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| 1 | Nanoencapsulation of arsenate with nanoscale zero-valent iron(nZVI):A 3D perspective显示文摘The principal forces driving the efficient enrichment and encapsulation of arsenic(As) into nanoscale zero-valent iron(nZVI) are the disordered arrangement of the atoms and the gradient chemical potentials within the core-shell interface. The chemical compositions and the fine structure of nZVI are characterized with a combination of spherical aberration corrected scanning transmission electron microscopy(Cs-STEM), X-ray energy-dispersive spectroscopy(XEDS), electron energy loss spectroscopy(EELS), and high-resolution X-ray photoelectron spectroscopy(HR-XPS). Atomically resolved EELS at the oxygen K-edge unfolds that the Fe species in nZVI are well stratified from Fe(Ⅲ) oxides in the outermost periphery to a mixed Fe(Ⅲ)/Fe(Ⅱ) interlayer, then Fe(Ⅱ) oxide and the pure Fe(0) phase. Reactions between As(Ⅴ)and nZVI suggest that a well-structured local redox gradient exists within the shell layer, which serves as a thermodynamically favorable conduit for electron transfer from the iron core to the surface-bound As(Ⅴ). HR-XPS with ion sputtering shows that arsenic species shift from As(Ⅴ), As(Ⅲ)/As(Ⅴ) to As(Ⅴ)/As(Ⅲ)/As(0) from the iron oxide shell–water interface to the Fe(0) core. Results reinforce previous work on the efficacy of nZVI for removing and remediating arsenic while the analytical TEM methods are also applicable to the study of environmental interfaces and surface chemistry. | Airong Liu Wei Wang Jing Liu Rongbing Fu Wei-xian Zhang | 2018 | Science Bulletin2018，63，24： | 8 |
| 2 | Removal of decabromodiphenyl ether (BDE-209) by sepiolite-supported nanoscale zerovalent iron显示文摘当一个支持者被用来调查移动动力学和 decabromodiphenyl 醚(BDE-209 ) 的机制, Nanoscale zerovalent 铁(nZVI ) 综合了使用海泡石。BDE-209 被准备支持海泡石的 nZVI 很快与因为它的高表面区域和反应,比通常准备的 nZVI 的大 5 倍的反应率移开。BDE-209 的降级以一种逐步的 debromination 方式发生了,它跟随了伪 first-order 动力学。BDE-209 的移动效率与增加支持海泡石的 nZVI 粒子和减少的 pH 的剂量增加了,并且效率与增加起始的 BDE-209 集中减少了。tetrahydrofuran (THF ) 的存在作为在水里的某些体积部分的 cosolvent 影响了支持海泡石的 nZVI 的降级率。有支持海泡石的 nZVI 的 BDE-209 的 Debromination 小径基于识别反应中介被建议,它在碱的条件下面在酸的条件和 nonato penta-BDEs 下面从 nona-到 mono-brominated diphenylethers (BDE ) 。支持海泡石的 nZVI 粒子上的吸附也在 BDE-209 的移动起了一个作用。我们的调查结果显示粒子在移开环境污染物质有潜在的应用,例如 halogenated 器官的沾染物。 | Rongbing FU Na MU Xiaopin GUO Zhen XU Dongsu BI | 2015 | Frontiers of Environmental Science & Engineering2015，9，5： | 3 |
| 3 | Enchytraeidae Fridericia bulbosa as a new test species for soil ecotoxicity assessment显示文摘 | Daoli Yang Jiang Zhu Rongbing Fu Wenhua Wang Xiaopin Guo Zhenqi Wang Hongwei Yao | 2012 | Chemosphere2012，，4： | 1 |
| 4 | Lipopolysaccharide/Toll-like receptor 4 signaling pathway involved Qingdu decoction treating severe liver injury merging with endotoxemia显示文摘OBJECTIVE: To investigate the protective effects and underlying mechanism of Qingdu decoction(QDD) on experimental rats with severe liver injury induced by thioacetamide(TAA).METHODS: A total of 40 Wistar rats were randomly divided into normal group(n = 10) and experimental group(n = 30). Rats were administrated the same content of saline in normal group. The rats inthe experimental group were pretreated with TAA at dose of 12 mg/kg lasting 8 weeks, and from 9th week to 12 th week, with TAA at concentration of 36mg/kg. During the 9th week to 12 th week period,the rats were randomly divided into three subgroups(n = 10 each) simultaneously based on the treatment categories: model group, lactulose(LA,3.5 m L/kg) group and QDD(5.95 g/kg) group, orally once per day respectively. At the 12 th week, the content of serum alanine transaminase(ALT), aspartate transaminase(AST), total bilirubin(TBIL), endotoxin(ET) and tumor necrosis factor α(TNF-α) was detected by automatic biochemical analyzer. The plasma prothrombin time(PT), prothrombin time-international normalized ratio(PTR) and prothrombin time activity(PTA) were measured by automatic coagulation analyzer. The level of lipopolysaccharide(LPS)-binding protein(LBP), cluster differentiation 14(CD14) and Toll-like receptor 4(TLR4) expressions was measured by both western blot(WB) and real-time polymerase chain reaction(real-time PCR).RESULTS: Compared with the model group, hepatic morphology in the QDD group was improved under light microscope and transmission electron microscope; at the same time, the contents of serum ALT, AST, TBIL, ET and TNF-α, and level of LBP, CD14 and TLR4 expressions in liver tissues were significantly decreased compared with the model group(P < 0.05), while PTA in the QDD group was enhanced(P < 0.05).CONCLUSION: QDD has the functional effect on improving the injured liver through inhibiting the LPS/TLR4 signaling pathway thus decreasing the level of the inflammatory medicators. | Cao Wubing Du Yuqiong Gao Lianyin Che Niancong Zhang Qiuyun Fu Xiuwen Luo Jiajia Wang Rongbing | 2017 | Journal of Traditional Chinese Medicine2017，37，3： | 0 |
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