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In_(2)O_(3-)x(OH)y/Bi_(2)MoO_(6) S-scheme heterojunction for enhanced photocatalytic performance

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Journal of Materials Science & Technology 2020年第21期56卷 151-161页

作者： Zhongfu Li Zhaohui Wu Rongan He Long Wan shiying zhang College of Materials Science and Engineering Hunan UniversityChangsha410082China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha410005China

Surface heterojunction engineering has been extensively studied to promote efficient charge separation in semiconductor *** an effective heterojunction system to optimize the separation and transport of photo-induced charges is an appealing strategy to enhance the photocatalytic *** this work,In_(2)O_(3)-x(OH)y in situ decorated Bi_(2)MoO_(6) two-dimensional step-scheme heterojunctions were synthesized through a controlled dehydroxylation process of indium-based *** charge transfer mechanism of this step-scheme heterojunctions was confirmed by the characterization of electron structures,reactive species,photoelectric properties and DFT theoretical *** band bending and the internal electric field caused by the charge transfer upon hybridization can effectively promote the separation of charges and present the optimal redox *** addition,surface residual hydroxyl groups can regulate the surface energy state and optimize the interfacial charge transfer kinetics of the prepared step-scheme ***,the step-scheme heterojunction exhibits superior performance in photocatalytic reduction of hexavalent chromium and degradation of organic pollutants under visible light *** work provides an innovative perspective to construct photocatalyst with superior activity.

关键词： Step-scheme Heterojunction Bi_(2)MoO_(6) Photocatalyst

Efficient interfacial charge transfer of BiOCl-In_(2)O_(3) step-scheme heterojunction for boosted photocatalytic degradation of ciprofloxacin

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Journal of Materials Science & Technology 2022年第26期121卷 236-244页

作者： Kaiqiang Xu Jie Shen shiying zhang Difa Xu Xiaohua Chen College of Materials Science and Engineering Hunan UniversityChangsha 410082China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha 410005China

BiOCl as a representative layered bismuth-based photocatalyst with Sillén-structure has aroused wide public concern on photocatalytic ***,the photocatalytic efficiency of pristine BiOCl is currently restricted by its low optical absorption and charge separation ***,step-scheme(S-scheme)heterojunctions of In_(2)O_(3) nanoparticle and BiOCl micron-sheet were constructed by a convenient molten salt method by using a LiNO_(3)-KNO_(3) *** In_(2)O_(3)-BiOCl heterojunctions exhibit higher optical absorption performance from 380 nm to 700 nm than the pristine BiOCl and enhanced photocatalytic property toward ciprofloxacin(CIP)degradation under Xenon lamp *** sample 20%In_(2)O_(3) -BiOCl showed the highest photodegradation efficiency,attaining 91%removal of CIP within 35 min,which was 39.6 times and 3.2 times higher than that of pristine In_(2)O_(3) and BiOCl,*** improved photodegradation property mainly resulted from the novel S-scheme mechanism,which boosted highly efficient separation of the photo-induced *** photoluminescence spectrometric test and transient photocurrent response results demonstrated that In_(2)O_(3)-BiOCl composite exhibited efficient separation of photo-generated charge *** work would provide new insights into the design of novel S-scheme photocatalytic systems with applicability in photocatalytic water treatment.

关键词： Step-scheme photocatalyst In_(2)O_(3) BiOCl Photocatalytic activity Ciprofloxacin

Recent progress on Ge oxide anode materials for lithium-ion batteries

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Science China Chemistry 2018年第5期61卷 515-525页

作者： Wei Wei Jianlong Xu Maotian Xu shiying zhang Lin Guo Henan Key Laboratory of Biomolecular Recognition and Sensing School of Chemistry and Chemical Engineering Shangqiu Normal University School of Chemistry Beihang University

1 Introduction As environmental pollution continues to worsen,governments are increasing their efforts to develop green transport vehicles,such as electric vehicles and hybrid cars.

关键词： Ge Li Recent progress on Ge oxide anode materials for lithium-ion batteries Figure

Regulating the crystal phase of bismuth-based semiconductors for promoted photocatalytic performance

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Science China Chemistry 2024年第6期67卷 1839-1864页

作者： Zhaohui Wu Mei-Chi Chong shiying zhang Junshan Li Yongfa Zhu Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha410022China Department of Chemistry Tsinghua UniversityBeijing100084China Institute for Advanced Study Chengdu UniversityChengdu610106China

Numerous bismuth-based semiconductors(BBSs)with sophisticated and desirable structures used as photocatalysts for efficient photocatalytic degradation of water organic contaminants have attracted considerable ***,regulating the crystal phases and phase transition of BBSs for promoted photocatalytic performance is ***,the unique crystal structure and band structure features of each typical BBSs,and the vital roles on phase controlling of each phase were systematically presented based on the classification of ***,the critical factors for the phase transition of BBSs and intrinsic driving forces endowed by phases of BBSs for enhanced photocatalytic performance of organic contaminants removal were also *** review will provide systematical guidelines and horizons for regulating the crystal phase and phase transition of BBSs,promoting photocatalytic degradation and mineralization of organic contaminants.

关键词： bismuth-based semiconductors phase regulation photocatalytic performances organic contaminants

A high-resolution,hybrid compact-WENO scheme with minimized dispersion and controllable dissipation

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Science China(Physics,Mechanics & Astronomy) 2014年第5期57卷 971-982页

作者： SUN ZhenSheng HU Yu LUO Lei zhang shiying YANG ZhengWei Xi'an Research Institute of High-tech

In this paper, a high-resolution, hybrid compact-WENO scheme is developed based on the minimized dispersion and controllable dissipation reconstruction technique. Firstly, a sufficient condition for a family oftri-diagonal compact schemes to have independent dispersion and dissipation is derived. Then, a specific 4th order compact scheme with low dispersion and adjustable dissipation is constructed and analyzed. Finally, the optimized compact scheme is blended with the WENO scheme to form the hybrid scheme. Moreover, the approximation dispersion relation approach is employed to optimize the spectral properties of the nonlinear scheme to yield the true wave propagation behavior of the finite difference scheme. Several test cases are carried out to verify the high- resolution as well as the robust shock-capturing capabilities of the proposed scheme.

关键词： binaries: high-resolution schemes shock-capturing schemes nonlinear spectral analysis spectral optimization

Rare loss-of-function variants in FLNB cause non-syndromic orofacial clefts

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Journal of Genetics and Genomics 2024年第2期51卷 222-229页

作者： Wenbin Huang shiying zhang Jiuxiang Lin Yi Ding Nan Jiang Jieni zhang Huaxiang Zhao Feng Chen Department of Orthodontics Peking University School and Hospital of StomatologyBeijing100081China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of StomatologyXi’an Jiaotong UniversityXi’anShaanxi710004China Guangdong Provincial High-level Clinical Key Specialty Guangdong Province Engineering Research Center of Oral Disease Diagnosis and TreatmentDepartment of OrthodonticsStomatological CenterPeking University Shenzhen HospitalShenzhen Peking University-The Hong Kong University of Science and Technology Medical CenterShenzhenGuangdong 518036China Department of Physiology and Pathophysiology School of Basic Medical SciencesXi'an Jiaotong UniversityXi'anShaanxi710049China National Center for Stomatology National Clinical Research Center for Oral DiseasesNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Key Laboratory for Digital StomatologyResearch Center of Engineering and Technology for Computerized Dentistry Ministry of HealthNMPA Key Laboratory for Dental MaterialsBeijing100101China Central Laboratory Peking University School and Hospital of StomatologyBeijing100081China

Orofacial clefts (OFCs) are the most common congenital craniofacial disorders, of which the etiology is closely related to rare coding variants. Filamin B (FLNB) is an actin-binding protein implicated in bone formation. FLNB mutations have been identified in several types of syndromic OFCs and previous studies suggest a role of FLNB in the onset of non-syndromic OFCs (NSOFCs). Here, we report two rare heterozygous variants (p.P441T and p.G565R) in FLNB in two unrelated hereditary families with NSOFCs. Bioinformatics analysis suggests that both variants may disrupt the function of FLNB. In mammalian cells, p.P441T and p.G565R variants are less potent to induce cell stretches than wild type FLNB, suggesting that they are loss-of-function mutations. Immunohistochemistry analysis demonstrates that FLNB is abundantly expressed during palatal development. Importantly, Flnb^(−/−) embryos display cleft palates and previously defined skeletal defects. Taken together, our findings reveal that FLNB is required for development of palates in mice and FLNB is a bona fide causal gene for NSOFCs in humans.

关键词： Or ofacial clefts FLNB Loss-of-function mutati on Cleft palate Filamin B Actin flannent Knockout mouse

One-pot synthesis of array-like sulfur-doped carbon nitride with covalently crosslinked ultrathin MoS cocatalyst for drastically enhanced photocatalytic hydrogen evolution

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Journal of Materials Science & Technology 2021年第16期75卷 59-67页

作者： Shumin zhang Hu Dong Changsheng An Zhongfu Li Difa Xu Kaiqiang Xu Zhaohui Wu Jie Shen Xiaohua Chen shiying zhang College of Materials Science and Engineering Hunan UniversityChangsha410082China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha 410005Hunan ProvinceChina School of Physics and Electronics Hunan Normal University410081China

Constructing noble-metal-free loaded catalyst with high-efficiency photocatalytic activity by a simple and scalable method is of profound significance for fundamental research and practical ***,a simple one-pot method was used to synthesize novel samples of array-like sulfur-doped graphitic carbon nitride(SCN)nanosheets with ultrathin MoS2 loading(MS/SCN-x%).The ultrathin MoS2 cocatalyst was evenly distributed on the surface of SCN and was linked to the main catalyst by covalent chemical *** from the multiple advantages of the array-like porous nanosheets structure with rich exposed surface,covalent cross-linking structure,and enhanced visible light absorption,the MS/SCN-2.5%composites drastically improve hydrogen evolution performance,which is superior to original MoS2 nanosheet modified by two-step mixing method,and also rivals with Pt/*** designing strategy of photocatalyst modified by noble-metal-free cocatalyst with covalent bond structure provides fascinating insights into enhanced photocatalytic hydrogen evolution.

关键词： Carbon nitride Noble-metal-free cocatalyst Covalent cross-linking Photocatalytic hydrogen evolution

The transcriptome analysis of cleft lip/palate-related PTCH1 variants in GMSM-K cells show carcinogenic potential

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BIOCELL 2023年第1期47卷 205-214页

作者： MINGZHAO LI QIAN zhang WENBIN HUANG shiying zhang NAN JIANG XIAOSHUAI HUANG FENG CHEN Department of Orthodontics Peking University School and Hospital of StomatologyBeijingChina Central Laboratory Peking University School and Hospital of StomatologyBeijingChina Biomedical Engineering Department Peking UniversityBeijingChina

Cancer progression involves the sonic hedgehog(SHH)pathway,in which the receptor PTCH1 actives the downstream *** of PTCH1 can lead to nevoid basal cell carcinoma Syndrome(NBCCs)including neoplastic disease and congenital *** evaluate the relationship between PTCH1 and cancer,we applied the CRISPR/Cas9 system to knock out PTCH1 in oral nontumorous epithelial cells(GMSM-K).Then we screened six PTCH1 variants associated with cleft lip/palate(CL/P),one of the congenital disorders in NBCCs,and generated PTCH1 variant and wild-type recombinant PTCH1^(−/−)GMSM-K cell *** sequencing was conducted in these cell *** results revealed that differentially expressed genes(DEGs)in PTCH1^(−/−)GMSM-K were enriched in extracellular compartments,contributing epithelial diseases by pathway enrichment ***-PCR confirmed that KRT34,KRT81,KRT86,PDGFB,and WNT10B genes,associated with extracellular compartments were highly expressed in PTCH1^(−/−).The Kyoto Encyclopedia of Genes and Genomes analysis also suggested that DEGs are closely related to focal adhesion,transcriptional misregulation,and proteoglycans in breast and gastric *** analysis of samples revealed that the CL/P-associated PTCH1 variants A443G and V908G are potentially *** findings provide new insights into the carcinogenic potential of PTCH1 dysfunction.

关键词： CRISPR/Cas9 PTCH1 variant Carcinogenic potential Transcriptome sequencing

Exploring facile strategies for high-oxidation-state metal nitride synthesis: carbonate-assisted one-step synthesis of Ta_3N_5 films for solar water splitting

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Science Bulletin 2018年第21期63卷 1404-1410页

作者： Tao Fang Huiting Huang Jianyong Feng Yingfei Hu Yongsheng Guo shiying zhang Zhaosheng Li Zhigang Zou Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State Microstructures Department of Physics Nanjing University College of Engineering and Applied Sciences Nanjing University Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha University

Metal nitrides are widely studied due to their outstanding physical properties, including high hardness,high thermal and chemical stability, low electrical resistivity etc. Generally, metal nitrides can be obtained from the direct reaction of metal and ammonia/nitrogen. However, some of the metal nitrides,such as Ta_3N_5, cannot be synthesized by direct nitridation of metals. To achieve Ta_3N_5, high-oxidationstate Ta precursors like Ta_2O_5, NaTaO_3, TaS_3, K_6Ta_(10.8)O_(30), Ta(N(CH_3)_2)_5 and TaCl_5 have to be employed,which is a time-consuming and laborious process with the possibility of introducing undesirable impurities. Here taking Ta_3N_5 as an example, a facile carbonate-assisted one-step nitridation method is proposed, which enables the direct synthesis of high-oxidation-state metal nitride films from metal precursors under ammonia flow. The mechanism of the nitridation process has been studied, which carbon dioxide released from carbonates decomposition reacts with metallic Ta and assists the one-step conversion of metallic Ta to Ta_3N_5. The as-prepared Ta_3N_5 film, after modified with NiFe layered double hydroxide, exhibits promising water splitting performance and stability. This method avoids the preoxidation process of metal precursors in high-oxidation-state metal nitride synthesis, and may facilitate the direct fabrication of other important metal nitrides besides Ta_3N_5.

关键词： Metal nitrides Carbonate-assisted One-step conversion Ta3N5 films Photoelectrochemical Solar water splitting