quality factor (0.7036 Pa −1 , 0.8222 Pa −1 ). Compared with PEEK NWF and PEEK/PTFE filters, PEEK/ePTFE filter displayed higher filtration efficiency for fine particles, and its filtration efficiency for particles size of 2.5 μm increased from 72.09% to 98.5765% which was close to nanofiber membrane filtration efficiency. The results suggested that PEEK NWF as well as its composites filters could make them promising candidate materials used in harsh conditions for dust removal.
研究领域:
材料科学
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环境工程
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化学工程
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过滤技术
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产品关联
DOI
高影响因子
Journal of Sustainable Metallurgy
·
2022
·Vol. 8
·期 3
·1090-1103
·
IF 3.068
Jin Yonglong,Gao Lihua,He Zhijun,Sun Yujia
An economic and effective strategy synchronously utilizing blast furnace bag dust (BF-BD) and converter-removing dust (C-RD) by carbothermic reduction roasting is reported to achieve separation and recovery of iron and zinc. In this paper, the effect of operating parameters on the recovery rate and remove rate of Fe and Zn from BD and GD was initially studied by synergetic carbothermic roasting reduction. The optimized parameters include a reduction temperature pf 1200 °C, a reduction time of 90 min, a FC/O of 2.0, and a proportion of C-RD/BF-BD of 7:3, and the removal efficiency of Zn and metallization degree of Fe reached 98.35% and 90.58%, respectively. The phase transformation and stepwise reduction behavior of wüstite (ZnO) x (FeO) 1− x , spinel Zn x Fe 1− x Al 2 O 4 , olivine Zn x Fe 2− x SiO 4 , and gehlenite Zn z Fe 2− x SiAl 2 O 7 are systematically investigated by SEM–EDS, XRD, TG/DTG, and thermodynamic analyses. It was found that the formation of wüstite (ZnO) x (FeO) 1− x as an intermediates plays an crucial role in the formation of metallic Zn–Fe–C alloy. Phase transformation and reduction mechanisms of C-RD and BF-BD and the interfacial reaction formation mechanism of wüstite (ZnO) x (FeO) 1− x were discussed and clarified in synergistic carbothermic reduction process. Graphical Abstract
研究领域:
冶金工程
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材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Bionic Engineering
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2024
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IF 4.9
Fu Huide,Wang Ben,He Rui,Yang Yongpu,Li Hongyuan,Guo Zhiguang
Photovoltaic (PV) power generation is highly regarded for its capability to transform solar energy into electrical power. However, in real-world applications, PV modules are prone to issues such as increased self-heating and surface dust accumulation, which contribute to a reduction in photoelectric conversion efficiency. Furthermore, elevated temperatures can adversely affect the components’ operational longevity. To augment the efficiency and extend the lifespan of PV modules, it is crucial to implement cooling strategies and periodic surface dust removal. In this research, we introduce a composite PV module design that amalgamates a hygroscopic hydrogel with self-cleaning attributes. The design incorporates a superhydrophobic polydimethylsiloxane (PDMS) film as its exposed surface layer and employs a PAM-CaCl 2 -SiC hygroscopic hydrogel for rear cooling. This arrangement is intended to facilitate efficient surface self-cleaning and passive cooling of the composite PV module. Experimental studies were conducted to evaluate the performance of this innovative composite PV module design, and the results showed that the composite PV panel had an increase of about 1.39% in power generation compared to an ordinary PV panel in the spring of Shenzhen, China.
研究领域:
可再生能源
·
材料科学
·
环境工程
·
能源工程
✓ 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）