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| 1 | Investigation of Mg^2+/Li^+ Separation by Nanofiltration显示文摘The Mg2+/Li+/Cl solutions were filtrated with a commercially available DK nanofiltration membrane to investigate the possibility to enrich the lithium component.The investigation was significant as such an approach might be a competing substitute for the present lithium purification industry and the environmental protection purpose.The Donnan steric pore model(DSPM) was implemented for the prediction.The separation of Mg2+/Li+was mainly affected by the working pressure(or the permeation flux) and a limiting separation factor was found around 0.31.The effective membrane charge density was evaluated and its dependence on the permeation flux as well as the ion pattern was discussed.For predicting an actual separation of electrolytes,the experimental investigation seems necessary for the reliability and efficiency. | YANG Gang SHI Hong LIU Wenqiang XING Weihong XU Nanping | 2011 | Chinese Journal of Chemical Engineering2011，19，4： | 21 |
| 2 | Progress on Porous Ceramic Membrane Reactors for Heterogeneous Catalysis over Ultrafine and Nano-sized Catalysts显示文摘Heterogeneous catalysts with ultrafine or nano particle size have currently attracted considerable attentions in the chemical and petrochemical production processes, but their large-scale applications remain challenging because of difficulties associated with their efficient separation from the reaction slurry. A porous ceramic membrane reactor has emerged as a promising method to solve the problem concerning catalysts separation in situ from the reaction mixture and make the production process continuous in heterogeneous catalysis. This article presents a review of the present progress on porous ceramic membrane reactors for heterogeneous catalysis, which covers classification of configurations of porous ceramic membrane reactor, major considerations and some important industrial applications. A special emphasis is paid to major considerations in term of application-oriented ceramic membrane design, optimization of ceramic membrane reactor performance and membrane fouling mechanism. Finally, brief concluding remarks on porous ceramic membrane reactors are given and possible future research interests are also outlined. | JIANG Hong MENG Lie CHEN Rizhi JIN Wanqin XING Weihong XU Nanping | 2013 | Chinese Journal of Chemical Engineering2013，21，2： | 9 |
| 3 | Assessment and Comparison of in vitro Immunoregulatory Activity of Three Astaxanthin Stereoisomers显示文摘In recent years,the immune-modulatory role of all-trans astaxanthin from different pigment sources has been studied.It was reported that all-trans astaxanthin might exist as three stereoisomers,and the composition of all-trans stereoisomers in natural materials differs from that of synthetic products.However,the different biological effects of various all-trans stereoisomers still remain unclear.In the present study,we evaluated the bioactivity of three astaxanthin stereoisomers,(3S,3'S)-trans-,(3R,3'R)-transand meso-trans-astaxanthin,in regulating cell-mediated immune response using mice lymphocytes and peritoneal exudates cells(PECs) systems.After the treatment with three astaxanthin stereoisomers(20 μmol L-1),the lymphocyte proliferation capacity,neutral red phagocytosis of PECs and natural killer(NK) cell cytotoxic activity were comparatively assessed.The results showed that all three astaxanthin stereoisomers significantly promoted lymphocyte proliferation,phagocytic capacity of PECs,and cytotoxic activity of NK cells.Moreover,the(3S,3'S)-trans-astaxanthin exhibited a much higher response than others. | SUN Weihong XING Lihong LIN Hong LENG Kailiang ZHAI Yuxiu LIU Xiaofang | 2016 | Journal of Ocean University of China2016，15，2： | 7 |
| 4 | Preparation and evaluation of α-Al2O3 supported lithium ion sieve membranes for Li^+ extraction显示文摘Spinel lithium manganese oxide ion-sieves have been considered the most promising adsorbents to extract Li^+ from brines and sea water.Here,we report a lithium ion-sieve which was successfully loaded onto tubular α-Al2 O3 ceramic substrates by dipping crystallization and post-calcination method.The lithium manganese oxide Li4 Mn5 O(12)was first synthesized onto tubular α-Al2 O3 ceramic substrates as the ion-sieve precursor(i.e.L-AA),and the corresponding lithium ion-sieve(i.e.H-AA) was obtained after acid pickling.The chemical and morphological properties of the ion-sieve were confirmed by X-ray diffraction(XRD) and scanning electron microscopy(SEM).Both L-AA and H-AA showed characteristic peaks of α-Al2 O3 and cubic phase Li4 Mn5 O(12) and the peaks representing cubic phase could still exist after pickling.The lithium manganese oxide Li4 Mn5 O(12) could be uniformly loaded not only on the surface of α-Al2 O3 ubstrates but also inside the pores.Moreover,we found that the equilibrium adsorption capacity of H-AA was 22.9 mg·g^-1.After 12 h adsorption,the adsorption balance was reached.After 5 cycles of adsorption,the adsorption capacity of H-AA was 60.88% of the initial adsorption capacity.The process of H-AA adsorption for Li^+correlated with pseudo-second order kinetic model and Langmuir model.Adsorption thermodynamic parameters regarding enthalpy(△N), Gibbs free energy(△G) and entropy(AS) were calculated.For the dynamic adsorptiondesorption process of H-AA,the H-AA exhibited excellent adsorption performance to Li^+ with the Li^+ dynamic adsorption capacity of 9.74 mg·g^-1 and the Mn^2+dissolution loss rate of 0.99%.After 3 dynamic adsorption-desorption cycles,80% of the initial dynamic adsorption capacity was still kept. | Feng Xue Xiaoxian Zhang Yue Niu Chenhao Yi Shengui Ju Weihong Xing | 2020 | Chinese Journal of Chemical Engineering2020，28，9： | 6 |
| 5 | Controllable preparation of ZnO porous flower through a membrane dispersion reactor and their photocatalytic properties显示文摘Three dimensional (3D) flower-like basic zinc carbonate constructed by multilayered nanoplates were rapidly prepared at room temperature through the direct precipitation method coupled with membrane dispersion technology, and porous ZnO with similar structures could be obtained after calcining the precursor. The structural properties of the products before and after the calcining process were characterized by SEM, TEM and XRD.The supersaturation of the reaction system due to the membrane dispersion played an important role in the formation of uniform Zn_5(CO_3)_2(OH)_6 precursors. A plausible mechanism was proposed for the formation of the flower-like ZnO assembled by nanoplates composed of nanoparticles. The obtained ZnO microspheres showed excellent photocatalytic properties, which could be attributed to the open structure and remarkable amount of porous nanoplates. | Feng Zhang Zhilong Xu Kun Wang Rizhi Chen Zhaoxiang Zhong Weihong Xing | 2018 | Chinese Journal of Chemical Engineering2018，26，10： | 5 |
| 6 | Preparation of Nano-sized Zirconium Carbide Powders through a Novel Active Dilution Self-propagating High Temperature Synthesis Method显示文摘High quality nano-sized zirconium carbide(Zr C) powders were successfully fabricated via a developed chemical active dilution self-propagating high-temperature synthesis(SHS) method assisted by ball milling pretreatment process using traditional cheap zirconium dioxide powder(ZrO2), magnesium powder(Mg) and sucrose(C12H22O11) as raw materials. FSEM, TEM, HRTEM, SAED, XRD, FTIR and Raman, ICPAES, laser particle size analyzer, oxygen and nitrogen analyzer, carbon/sulfur determinator and TG-DSC were employed for the characterization of the morphology, structure, chemical composition and thermal stability of the as-synthesized ZrC samples. The as-synthesized samples demonstrated high purity, low oxygen content and evenly distributed Zr C nano-powders with an average particle size of 50 nm. In addition, the effects of endothermic rate and the possible chemical reaction mechanism were also discussed. | 达奥运 龙飞 WANG Jilin XING Weihong WANG Yang ZHANG Fan 王为民 FU Zhengyi | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，4： | 5 |
| 7 | Meltblown fabric vs nanofiber membrane, which is better for fabricating personal protective equipments显示文摘The coronavirus disease 2019(COVID-19)pandemic has led to a great demand on the personal protection products such as reusable masks.As a key raw material for masks,meltblown fabrics play an important role in rejection of aerosols.However,the electrostatic dominated aerosol rejection mechanism of meltblown fabrics prevents the mask from maintaining the desired protective effect after the static charge degradation.Herein,novel reusable masks with high aerosols rejection efficiency were fabricated by the introduction of spider-web bionic nanofiber membrane(nano cobweb-biomimetic membrane).The reuse stability of meltblown and nanofiber membrane mask was separately evaluated by infiltrating water,75%alcohol solution,and exposing under ultraviolet(UV)light.After the water immersion test,the filtration efficiency of meltblown mask was decreased to about 79%,while the nanofiber membrane was maintained at 99%.The same phenomenon could be observed after the 75%alcohol treatment,a high filtration efficiency of 99%was maintained in nanofiber membrane,but obvious negative effect was observed in meltblown mask,which decreased to about 50%.In addition,after long-term expose under UV light,no filtration efficiency decrease was observed in nanofiber membrane,which provide a suitable way to disinfect the potential carried virus.This work successfully achieved the daily disinfection and reuse of masks,which effectively alleviate the shortage of masks during this special period. | Junwei Wu Hongjia Zhou Jingyi Zhou Xiao Zhu Bowen Zhang Shasha Feng Zhaoxiang Zhong Lingxue Kong Weihong Xing | 2021 | Chinese Journal of Chemical Engineering2021，34，8： | 4 |
| 8 | A bifunctional MnO_x@PTFE catalytic membrane for efficient low temperature NO_x-SCR and dust removal显示文摘Low-temperature selective catalytic reduction of NOx combined with dust removal technique due to its energy conservation characteristic has been attracted much attention for fume purification.In this work,the MnOx wrapped PTFE membrane with efficient dust removal and low-temperature NH3-SCR has been prepared with a facile route.MnOxwith different crystal structures was uniformly grown around the PTFE fibrils through water bath.The flower-sphere-like MnOx@PTFE(O-MnOx@PTFE)and lamellar-interlaced ripple-like MnOx@PTFE(W-MnOx@PTFE)have large specific surface area which is favorable for enhancing catalytic performance.Also,the uniformly wrapped W-MnOxaround the PTFE fibrils optimized the pore structure for ultrafine dust capture.The membrane can almost 100%reject particles that are smaller than 1.0μm with a low filtration resistance.Meanwhile,W-MnOx@PTFE with more surface chemisorbed oxygen has the best NO conversion efficiency of 100%at a comparatively low and wide activity temperature window of 160–210°C,which is far to the thermal limitation of the PTFE.Therefore,this efficient and energy conserving membrane has a bright application prospects for tail gas treatment compared to the original treatment process. | Shasha Feng Mengdi Zhou Feng Han Zhaoxiang Zhong Weihong Xing | 2020 | Chinese Journal of Chemical Engineering2020，28，5： | 4 |
| 9 | Catalytic performance of hybrid Pt@ZnO NRs on carbon fibers for methanol electro-oxidation显示文摘A novel Pt@ZnO nanorod/carbon fiber(NR/CF) with hierarchical structure was prepared by atomic layer deposition combined with hydrothermal synthesis and magnetron sputtering(MS). The morphology of Pt changes from nanoparticle to nanorod bundle with controlled thickness of Pt between 10 and 50 nm.Significantly, with the increase of voltage from 0 to 0.6 V(vs. standard calomel electrode), the prompt photocurrent generated on Zn O NR/CF increases from 0.235 to 0.725 m A. Besides, the Pt@Zn O NR/CF exhibited higher electrochemical active surface area(ECSA) value, better methanol oxidation ability and CO tolerance than Pt@CF, which demonstrated the importance of the multifunctional Zn O support. As the thickness of Pt increasing from 10 to 50 nm, the ECSA values were improved proportionally, leading to the improvement of methanol oxidation ability. More importantly, UV radiation increased the density of peak current of Pt@Zn O NR/CF towards methanol oxidation by additional 42.4%, which may be due to the synergy catalysis of UV light and electricity. | Dongyan Li Chen Gu Feng Han Zhaoxiang Zhong Weihong Xing | 2017 | Chinese Journal of Chemical Engineering2017，25，12： | 3 |
| 10 | Membrane enhanced COD degradation of pulp wastewater using Cu_2O/H_2O_2 heterogeneous Fenton process显示文摘Both activity and stability of the catalyst can be improved in heterogeneous Fenton reaction,in particular,with no limitation for the working p H and no production of the sludge.In this work,a combination of catalyst Cu_2O and pore-channel-dispersed H_2O_2is proposed to treat the pulp wastewater.Degradation degree of CODs in the wastewater was up to 77%in the ceramic membrane reactor using Cu_2O powder(2.0 g·L^(-1))and membranefeeding H_2O_2(0.8 ml·L^(-1))within 60 min.Evolution of·OH radical formation in the advanced oxidation process was analyzed with a fluorescent method.Utilization efficiency of H_2O_2was successfully enhanced by 10%with the membrane distributor.Further on,the catalyst recyclability was evaluated in a five-cycle test.The concentration of copper ions being dissolved in the treated water was monitored with ICP.After Cu_2O/H_2O_2(membrane)treatment the effluent is qualified to discharge with COD concentration lower than 15 mg·L^(-1)with regard to the national standard GB25467-2010. | Hongjia Zhou Lin Kang Ming Zhou Zhaoxiang Zhong Weihong Xing | 2018 | Chinese Journal of Chemical Engineering2018，26，9： | 3 |
| 11 | Recent developments on catalytic membrane for gas cleaning显示文摘Catalytic membrane, a novel membrane separation technology that combines catalysis and separation, exhibits significant potential in gas purification such as formaldehyde, toluene and nitrogen oxides(NO_x). The catalytic membrane can remove solid particles through membrane separation and degrade gaseous pollutants to clean gas via a catalytic reaction to achieve green emissions. In this review, we discussed the recent developments of catalytic membranes from two aspects: preparation of catalytic membrane and its application in gas cleaning.Catalytic membranes are divided into organic catalytic membranes and inorganic catalytic membranes depending on the substrate materials. The organic catalytic membranes which are used for low temperature operation(less than 300 °C) are prepared by modifying the polymers or doping catalytic components into the polymers through coating, grafting, or in situ growth of catalysts on polymeric membrane. Inorganic catalytic membranes are used at higher temperature(higher than 500 °C). The catalyst and inorganic membrane can be integrated through conventional deposition methods, such as chemical(physical) vapor deposition and wet chemical deposition. The application progress of catalytic membrane is focused on purifying indoor air and industrial exhaust to remove formaldehyde, toluene, NO_x and PM2.5, which are also summarized. Perspectives on the future developments of the catalytic membranes are provided in terms of material manufacturing and process optimization. | Jiahao Chen Zhaoxiang Zhong Yongsheng Xia Xuebin Ke Weihong Xing | 2019 | Chinese Journal of Chemical Engineering2019，27，6： | 2 |
| 12 | Response of BALB/c mice to a monovalent influenza A (H1N1) 2009 split vaccine显示文摘新奇流行性感冒 A (H1N1 ) 2009 病毒出现了到原因第一第二十一个世纪流行。流行性感冒 A (H1N1 ) 病毒引起的疾病爆发关于潜力推动了担心为一流行并且对流行性感冒 A 的这种子类型驾驶了疫苗的发展。在这研究,我们开发了一支一价的流行性感冒 A (H1N1 ) 裂口疫苗并且在 BALB/c 老鼠评估了它的效果。老鼠与包含红血球凝聚素的疫苗的 2 剂量皮下地被使免疫(哈) 独自一个或哈加铝氢氧化物(艾尔(哦) 3 ) 助手。有改变剂量的免疫哈(3.75, 7.5, 15, 30, 45 或 60 渭 g ) 被执行导致抵销抗体的生产。疫苗的得到的强壮的红血球凝聚抑制(嗨) 并且助手的 microneutralization,和增加扩充了抗体反应。初步的安全评估证明疫苗不是有毒的逍遥法外剂量(包含 60 渭 g HA+600 渭 g 艾尔的 0.5 ml (哦) 3 或 60 渭 g 哈) 。而且,疫苗被发现在 120 渭 g HA+1200 渭 g 艾尔的剂量安全(哦) 3 或 120 渭 g 哈在在老鼠的 1.0 ml。在结论,现在的学习作为公共健康干预为流行性感冒 A (H1N1 ) 种痘的临床的评估提供支持减轻一可能流行。另外,我们疫苗的进一步的评估在首领或人在这研究使用了的调查结果支持。 | Penghui Yang Li Xing Chong Tang Weihong Jia Zhongpeng Zhao Kun Liu Xiao Gao Xiliang Wang | 2010 | Cellular & Molecular Immunology2010，7，2： | 2 |
| 13 | Fouling behavior of poly(vinylidene fluoride)(PVDF)ultrafiltration membrane by polyvinyl alcohol(PVA)and chemical cleaning method显示文摘Severe fouling to poly(vinylidene fluoride)(PVDF)membrane is usually caused as filtrating the papermaking wastewater in the ultrafiltration(UF)process.In the paper,fouling behavior and mechanism were investigated,and the low-concentration polyvinyl alcohol(PVA)contained in the sedimentation tank wastewater was found as the main foulant.Consequently,the corresponding cleaning approach was proposed.The experiment and modeling results elaborated that the fouling mode developed from pore blockage to cake layer along with filtration time.Chemical cleaning conditions including the composition and concentration of reagents,cleaning duration and trans-membrane pressure were investigated for their effect on cleaning efficiency.Pure water flux was recovered by over 95% after cleaning the PVDF membrane using the optimal conditions 0.5 wt% NaClO(as oxidant)and 0.1 wt% sodiumdodecyl benzene sulfonate(SDBS,as surfactant)at 0.04MPa for 100 min.In the chemical cleaning method,hypochlorite(ClO−)could first chain-scissor PVA macromolecules to small molecules and SDBS could wrap the fragments in micelles,so that the foulants were removed from the pores and surface of membrane.After eight cycling tests,pure water flux recovery maintained above 95% and the reused membrane was found intact without defects. | Weijie Ding Min Chen Ming Zhou Zhaoxiang Zhong Zhaoliang Cui Weihong Xing | 2020 | Chinese Journal of Chemical Engineering2020，28，12： | 2 |
| 14 | Phenol hydrogenation to cyclohexanone over palladium nanoparticles loaded on charming activated carbon adjusted by facile heat treatment显示文摘Selective phenol hydrogenation is a green approach to produce cyclohexanone.It still remains a big challenge to prepare efficient supports of the catalysts for the phenol hydrogenation via a simple and cost-effective approach.Herein,a facile approach was developed,i.e.,direct calcination of activated carbon(AC)under argon at high temperature,to improve its structure and surface properties.The modified AC materials were supported with Pd nanoparticles(NPs)to fabricate the Pd/C catalysts.The as-prepared Pd/C600 catalyst exhibits superior catalytic performance in the phenol hydrogenation,and its turnover frequency(TOF)value is 199.2 h^-1,1.31 times to that of Pd/C-raw.The Pd/C600 catalyst presents both better hydrophobicity and more structural defects,contributing to the improved dispersibility in the reaction solution(phenol-cyclohexane),the better Pd dispersion and the smaller Pd size,which result in the enhancement of the catalytic performance.Furthermore,the as-prepared Pd/C600 catalyst shows a good recyclability. | Chunhua Zhang Guangxin Yang Hong Jiang Yefei Liu Rizhi Chen Weihong Xing | 2020 | Chinese Journal of Chemical Engineering2020，28，10： | 2 |
| 15 | Preparation of pH-responsive ceramic composite membranes by grafting acrylic acid onto α-alumina membranes显示文摘A pH-responsive ceramic composite membrane was prepared by chemical graft polymerization of acrylic acid (AA) onto the KH-570 modified α-alumina membrane. The influence of monomer concentration on the gating characteristics of the pH-responsive membrane was investigated. The FT-IR spectrum, contact angle and water filtration rate of the membrane were measured. The monomer concentration was found to have a remarkable effect on the pH-response coefficient and the water filtration rate. In addition, the grafted membrane exhibited fast and reversible response to the pH change in the external solution. | YANG LianLi ZHAO YiJiang ZHOU ShouYong LI MeiSheng CHEN Yan XING WeiHong | 2009 | Chinese Science Bulletin2009，54，12： | 2 |
| 16 | Treatment of titanium white waste acid using ceramic microfihration membrane 显示文摘 | ZHAO Yijiang ZHANG Yan XING Weihong | 2005 | Chemical Engineering Journal2005，111，： | 1 |
| 17 | Separation of ammonium salts from coking wastewater with nanofiltration combined with diafiltration显示文摘 | Na Yin Gang Yang Zhaoxiang Zhong Weihong Xing | 2010 | Desalination2010，，1： | 1 |
| 18 | Esterification of Acetic Acid and n - Propanol with Vapor Permeation Using NaA Zeolite Membrane 显示文摘 | Li Weixing Liu Weiwei Xing Weihong | 2013 | Indutrial & Engineering Chemis- try Research2013，52，： | 1 |
| 19 | Ceramic membrane fouling and cleaning in ultrafiltration of desulfurization wastewater显示文摘 | Yin Na Zhong Zhao Xing Weihong | 2013 | De-salination2013，319，： | 1 |
| 20 | Emulsions prepared by two-stage ceramic membrane jet-glow emulsification 显示文摘 | Jing Wenheng Wu Jun Xing Weihong | 2005 | AIChE Journal2005，51，5： | 1 |
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