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学者姓名：郑华荣
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Abstract ：
针对室内低浓度甲醛（～0.2 mg/m~3）的净化处理，选择两种不同孔径分布的活性炭，通过红外光谱（FT-IR）、比表面积及孔径（BET）测试和扫描电镜（SEM）分析，两种活性炭为同材质炭，孔容占比分别为：中孔炭（A）的微孔容积占比为9%(V_(Micro)/V_(Total)），中孔容积占比为91%(V_(Medium)/V_(Total)）；中微孔炭（B）的微孔容积占比为72%(V_(Micro)/V_(Total)），中孔容积占比为28%(V_(Medium)/V_(Total)）。利用静态法评价装置对活性炭样品吸附低浓度甲醛性能进行测试。结果表明，湿度变化对活性炭吸附低浓度甲醛基本没有影响；小范围的温度变化对不同孔径活性炭的吸附速率有较大影响；多次注入低浓度甲醛的测试表明，中微孔炭的吸附容量要显著高于中孔炭；甲醛脱附测试表明，中微孔炭的脱附量远小于中孔炭，对比两种活性炭的孔容，可以认为，微孔孔容有助于低浓度甲醛的吸附和锁定。
Keyword ：
低浓度 低浓度 孔径分布 孔径分布 活性炭 活性炭 甲醛 甲醛
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| GB/T 7714 | 孟凡银 , 任海冰 , 蔡佳胜 et al. 不同孔径结构活性炭对低浓度甲醛的吸附性能研究 [J]. | 化学工程与装备 , 2023 , 5 (01) : 4-8 . |
| MLA | 孟凡银 et al. "不同孔径结构活性炭对低浓度甲醛的吸附性能研究" . | 化学工程与装备 5 . 01 (2023) : 4-8 . |
| APA | 孟凡银 , 任海冰 , 蔡佳胜 , 邵宇 , 郑华荣 . 不同孔径结构活性炭对低浓度甲醛的吸附性能研究 . | 化学工程与装备 , 2023 , 5 (01) , 4-8 . |
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本发明涉及大坝混凝土表面防护领域，具体指一种大坝混凝土表面自洁净材料及其施工方法。所述大坝混凝土表面自洁净材料包括依次涂装于大坝混凝土表面的氟碳清水混凝土保护剂密封底层和二氧化钛水溶胶涂料光催化面层，其具体施工方法包括混凝土的表面处理、密封底层的涂装和光催化面层的涂装三个步骤。本发明所述大坝混凝土表面自洁净材料较易于施工，且具有良好的适应性和耐候性，能够较好地满足大坝表面的防碳化和自洁净需求，有助于维持大坝外观的整洁，降低人工清理维护成本。构成大坝混凝土表面自洁净材料中光催化面层的二氧化钛水溶胶涂料易于制备且具有较好的光催化性能。
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| GB/T 7714 | 谭界雄 , 付贤智 , 卢建华 et al. 一种大坝混凝土表面自洁净材料及其施工方法 : CN201710034484.5[P]. | 2017/1/17 . |
| MLA | 谭界雄 et al. "一种大坝混凝土表面自洁净材料及其施工方法" : CN201710034484.5. | 2017/1/17 . |
| APA | 谭界雄 , 付贤智 , 卢建华 , 戴文新 , 周和清 , 陈旬 et al. 一种大坝混凝土表面自洁净材料及其施工方法 : CN201710034484.5. | 2017/1/17 . |
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Pyrochlore W2O6 center dot H2O were successfully prepared via a facile and rapid hydrothermal process in the presence of fluorinion. It is worth noting that our developed method can efficiently overcome the tedious process in the preparation of nanostructured tungstic oxide in the previous reports. The as-prepared samples have been characterized by XRD, SEM and TEM. Results showed the morphologies of the samples were nanoplate and the thickness of the plate was estimated at about several nanometers. TEM image further revealed that the plates were trigonal-like with equal lengths of about 300 nm. Furthermore the selected area electron diffraction ( SAED) pattern taken from a single nanoplate indicated that the nanoplates were the single crystals with a preferential growth direction along the [011] direction. The effect of the additive ions on the formation has also been discussed. It was found that the fluorinion played a key role in the formation of W2O6 center dot H2O nanoplates. It is hoped that our work could provide a new insight into the facile and rapid preparation of metal oxide nanomaterials.
Keyword ：
Crystal Structure Crystal Structure Hydrothermal Process Hydrothermal Process Nanomaterials Nanomaterials Plates Plates W2O6 center dot H2O W2O6 center dot H2O
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| GB/T 7714 | Zheng, Huarong , Liang, Shijing , Wu, Weiming et al. Facile and Rapid Synthesis of Pyrochlore W2O6 center dot H2O Nanoplate via a Fluorinion-Assisted Hydrothermal Process [J]. | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY , 2014 , 14 (3) : 2573-2576 . |
| MLA | Zheng, Huarong et al. "Facile and Rapid Synthesis of Pyrochlore W2O6 center dot H2O Nanoplate via a Fluorinion-Assisted Hydrothermal Process" . | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 14 . 3 (2014) : 2573-2576 . |
| APA | Zheng, Huarong , Liang, Shijing , Wu, Weiming , Ding, Zhengxin , Wu, Ling . Facile and Rapid Synthesis of Pyrochlore W2O6 center dot H2O Nanoplate via a Fluorinion-Assisted Hydrothermal Process . | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY , 2014 , 14 (3) , 2573-2576 . |
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本发明公开了一种提高有机材料表面耐候性的方法，在有机材料基底表面先涂覆有机无机杂化中间层，而后在中间层表面再涂覆无机纳米二氧化钛表面层，制得有机无机杂化中间层/无机纳米二氧化钛表面层复合防护涂层，以提高有机材料表面耐候性。本发明利用有机无机杂化中间保护层的双亲结构特性将有机基底材料表面的憎水基团与表面无机二氧化钛膜的亲水性基团实现良好结合；利用表面二氧化钛无机防护膜的吸收紫外线作用减少有机底层受到紫外线的辐射，从而提高有机基底材料的耐候性能；利用表面膜层的光催化作用和光自洁特性以净化空气和维护材料表面清洁。该复合涂膜能够广泛的应用在各种有机材料表面，方法简单易行，效果良好。
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| GB/T 7714 | 戴文新 , 王小祥 , 陈旬 et al. 一种提高有机材料表面耐候性的方法 : CN201310151845.6[P]. | 2013/4/27 . |
| MLA | 戴文新 et al. "一种提高有机材料表面耐候性的方法" : CN201310151845.6. | 2013/4/27 . |
| APA | 戴文新 , 王小祥 , 陈旬 , 付贤智 , 刘平 , 郑华荣 et al. 一种提高有机材料表面耐候性的方法 : CN201310151845.6. | 2013/4/27 . |
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Abstract ：
为了提高TiO2薄膜的光致亲水性及其持久性,将聚乙二醇(PEG)2000引入TiO2溶胶中,利用提拉法在载玻片上制备出含PEG的TiO2薄膜样品,通过测试样品紫外光照下水滴接触角的变化,考察不同浓度PEG对TiO2薄膜光致亲水性能的影响;并通过测试光照后的亲水薄膜样片暗处放置不同时间后接触角的变化,比较含PEG的TiO2薄膜和纯TiO2薄膜样品的亲水持久性.结果表明:PEG作为一种非离子型长链分子,其适量的添加可促进TiO2薄膜的光致亲水性及其持久性.基于薄膜样品的傅里叶变换红外(FTIR)光谱和紫外-可见漫反射光谱(UV-VisDRS)结果,认为PEG作为空穴捕获剂有助于TiO2薄膜中Ti3...
Keyword ：
Ti3+物种 Ti3+物种 TiO2薄膜 TiO2薄膜 亲水持久性 亲水持久性 光致亲水性 光致亲水性 空穴捕获剂 空穴捕获剂 聚乙二醇 聚乙二醇
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| GB/T 7714 | 郑华荣 , 王晓韡 , 林霞晖 et al. 聚乙二醇对TiO_2薄膜光致亲水性的促进作用 [J]. | 物理化学学报 , 2012 , 28 (07) : 1764-1770 . |
| MLA | 郑华荣 et al. "聚乙二醇对TiO_2薄膜光致亲水性的促进作用" . | 物理化学学报 28 . 07 (2012) : 1764-1770 . |
| APA | 郑华荣 , 王晓韡 , 林霞晖 , 耿强 , 陈旬 , 戴文新 et al. 聚乙二醇对TiO_2薄膜光致亲水性的促进作用 . | 物理化学学报 , 2012 , 28 (07) , 1764-1770 . |
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利用二氨基马来腈(DMNA)与二聚氰胺(DCDA)的高温共聚合反应,制备了石墨相氮化碳(g-C3N4),并通过X射线衍射(XRD)、傅里叶变换红外(FTIR)光谱、透射电镜(TEM)、氮气吸脱附实验(N2-sorption)、电子顺磁共振(EPR)、紫外-可见漫反射光谱(UV-VisDRS)和荧光(PL)光谱等表征手段,系统考察了共聚合改性对g-C3N4晶体结构、化学结构、能带结构、织构、光吸收性能和光催化性能等的影响.研究结果表明:共聚合改性后氮化碳材料仍保持石墨相晶体结构,但其π电子的离域性增强,并在催化剂表面产生异质结构,进而提高了氮化碳在可见光区域的光吸收性能,并促进了光生载流子的有效...
Keyword ：
光催化剂 光催化剂 共聚合 共聚合 太阳能利用 太阳能利用 氢能源 氢能源 氮化碳 氮化碳
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| GB/T 7714 | 郑华荣 , 张金水 , 王心晨 et al. 二氨基马来腈共聚合改性氮化碳光催化剂 [J]. | 物理化学学报 , 2012 , 28 (10) : 2336-2342 . |
| MLA | 郑华荣 et al. "二氨基马来腈共聚合改性氮化碳光催化剂" . | 物理化学学报 28 . 10 (2012) : 2336-2342 . |
| APA | 郑华荣 , 张金水 , 王心晨 , 付贤智 . 二氨基马来腈共聚合改性氮化碳光催化剂 . | 物理化学学报 , 2012 , 28 (10) , 2336-2342 . |
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High efficient photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over microcrystalline SrBi2Nb2O9 was observed upon purging with N-2 under UV-light irradiation. Its photocatalytic activity was higher than that of sample P25 (commercial TiO2, Degussa Co.). The analysis results of X-ray diffraction and X-ray photoelectron spectroscopy revealed that microcrystalline SrBi2Nb2O9 had high stability for the photocatalytic reduction of 4-nitroaniline. Further experiments indicated that ammonium oxalate was indispensable for the photocatalytic reduction of 4-nitroaniline. Moreover, the high efficient photocatalytic reduction of 4-nitroaniline over microcrystalline SrBi2Nb2O9 might be ascribed to its relatively high conduction band. (C) 2011 Elsevier B.V. All rights reserved.
Keyword ：
4-nitroaniline 4-nitroaniline Nitro reduction Nitro reduction Photocatalysis Photocatalysis p-Phenylenediamine p-Phenylenediamine SrBi2Nb2O9 SrBi2Nb2O9
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| GB/T 7714 | Wu, Weiming , Liang, Shijing , Chen, Yan et al. High efficient photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over microcrystalline SrBi2Nb2O9 [J]. | CATALYSIS COMMUNICATIONS , 2012 , 17 : 39-42 . |
| MLA | Wu, Weiming et al. "High efficient photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over microcrystalline SrBi2Nb2O9" . | CATALYSIS COMMUNICATIONS 17 (2012) : 39-42 . |
| APA | Wu, Weiming , Liang, Shijing , Chen, Yan , Shen, Lijuan , Zheng, Huarong , Wu, Ling . High efficient photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over microcrystalline SrBi2Nb2O9 . | CATALYSIS COMMUNICATIONS , 2012 , 17 , 39-42 . |
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Highly efficient photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over a commercial CdS photocatalyst was observed under visible light irradiation (lambda >= 420 nm) in water. The conversion of 4-nitroaniline and the selectivity of p-phenylenediamine were similar to 100% and similar to 98% after 9 min of visible light irradiation, respectively. The photoreduction efficiency of 4-nitroaniline over the CdS photocatalyst remained above 95% in the 5th cycle of testing. Its photocatalytic activity was much higher than those of nitrogen-doped TiO2 and commercial TiO2 photocatalysts. Further experimental results revealed that the ammonium formate and N-2 atmosphere were indispensable for the photocatalytic reduction of 4-nitroaniline over the CdS photocatalyst. On the basis of the results of electron spin resonance, photoexcited electrons and .CO2- radicals were detected in the present system. These species had strong reductive powers, and were therefore able to efficiently reduce 4-nitroaniline to p-phenylenediamine.
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| GB/T 7714 | Wu, Weiming , Liu, Guodong , Xie, Quanhua et al. A simple and highly efficient route for the preparation of p-phenylenediamine by reducing 4-nitroaniline over commercial CdS visible light-driven photocatalyst in water [J]. | GREEN CHEMISTRY , 2012 , 14 (6) : 1705-1709 . |
| MLA | Wu, Weiming et al. "A simple and highly efficient route for the preparation of p-phenylenediamine by reducing 4-nitroaniline over commercial CdS visible light-driven photocatalyst in water" . | GREEN CHEMISTRY 14 . 6 (2012) : 1705-1709 . |
| APA | Wu, Weiming , Liu, Guodong , Xie, Quanhua , Liang, Shijing , Zheng, Huarong , Yuan, Rusheng et al. A simple and highly efficient route for the preparation of p-phenylenediamine by reducing 4-nitroaniline over commercial CdS visible light-driven photocatalyst in water . | GREEN CHEMISTRY , 2012 , 14 (6) , 1705-1709 . |
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Nanocrystalline PbBi2Nb2O9 was successfully prepared by a modified sol-gel method. The as-prepared nanocrystalline PbBi2Nb2O9 was an active visible-light-driven photocatalyst for the photoreduction of 4-nitroaniline to p-phenylenediamine in aqueous solution upon purging with N-2. Its photocatalytic activity was determined by the balance between the surface area and crystallinity. The best sample was obtained after calcination at 650 degrees C, giving 4-nitroaniline conversion of similar to 100% and p-phenylenediamine selectivity of similar to 99% after irradiation for 150 min, which was much higher than those of bulk PbBi2Nb2O9 and TiO2-xNx photocatalysts. Further experiments revealed that oxalate anion (as a hole scavenger) was indispensable for the photocatalytic reduction of 4-nitroaniline. Moreover, on the basis of the electron spin resonance analysis result, a mechanism was proposed to explain the photoreduction of 4-nitroaniline over nanocrystalline PbBi2Nb2O9. (c) 2012 Elsevier Inc. All rights reserved.
Keyword ：
Nanocrystalline Nanocrystalline Nitro reduction Nitro reduction PbBi2Nb2O9 PbBi2Nb2O9 Photocatalysis Photocatalysis Visible light Visible light
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| GB/T 7714 | Wu, Weiming , Liu, Guodong , Liang, Shijing et al. Efficient visible-light-induced photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over nanocrystalline PbBi2Nb2O9 [J]. | JOURNAL OF CATALYSIS , 2012 , 290 : 13-17 . |
| MLA | Wu, Weiming et al. "Efficient visible-light-induced photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over nanocrystalline PbBi2Nb2O9" . | JOURNAL OF CATALYSIS 290 (2012) : 13-17 . |
| APA | Wu, Weiming , Liu, Guodong , Liang, Shijing , Chen, Yan , Shen, Lijuan , Zheng, Huarong et al. Efficient visible-light-induced photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over nanocrystalline PbBi2Nb2O9 . | JOURNAL OF CATALYSIS , 2012 , 290 , 13-17 . |
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Polyaniline/Bi3NbO7 nanocomposites were successfully prepared by a simple chemisorption approach. Their particle sizes ranged from 25 to 50 nm. The photocatalytic activities of the as-prepared samples for the rhodamine B degradation were evaluated under visible light (420 nm <= lambda <= 760 nm). The results indicated that the samples exhibited excellent photocatalytic activities and high activity stabilities for the degradation of rhodamine B. When the loading amount of polyaniline was 4 wt%, the obtained sample showed the highest photocatalytic activity. Its photocatalytic activity was also much higher than that of the reference sample (TiO2-xNx powders). On the basis of the experimental results, photo-generated holes were detected as the main oxidation species responsible for the decomposition of rhodamine B over polyaniline/Bi3NbO7. Furthermore, the enhanced photocatalytic activity was mainly ascribed to the synergetic effect between polyaniline and Bi3NbO7. (C) 2012 Elsevier B.V. All rights reserved.
Keyword ：
Chemical synthesis Chemical synthesis Nanocomposites Nanocomposites Photocatalysis Photocatalysis Polyaniline/Bi3NbO7 Polyaniline/Bi3NbO7
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| GB/T 7714 | Wu, Weiming , Liang, Shijing , Shen, Lijuan et al. Preparation, characterization and enhanced visible light photocatalytic activities of polyaniline/Bi3NbO7 nanocomposites [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2012 , 520 : 213-219 . |
| MLA | Wu, Weiming et al. "Preparation, characterization and enhanced visible light photocatalytic activities of polyaniline/Bi3NbO7 nanocomposites" . | JOURNAL OF ALLOYS AND COMPOUNDS 520 (2012) : 213-219 . |
| APA | Wu, Weiming , Liang, Shijing , Shen, Lijuan , Ding, Zhengxin , Zheng, Huarong , Su, Wenyue et al. Preparation, characterization and enhanced visible light photocatalytic activities of polyaniline/Bi3NbO7 nanocomposites . | JOURNAL OF ALLOYS AND COMPOUNDS , 2012 , 520 , 213-219 . |
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