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| 1 | 纳凝胶的制备、性能及应用进展显示文摘纳凝胶(nanogels)具有比表面积大、负载量高、分散稳定、刺激响应性等优点,在生物医药、化工和新材料等领域有广阔的应用前景。本文对制备纳凝胶的物理和化学交联等常规方法及微流控、电喷射、电芬顿法等新方法进行了综述,阐述了各种方法的制备原理与优缺点;对纳凝胶的生物相容性和降解性、溶胀性、稳定性等基本性能作了介绍,特别对其刺激响应性作了重点调研;并对其在药物控释、生物传感器、酶固定化、分子成像、增塑剂、水处理等方面的应用研究进展进行了归纳。最后结合纳凝胶在制备方法及应用中存在的实际问题,指出新型凝胶基质、纳凝胶表面改性及绿色可控制备方法等是今后纳凝胶研究的重要方向。 | 刘流 张颂红 贠军贤 姚克俭 | 2018 | 化工进展2018，37，12： | 1 |
| 2 | Synthesis of novel magnetic sulfur-doped Fe_3O_4 nanoparticles for efficient removal of Pb(Ⅱ)显示文摘In this work, we report the synthesis of magnetic sulfur-doped Fe_3O_4 nanoparticles (Fe_3O_4:S NPs) with a novel simple strategy,which includes low temperature multicomponent mixing and high temperature sintering. The prepared Fe_3O_4:S NPs exhibit a much better adsorption performance towards Pb(Ⅱ) than bare Fe_3O_4 nanoparticles. FTIR, XPS, and XRD analyses suggested that the removal mechanisms of Pb(Ⅱ) by Fe_3O_4:S NPs were associated with the process of precipitation (formation of PbS), hydrolysis,and surface adsorption. The kinetic studies showed that the adsorption data were described well by a pseudo second-order kinetic model, and the adsorption isotherms could be presented by Freundlich isotherm model. Moreover, the adsorption was not significantly affected by the coexisting ions, and the adsorbent could be easily separated from water by an external magnetic field after Pb(Ⅱ) adsorption. Thus, Fe_3O_4:S NPs are supposed to be a good adsorbents for Pb(Ⅱ) ions in environmental remediation. | Xueqiong Huang Long Kong Shouqiang Huang Min Liu Liang Li | 2018 | Science China Chemistry2018，61，2： | 0 |
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