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Three-dimensional biogenic C-doped Bi_2MoO_6/In_2O_3-ZnO Z-scheme heterojunctions derived from a layered precursor

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Journal of Environmental Sciences 2019年第5期31卷 54-66页

作者： hongyan Li Jia Li Ping Yang Dickon h.L.ng Xinling Cui Fei Ji School of Material Science and Engineering University of Jinan Department of Physics The Chinese University of Hong Kong

Novel 3D biogenic C-doped Bi_2 MoO_6/In_2O_3-ZnO Z-scheme heterojunctions were synthesized for the first time, using cotton fiber as template. The as-prepared samples showed excellent adsorption and photodegradation performance toward the hazardous antibiotic doxycycline under simulated sunlight irradiation. The morphology, phase composition and in situ carbon doping could be precisely controlled by adjusting processing parameters. The carbon doping in Bi_2 MoO_6/In_2O_3-ZnO was derived from the cotton template, and the carbon content could be varied in the range 0.9–4.4 wt.% via controlling the heat treatment temperature. The sample with Bi_2 MoO_6/In_2O_3-ZnO molar ratio of 1:2 and carbon content of1.1 wt.% exhibited the highest photocatalytic activity toward doxycycline degradation,which was 3.6 and 4.3 times higher than those of pure Bi_2 MoO_6 and Zn In Al-CLDh(calcined layered double hydroxides), respectively. It is believed that the Z-scheme heterojunction with C-doping, the 3D hierarchically micro–meso–macro porous structure, as well as the high adsorption capacity, contributed significantly to the enhanced photocatalytic activity.

关键词： Biotemplate Bi2MoO6 ZnInAl-layered double hydroxides (LDh) Adsorption Photocatalysis

‘Whole-molecule Disorder’ Refinement of 4-Tricyanovinyl-N,N-diethylaniline

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Chinese Journal of Structural Chemistry 2011年第9期30卷 1286-1288页

作者： ng Seik Weng Department of Chemistry University of Malaya Chemistry Department Faculty of Science King Abdulaziz University

The molecule of 4-tricyanovinyl-N,N-diethylaniline is disordered about an axis that is close to the axis passing through the 1,4-carbon atoms. The disorder is a 1：1 type of disorder that involves only part of the molecule as the diethylamino substitutent and the three nitrogen atoms of the tricyanovinyl substituent are ordered. The treatment of the nearly ‘whole-molecule disorder’ by employing a small number of restraints is described. Crystal data： C15h14N4, triclinic, P , a = 7.1996（5）, b = 7.7232（5）, c = 12.4171（8） , α = 99.350（1）, β = 94.647（1）, γ = 103.312（1）o and V = 657.90（8） 3 at –173 K.

关键词： whole-molecule disorder

‘Whole-molecule Disorder’ Refinement of 4-(4-hydroxybenzylideneiminio)phenol hemichloride hemihydroxide

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Chinese Journal of Structural Chemistry 2011年第9期30卷 1283-1285页

作者： ng Seik Weng Department of Chemistry University of Malaya

The two independent cations of the salt, [hO-C6h4-Ch=Nh-C6h4-Oh]·1/2Oh·1/2Cl, are both disordered about an axis connecting the two oxygen atoms at the para-positions of the aromatic rings, the disorder being in a 83：17 ratio in one cation and 91：9 in the other. The hydroxide and chloride anions are ordered. The treatment of the nearly ‘whole-molecule disorder’ by employing a small number of restraints is described. Crystal data： C13h12.5Cl0.5NO2.5, triclinic, P , a = 9.1731（4）, b = 9.2048（4）, c = 15.9144（7） , α = 104.822（1）, β = 90.077（1）, γ = 118.641（1）o and V = 1127.86（9） 3 at –173 K.

关键词： whole-molecule disorder

A Mild and Practical Procedure for Tetrahydropyranylation of Alcohols and Phenols Catalysed by Anhydrous Ferrous Sulfate

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Chinese Chemical Letters 1998年第3期9卷 241-244页

作者： Li, TS zh.ng, zh Jin, TS Li, YL hebei Univ Dept Chem Baoding 071002 Hebei Peoples R China Lanzhou Univ Natl Lab Appl Organ Chem Lanzhou 730000 Peoples R China

An easy preparation of tetrahydropyranyl (ThP) ethers of alcohols and phenols with 3,4-dihydro-2h-pyran (DhP) in refluxing dichloromethane has been carried out in good to excellent yields under catalysis of anhydrous ... 详细信息

关键词： preparation tetrahydropyranyl ethers protection of hydroxy catalysis anhydrous ferrous sulfate

Evaluation of Serum Soluble CD27 and CXCL10 Levels in Patients With Vitiligo:A Cross-Sectional Study

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International Journal of Dermatology and Venereology 2024年第2期7卷 89-93页

作者： Marwa A.Aboelmagd hanan A.Assaf Mohammed h.hassan hanan A.Abdelmegeed Ashraf Abdelwahab Department of Dermatology Venereology and AndrologyFaculty of MedicineSohag UniversitySohag 82524Egypt Department of Medical Biochemistry Faculty of MedicineSouth Valley UniversityQena 83523Egypt Department of Dermatology Sohag Hospital for Mental HealthSohag 82524Egypt

Objective:Vitiligo is a relatively common skin disfiguring disorder that exhibits a fluctuating course between activity and stability,making monitoring and management *** plays a crucial role in the pathogenesis of *** autoimmune disorders have been associated with both CD27 and chemokine(C-X-C motif)ligand 10(CXCL10).however,trials evaluating their role in vitiligo are lacking in the Egyptian *** evaluated the circulating levels of these 2 biomarkers in patients with vitiligo and the possible correlation between their levels and disease ***:This cross-sectional study included 70 patients with vitiligo and 20 healthy *** patients were clinically assessed and then divided into active and stable groups according to clinical signs of activity and Vitiligo Disease Activity *** levels of CD27 and CXCL10 in the serum were assessed using an enzyme-linked immunosorbent assay in both the patients and the controls,then the Mann-Whitney U and Kruskal-Wallis tests were used to analyze the difference between the ***:Active and stable vitiligo patients have significantly higher median serum CXCL10(385.9 and 245.2 pg/mL)and CD27(61.6 and 66.5 ng/mL)levels compared to the controls(193 pg/mL and 52.5 ng/mL,respectively,all Phough CXCL10 levels significantly increased with disease activity(Phe 2 subgroups(P=0.953).CXCL10 positively correlated with disease activity(r=0.887,Phad a higher sensitivity and a lower specificity(95.7%and 60.0%,respectively)compared to CD27(71.4%and 75%,respectively)for differentiating cases from ***:There is a possibility that CXCL10 and CD27 are involved in the development and course of vitiligo.

关键词： vitiligo disease activity chemokine(C-X-C motif)ligand 10 CD27

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中国城镇居民收入和消费的协整分析

消费经济 2005年第2期21卷 16-19页

作者：张继海臧旭恒山东大学经济学院山东济南250100

本文利用误差修正模型对中国城镇居民收入和消费进行协整分析。通过协整分析实证分析了中国城镇居民消费和收入之间的短期波动和长期均衡关系。实证分析的结果表明中国城镇居民家庭实际收入和实际消费之间存在长期的协整关系,当期收入... 详细信息

本文利用误差修正模型对中国城镇居民收入和消费进行协整分析。通过协整分析实证分析了中国城镇居民消费和收入之间的短期波动和长期均衡关系。实证分析的结果表明中国城镇居民家庭实际收入和实际消费之间存在长期的协整关系,当期收入和长期均衡对居民消费都具有较强的制约作用。在长期中,收入增长是制约居民消费增长的重要因素。

关键词：中国城镇居民收入消费需求消费者消费水平

Microbe-derived carbon materials for electrical energy storage and conversion

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Journal of Energy Chemistry 2016年第2期25卷 189-196页

作者： Li Wei h.Enis Karahan Shengli zhai Yang Yuan Qihui Qian Kunli Goh Andrew Keong ng Yuan Chen School of Chemical and Biomedical Engineering Nanyang Technological University 62 Nanyang Drive 637459 Singapore Singapore Institute of Technology 10 Dover Drive 138683 Singapore School of Chemical and Biomolecular Engineering The University of Sydney NSW 2006 Australia

Microbes are microscopic living organisms that surround us which include bacteria, archaea, most protozoa, and some fungi and algae. In recent years, microbes have been explored as novel precursors to synthesize carbon-based（nano）materials and as substrates or templates to produce carbon-containing（nano）composites. Being greener and more affordable, microbe-derived carbons（MDCs） offer good potential for energy applications. In this review, we describe the unique advantages of MDCs and outline the common procedures to prepare them. We also extensively discuss the energy applications of MDCs including their use as electrodes in supercapacitors and lithium-ion batteries, and as electrocatalysts for processes such as oxygen reduction, oxygen evolution, and hydrogen evolution reactions which are essential for fuel cell and water electrochemical splitting cells. Based on the literature trend and our group＇s expertise, we propose potential research directions for developing new types of MDCs. This review, therefore, provides the state-of-the-art of a new energy chemistry concept. We expect to stimulate future research on the applications of MDCs that may address energy and environmental challenges that our societies are facing.

关键词： Microbe Carbon materials Supercapacitor Lithium-ion battery Oxygen reduction reaction hydrogen evolution reaction

Ground state energy of excitons in quantum dot treated variationally via hylleraas-like wavefunction

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Chinese Physics B 2009年第4期18卷 1578-1585页

作者： S. Sakiroglu . Dogan A. Yιldιz K. Akgngr h. Epik Y. Ergn h. Sarι . Skmen Physics Department Dokuz Eyll University Physics Department Anadolu University Physics Department Cumhuriyet University

In this work, the effects of quantum confinement on the ground state energy of a correlated electron-hole pair in a spherical and in a disc-like quantum dot have been investigated as a function of quantum dot size. Under parabolic confinement potential and within effective mass approximation Ritz＇s variational method is applied to hylleraas-like trial wavefunction. An efficient method for reducing the main effort of the calculation of terms like τekh exp （-λτeh） is introduced. The main contribution of the present work is the introduction of integral transforms which provide the calculation of expectation value of energy and the related matrix elements to be done analytically over single-particle coordinates instead of hvlleraas coordinates.

关键词： exciton parabolic confinement variational method hylleraas coordinates

Second-order optimality conditions f or minimizing a maxfunction

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Science China Mathematics 2000年第7期43卷 722-733页

作者：黄力人 K.F.ng Department of Mathematics South China Normal University Guangzhou 510631 China Department of Mathematics The Chinese University of Hong KongHong KongChina Correspondence should be addressed to K.F.Ng

We study Chaney's and Ben-Tal-Zowe's second-order directional derivatives with applications in minimization problem for max-functions of the formh(x): = max {f(x, τ); τ ∈T},where T is a compact metricspace. We impr... 详细信息

关键词： max-f unction sup-type function second-order optimality condition nonsmooth optimization.