黄姜纤维素渣固态发酵生产蛋白饲料
作者：
伍新花;曾清如;史端辅;彭亮;唐伟;...
期刊：
环境工程学报 ,2012年6(5):1734-1738 ISSN：1673-9108
作者机构：
湖南农业大学资源环境学院,长沙,410128
关键词：
产朊假丝酵母;黑曲霉;固态发酵;黄姜纤维素渣
摘要：
利用酵母菌和黑曲霉对黄姜纤维素渣进行固态发酵生产蛋白饲料。研究了接种量、温度、固液比、发酵时间和通风量对发酵的影响。同时在单菌种发酵的基础上,对酵母菌和黑曲霉的混合发酵进行了初步探索,研究结果表明,混菌发酵的实验效果比单菌发酵的效果好。当条件为：黄姜纤维素渣25 g,加入脲0.53 g,KH2PO40.05 g,K2HPO40.05 g,Mg-SO40.05 g,NaCl 0.05 g,CaCl20.01 g,接种量为14%,温度30℃,固液比2∶1,发酵产物的蛋白质量分数可达到13.98%。
语种：
中文
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利用水华蓝藻制备高效抗生素捕获剂
作者：
彭亮;雷鸣;曾清如;蔡彦明#&#&#Peng Liang;Lei Ming;...
作者机构：
College of Resources & Environment, Hunan Agricultural University, Changsha 410128, China;湖南农业大学资源环境学院,长沙410128;Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China;农业部环境保护科研监测所,天津 300191
会议名称：
2012全国农业重金属污染检测与防治学术研讨会
会议时间：
2012-11-27
会议地点：
深圳
会议论文集名称：
2012全国农业重金属污染检测与防治学术研讨会论文集
关键词：
湖泊富营养化;水华蓝藻;雌性生物碳;抗生素捕获剂
摘要：
中国水华蓝藻大规模的爆发,为了实现蓝藻的高效资源化,同时减少大气中的CO2,减缓温室效应,该文利用水华蓝藻在低温下水热反应,合成磁性的生物炭.试验发现,水华蓝藻与硫酸亚铁氨的含量分别为3g和6mmol时,水热温度为170℃,反应时间为6h,制备的磁性生物炭对典型抗生素四环素具有最佳的吸附效果.吸附过程符合假二级动力学,吸附速率常数为0.002 5,吸附热力学符合Langmuir吸附模型,最大吸附容量为95.86 mg/g.吸附四环素后的磁性生物炭在低浓度NaOH浸泡下可以再生重复使用,经过4次重复使用,对四环素的去除效率一直保持在96％,表明此材料具有优异的重复性能.利用水华蓝藻作为碳源,过渡金属作为催化剂制备具有特定功能的生物炭,为水华蓝藻的资源化提供新的思路,也间接地为湖泊的富营养化问题提出新的解决途径.
语种：
中文
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Physiological responses of Microcystis aeruginosa NIES-843 (cyanobacterium) under the stress of chitosan modified kaolinite (CMK) loading
作者：
Shao, Jihai;Wang, Zhongjie;Liu, Yang;Liu, Hong;Peng, Liang;...
期刊：
Ecotoxicology ,2012年21(3):698-704 ISSN：0963-9292
通讯作者：
Li, Renhui
作者机构：
[Peng, Liang; Wei, Xiangdong; Shao, Jihai; Lei, Ming; Liu, Hong] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Wang, Zhongjie; Li, Renhui; Liu, Yang] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
通讯机构：
[Li, Renhui] C;Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词：
Physiological responses;Microcystis aeruginosa;Chitosan modified kaolinite
摘要：
Flocculation with clays is a promising and environmentally friendly way to remove algal blooms. Physiological responses of Microcystis aeruginosa NIES- 843 under the stress of chitosan modified kaolinite (CMK) loading were first reported in this paper. Compared with the control, the contents of chlorophyll a (Chl a) and carotenoids showed no significant difference at a CMK loading of 40 mg/l, but the phycocyanin content was significant lower than the control at this loading level. The contents of Chl a, carotenoids, phycocyanin and allophycocyanin were all significantly lower than the control at 80 and 160 mg/l CMK, and the leakage of phycobilins occurred at these two loading levels suggesting that flocculation with CMK could cause the damage of cellular membranes. The activities of extracellular alkaline phosphatase activity (E-APA), superoxide dismutase (SOD) and catalase (CAT) were all dramatically boosted under the stress of CMK loading. The changes of cellular dehydrogenase activity exhibited the same trends as of Chl a and carotenoids, and it decreased to the levels of lower than detectable limits on 12 and 8th day at a CMK loading of 80 and 160 mg/l, respectively. These results indicated that flocculation with CMK could cause cell mortality of M. aeruginosa. © 2011 Springer Science+Business Media, LLC.
语种：
英文
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羟基磷灰石对溶液及土壤中Pb2+的吸附研究
作者：
刘爱军;彭亮;孙静;唐伟;周婷;...
期刊：
湖南农业科学 ,2011年(21):31-33 ISSN：1006-060X
作者机构：
湖南农业大学资源环境学院,湖南长沙,410128;[曾清如; 唐伟; 周婷; 彭亮; 刘爱军; 孙静] 湖南农业大学
关键词：
羟基磷灰石;吸附;土壤
摘要：
羟基磷灰石（HAP）能有效固定土壤和溶液中的Pb^2＋，研究了羟基磷灰石对Pb^2＋的吸附特性，讨论了离子的初始浓度，羟基磷灰石的用量、作用时间及离子间的相互影响。结果表明：HAP对Pb^2＋的最佳吸附条件为Pb^2＋初始浓度为500mg/L，HAP用量为5g/L，吸附时间为40min。在Pb2＋、F^-混合溶液中，Ph^2＋/F-质量浓度比的改变对HAP吸附Pb^2＋的影响很大，对P的吸附率没有太大影响。HAP在茶园土壤中的最佳添加量是10g／kg。
语种：
中文
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Improvement of formaldehyde sensitivity of ZnO nanorods by modifying with Ru(dcbpy)2(NCS)2
作者：
Peng, Liang* ;Qin, Pufeng;Zeng, Qingru;Song, Huijuan;Lei, Ming;...
期刊：
Sensors and Actuators B-Chemical ,2011年160(1):39-45 ISSN：0925-4005
通讯作者：
Peng, Liang
作者机构：
[Mwangi, Jubilant J. N.; Peng, Liang; Qin, Pufeng; Zeng, Qingru; Lei, Ming] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Song, Huijuan] Hunan Petrochem Vocat Technol Coll, Yueyang 414012, Peoples R China.;[Wang, Dejun; Xie, Tengfeng] Jilin Univ, Coll Chem, Changchun 130023, Peoples R China.
通讯机构：
[Peng, Liang] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
ZnO nanorods;Photocurrent;RuN3;UV light;Sensor
摘要：
The ZnO nanorods (diameter of 40 nm and 100 nm) were modified with Ru(dcbpy)(2)(NCS)(2) (RuN3), and their responses to formaldehyde were measured at room temperature. All the results showed that the responses to formaldehyde of modified ZnO were higher than that of bare ZnO; especially the responses of modified ZnO nanorods with diameter of 40 nm-5 ppm formaldehyde was about 200% higher than that of bare ZnO. The UV-vis absorption spectrum and transient photovoltage analysis showed that the high responses of modified ZnO mainly arose from the strong photocatalytic oxidizing effect induced by the increasing of the absorption and photo-generated electron-hole separation. Our results demonstrate that the modification of RuN3 is a promising approach on improving the formaldehyde responses of ZnO nanorods. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
语种：
英文
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Room-temperature gas sensing properties of cobalt-doped ZnO Nanobelts with visible light irradiation
作者：
Peng, Liang* ;Zeng, Qingru;Song, Huijuan;Qin, Pufeng;Lei, Ming;...
期刊：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING ,2011年105(2):387-392 ISSN：0947-8396
通讯作者：
Peng, Liang
作者机构：
[Wang, Tianyang; Peng, Liang; Qin, Pufeng; Song, Huijuan; Tie, Boqing; Zeng, Qingru; Lei, Ming] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Peng, Liang] H;Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.
关键词：
Visible Light Irradiation;Ethanol Vapor;Contact Potential Difference;Surface Photovoltage;Surface Photovoltage Spectroscopy
摘要：
Cobalt-doped ZnO (Co:Zn is 1, 3 and 5 mol%) nanobelts were prepared by a multi-components precursor self-assembled method, and characterized by the scanning electronic microscopy (SEM), X-ray diffraction (XRD), surface photocurrent spectroscopy and surface photovoltage spectroscopy. The room-temperature gas sensing of oxygen and ethanol vapor was measured with irradiation of visible light. The sensitivity is decreased on increasing the doped concentration. The cobalt-doped ZnO (1%) showed higher sensitivity and faster response rate to ethanol than to oxygen. The results are due to a large amount of photo-generated holes left in the surface of cobalt-doped ZnO (1%) nanobelts. And the changed photocurrent intensity was linear as function of the ethanol vapor. © 2011 Springer-Verlag.
语种：
英文
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Size- and photoelectric characteristics-dependent formaldehyde sensitivity of ZnO irradiated with UV light
作者：
Peng, Liang;Zhai, Jiali;Wang, Dejun;Zhang, Yu;Wang, Ping;...
期刊：
Sensors and Actuators B-Chemical ,2010年148(1):66-73 ISSN：0925-4005
通讯作者：
Xie, Tengfeng
作者机构：
[Zhai, Jiali; Wang, Dejun; Peng, Liang; Zhang, Yu; Zhao, Qidong; Wang, Ping; Xie, Tengfeng] Jilin Univ, Coll Chem, Changchun 130012, Jilin, Peoples R China.;[Peng, Liang] Hunan Agr Univ, Coll Resource & Environm, Changsha 410128, Hunan, Peoples R China.;[Xie, Tengfeng] Jilin Univ, Coll Chem, Qianjin St 2699, Changchun 130012, Jilin, Peoples R China.
通讯机构：
[Xie, Tengfeng] J;Jilin Univ, Coll Chem, Qianjin St 2699, Changchun 130012, Jilin, Peoples R China.
关键词：
Formaldehyde;Gas sensor;Photocatalysis;Photocurrent;ZnO
摘要：
The ZnO nanorods with different diameters (similar to 300, 100, 40 nm) and nanoparticles (similar to 6 nm) were prepared, and their sensitivities to formaldehyde at room temperature were measured with and without the UV light irradiation (the intensity of light is 0.155 mW/cm(2)). The XRD, TEM and SEM were utilized to examine the size of crystal and the morphology of material. The transient photovoltage and photoluminescence spectra were utilized to investigate the photoelectric properties of ZnO. The ZnO nanorods with diameter of similar to 40 nm own the highest response to formaldehyde with the UV light illumination than that of other samples. It is attributed to the large surface-to-volume ratio and high photo-generated charge efficiency, which are two key parameters to determine the gas response. The transient photovoltage results further demonstrate that the photo-generated charge efficiency of gas sensing element decreases as the surface-to-volume ratio increases (i.e. the size of crystal decreases). Therefore, the particles with highest sensitivity are of a certain size, neither the largest nor the smallest tested. Our work may supply a direction to fabricate the high performance gas sensor with UV light illumination. (C) 2010 Elsevier B.V. All rights reserved.
语种：
英文
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