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A superhydrophobic material was prepared by a simple and easily accessed sol-gel method using epoxy resin (E-51) and γ-aminopropyltriethoxysilane (KH-550) as the precursors, aqueous ammonia (NH4OH) as the catalyst and hydrogenated silicone oil (PMHS) as the hydrophobic modifier, and then pelleting the final product. The morphologies, surface chemical properties and thermal stability of the superhydrophobic bulk materials were characterized by scanning electron microscopy, Fourier infrared spectrometry and thermal analyzer. The hydrophobic properties and repairability of the as-prepared materials were also studied. The results showed that the prepared epoxy resin-hydrogenated silicone oil bulk materials were composed of tightly bound nanoparticles with a size of 50–100 nm in diameter. The material showed excellent superhydrophobic properties with a surface contact angle of 152°. The material also had good thermal resistance with a heat-resistant temperature of 300 °C and showed good repairability. The epoxy resin-hydrogenated silicone oil bulk superhydrophobic material exhibited excellent performance and showed wide application prospects.
Kui Zheng; Jie Zhu; Haifeng Liu; Xingquan Zhang; Enze Wang. Study on the Superhydrophobic Properties of an Epoxy Resin-Hydrogenated Silicone Oil Bulk Material Prepared by Sol-Gel Methods. Materials 2021, 14, 988 .
AMA StyleKui Zheng, Jie Zhu, Haifeng Liu, Xingquan Zhang, Enze Wang. Study on the Superhydrophobic Properties of an Epoxy Resin-Hydrogenated Silicone Oil Bulk Material Prepared by Sol-Gel Methods. Materials. 2021; 14 (4):988.
Chicago/Turabian StyleKui Zheng; Jie Zhu; Haifeng Liu; Xingquan Zhang; Enze Wang. 2021. "Study on the Superhydrophobic Properties of an Epoxy Resin-Hydrogenated Silicone Oil Bulk Material Prepared by Sol-Gel Methods." Materials 14, no. 4: 988.
The effect of V2O5 addition on molybdates crystallization tendency, glass structure and chemical durability of aluminoborosilicate glass belonging to SiO2-B2O3-CaO-Na2O-Al2O3-MoO3 system has been studied. The results confirm that V2O5 addition can effectively suppress the crystallization tendency of powellite and enhance the molybdenum solubility in the glass. The MoO3 solubility limit is found to be 2.8 mol% in the V2O5-containing aluminoborosilicate glass. Raman results reveal that V2O5 addition seems to modify the local structural environment of isolated MoO4 units and increase their chemical disorder in the glass, which is favored for molybdenum incorporation in the glass. The molar volume and glass transition temperature of samples are found to depend on V2O5 content. Product consistency test (PCT) results show that the normalized leaching rates of the V2O5-containing aluminoborosilicate glass maintain at a fairly low level compared with standard borosilicate glassy waste form.
Qihui Lian; Xingquan Zhang; Hongjia Ji; Pengpeng Yu; Xiaofeng Guo; Wei Wan; Haifeng Liu; Kui Zheng; Yongchang Zhu; Haibin Wang; Jichuan Huo. Effect of V2O5 on crystallization tendency and chemical durability of Mo-bearing aluminoborosilicate glass. Materials Research Express 2020, 7, 045201 .
AMA StyleQihui Lian, Xingquan Zhang, Hongjia Ji, Pengpeng Yu, Xiaofeng Guo, Wei Wan, Haifeng Liu, Kui Zheng, Yongchang Zhu, Haibin Wang, Jichuan Huo. Effect of V2O5 on crystallization tendency and chemical durability of Mo-bearing aluminoborosilicate glass. Materials Research Express. 2020; 7 (4):045201.
Chicago/Turabian StyleQihui Lian; Xingquan Zhang; Hongjia Ji; Pengpeng Yu; Xiaofeng Guo; Wei Wan; Haifeng Liu; Kui Zheng; Yongchang Zhu; Haibin Wang; Jichuan Huo. 2020. "Effect of V2O5 on crystallization tendency and chemical durability of Mo-bearing aluminoborosilicate glass." Materials Research Express 7, no. 4: 045201.
The liquefaction of biomass is an important technology to converse the biomass into valuable biofuel. The common technologies for liquefaction of biomass are indirect liquefaction and direct liquefaction. The indirect liquefaction refers to the Fischer–Tropsch (F–T) process using the syngas of biomass as the raw material to produce the liquid fuel, including methyl alcohol, ethyl alcohol, and dimethyl ether. The direct liquefaction of biomass refers to the conversion biomass into bio-oil, and the main technologies are hydrolysis fermentation and thermodynamic liquefaction. For thermodynamic liquefaction, it could be divided into fast pyrolysis and hydrothermal liquefaction. In addition, this review provides an overview of the physicochemical properties and common upgrading methods of bio-oil.
Shiqiu Zhang; Xue Yang; Haiqing Zhang; Chunli Chu; Kui Zheng; Meiting Ju; Le Liu. Liquefaction of Biomass and Upgrading of Bio-Oil: A Review. Molecules 2019, 24, 2250 .
AMA StyleShiqiu Zhang, Xue Yang, Haiqing Zhang, Chunli Chu, Kui Zheng, Meiting Ju, Le Liu. Liquefaction of Biomass and Upgrading of Bio-Oil: A Review. Molecules. 2019; 24 (12):2250.
Chicago/Turabian StyleShiqiu Zhang; Xue Yang; Haiqing Zhang; Chunli Chu; Kui Zheng; Meiting Ju; Le Liu. 2019. "Liquefaction of Biomass and Upgrading of Bio-Oil: A Review." Molecules 24, no. 12: 2250.
In this paper, nano-montmorillonite (nano-MMT) was introduced into the microbial mineralization system of strontium carbonate (SrCO3). By changing the nano-MMT concentration and the mineralization time, the mechanism of mineralization was studied. SrCO3 superstructures with complex forms were acquired in the presence of nano-MMT as a crystal growth regulator. At low concentrations of nano-MMT, a cross-shaped SrCO3 superstructure was obtained. As the concentration increased, flower-like SrCO3 crystals formed via the dissolution and recrystallization processes. An emerging self-assembly process and crystal polymerization mechanism have been proposed by forming complex flower-like SrCO3 superstructures in high concentrations of nano-MMT. The above research indicated that unique bionic synthesis strategies in microbial systems could not only provide a useful route for the production of inorganic or inorganic/organic composites with a novel morphology and unique structure but also provide new ideas for the treatment of radionuclides.
Kui Zheng; Tao Chen; Jian Zhang; Xiuquan Tian; Huilin Ge; Tiantao Qiao; Jia Lei; Xianyan Li; Tao Duan; Wenkun Zhu. Nano-Montmorillonite Regulated Crystallization of Hierarchical Strontium Carbonate in a Microbial Mineralization System. Materials 2019, 12, 1392 .
AMA StyleKui Zheng, Tao Chen, Jian Zhang, Xiuquan Tian, Huilin Ge, Tiantao Qiao, Jia Lei, Xianyan Li, Tao Duan, Wenkun Zhu. Nano-Montmorillonite Regulated Crystallization of Hierarchical Strontium Carbonate in a Microbial Mineralization System. Materials. 2019; 12 (9):1392.
Chicago/Turabian StyleKui Zheng; Tao Chen; Jian Zhang; Xiuquan Tian; Huilin Ge; Tiantao Qiao; Jia Lei; Xianyan Li; Tao Duan; Wenkun Zhu. 2019. "Nano-Montmorillonite Regulated Crystallization of Hierarchical Strontium Carbonate in a Microbial Mineralization System." Materials 12, no. 9: 1392.
Bisphenol S (BPs) has been found in a variety of common consumer products surrounding human living, despite the fact that it could damage the human digestive system and genital system. In China, straw-returning to the field is a common soil improvement technology used to increase the concentration of dissolved organic matter (DOM), which plays an important role in the natural environment as a microreactor of contaminants. Additionally, the biochar obtained by the straw is an effective soil conditioner. DOM is a key influencing factor when biochar is employed as the conditioner of BPs contaminated soil. However, the BPs adsorption behavior on the Ferralsol affected by DOM and biochar is also unclear. Hence, DOM was prepared and the effect of DOM on the BPs adsorption behavior on soil and biochar modified soil was investigated. DOM was characterized by Elemental analysis, Fourier transforming infrared spectra (FT-IR), and three-dimensional excitation-emission matrix spectra (3D-EEM). The results of the adsorption experiments indicated that both biochar and DOM could improve the BPs adsorption capacity in Ferralsol, while DOM suppressed the BPs adsorption capacity of biochar modified soil, indicating that DOM and BPs could not be applied at the same time for BPs adsorption.
Shiqiu Zhang; Xue Yang; Le Liu; Kui Zheng; Meiting Ju; Jinpeng Liu. Bisphenol S Adsorption Behavior on Ferralsol and Biochar Modified Soil with Dissolved Organic Matter. International Journal of Environmental Research and Public Health 2019, 16, 764 .
AMA StyleShiqiu Zhang, Xue Yang, Le Liu, Kui Zheng, Meiting Ju, Jinpeng Liu. Bisphenol S Adsorption Behavior on Ferralsol and Biochar Modified Soil with Dissolved Organic Matter. International Journal of Environmental Research and Public Health. 2019; 16 (5):764.
Chicago/Turabian StyleShiqiu Zhang; Xue Yang; Le Liu; Kui Zheng; Meiting Ju; Jinpeng Liu. 2019. "Bisphenol S Adsorption Behavior on Ferralsol and Biochar Modified Soil with Dissolved Organic Matter." International Journal of Environmental Research and Public Health 16, no. 5: 764.
Biochar is an excellent absorbent for most heavy metal ions and organic pollutants with high specific surface area, strong aperture structure, high stability, higher cation exchange capacity and rich surface functional groups. To improve the selective adsorption capacity of biochar to designated heavy metal ions, biochar prepared by agricultural waste is modified via Ionic-Imprinted Technique. Fourier transform infrared (FT-IR) spectra analysis and X-ray photoelectron spectroscopy (XPS) analysis of imprinted biochar (IB) indicate that 3-Mercaptopropyltrimethoxysilane is grafted on biochar surface through Si–O–Si bonds. The results of adsorption experiments indicate that the suitable pH range is about 3.0–8.0, the dosage is 2.0 g·L−1, and the adsorption equilibrium is reached within 960 min. In addition, the data match pseudo-second-order kinetic model and Langmuir model well. The computation results of adsorption thermodynamics and stoichiometric displacement theory of adsorption (SDT-A) prove that the adsorption process is spontaneous and endothermic. Finally, IB possesses a higher selectivity adsorption to Cd(II) and a better reuse capacity. The functionalized biochar could solidify designated ions stably.
Shiqiu Zhang; Xue Yang; Le Liu; Meiting Ju; Kui Zheng. Adsorption Behavior of Selective Recognition Functionalized Biochar to Cd(II) in Wastewater. Materials 2018, 11, 299 .
AMA StyleShiqiu Zhang, Xue Yang, Le Liu, Meiting Ju, Kui Zheng. Adsorption Behavior of Selective Recognition Functionalized Biochar to Cd(II) in Wastewater. Materials. 2018; 11 (2):299.
Chicago/Turabian StyleShiqiu Zhang; Xue Yang; Le Liu; Meiting Ju; Kui Zheng. 2018. "Adsorption Behavior of Selective Recognition Functionalized Biochar to Cd(II) in Wastewater." Materials 11, no. 2: 299.