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学者姓名：孙继红
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摘要 ：
The constructed strategy of the disorderly layered UiO-66-on-clinoptilolite heterostructures was proposed through assistance of polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP). Their physicochemical properties were demonstrated via various characterizations, such as X-ray powder diffraction (XRD) patterns and scanning/transmission electron microscope (SEM/TEM) images. Particularly, the small-angle X-ray scattering (SAXS) method was employed to elucidate their fractal structure evolutions, manifesting the transformations of surface fractal with irregularity and roughness. The results showed that the PEG introduction was beneficial to the formation of disorderly layered clinoptilolites (CP). The particles sizes of UiO-66-NH2 were successfully controlled via additive PVP, and the interactions between UiO-66-NH2 and deposited CP-PEG were enhanced. The preliminarily adsorption performances of the obtained UiO-66-on-CPs exhibited a superior selective factor (around 26) of CO2/CH4. This approach may open a new avenue to improve its adsorption selective performance for CO2 and CH4 due to its dual microporous features and enlarged lamellar spacing.
关键词 ：
UiO-66 UiO-66 Adsorption separation Adsorption separation Clinoptilolite Clinoptilolite Nonionic surfactant Nonionic surfactant Microstructure Microstructure Porous materials Porous materials
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| GB/T 7714 | Jia, Bingying , Sun, Jihong , Bing, Liujie et al. Nonionic surfactant-assisted strategy towards disorderly layered UiO-66-on-clinoptilolites heterostructure as efficient adsorbent for selective adsorption of CO2 and CH4 [J]. | MATERIALS LETTERS , 2022 , 328 . |
| MLA | Jia, Bingying et al. "Nonionic surfactant-assisted strategy towards disorderly layered UiO-66-on-clinoptilolites heterostructure as efficient adsorbent for selective adsorption of CO2 and CH4" . | MATERIALS LETTERS 328 (2022) . |
| APA | Jia, Bingying , Sun, Jihong , Bing, Liujie , Bai, Shiyang . Nonionic surfactant-assisted strategy towards disorderly layered UiO-66-on-clinoptilolites heterostructure as efficient adsorbent for selective adsorption of CO2 and CH4 . | MATERIALS LETTERS , 2022 , 328 . |
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摘要 ：
With the assistance of cetyltrimethyl ammonium bromide (CTAB), the delamination of disorderly layered cli-noptilolite (CP) was performed. The introduction of CTAB in hydrothermal system was beneficial to stratification of CP lamellas by enlarging interlayer spacing, and thus accelerating the formation of disordered CP nanosheets. The hydrophobic alkyl chain restricts the crystal growth along a-axis and the few-layer CP lamellas with inte-grally preserved heulandite structures were obtained by ultrasonic treatment and HNO3 modification at room temperature. Meanwhile, the CTAB-assisted crystallization mechanism was further elucidated, in which, the amorphous spherical nanoparticles were firstly generated and then transformed into the fibrous and lamellar species. Finally, the flower-like CP morphologies with the aggregated nanosheets appeared. Meanwhile, the selective adsorptions and separations of CO2 and CH4 using these delaminated CPs as the absorbents were preliminarily explored, showing a strong potential in the mixed gases separation applications. This approach is a promising strategy for constructing delaminated zeolites with low n(SiO2/Al2O3), which may open a new avenue for the delaminated CP nanosheet applications in gas adsorption and separation fields.
关键词 ：
Clinoptilolites Clinoptilolites CH4/CO2 CH4/CO2 Adsorption Adsorption Delamination Delamination Zeolites Zeolites
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| GB/T 7714 | Jia, Bingying , Xu, Bang , Bing, Liujie et al. Cationic surfactant-assisted delamination of disorderly layered clinoptilolites for selective adsorption of CO2 and CH4 [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2022 , 10 (3) . |
| MLA | Jia, Bingying et al. "Cationic surfactant-assisted delamination of disorderly layered clinoptilolites for selective adsorption of CO2 and CH4" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10 . 3 (2022) . |
| APA | Jia, Bingying , Xu, Bang , Bing, Liujie , Sun, Jihong , Bai, Shiyang . Cationic surfactant-assisted delamination of disorderly layered clinoptilolites for selective adsorption of CO2 and CH4 . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2022 , 10 (3) . |
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摘要 ：
The clinoptilolites (CPs) with high purity were prepared via structure directing agent (SDA) method combining with hydrothermal method using silica sol as the silica source and aluminum hydroxide as the aluminum source. Their structural features were characterized by X-ray diffraction (XRD) patterns, Fourier transform infrared (FT-IR) spectra, thermal gravimetric (TG) analysis, scanning electron micrograph (SEM) images, Si-29 nuclear magnetic resonance (NMR) profiles. The effects of additive amount and aging time of used SDA, as well as synthetic parameters such as crystallization temperature and crystallization time on their structure and performance were emphasized. Particularly, the activation energies of their crystallization kinetics at different stages of induction period and growth period were calculated on the basis of Arrhenius equation. The results demonstrated that the obtained CPs presented the highest relative crystallinity when the additive amount of used SDA was 1 mL at aging periods of 2 d, otherwise, their relative crystallinity degree was low due to existences of a large number of heterocrystal impurities. Particularly, the apparent activation energy values for induction (E-n) and growth (E-g) profile were calculated by the Arrhenius equation. The E-n value (86.46 kJ/mol) of induction period was much higher than that E-g value (9.64 kJ/mol) of growth stage, suggesting that the induction period was the main controlling step during the synthetic CP. Finally, the synthetic CP was employed to preliminarily assess its performances for CH4/N-2 separation. These demonstrations provide a promising method for the synthesis of CPs.
关键词 ：
Hydrothermal synthesis Hydrothermal synthesis Clinoptilolite Clinoptilolite Structure directing agent Structure directing agent Crystallization kinetics Crystallization kinetics Zeolites Zeolites
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| GB/T 7714 | Zorigt, Tergel , Zhai, Chengwei , Jiao, Jian et al. Synthesis and Characterizations of High Crystallized Clinoptilolite by Structure Directing Agent Method and its Crystallization Kinetics [J]. | CHEMISTRYSELECT , 2021 , 6 (12) : 2855-2861 . |
| MLA | Zorigt, Tergel et al. "Synthesis and Characterizations of High Crystallized Clinoptilolite by Structure Directing Agent Method and its Crystallization Kinetics" . | CHEMISTRYSELECT 6 . 12 (2021) : 2855-2861 . |
| APA | Zorigt, Tergel , Zhai, Chengwei , Jiao, Jian , Sun, Jihong , Wu, Xia . Synthesis and Characterizations of High Crystallized Clinoptilolite by Structure Directing Agent Method and its Crystallization Kinetics . | CHEMISTRYSELECT , 2021 , 6 (12) , 2855-2861 . |
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摘要 ：
本发明提供一种花瓣状斜发沸石的制备方法，包括：将碱源、铝源、水混合均匀，得到溶液Ⅰ；将非离子型表面活性剂、硅源、水混合均匀，得到溶液Ⅱ；将溶液Ⅱ加入到溶液Ⅰ中，并加入晶种，在80‑200℃下水热晶化10‑96h，冷却至室温后，经有机溶剂洗涤并离心分离后，进行干燥、煅烧，得到花瓣状斜发沸石。本发明通过添加非离子型表面活性剂有利于调控斜发沸石的生长行为，合成出一种具有花瓣状形貌的斜发沸石，所制备的产品保持了良好的结晶度和纯度；同时，本发明的制备方法具有产率高、能耗低、操作易行等特点，尤其适合规模化工业生产。
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| GB/T 7714 | 孙继红 , 李业宏 , 贾冰莹 et al. 一种花瓣状斜发沸石的制备方法 : CN202110167808.9[P]. | 2021-02-07 . |
| MLA | 孙继红 et al. "一种花瓣状斜发沸石的制备方法" : CN202110167808.9. | 2021-02-07 . |
| APA | 孙继红 , 李业宏 , 贾冰莹 , 白诗扬 , 武霞 . 一种花瓣状斜发沸石的制备方法 : CN202110167808.9. | 2021-02-07 . |
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摘要 ：
Nanosol precursors with different hydrothermal treatment time were obtained at 150 degrees C, which was used as structure promoter (SP) to synthesis the clinoptilolites (CPs). The effected mechanism of the SP on the selforganization stage, the nucleation and growth of CP was investigated by XRD, SEM, SAXS, DLS, Uv-Raman, FT-IR and Si-29-NMR. During the self-organization stage of the SP with shorter pre-crystallization time (less than 100 h), its fractal structure underwent a process from densification (surface fractal) to looseness (mass fractal), and then to densification (surface fractal) accompanying with increased particle size and enhanced crystallinity of CP, which effectively promoted the formation of crystal nuclei, acting as structure directing agent. While the crystal growth of resultant CP in the SP pre-crystallized for longer time (144 h) could shorten the induction period, but had little impact on the growth period, serving as "seed". However, overmuch resulted in that a large amount of heterophase (phillipsite) coexisted with CP.
关键词 ：
Clinoptilolite Clinoptilolite Structural promotor Structural promotor Aluminosilicate sol Aluminosilicate sol Fractal Fractal SAXS SAXS
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| GB/T 7714 | Sheng, Mengdi , Ouyang, Teng , Sun, Jihong et al. Fractal evolution of aluminosilicate sol and resulting effects on the synthesis of clinoptilolite via small angle X-ray scattering investigation [J]. | MATERIALS CHEMISTRY AND PHYSICS , 2021 , 263 . |
| MLA | Sheng, Mengdi et al. "Fractal evolution of aluminosilicate sol and resulting effects on the synthesis of clinoptilolite via small angle X-ray scattering investigation" . | MATERIALS CHEMISTRY AND PHYSICS 263 (2021) . |
| APA | Sheng, Mengdi , Ouyang, Teng , Sun, Jihong , Bai, Shiyang , Wu, Xia . Fractal evolution of aluminosilicate sol and resulting effects on the synthesis of clinoptilolite via small angle X-ray scattering investigation . | MATERIALS CHEMISTRY AND PHYSICS , 2021 , 263 . |
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摘要 ：
Clinoptilolite (CP) with various morphologies, such as spherical, flower, cylindrical, and disc-shape, were successfully synthesized in the presence of alcohol solvents with different carbon chain lengths. The structural and textural properties of the resultant CPs were characterized via XRD, SEM, TG-DSC profiles, TEM, NMR, FT-IR spectra, and N-2 sorption isotherms. The effect of the additive amount of various alcohol solvents on the induction (nucleation) periods and growth stages of synthetic CPs were detailed investigated. Their activation energies of induction (E-n) and growth (E-g) periods during crystallization intervals were calculated according to the Arrhenius equation, where the former being larger than the latter, indicating that nucleation is the key step during the whole synthesis of CPs. Particularly, the E-n value gradually increased as the increasing chain-length of the used alcohol, but smaller than that without additive alcohols. These demonstrations implied that the presence of alcohol solvents is beneficial to promote the nucleation process of synthetic CP. Furthermore, their CH4 and N-2 adsorption capacity and selectivity were preliminary explored, showing the highest selective factor of 5.58 at 0 degrees C for CH4/N-2 separation using flower-like CP as an adsorbent. These results suggested a promising adsorbent for wide applications in gas separation.
关键词 ：
CH4/N-2 separation CH4/N-2 separation Alcohol effects Alcohol effects Hydrothermal synthesis Hydrothermal synthesis Activation energy Activation energy Clinoptilolites Clinoptilolites
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| GB/T 7714 | Wang, Yingqian , Sun, Jihong , Munir, Tallat et al. Various morphologies of clinoptilolites synthesized in alcohol-solvent hydrothermal system and their selective adsorption of CH4 and N-2 [J]. | MICROPOROUS AND MESOPOROUS MATERIALS , 2021 , 323 . |
| MLA | Wang, Yingqian et al. "Various morphologies of clinoptilolites synthesized in alcohol-solvent hydrothermal system and their selective adsorption of CH4 and N-2" . | MICROPOROUS AND MESOPOROUS MATERIALS 323 (2021) . |
| APA | Wang, Yingqian , Sun, Jihong , Munir, Tallat , Jia, Bingying , Gul, Anadil . Various morphologies of clinoptilolites synthesized in alcohol-solvent hydrothermal system and their selective adsorption of CH4 and N-2 . | MICROPOROUS AND MESOPOROUS MATERIALS , 2021 , 323 . |
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摘要 ：
Prelaminar synthesis of anatase TiO2 nanoparticles supported on bimodal mesoporous silica (BMMs) was carried out by impregnation method. Physiochemical characteristic and structural morphology of synthesized catalyst (TiO2/BMMs) were studied in detail by X-ray diffraction patterns, N-2 sorption isotherms, Fourier transform infrared and ultraviolet-visible spectra, surface-zeta charges, inductively coupled plasma atomic emission spectroscopy, scanning electron microscopy and transmission electron microscopy. The results demonstrated that the anatase TiO2 nanoparticles in size of around 5.06 nm were uniformly dispersed on the mesoporous surface of BMMs. The resultant TiO2/BMMs as photo-catalyst had extensive effect on degradation performances (93.6 %) of alizarin red dye in aqueous solution, in which the effects of various parameters, such as pH, dose, and pollutant concentration on the adsorption capacity and further photo-degradation were explored. Meanwhile, the reused photocatalyst after five successive cycles presented a higher activity with degradation up to 61.1 %, suggesting a good stability of newly synthesized catalyst.
关键词 ：
Anatase TiO2 Anatase TiO2 Nanostructures Nanostructures Mesoporous materials Mesoporous materials Degradation Degradation Alizarin red Alizarin red
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| GB/T 7714 | Gul, Anadil , Sun, Jihong , Ullah, Raza et al. Incorporation of Anatase TiO2 to Highly Porous Silica (BMMs) for Photo-Degradation of Alizarin Red Dye in Aqueous Solution [J]. | CHEMISTRYSELECT , 2021 , 6 (26) : 6816-6825 . |
| MLA | Gul, Anadil et al. "Incorporation of Anatase TiO2 to Highly Porous Silica (BMMs) for Photo-Degradation of Alizarin Red Dye in Aqueous Solution" . | CHEMISTRYSELECT 6 . 26 (2021) : 6816-6825 . |
| APA | Gul, Anadil , Sun, Jihong , Ullah, Raza , Munir, Tallat , Bai, Shiyang . Incorporation of Anatase TiO2 to Highly Porous Silica (BMMs) for Photo-Degradation of Alizarin Red Dye in Aqueous Solution . | CHEMISTRYSELECT , 2021 , 6 (26) , 6816-6825 . |
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摘要 ：
In this study, we synthesized pH-sensitive thiamethoxam-3-(2-aminoethylamino) propyl-bimodal mesoporous silica (P/Thi-NN-BMMs) nanoparticles (NPs). We used this bimodal mesoporous silica (BMMs) mesoporous material as a carrier based on the principle of free radical polymerization. The size of the P/Thi-NN-BMMs NPs was about 891.7 ± 4.9 nm, with a zeta potential of about -25.7 ± 2.5 mV. X-ray powder diffraction analysis, N2-sorption measurements and thermogravimetric analysis indicated that thiamethoxam (Thi) was loaded into the pores of the mesoporous structure and that the mesopore surface was coated with polyacrylic acid (PAA). The loading rate of P/Thi-NN-BMMs was about 25.2%. The controlled-release NPs had excellent anti-photolysis performance and storage stability. The NPs showed significant pH sensitivity, and the Thi release rate in pH 10.0 phosphate buffer was higher than those in pH 7.4 and pH 3.0 phosphate buffers. We described the sustained-release curves according to the Weibull model. The relative toxicity of P/Thi-NN-BMMs against peach aphid was 1.44 times that of commercial Thi. This provides a promising instrument for effective insect control and environment protection.
关键词 ：
bimodal mesoporous silica bimodal mesoporous silica controlled-release controlled-release nanoparticle nanoparticle pesticide pesticide pH-sensitive pH-sensitive
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| GB/T 7714 | Li Wenjing , Wang Qi , Zhang Fang et al. pH-sensitive thiamethoxam nanoparticles based on bimodal mesoporous silica for improving insecticidal efficiency. [J]. | Royal Society open science , 2021 , 8 (2) : 201967 . |
| MLA | Li Wenjing et al. "pH-sensitive thiamethoxam nanoparticles based on bimodal mesoporous silica for improving insecticidal efficiency." . | Royal Society open science 8 . 2 (2021) : 201967 . |
| APA | Li Wenjing , Wang Qi , Zhang Fang , Shang Hui , Bai Shiyang , Sun Jihong . pH-sensitive thiamethoxam nanoparticles based on bimodal mesoporous silica for improving insecticidal efficiency. . | Royal Society open science , 2021 , 8 (2) , 201967 . |
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摘要 ：
Different preparation routes for TiO2-supported natural and synthetic clinoptilolite (TiO2/CP) composites were thoroughly investigated on the basis of sol-gel, hydrothermal, and in-situ hydrothermal methods. The micro-structural features and physicochemical properties of resultant TiO2/CPs were characterized via X-ray diffraction patterns, scanning (transmission) electron microscope images, Fourier transform infrared spectra, inductively coupled plasma-optical emission spectrometry methods, BET-isotherms, UV-visible spectra, and surface charge potential distributions. The results showed that in-situ hydrothermal method led to well dispersions of loaded-TiO(2 )particles on the surface of leaf-like CP, while obviously aggregated TiO(2 )on a relatively distorted structure of CP was obtained using sol-gel and hydrothermal methods. Their adsorptive and photocatalytic efficiencies for removal of crystal violet (CV) dye in aqueous solution were also explored under UV-irradiations. The results demonstrated that TiO2/CPs synthesized via sol-gel and in-situ hydrothermal methods presented the excellent performances with 98% removal efficiencies as compare to the bare commercial TiO2 which achieved 53% removal of CV dye. While, the in-situ hydrothermally synthesized TiO2/CPs were the best due to their moderate energy cost, highest adsorption capacities and removal efficiencies. Particularly, the synthetic CPs as supports exhibited synergetic photocatalytic activities for the degradation of CV dye, which is attributed to their high surface areas, better adsorption capability, and fine dispersion of TiO2 particles. Adsorption and degradation kinetics of CV dye were found to follow the pseudo-second and pseudo-first order models, respectively. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
关键词 ：
Adsorption Adsorption Crystal violet Crystal violet Degradation Degradation Synthesis Synthesis TiO2 TiO2 Zeolite Zeolite
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| GB/T 7714 | Ullah, Raza , Sun, Jihong , Gul, Anadil et al. Evaluations of physico-chemical properties of TiO2/clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2021 , 33 : 181-189 . |
| MLA | Ullah, Raza et al. "Evaluations of physico-chemical properties of TiO2/clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 33 (2021) : 181-189 . |
| APA | Ullah, Raza , Sun, Jihong , Gul, Anadil , Munir, Tallat , Wu, Xia . Evaluations of physico-chemical properties of TiO2/clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2021 , 33 , 181-189 . |
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摘要 ：
In this study, boscalid silica nanosphere nanoparticles (Bos@SNS/t Nps) and boscalid bimodal mesoporous silicas material nanoparticles (Bos@BMMs Nps) were prepared using two different methods. A comparative study on characteristics and properties of two nanospheres were conducted. Both nanoparticles had spherical shapes with average diameters of 719.3 +/- 6.3 nm (Bos@BMMs) Nps and 981.3 +/- 4.8 nm (Bos@SNS/t) Nps. The structures of nanoparticles were characterized by scanning electron microscopy, X-ray diffraction, dynamic light scattering laser particle-size analysis, and fourier transform infrared spectroscopy, indicating that Nps had a well-defined core-shell construction for efficient loading of Bos. The loading rates of Bos@BMMs and Bos@SNS/t Nps were 25.2 +/- 2.3% and 27.3 +/- 3.6%, respectively. The nanoparticles had obvious pH sensitivity, and the release of Bos in pH 9.0 was higher than those in pH 7.0 and pH 4.0. No significant difference in the release behavior of nanocomposites was found, and the release models were fitted with the Weibull equation. Finally, the bioactivity of the Bos-loaded nanocomposite was measured against Rhizoctonia solani, which showed that the fungicidal efficacy of Bos@SNS/t was slightly better than that of Bos@BMMs.
关键词 ：
sustained release sustained release boscalid boscalid Nanoparticle Nanoparticle mesoporous silicas mesoporous silicas
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| GB/T 7714 | Li, Wenjing , Xu, Xuewan , Pan, Hua et al. Comparative study on two different methods for fabrication of sustained release boscalid based on mesoporous silica [J]. | MATERIALS RESEARCH EXPRESS , 2021 , 8 (4) . |
| MLA | Li, Wenjing et al. "Comparative study on two different methods for fabrication of sustained release boscalid based on mesoporous silica" . | MATERIALS RESEARCH EXPRESS 8 . 4 (2021) . |
| APA | Li, Wenjing , Xu, Xuewan , Pan, Hua , Wu, Litao , Bai, Shiyang , Sun, Jihong et al. Comparative study on two different methods for fabrication of sustained release boscalid based on mesoporous silica . | MATERIALS RESEARCH EXPRESS , 2021 , 8 (4) . |
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