JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Ruiqi Li,Changqing Zhou,Lixue Yang,Junqing Li,Guoli Zhang,Jiaxiang Tian,Wencong Wu
Water evaporation using photothermal materials is a cost-effective and sustainable technology for alleviating the world’s freshwater crisis, but oil contaminants and organic pollutants exist in the original water sources, which severely degrade the evaporation performance and pose environmental hazards. In this paper, we demonstrate a photothermal material (multifunctional cotton) that simultaneously demonstrates oil-resistance, organic pollutant removal, and a high water evaporation rate. A Schottky heterostructure was formed between polyaniline (PANI) and Ag NPs, which improved the photothermal conversion and achieved a water evaporation rate of 1.37 kg m −2 h −1 and photothermal conversion efficiency of 84.7% under one-sun illumination (1 kW m −2 ). Notably, various organic pollutants in the water source were thoroughly removed by visible-light catalytic degradation and adsorption, which displayed efficiencies of 99.3% and 97%, respectively. The multifunctional cotton also possessed excellent superoleophobicity, and repelled oil contaminants and organic pollutants in water. Considering these merits, the as-prepared multifunctional cotton is an outstanding candidate for water evaporation from various sources.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 14
·7711-7723
·
IF 11.9
Min Wang,Xuezhong Zhang,Chuanliang Chen,Yong Wen,Qichao Wen,Qiang Fu,Hua Deng
Solar-powered interfacial water evaporation is thought as a promising strategy for clean water production to tackle global water pollution and scarcity. Nevertheless, the water evaporation rate under all-weather conditions still needs to be improved. Herein, we report an effective approach to develop an integrated photo-electro-thermal steam generation system consisting of aramid-based aerogels that illustrate high evaporation rate under 1 sun (1 kW m−2) illumination and can also carry out water evaporation effectively in low-light or dark environments. The porous aerogel evaporators with high conductivity are composed of aramid nanofibers (ANFs) and carbon nanotubes (CNTs) coated with in situ synthesized polypyrrole (PPy). Based on the photo-thermal effect and electro-thermal effect simultaneously, the evaporators ensure efficient all-weather water production. The evaporation rate of the photo-electro-thermal system reaches 4.71 kg m−2 h−1 with 1 sun radiation and an input voltage of 5 V, while the rate is 2.81 kg m−2 h−1 under only 1 sun illumination. Meanwhile, the system also shows promising potential in salt tolerance and dye wastewater treatment.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Junhai Xiao,Fucai Wu,Chunyan Hu,Zhijia Zhu,Baojiang Liu
In agricultural production, the substantial consumption of water and electricity resources is an urgent issue that needs to be addressed.In this work, we address this challenge by repurposing discarded cotton fabric and employing a unidirectional ice templating freezing technique to construct a cellulose hydrophilic aerogel featuring a biomimetic structure with unidirectional vertical channels, hereafter referred to as UVC-aerogel. This innovative material facilitates the conversion of low-grade waste heat (LGWH) into both water resources and electrical energy.The UVC aerogel exhibits remarkable evaporation performance, achieving an efficient evaporation rate of 9.18 kgm −2 h −1 , while demonstrating significant resistance to salt accumulation. Moreover, the evaporation effect synergistically enhances its thermoelectric power generation capacity. Through integration with a self-cooling open thermoelectric battery system, the UVC aerogel capitalizes on the concentration gradient formed within the evaporation system to augment the Seebeck coefficient (6.86 mVK −1 ) and power density (0.015 Wm −2 K −2 ).This work present a green and sustainable solution to the water and electricity challenges encountered in agriculture, carrying substantial implications for both environmental conservation and agricultural advancement.
研究领域:
材料科学
·
农业工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Jingmei Li,Xin Liu,Shuangli Zhang,Luying Chen,Yujie Jiang,Rongyu Li,Xianhui Yin,Youhua Long,Yue Ma,Zhuo Chen
Liquid mulch, as a novel biodegradable mulch, can keep soil temperature and moisture, and also has the advantages of being applied without terrain restriction and biodegradable. However, the biodegradation of ordinary liquid mulch is not controllable and cannot meet the needs of different crop growth periods. In this study, we formulated a liquid mulch film (LMF) with pH-controllable degradation based on furfural and carboxymethyl chitosan, with polyvinyl alcohol , xanthan gum , and biochar added to improve the resistance to water solubility. The resulting LMF exhibited better mechanical strength and decreased light transmittance , air permeability , and water vapor permeability than commercial liquid mulch film (CLF). Compared with bare soli, LMF effectively reduced soil moisture evaporation and increased soil temperature , resulting in the growth promotion of cowpeas and maize with longer and thicker roots. Moreover, citric acid spraying could promote the degradation of LMF (9.26±1.64 %) and increase the abundance of beneficial bacteria in the soil. Overall, our study designed the controlled degradable LMF, which not only enhances crop growth but also fosters sustainable agricultural development .
研究领域:
农业科学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 32
·50777
·
IF 3.125
Junji Zhao,Xueyan Qiu,Xiaomei Liu,Xie Ye,Hongran Xiong,Yan Liang,Ziqiang Lei
In this study, the application of superabsorbent resin (SAP) in inhibiting the soil moisture evaporation (or slowing down the water outflow) was studied. The clay-SAP composites were fabricated by grafting of poly (acrylic acid-N-hydroxymethyl acrylamide/clay) (GT-g-P [AA-co-NHA]/clay) on Tragacanth gum (GT), using solution polymerization. The structure, morphology and stability of the clay-SAP composites were investigated by Fourier transform infrared, scanning electron microscope and TGA. The maximum swelling ratio of Attapulgite (3%)-, Kaolin (3%)- and Montmorillonite (3%)-SAP composite in deionized water reached 1180, 819 and 525 g/g respectively, and the maximum swelling ratio in tap water reached up to 206, 192 and 170 g/g respectively. Meanwhile, the maximum swelling ratio in 0.9% NaCl solution was 95, 82 and 62 g/g respectively. The water retention of clay-SAP composites was also analyzed as a function of temperature. In addition, by simulating the desertification area, the effect of the APT (3%)-SAP composite on the anti-evaporation performance was studied. The obtained results revealed that the water retention of APT (3%)-SAP composite was 36% at 45°C for 12 h. Under natural conditions, the evaporation rate of the anti-evaporation material was inversely proportional to the amount of APT (3%)-SAP composite added.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Small Science
·
2024
·Vol. 4
·期 7
·2400046
·
IF 11.1
Jie Yu,Mengmeng Chen,Neng Hu,Weijia Wang,Lin Lei,Huiqing Fan,Peter Müller-Buschbaum,Qi Zhong
Long-lasting hydrogen evolution and efficient dew harvest is realized via electrospinning a polyvinylidene fluoride (PVDF) membrane on hybrid hydrogels embedded with photocatalytic g-C 3 N 4 /Pt nanosheets. Due to the hindrance of water evaporation by the hydrophobic PVDF membrane, the drying process of the hybrid hydrogels significantly slows down. Hence, the g-C 3 N 4 /Pt nanosheets can continue working on photocatalytic splitting of the water molecules in the hydrogels. When the thickness of the PVDF membrane is 48 μm, the hydrogen evolution rate can reach 2,543 μmol h −1 g −1 , which is 38% more than that of the hybrid hydrogel without covering. Therefore, the hybrid hydrogels covered with PVDF membrane are able to work with high efficiency for 12 h, sufficient for hydrogen evolution during the daytime. In addition, the hydrophobic PVDF membrane and hydrophilic hydrogels construct a Janus structure and induce a fast transport of water molecules from the hydrophobic to hydrophilic side. It is beneficial for the rapid collection of dew in the morning. Based on the long-lasting hydrogen evolution and efficient dew harvest, the present hybrid hydrogels covered with PVDF membrane are very suitable for the environment rich in solar resource and lack of water supply, such as desert or prairie.
研究领域:
材料科学
·
环境科学
·
化学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Helong Zhang,Chuxiong Qiu,Rong Zhang,Hao Zhang,Yunxia Chen,Tao Zeng,Fen Qiao,Lee Li,Ghafar Ali,Xiujian Zhao,Yi Xie
We develop layered MAX (e.g., Ti 3 AlC 2 , Ti 3 AlCN, Ti 2 AlC, Ti 2 AlN) into novel photothermal silica-deposited MAX (MAX@SiO 2 ) composites and coatings for efficient seawater desalination and anti-/de-icing, by combining their strong optical absorbance capacity covering UV-Vis-NIR regions with unique surface wettability. The water evaporator with a unique gradient superhydrophilicity-hydrophilicity-hydrophobicity-superhydrophobicity is achieved by incorporating the as-synthesized hydroxyl- and methyl-modified MAX@SiO 2 composites into porous melamine foam (MF). By combining the unique gradient wettability with porous structure and strong optical absorbance, the proposed MAX@SiO 2 evaporator displays excellent seawater desalination performance with high water evaporation rates of ∼2.19 and 3.45 kg m −2 h −1 under 1.0 and 2.0 sun irradiation, respectively. The photothermal water evaporation efficiency can reach to 91.2 % under 1.0 sun illumination. Besides, by sequential spray-depositing resin-based primer and MAX@SiO 2 top-coat on glass slides and insulators, the as-achieved superhydrophobic (SH) photothermal coatings displayed excellent anti-icing and de-icing performances. The procedures described here enable a convenient and novel strategy to develop micro-nanocomposites and multifunctional coatings with strong photothermal conversion ability, which would shed light on promising potentials in energy conversion and photo-thermal applications including solar freshwater generation, sewage purification, and anti-/de-icing.
研究领域:
材料科学
·
环境工程
·
能源转换
·
光热应用
✓ 已验证
产品关联
DOI
高影响因子
SOIL & TILLAGE RESEARCH
·
2022
·
IF 7.366
Hongran Xiong,Hui Peng,Xi’e Ye,Yanrong Kong,Na Wang,Fenghong Yang,Ben-Hur Meni,Ziqiang Lei
Hydroxyethyl starch (HES) and 2-Acrylamide-2-methyl-1-propanesulfonic acid (AMPS) as raw material, calcium alginate (CA33) was used as the main carrier for regulating and controlling soil water storage , and in situ polymerization with inorganic clay sodium bentonite to prepare a novel type of superabsorbent HES-PAM/bentonite and HES/CA33-PAM/ sodium bentonite composite materials using in-situ polymerization. The prepared hydrogel was characterized by scanning electron microscope (SEM), infrared spectrum (IR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The water absorption/release properties of the superabsorbent polymer were explored. The results showed that the new superabsorbent material reached salt equilibrium within 30 min. The water absorption rates in distilled water, tap water, and 0.9 wt% saline solution were 1484, 312, and 121 g/g. The successful inarching of calcium alginate improved the soil's water holding capacity and provided a slow water release, which increased the water absorption rate of the superabsorbent materials in distilled water and saline solution by 25.8% and 10%, respectively. The influence of soil types, particle diameter, and the content of superabsorbent materials on inhibiting soil water evaporation was studied. Therefore, having great application potential in the agricultural production of saline-alkali soils.
研究领域:
材料科学
·
环境科学
·
农业科学
✓ 已验证
产品关联
DOI
高影响因子
WATER AIR AND SOIL POLLUTION
·
2020
·Vol. 231
·期 6
·1-15
·
IF 1.9
Cheng Sha,Zeng Wei,Liu Xiaomei,Zhao Junji,Qiu Xueyan,Lei Ziqiang
Hydroxypropyl cellulose-g-poly (acrylicacid-co-2-acrylamido-2-methyl-1-propane sulfonic acid)/laterite (HPC-g-P (AA-co-AMPS)/laterite) with excellent water (salt) absorbency, water retention performance, re-swelling property, and fast water absorption rate was prepared by free-radical polymerization. The structure and morphology of the synthetic materials were characterized by FTIR, SEM, and TGA. The water absorbency of superabsorbent resin in different salt solutions was studied, and it was proved that the superabsorbent resin was more sensitive to salt solutions. The swelling kinetic mechanism of superabsorbent resin was explained by pseudo-second-order swelling kinetic model. The effects of the ratio of laterite to loess on water evaporation and the content of superabsorbent resin on soil water evaporation and shrinkage of soil crust were studied.
研究领域:
材料科学
·
环境科学
·
土壤学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Ziyu Hua,Guangxue Chen,Kai Zhao,Ren’ai Li,Minghui He
Liquid-free ionic conductors (LFICs) have promising applications in flexible electronics because most ionic conductors currently suffer from ionic liquid leakage or water evaporation issues. However, it has been a formidable challenge for LFICs to achieve long-term repeated self-adhesion on different substrates, especially on soft biological tissues. Based on the double-network design concept, we first fabricate a series of repeatable self-adhesive liquid-free double-network ionic conductors (SALFDNICs), consisting of stretchable first poly(AA-ChCl)-type supramolecular deep eutectic polymer networks and stiff second polydopamine (PDA) networks, which can maintain sufficient dynamic hydrogen bonds and catechol groups in the ionic conductors by preventing the overoxidation of dopamine, thus balancing the contradiction between adhesion and cohesion in liquid-free ionic conductors. Therefore, SALFDNICs can instantly form various interface interaction forces with multiple substrates (adhesion strength up to 757 N/m) and firmly adhere to various substrates for 20 detachment-reattachment cycles with a reduction in adhesion strength of less than 15%. Furthermore, SALFDNICs also have other comprehensive properties, such as optimum self-healing properties (self-healing efficiency of 90%), good stretchability (strain at break of 1200%), and promising conductivity (2.31 × 10–2 S m–1). Therefore, we believe that the extraordinary performance of SALFDNICs is important for improving device integration and the further development of flexible electronics.
研究领域:
材料科学
·
柔性电子
·
高分子化学
·
离子导体
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）