Jingyi Luo
University of Science and Technology of China
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Publication
Featured researches published by Jingyi Luo.
Journal of Physical Chemistry B | 2011
Yonghui Wu; Jingyi Luo; Cuiming Wu; Tongwen Xu; Yanxun Fu
Bionic multisilicon copolymers have long-main chains and many branched chains, and contain multifunctional groups of -N(+)(CH(3))(3)Cl(-) and -Si(OCH(3))(3), which are similar to the stem, branch, fruit, and acetabula of a vine from bionic aspect, respectively. They have high flexibility, charge density, and cross-linking ability and thus can be used as novel cross-linking agents for preparing anion-exchange hybrid membranes. High content of -Si(OCH(3))(3) groups (68-78%) is suitable to enhance membrane stabilities. The membranes are stable in 65 °C water up to 120 h and can keep integrity in 2 mol/L NaOH for 192 h. High content of -N(+)(CH(3))(3)Cl(-) groups (42-55%) is suitable to enhance membrane electrical properties. The membranes have low membrane resistance (R(m), 0.59-0.94 Ω cm(2)) and high diffusion dialysis performance. The acid (H(+)) dialysis coefficients (U(H)) are in the range of 0.007-0.075 m h(-1) at room temperature and 0.015-0.115 m h(-1) at 40 °C. The separation factor (S(H/Fe)) can reach up to 43 at room temerature and 49 at 40 °C. All of the membranes are highly homogeneous, mechanically stable (21-31 MPa, 25-147%), and thermally stable (227-275 °C for halide form membranes, and 157-172 °C for OH(-) form membranes). Hence, the investigation of multisilicon copolymers will give rise to a new developing field in material and membrane sciences.
Journal of Hazardous Materials | 2013
Jianwen Hao; Ming Gong; Yonghui Wu; Cuiming Wu; Jingyi Luo; Tongwen Xu
By changing -COOH content in poly(acrylic acid-co-methacryloxypropyl trimethoxy silane (poly(AA-co-γ-MPS)), a series of PVA/SiO(2) cation exchange membranes are prepared from sol-gel process of poly(AA-co-γ-MPS) in presence of poly(vinyl alcohol) (PVA). The membranes have the initial decomposition temperature (IDT) values of 236-274 °C. The tensile strength (TS) ranges from 17.4 MPa to 44.4 MPa. The dimensional stability in length (DS-length) is in the range of 10%-25%, and the DS-area is in the range of 21%-56% in 65 °C water. The water content (W(R)) ranges from 61.2% to 81.7%, the ion exchange capacity (IEC) ranges from 1.69 mmol/g to 1.90 mmol/g. Effects of -COOH content on diffusion dialysis (DD) performance also are investigated for their potential applications. The membranes are tested for recovering NaOH from the mixture of NaOH/Na(2)WO(4) at 25 - 45 °C. The dialysis coefficients of NaOH (U(OH)) are in the range of 0.006-0.032 m/h, which are higher than those of the previous membranes (U(OH): 0.0015 m/h, at 25 °C). The selectivity (S) can reach up to 36.2. The DD performances have been correlated with the membrane structure, especially the continuous arrangement of -COOH in poly(AA-co-γ-MPS) chain.
Journal of Membrane Science | 2010
Jingyi Luo; Cuiming Wu; Yonghui Wu; Tongwen Xu
Fuel and Energy Abstracts | 2011
Jingyi Luo; Cuiming Wu; Tongwen Xu; Yonghui Wu
Journal of Membrane Science | 2010
Cuiming Wu; Yonghui Wu; Jingyi Luo; Tongwen Xu; Yanxun Fu
Journal of Membrane Science | 2013
Yonghui Wu; Jingyi Luo; Liliang Zhao; Gencheng Zhang; Cuiming Wu; Tongwen Xu
Journal of Membrane Science | 2012
Yonghui Wu; Jingyi Luo; Lulu Yao; Cuiming Wu; Fulin Mao; Tongwen Xu
Journal of Membrane Science | 2011
Xinle Xiao; Cuiming Wu; Peng Cui; Jingyi Luo; Yonghui Wu; Tongwen Xu
Fuel and Energy Abstracts | 2011
Hui Wang; Cuiming Wu; Yonghui Wu; Jingyi Luo; Tongwen Xu
Journal of Membrane Science | 2011
Xu Zhang; Chuanrun Li; Yaoming Wang; Jingyi Luo; Tongwen Xu