SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2024
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IF 6.3
Xisheng Sun,Xiaohua Jia,Hengkang Weng,Jin Yang,Sizhe Wang,Haojie Song
Solar-driven interfacial evaporation (SIE) has been receiving more and more attention on the stage called “Sustainable Development”. However, pursuing a rational coexistence of steady-state evaporation, endogenous resource recovery, and water decontamination in solar evaporators is still a great challenge. To address this problem, a one-dimensional water transport pathway chitosan-based multiphase evaporator (OCHE) was fabricated for simultaneous Marangoni-driven salt mitigation and dye adsorption while solar vapor generation. Due to the efficient energy utilization and water supply, OCHE achieves a water evaporation rate of 1.767 kg m −2 h −1 with an energy efficiency of 96.87% under one sun illumination. More importantly, the 1D water pathway induces directional solute capillary convection and thermocapillary convection in evaporator when OCHE is working in high-salinity brine, leading to localized salt harvesting driven by Marangoni-driven liquid transport. Moreover, OCHE exhibits the good adsorption capacity for methylene blue (MB) and methyl orange (MO). This versatile multiphase evaporator provides a new insight into the design of next-generation eco-friendly, salt-resistant, and in-depth water purification solar evaporators.
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
Nanoscale
·
2015
·Vol. 8
·期 1
·440-450
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IF 7.394
Yuxin Wu,Mingquan Xu,Xi Chen,Shuanglei Yang,Hanshuo Wu,Jun Pan,Xiang Xiong
A novel nanostructure of perpendicular ultrathin MoSe2 nanosheets directly grown on graphene was produced by a facile hydrothermal method in the presence of CTAB. The vertically-oriented and ultrathin MoSe2 nanosheets distribute uniformly on the surface of graphene, and the nanosheets are typically 2–3 layers, which is confirmed by TEM and red shift of the A1g Raman peak. In comparison with pure MoSe2 and MoSe2 nanospheres on graphene, vertically oriented MoSe2 nanosheets on graphene show enhanced organic dye adsorption ability and photocatalytic performance in the degradation of MB, RhB and MO under dark conditions and visible light irradiation. The excellent photocatalytic activity may be contributed by the unique perpendicular MoSe2 nanosheets with fully exposed active edges and hybridized with graphene for reduced electron–hole pair recombination.
研究领域:
材料科学
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环境科学
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化学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2020
·
IF 6.182
Bin Zhan,Yan Liu,Wen-Ting Zhou,Shu-Yi Li,Zhi-Biao Chen,Thomas Stegmaier,Maryam Aliabadi,Zhi-Wu Han,Lu-Quan Ren
Oily wastewater causes serious pollution to the environment and has aroused widespread concern. Herein, non-toxic, environmentally friendly, multi-functional superwetting GO/g-C 3 N 4 /TiO 2 (GCT) foam was prepared via hydrothermal treatment and freeze-drying methods. The as-prepared GCT foam could simultaneously separate oil–water mixtures and adsorb water-soluble organic dyes, both the separation efficiency and adsorption efficiency are higher than 98%. In addition, the GCT foam have the ability to separate various oil-in-water emulsions with separation efficiency of higher than 99%. Meanwhile, the as-prepared GCT foam was able to degrade oil pollution and showed excellent antioil-fouling capability. The as-prepared multifunctional GCT foam is expected to have broad prospects in the treatment of oily wastewater and the adsorption of water-soluble organic pollutants, which may be providing a new strategy for the oily wastewater remediation.
研究领域:
环境科学
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材料科学
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污染治理
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产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Pengfei Yang,Yan Qin,Zheng Xu,Wangxu Hou,Yujie Guo,Kexin Zheng,Junying Li,Weitao Hao,Liying Sun,Feng Ma
With the development of modern industry, water pollution has become an urgent environmental issue, so it is very urgent to find one-step strategy to treat with complicated wastewater. In this paper, poly (vinyl imidazole - co - methacrylic acid) cryogels were prepared with freezing polymerization for the treatment of complicated wastewater containing not only cationic dyes and anionic dyes but also common organic solvents. For the preparation of cyrogels, with the increase of the molar ratio of methacrylic acid to vinyl imidazole, the adsorption capacity of dyes varied as 271.33–187.09 mg·g −1 for methyl blue, 342.96–150.16 mg·g −1 for methyl orange, 7.76–85.72 mg·g −1 for methylene blue, and 19.19–110.10 mg·g −1 for crystal violet. Thus, by adjusting the molar ratio of monomers, a variety of versatile cryogels could be designed to treat with dye solutions of different type and concentration. Adsorption mechanism was then investigated through kinetics and isotherm, which showed single-layer chemical adsorption. Moreover, the surface hydrophilicity of porous cryogels made it possible for the separation of oil-water mixtures with over 95 % separation efficiency by selective water permeation. This study provides a quite new approach to prepare cryogels with both positive and negative charges.
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
MOLECULES
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2023
·Vol. 28
·期 17
·6305
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IF 4.6
Zhemin Xie,Sijie Diao,Ruizheng Xu,Guiyu Wei,Jianfeng Wen,Guanghui Hu,Tao Tang,Li Jiang,Xinyu Li,Ming Li,Haifu Huang
The exploration of low-cost, high-performance adsorbents is a popular research issue. In this work, a straightforward method that combined hydrothermal with tube firing was used to produce Osmanthus fragrans biomass charcoal (OBC) from low-cost osmanthus for dye adsorption in water. The study examined the parameters of starting concentration, pH, and duration, which impacted the process of adsorption of different dyes by OBC. The analysis showed that the adsorption capacities of OBC for six dyes: malachite green (MG,C0= 800 mg/L, pH = 7), Congo red (CR,C0= 1000 mg/L, pH = 8), rhodamine B (RhB,C0= 500 mg/L, pH = 6), methyl orange (MO,C0= 1000 mg/L, pH = 7), methylene blue (MB,C0= 700 mg/L, pH = 8), and crystalline violet (CV,C0= 500 mg/L, pH = 7) were 6501.09, 2870.30, 554.93, 6277.72, 626.50, and 3539.34 mg/g, respectively. The pseudo-second-order model and the Langmuir isotherm model were compatible with the experimental findings, which suggested the dominance of ion exchange and chemisorption. The materials were characterized by using XRD, SEM, FTIR, BET, and XPS, and the results showed that OBC had an outstanding specific surface area (2063 m2·g–1), with potential adsorption mechanisms that included electrostatic mechanisms, hydrogen bonding, and π-π adsorption. The fact that the adsorption capacity did not drastically decrease after five cycles of adsorption and desorption suggests that OBC has the potential to be a dye adsorbent.Keywords:osmanthus fragrans biomass charcoal;adsorbent;high efficiency;dye adsorption;regeneration cycle
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
高影响因子
Journal of Water Process Engineering
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2024
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IF 6.3
Zahira Bano,Muhammad Akram,Naveed Zafar Ali,Muhammad Usman Khan,Fengyun Wang,Linrui Li,Mingzhu Xia
In this research, a novel composite of maleic acid derived 3D porous graphene and zeolatic imidazolate framework (ZIF-67) was developed by using one step in-situ preparation method. The synergistic impact of ZIF-67 embedded on 3D porous graphene network enhances the adsorption capacity of the organic dyes (Congo Red and Methylene Blue). The obtained structured composite material possesses macroporous and mesoporous channels up to 14.42 nm with enhanced morphological stability. The resultant 3DPGZF composite exhibits the maximum adsorption capacity towards the CR (589.46 mg g −1 ) and MB (350.79 mg g −1 ), with a removal rate of 100 % within 50 min. The kinetic study and isothermal analysis showed that pseudo second-order-kinetic model and non-linear form of the Freundlich isotherm model were more fitted with adsorption data. The adsorption of CR and MB occurred spontaneously and exhibited an endothermic nature. The DFT studies and characterization after utilization of the composite demonstrated that electrostatic attractions, pi-pi interaction, pore filling and surface binding reactions were the primary forces of the sorption process. The after adsorption XPS, FTIR, TEM and XRD results revealed that the prepared composite 3DPGZF is highly stable and was successfully regenerated multiple times without deforming its internal structure and morphology.
研究领域:
材料科学
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环境科学
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理论化学
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产品关联
DOI
高影响因子
Science of Advanced Materials
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2016
·Vol. 8
·期 10
·1901-1907
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IF 1.812
Yang Zhenglong,Liu Xinyan,Xu Xiaoli,Chen Sai,Li Feng,Zhu Xingyi,Du Yuchuan
The temperature and pH dual-responsive polyhedral oligomeric silsesquioxane/poly[2-(dimethylamino)-ethyl methacrylate]-b-poly(N-isopropylacrylamide) hybrid materials (POSS/PDMAEMA-b-PNIPAM) were synthesized via combination of reversible addition-fragmentation chain
transfer (RAFT) polymerization and thiol-ene "Click Chemistry." Their structures and self-assembly behaviors were characterized by 1HNMR, TEM, UV-vis absorbance and DLS measurements. POSS/PDMAEMA-b-PNIPAM could self-assemble into thermo- and pH-sensitive micelles with the
POSS heads forming as a core and the PDMAEMA-b-PNIPAM chains as a corona. Hydrophobic dyes could be encapsulated in the micelles, so it can be used to absorb dyes. It was found that POSS/PDMAEMA-b-PNIPAM aqueous solution (5 mg/mL, 2 mL) could rapidly remove 98% of methyl red
and 90% of diphenylthiocarbazone in petroleum ether with the initial concentrations of 50 mg/L (2 mL). In view of the good adsorption efficiency of POSS/PDMAEMA-b-PNIPAM hybrid materials, they will be a potential candidate for absorption of organic dyes.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
Journal of Water Process Engineering
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2025
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IF 6.7
Xiang Shao,Jun Zhong,Dong Xu,Xiaoyuan Ren,Han Zhou,Chenyu Wang
The utilization of solid waste to prepare biochar for pollutant adsorption has emerged as a promising strategy. This study innovatively engineered magnetic biochar (S 1 I 3 -HC 240 and S 3 I 1 -PC 800 ) via hydrothermal carbonization (HTC) and pyrolysis approaches using sewage sludge and iron tailings (IT) as dual precursors, and investigated their adsorption behaviors and underlying mechanisms for methylene blue (MB) removal. The incorporation of IT enhanced MB adsorption, achieving maximum adsorption capacities of 91.17 mg/g (S 1 I 3 -HC 240 ) and 82.30 mg/g (S 3 I 1 -PC 800 ), respectively. The adsorption processes followed the Elovich kinetic model and the Freundlich isotherm, indicating spontaneous and endothermic reactions dominated by chemosorption. The primary mechanisms involved in MB removal included electrostatic attraction, π-π interactions, hydrogen bonding, and surface complexation. Notably, HTC processing with IT promoted formation of oxygenic group and Fe 3 O 4 , strengthening hydrogen bonding and surface complexation. Conversely, in pyrolysis, IT enhanced electrostatic attraction and oxidative degradation by increasing nitrogen functional groups and generating Fe 0 . From both an energy consumption and adsorption performance perspective, the energy-efficient HTC technique offers a significant advantage for the preparation of magnetic biochar from solid waste, making it a promising approach for sludge resource utilization.
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产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
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2020
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IF 4.019
Shengqiang Nie,Yuan Liu,Chunyan Yang,Hui Qin,Jun Luo,Yi Wang
Different sulfur-doped content carbon is fabricated by the carbonization of SSNa modified PES, the pores and abundant heteroatoms endow the S-doped porous carbon (C-3) with a high capacity of 172 F/ g at 1 A/g and good cycling life (98.5 % retention after 6000 cycles). Moreover, typical dye of methylene blue adsorption results exhibited the maximum adsorption capacity of sulfur-doped carbon (C-3) was approximately 78 mg/g. The enhanced electrochemical performance of C-3 is ascribed to the sulfur-doping and ellipsoid structure. The results pave a new way to fabricate controlled heteroatom-doped content carbon material for supercapacitors and dyes adsorption through the cross linking heteroatom-containing polymer.
研究领域:
材料科学
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能源存储
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环境工程
✓ 已验证
DOI
高影响因子
CELLULOSE
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2024
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IF 4.9
Song Ru,Zhu Enwen,Hou Runqing,Niu Fukun,Bao Jiangkai,Chen Dan,Shi Zhuqun,Yang Quanling,Xiong Chuanxi
Treating water pollution, especially dye-contaminated wastewater, in an economical and efficient manner remains a challenge as the surface charge diversity of contaminants. This work designed a nanocellulose-based amphoteric adsorbent based on 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNs) with in situ polymerization of diallyl dimethyl ammonium chloride (PDMDAAC). To explore the adsorption capacity of the amphoteric adsorbent (TOCN/PDMDAAC) for negatively and positively charged contaminants, methyl orange (MO, an anionic dye) and methylene blue (MB, a cationic dye) were employed as adsorbates. The effect of adsorbent on the adsorption performance at different pH, initial concentration of dye, contact time and ionic strength were investigated by batch treatment method. Equilibrium isotherms, kinetics and thermodynamics of dyes onto TOCN/PDMDAAC were examined, which implied that the adsorption behavior was monolayer and the adsorption process was spontaneous endothermic. The adsorption mechanisms are hydrogen bonding and electrostatic interactions between the dye and the active site on the adsorbent. The adsorption behavior of the binary blended dye system of MO and MB has also been investigated, and the addition of the other dye of higher concentration showed a synergistic adsorption behavior. According to the Langmuir model, at pH 7, 298 K, the equilibrium adsorption of MO and MB onto TOCN/PDMDAAC was as high as 404.86 mg g −1 and 520.83 mg g −1 , respectively. These results indicated that TOCN/PDMDAAC was an effective amphoteric adsorbent, which offered a promising strategy for the adsorption of multicomponent dyes in an eco-friendly way. Graphic Abstract
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
CARBOHYDRATE POLYMERS
·
2024
·
IF 10.7
Haoran Tian,Pengfei Yang,Guangbi Li,Feng Ma,Junying Li,Yingzhou Li,Wenyue Cui,Zhiliang Zhang
Chitosan materials are much important in adsorption, separation and water treatment due to their hydrophilicity, biodegradability and easy functionalization. However, they were difficult to form structural materials, which limited its application in engineering. In this paper, a new type of chitosan porous materials was prepared with two-step strategy involving the freezing crosslinking of chitosan with glutaraldehyde to form cryogels, and their subsequent reduction with NaBH 4 to transform C N bonds into C N bonds, resulting in remarkable improvement of mechanical property. That is, the strength remained almost unchanged after 80 % deformation. The abundant -NH 2 and -OH on the surface of materials, as well as the unique pore structure from cryogels, gave relatively high adsorption capacity for metals and dyes (88.73 ± 4.25 mg·g −1 for Cu(II) and 3261.05 ± 36.10 mg·g −1 for Congo red). The surface hydrophilicity of materials made it possible for selective water permeation with over 95 % separation efficiency for oil-water mixtures. In addition, simple hydrophobic modification using bromotetradecane achieved selective oil permeation with over 96 % separation efficiency for oil-water mixtures. This study not only provides a new strategy to endow chitosan materials with excellent mechanical property, large adsorption capacity and good oil-water separation performance, but also offers environmentally friendly materials for sewage treatment applications.
研究领域:
材料科学
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环境科学
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生物工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2018
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IF 4.244
Yang Zhang,Lu Yang,Yan-Hua Wang,Ai-Hua Liu
Highly porous carbon-based materials with 3-dimensional mesh structure as an adsorbent that have been used extensively in environmental treatment, however, it remains challenging to improve performance and to reduce costs. A novel Mo x P y nanoparticles anchored mesh structural biomass carbon (Mo x P y /MSBC) was prepared from renewable seaweed and applied as an efficient absorbent for the selective adsorption of dyes . The mesh structure of provides a powerful support for the Mo x P y nanoparticles and could protect the nanoparticles from being lost. Meanwhile, a better 3D mesh structure obtained endows MSBC a high surface area with a large number of active interaction sites. The Mo x P y /MSBC composite exhibits excellent selective adsorption properties and high adsorption capacity for methyl blue (MB) and rose bengal (RB) at distinctive pH and rapid removal rates within 5 min at 298 K. The adsorption kinetics , isotherm and thermodynamics were determined. In addition, the regeneration of the Mo x P y /MSBC could be accomplished in only three minutes through a simple method by using the absolute alcohol. Therefore, the simple synthesis, high efficacy, excellent selectivity and regenerability in aqueous medium enable the hybrid nanocomposites as excellent candidates to selective removal processes of dyes.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）