Energy And Environmental Engineering : Photoelectrocatalytic Degradation of Phenol Using a TiO2/Ni Thin-film Electrode

( Yan Xiaoli ),( Shi Huixiang ),( Wang Dahui ) 한국화학공학회 2003 Korean Journal of Chemical Engineering Vol.20 No.4

As a new type of photoelectrode, TiO₂/Ni thin-film electrode was prepared by dip-coating technique. The structural and surface morphology of electrode was examined by X-ray diffraction (XRD) and scanning electron microscope (SEM). Effects of initial phenol concentration, pH value, number of film layers, voltage of electrical bias applied, variation of inorganic salt type and types of dissolved gas on the photoelectrocatalytic (PEC) degradation of phenol using ultraviolet (UV) illuminated TiO₂/Ni thin-film electrode were investigated. The mechanism of PEC degradation of phenol was also studied by analyzing reaction intermediates.

Photoelectrocatalytic Degradation of Phenol Using a TiO₂/Ni Thin-film Electrode

Xiaoli, Yan,Huixiang, Shi,Dahui, Wang 한국화학공학회 2003 Korean Journal of Chemical Engineering Vol.20 No.4

As a new type of photoelectrode, TiO₂/Ni thin-film electrode was prepared by dip-coating technique. The structural and surface morphology of electrode was examined by X-ray diffraction (XRD) and scanning electron microscope (SEM). Effects of initial phenol concentration, pH value, number of film layers, voltage of electrical bias applied, variation of inorganic salt type and types of dissolved gas on the photoelectrocatalytic (PEC) degradation of phenol using ultraviolet (UV) illuminated TiO₂/Ni thin-film electrode were investigated. The mechanism of PEC degradation of phenol was also studied by analyzing reaction intermediates.

Comparison of the Nutritional Composition of Bullfrog Meat from Different Parts of the Animal

Yanli Zhu,Min Bao,Chong Chen,Xiaoli Yang,Wenliang Yan,Fazheng Ren,Pengjie Wang,Pengcheng Wen 한국축산식품학회 2021 한국축산식품학회지 Vol.41 No.6

The objective of this study was to evaluate the nutritional content of bullfrog meat from different parts of the animal, including fore-chest, thigh and calf. Bullfrog meat was found to be a rich source of proteins, essential amino acids and minerals, but with a low fat content, compared with other aquatic meat products. There was no significant difference (p>0.05) between thigh and calf in mineral content (K, P, Na, Mg, Ca, Zn, Fe, Cu, and Mn), but the contents of K, P, and Mg were higher in thigh and calf than in the fore-chest (p<0.05). The salt-soluble, water-soluble and insoluble protein bands in sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) electrophoresis, from fore-chest, thigh and calf were similar, with the most abundant bands being 35 kDa (salt-soluble protein), 35-48 kDa (water-soluble protein) and 48 kDa (insoluble protein). The results showed that the insoluble protein content in the fore-chest meat was higher than that in the thigh meat and calf meat, but the salt-soluble protein fraction was the most abundant in thigh meat. These results showed that the nutrients in different parts of bullfrog meat were different.

PRECURSORS-DECOMPOSITED SYNTHESIS AND VISIBLE-LIGHT-RESPONSE PHOTOCATALYSTIC PROPERTIES OF UNIFORM POROUS Bi 2 O 3 NANOSPHERES

XIAOLI SUN,JIANGGUO GUAN,WEIDONG SHI,HAO TU,LEILEI XU,YAN YAN 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2014 NANO Vol.9 No.6

The Bi 2 O 3 sphere-like precursors were ¯rst synthesized through a simple hydrothermal reactionin the mixture of sodium cholate (SC) and hydrogen peroxide. Thermal decomposition of theseprecursors would result in the formation of the uniform porous Bi 2 O 3 nanospheres with diametersof ca. 80 nm in air at 500?C. The amount of added H 2 O 2 and the reaction time were found to playimportant roles in the formation of Bi 2 O 3 sphere-like precursors. The as-prepared porous Bi 2 O 3nanospheres exhibited a very excellent photocatalytic activity for the degradation of rhodamineB (RB) and methyl blue (MB) dyes under visible-light irradiation, which could be attributed totheir narrow band gap and high surface area.

Dynamics and Liver Disease Specific Aspects of Quality of Life Among Patients with Chronic Liver Disease in Yunnan, China

Che, Yan-Hua,You, Jing,Chongsuvivatwong, Virasakdi,Li, Li,Sriplung, Hucha,Yan, Yuan-Zhi,Ma, Si-Jia,Zhang, Xiaoli,Shen, Ting,Chen, He-Min,Rao, Shao-Feng,Zhang, Ru-Yi Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.12

Background: Patients with chronic liver diseases (CLD) may have compromised health related quality of life (HRQoL). Hepatitis B virus (HBV) infection has long been the leading cause of CLD including liver cancer and cirrhosis. Knowledge on different symptom profiles of CLD should help in development of comprehensive treatment and patient care plans. Objective: To access the facets of HRQoL in chronic liver diseases throughout their spectrum of severity. Materials and Methods: A cross-sectional study was conducted in the First Affiliated Hospital of Kunming Medical University in Yunnan Province of China. Both out- and inpatients undergoing treatment protocols for different HBV related liver disease states were consecutively collected from December 2012 to June 2013. ANOVA was used to compare the mean scores of EQ-5D and chronic liver disease questionnaire (CLDQ) among 5 disease groups. The relationship between demographic variables predicting global CLDQ scores and the domains of CLDQ was analysed. Results: A total of 1040 patients including 520 without complications, 91 with compensated cirrhosis, 198 with decompensated cirrhosis, 131 with HCC and 100 with liver failure were recruited. All domains of CLDQ, the means of EQ-5D value and EQ VAS exhibited significant decline with worsening of disease severity from uncomplicated HBV to liver failure. The multivariate regression demonstrated the reduction of mean scores of CLDQ domain at advanced stage. Patients with liver failure and HCC had more HRQoL impairment than other disease states. No effect of patient gender was found. Patient age was associated with 'fatigue' and 'worry' domains (p=0.006; p=0.004) but not with other domains and global scores of CLDQ and ED-5D. Conclusions: The HRQoL in chronic hepatitis B patients is greatly affected by disease states. Care for HBV-related diseases should consider not only the outcomes of treatment strategies but also improvement in patient wellbeing.

The Prebiotic Lactosucrose Modulates Gut Metabolites and Microbiota in Intestinal Inflammatory Rats

Xiaoli Zhou,Zheng Ruan,Xiaoliu Huang,Yan Zhou,Shiqiang Liu,Yulong Yin 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.1

The effect of lactosucrose on the short chainfatty acid (SCFA) content, the intestinal flora, the acidity,and the amino nitrogen (NH3-N) content of the intestine ininflammatory bowel disease (IBD) rats was investigated. Dietary lactosucose supplementation increased amounts ofbeneficial bacteria and diminished amounts of pathogenicbacteria. Lactosucrose decreased the NH3-N content in cecaland colonic digesta, compared to inflammatory rats. Lactosucrose increased the acidity in the intestinal lumen,and the acetic acid, propionic acid, and butyric acidcontents in cecal and colonic digesta, compared toinflammatory rats. The butyrate content in the lactosucrosegroup was higher than for the inflammatory, sulfasalazine,and normal groups. Lactosucrose promoted beneficialintestinal health and prevented intestinal inflammation.

Constructing mixed matrix membranes for CO2 separation based on light lanthanide fluoride nanosheets with mesoporous structure

Yanli Zhang,Meixue Zhao,Xu Li,Qingping Xin,Xiaoli Ding,Lizhi Zhao,Hui Ye,Ligang Lin,Hong Li,Yuzhong Zhang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.125 No.-

The incorporation of porous nano-fillers into mixed matrix membranes (MMMs) has a great impact onCO2 separation. In this study, a series of F-Ln (Ln is the Light Lanthanide, Ln = La, Ce, Pr, Nd) nanosheetswith mesoporous structure was fabricated as a filler in Pebax1657 matrix to improve the performance ofCO2 separation. F-Ln nanosheets are uniformly distributed in the membrane and the mesoporous structurecan construct multiple channels for CO2 fast transport in Pebax/F-Ln MMMs. The pore diameter ofnanosheet is in order: F-La > F-Ce > F-Pr > F-Nd, and the smaller pore diameter of nanosheets is beneficialto improve the CO2 separation performance. In humidified conditions, Pebax/F-Nd-6 MMMs show optimumseparation performance among MMMs, and the CO2 permeability is up to 1265 Barrer and CO2/CH4selectivity is 36.7, which are 2.3 times and 1.9 times higher than pure Pebax and approaches 2019 upperbound. Meanwhile, to demonstrate the potential universal applicability of F-Ln nanosheets in CO2 separation,XLPEO/F-Ce MMMs were fabricated to separate CO2/N2 and the performance exceeds the 2019upper bound. The efficient CO2 separation performance of 2D F-Ln nanosheets with mesoporous structurein membranes reveals the potential application of these nanosheets in industrial CO2 separation.

Lightweight corundum-mullite refractories: I, Effects of pore characteristics and phase compositions on the slag resistance of porous corundum-mullite aggregates

Wen Yan,Xiaoli Lin,Junfeng Chen,Qingjie Chen,Nan Li 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.3

Corrosion of five corundum-mullite aggregates with the same chemical composition and the different pore characteristics andphase compositions by the blast furnace slag were conducted using the static crucible test. Effects of pore characteristics andphase compositions on the slag resistance of the aggregates were investigated through X-ray diffractometer (XRD), scanningelectron microscopy (SEM), mercury porosimetry measurement and FactSage® software, etc. It is found that the porecharacteristics and phase compositions strongly affect the slag resistance of the aggregates. With an increase in apparentporosities (1.4-41.6%), the slag penetration and corrosion resistances of aggregates decrease evidently. When the apparentporosities are in the range of 41.6-44.8%, the pore size plays more important role in the penetration resistance than theviscosity of the slag penetrated; the pore size of 2.74 µm can greatly inhibit the slag penetration. Under the conditions of largedifference in the apparent porosities, the phase compositions have little effect on the corrosion resistance; whereas, when theapparent porosities are similar, the higher the corundum content, the higher the corrosion resistance is.

Lightweight corundum-mullite refractories: II, Effects of porous aggregates on the slag resistances of corundum-mullite refractories

Wen Yan,Qingjie Chen,Xiaoli Lin,Junfeng Chen,Nan Li 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.4

Corrosion of five corundum-mullite refractories with the different porous aggregates and the same matrix by the blast furnaceslag was conducted using the static crucible test. Effects of properties of corundum-mullite aggregates on the slag resistanceof refractories were investigated through X-ray diffractometer (XRD), scanning electron microscopy (SEM), and mercuryporosimetry measurement, etc. It is found that the porous corundum-mullite aggregates have different slag absorbing capacity,which affects the composition of the corroded aggregates and matrices at slag/refractory interface, and thus affects the slagcorrosion and penetration resistances. Comparing with the dense corundum-mullite refractory, the porous corundum-mulliteaggregate with 31.6% apparent porosity (AP) substituting the dense aggregates in the refractories does not make the slagresistance degenerate and reduces the bulk density by 16.7 wt%; whereas, when the APs of aggregates increase to 41.6-44.8%,the slag resistance sharply deceases. It is a successful case that the developed lightweight refractory with high slag resistancehas a potential application for working lining of high-temperature furnace.

Facile synthesis of nitrogen-doped carbon dots (N-CDs) and N-CDs/NiO composite as an efficient electrocatalyst for oxygen evolution reaction

Kou Xiaoli,Xin Xin,Zhang Yan,Meng Long-Yue 한국탄소학회 2021 Carbon Letters Vol.31 No.4

Nitrogen-doped carbon dots (N-CDs), derived from the biomass (anthocyanin), are the novel additive to the nanocarbon materials, which is expected to bring a wide spectrum of novel applications. Moreover, metallic oxides are emerging for their unique potential for electrocatalysis. Herein, we report the synthesis of N-CDs for the selective detection of Fe3+ with a limit of detection of 2.57 μM in the range of 5–60 μM using ethylenediamine and H2O2 by a hydrothermal method. The obtained N-CDs displayed a spherical morphology with a particle size range of 2–7 nm and emitted blue luminescence at 394 nm under excitation at 319 nm. Meanwhile, we have demonstrated the fabrication of cost-efcient electrocatalysts for oxygen evolution reaction (OER) in an alkaline medium, employing N-CDs. Owing to the successful incorporation of N-CDs into NiO nanospheres, the resulting N-CDs/NiO with large surface areas, fast charge transfer, and increased conductivity vastly improved the catalytic activity. Remarkably, the optimal of N-CDs/NiO composite requires the overpotential of only 380 mV at a current density of 10 mA cm−2 and a relatively low Tafel slope of 57.96 mV dec−1 compared with pure NiO. These results open up a facile route for the application of N-CDs and ofer prospects for CD-metal hybrids as high OER catalysts in electrochemical energy devices.