JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Yuting Li,Yueyang Xu,Erjian Huang,Liming Kong,Yongping Zeng
Thiophene-like sulfides present in fuel oil release sulfur oxides (SO x ) during combustion, which pose significant risks for both environmental sustainability and public health. Adsorption desulfurization (ADS) has garnered considerable attention because of its mild operating conditions, low production costs, and minimal impact on the octane number of fuels. Metal-organic frameworks used as desulfurizing adsorbents provide several advantages, including a high specific surface area and easily adjustable structures . Here, we synthesized the micro/mesoporous adsorbent CeO 2 @HP-HKUST-1 (CeO 2 @Hierarchical Porous-Hong Kong University of Science and Technology-1) through the hybridization of salicylic acid (SA) using a solvothermal method. We assessed the adsorption performance of CeO 2 @HP- HKUST-1 _ 1.5 for benzothiophene and thiophene through batch and breakthrough adsorption experiments. The adsorption capacities for thiophene and benzothiophene were measured at 21.2 mg S/g and 35.3 mg S/g, respectively. Remarkably, in competitive toluene experiments, the adsorption capacity for benzothiophene remained significant at 28.9 mg S/g, due to enhanced Ce–S bonding interactions and the exposure of unsaturated metal centers of Cu. Additionally, regeneration experiments demonstrated that CeO 2 @HP-HKUST-1 retained excellent adsorption capacities after four cycles. These findings highlight the potential of CeO 2 @HP-HKUST-1 as an effective adsorbent for desulfurization applications.
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
RSC Advances
·
2022
·Vol. 12
·期 52
·33716-33724
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IF 4.036
Jie Hu,Lei Li,Hao Li,Ying Zhai,Fushun Tang,Zhe Zhang,Banglin Chen
The mixed bimetal metal–organic framework Ni0.37Co0.63-MOF-74 has been constructed by the solvothermal method for NO adsorption. The results showed that bimetal Ni0.37Co0.63-MOF-74 takes up NO with a capacity of up to 174.3 cc g−1 under ambient conditions, which is 16.3% higher than that of the best single metal Co-MOF-74. The IAST adsorption selectivity for a NO/CO2 binary mixture can reach a maximum of 710 at low adsorption partial pressure, while the regeneration performance can be retained even after five cyclic adsorption–desorption experiments. Its separation performance was further confirmed by breakthrough experiments, indicating this new bimetal Ni0.37Co0.63-MOF-74 as one of the best materials for NO adsorption and separation in flue gas.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2024
·
IF 1.5
Lei Miao,Zhang Jun,Liu Chang,Guo Junpeng,Li Ye
Herein, S-nZVI was synthesized to remove U(VI) from seawater. At a S/Fe ratio of 0.18 and pH of 5, adsorption of U(VI) reached equilibrium after 20 min with the removal rate of 97.93%. And the maximum adsorption capacity obtained by Langmuir isothermal model was 1177.09 mg/g. Moreover, S-nZVI exhibited selectivity in the presence of interfering ions, regeneration performance in 5 reuse cycles, and high removal efficiency in actual seawater. Mechanism investigations showed that UO 2 2+ uniformly adsorbed on S-nZVI surface was irreversibly reduced and generated UO 2 precipitates due to the electrons provided by S 2− , S 2 2− and Fe(II).
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
ADSORPTION SCIENCE & TECHNOLOGY
·
2022
·
IF 4.373
Zhijuan Zhang,Pengwei Li,Ting Zhao,Yuanhan Xia
The ZIF-8 crystals were successfully postsynthetically modified using methylamine (MA), ethylenediamine (ED), and N, N-dimethylethylenediamine (MMEN) to improve their adsorption performance toward CO2. Results showed that, compared with the original ZIF-8, the BET specific surface area of MA-ZIF-8, MMEN-ZIF-8, and ED-ZIF-8 has increased by 118.2%, 92.0%, and 29.8%, respectively. In addition, their total pore volume increased separately by 130.8%, 100%, and 48.7%. The adsorption capacities of CO2 on the amine-modified ZIF-8 samples followed the order . The CO2 adsorption capacities at 298 K on MA-ZIF-8, MMEN-ZIF-8, and ED-ZIF-8 were increased by 118.2%, 90.2%, and 29.8%, respectively. What is more, the CO2/N2 selectivities calculated using an IAST model of the amine@ZIF-8 samples at 0.01 bar and 298 K were also significantly improved and followed the order , which increased by 173.0%, 121.4%, and 22.6%, respectively. The isosteric heat of CO2 adsorption () on the MA-ZIF-8, MMEN-ZIF-8, and ED-ZIF-8 all becomes higher, while of N2 on these samples was slightly lower in comparison with that on the ZIF-8. Furthermore, after six recycle runs of gravimetric CO2 adsorption-desorption on MA-ZIF-8, the adsorption performance of CO2 is still very good, indicating that the MA-ZIF-8 sample has good regeneration performance and can be applied into industrial CO2 adsorption and separation.
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
FUEL
·
2024
·
IF 6.7
Zhongwei Meng,Zhongqiang Bao,Zhao Chen,Bosong Zeng,Zihan Qin,Jie Tan,Ping Pu
The regeneration characteristics of a diesel particulate filter (DPF) are studied on a regeneration test bench, with a focus on the effects of ash and catalyst, including the effects of ZnO and CeO 2 on the regeneration performance and emission characteristics of the DPF. The results indicate that the addition of ZnO and CeO 2 can easily lead to local high temperatures during the regeneration process of the DPF, with the highest peak temperature appearing in a 1:3 ratio for both ZnO and CeO 2 , leading to a significant increase in CO 2 . Compared with ZnO, CeO 2 can advance the DPF rapid regeneration period by about 300 s. When the ratio of PU: CeO 2 is 1:5, the total particulate matter emitted is reduced to the lowest level, but it will significantly increase the emission of nuclear model particles, especially particles below 23 nm. Under the same mixing ratio, an increase in carbon loading can enhance the oxidation ability of ZnO towards carbon black, but the difference between the number of particles emitted during DPF regeneration and regeneration efficiency will gradually decrease.
研究领域:
环境科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2022
·
IF 8.431
Wenbin Hu,Ziwen Chang,Aiping Tang,Yun Wei,Difan Fang,Xiang Lu,Penghui Shao,Hui Shi,Kai Yu,Xubiao Luo,Liming Yang
Supported-adsorbents growing on the substrate in situ are equipped with the advantages of high adsorption capacity, excellent regeneration performance, and adaptability to complex wastewater. However, the effects of substrate on the adsorption properties of supported-adsorbent are rarely considered, which will hinder its development and scale-up applications. In this study, the influences of different substrates (Ti, Mo, W, CC) on the Ag + adsorption behavior of supported-MoS 2 adsorbents were investigated. The adsorption kinetics , adsorption mechanism, and the renewability of these supported-MoS 2 were compared orderly. As a result, MoS 2 grown on a tungsten substrate (MoS 2 –W) exhibits a remarkable adsorption capacity for Ag + (1.98 mg cm −2 and 598.80 mg g −1 ), which is 6.38–33 times more than the other three supported-MoS 2 . Moreover, the MoS 2 –W also possesses an ultrahigh distribution coefficient (24.80 mL cm −2 ) for Ag + , and the selection coefficient can reach 1984. XRD and electrochemical characterization analysis indicated that Ag + adsorption performance of supported-MoS 2 is positively correlated with the degree of its amorphous structure. Substrate W with the terrific electrical properties which may facilitate the disordered growth of MoS 2 , resulting in more active sites exposed, and endow MoS 2 –W with outstanding Ag + capture performance. Finally, the supported-MoS 2 retains a high removal efficiency of Ag + after 5 cycles of adsorption and desorption. This study provides a novel perspective for promoting the practical application of supported-sorbents to recycle heavy metals.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Jue Wang,Xi Yang,Dongdong Yan,Junyan Wu,Yiguo He,Yadong Zhang
Imprinted resins have attracted much attention for their high contaminant removal and reuse performance. Chloroacetylated polystyrene resins, polyethyleneimine, epichlorohydrin, and Cu(II) were used as support, functional monomer , cross-linker and template, respectively. The ion-imprinted resins (PS-PEI@SIP) and non-imprinted resins (PS-PEI@NIP) were prepared by the combination of amination reactions and surface ion-imprinting technique. The adsorption processes of Cu(II) with PS-PEI@SIP and PS-PEI@NIP followed pseudo-second-order kinetics. The langmuir isothermal adsorption model was consistent with the adsorption curve, indicating that Cu(II) were uniformly adsorbed on the PS-PEI@SIP surface. Thermodynamic experiments showed that the adsorption of Cu(II) by PS-PEI@SIP was a spontaneous process, and high temperature was favorable for adsorption. In addition, the selectivity of PS-PEI@SIP to Cu(II) was confirmed by multi-component competitive adsorption experiments. When Cu(II) mixed with Ni(II), Zn(II) and Cd(II), the selection coefficients of PS-PEI@SIP for Cu(II) were 31.98, 37.19 and 64.27. The results showed that PS-PEI@SIP had high adsorption capacity and good selectivity for Cu(II) ions in mixed ionic solution, and the adsorption capacity was 89.4 mg·g –1 . The simulation wastewater dynamic adsorption experiment showed that the PS-PEI@SIP adsorption column could treat 52.8 BV Cu(II) concentration ( C ＜7.5 mg·g –1 ), when the influent Cu(II) concentration was 150 mg∙L −1 . When 1 mol∙L −1 HCl solution was used for dynamic desorption of PS-PEI@SIP, the desorption rate was more than 92%, indicated that PS-PEI@SIP had good regeneration performance. These results provided basic information for the production of imprinted adsorbent resins.
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
CHEMOSPHERE
·
2021
·
IF 7.086
Lei Chen,Yu Han,Wei Li,Xiaohui Zhan,He Wang,Chengchao Shi,Yanping Sun,Huixiang Shi
Although ferrihydrite (Fh) exhibits good Sb(V) adsorption behavior, the instability of its amorphous structure limits its engineering applications. In this study, siliceous ferrihydrite (SiFh) was prepared via coprecipitation to resolve these limitations. X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and SiFh aging tests revealed that the growth of Fh particles covered with Fe–O–Si links was inhibited while maintaining their amorphous structure. Meanwhile, the XRD patterns indicated that SiFh maintained excellent stability after five adsorption–desorption cycles. During the aging process, the added Si decreased the electrostatic interaction between SiFh and Sb(V), which weakened the affinity between Sb(V) and Fh; however, most of the Sb(V) still entered the Fe lattice after seven days of aging, which was favorable for Sb(V) recovery during reutilization. Furthermore, Sb(V) adsorbed from the simulated textile wastewater onto SiFh had the highest adsorption energy (E ads ), which meant its unstable inner-sphere complexation on the surface of SiFh. Meanwhile, the presence of SO 4 2− , NO 3 − , Ca 2+ , and Mg 2+ contributed to Sb(V) outer-sphere adsorption. Both of these factors were conducive to Sb(V) desorption. Hence, SiFh is a promising adsorbent owing to its facile preparation process, stability, and optimal regeneration properties.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2020
·
IF 7.182
Yu-Rong Zhang,Jun-Teng Chen,Bin Hao,Rui Wang,Peng-Cheng Ma
Cellulose is a natural material with dissolution-regeneration property and numerous hydrogen bonds in the molecule. By utilizing these properties, this paper reported the development of a multi-functional fabric consisting of cellulose and commercial cotton fabric. The morphology, mechanical and thermal properties along with the oil-water separation performance of the developed material were studied. The results showed that the cellulose dissolved in NaOH/urea solution was regenerated in a salt solution, and attached tightly onto the cotton fabric, forming a sandwich structure for the material. Such modification significantly enhanced the strength, thermal stability and hydrophilic performance of the fabrics. Interestingly, the prepared material exhibited a unique underwater oleophobic performance, and had the capability to separate highly emulsified oil-water mixtures. The relatively low cost for the material preparation, enhanced mechanical property and high separation performance distinguished the developed material a suitable candidate for the separation of emulsified oil from water in practical applications.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED ENERGY
·
2019
·
IF 8.426
Chuanwen Zhao,Yafei Guo,Junjie Yan,Jian Sun,Weiling Li,Ping Lu
Co-firing of coal and biomass blends provides a promising route for clean energy utilization with high efficiency and mitigated pollutants emission. However, the technology meets an important challenge in effective utilization of the co-firing fly ashes. Efforts have been made to valorize the co-firing fly ash residues as potential CO 2 sorbents. To achieve enhanced CO 2 sorption performance, the samples were modified with tetraethylenepentamine (TEPA). Effects of amine loading, CO 2 sorption temperature, initial CO 2 concentration and gas flow rate on CO 2 sorption behaviors of the amine-tethered sorbents were investigated. The desired sorbent with 25% TEPA loading presented the highest CO 2 sorption capacity of 1.19 mmol CO 2 /g when tested under 60 °C and 15%CO 2 with a total gas flow rate of 1200 ml min −1 . The effects of regeneration temperature and ramping rate on sorbent regeneration performance were demonstrated. The maximum sorbent regeneration efficiency of 97.2% was achieved under the regeneration condition of 110 °C and 5 °C min −1 . CO 2 sorption capacity of the amine-tethered sorbent kept stable within 5 repeated cycles. These findings indicate that the amine-tethered sorbent could be a good candidate for on-site CO 2 capture from flue gas in co-firing power plants.
研究领域:
能源与环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 101
·82916-82923
·
IF 3.84
Yingying Zhu,Jianxin Zou,Xiaoqin Zeng
In the present work, two LiBH4 based hydrogen storage composites, namely, 3LiBH4/graphene and 3LiBH4/graphene–10 wt% CeF3, were prepared through ball milling and their hydrogen sorption behaviors were investigated. It was shown that the dehydrogenation kinetics of 3LiBH4/graphene was improved by doping 10 wt% CeF3, which was attributed to the formation of CeB6. The rehydrogenation of the 3LiBH4/graphene composite could be achieved under 440 °C with 3.3 MPa hydrogen pressure and the hydrogen absorption capacity reached 7.40 wt% to LiBH4 after 10 h. Further addition of CeF3 did not improve the rehydrogenation kinetics but reduced the absorption capacity. SEM observations suggested that LiBH4 was confined in a graphene wrapper after rehydrogenation, forming “graphene capsules” that helped the regeneration of LiBH4.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Nano Research
·
2020
·Vol. 14
·期 2
·541-545
·
IF 8.183
Yu Ying,Yang Lifeng,Tan Bin,Hu Jianbo,Wang Qingju,Cui Xili,Xing Huabin
C5 olefin separation is of great importance and challenge in industry with the increasing demand for synthetic rubber. However, the related study is limited due to the complex compositions and the similar boiling points. Here, we for the first time employ two anion-pillared hybrid porous materials (ZU-62 and TIFSIX-2-Cu-i) towards the challenging separation of C5 olefin mixtures ( trans -2-pentene, 1-pentene and isoprene). These two adsorbents not only exhibit the unprecedented separation performance, but also show excellent recycle performance. Owing to the favorable electrostatic environment within a suitable confined space, TIFSIX-2-Cu-i is able to distinguish the three C5 olefins ( trans -2-pentene, 1-pentene and isoprene) with a high uptake of trans -2-pentene (3.1 mmol·g -1 ). ZU-62 (also termed as NbOFFIVE-2-Cu-i) with contracted aperture size shows exclusion effect to the relatively large molecule of isoprene at low pressure range (0–6 kPa), contributing to the excellent separation selectivity of 1-pentene/isoprene (300). The excellent separation performance of ZU-62 and TIFSIX-2-Cu-i is verified by the breakthrough experiment. And interestingly, the regeneration tests show that C5 olefins can be easily desorbed from ZU-62, TIFSIX-2-Cu-i under 298 K. Moreover, the detailed adsorption behavior is further revealed by simulation studies.
研究领域:
化学工程
·
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）