²é¿´: 774  |  »Ø¸´: 2
¡¾ÐüÉͽð±Ò¡¿»Ø´ð±¾ÌûÎÊÌ⣬×÷ÕßNatsume15142½«ÔùËÍÄú 20 ¸ö½ð±Ò

Natsume15142

ľ³æ (СÓÐÃûÆø)

[ÇóÖú] EIÊÕ¼²éѯ ÒÑÓÐ1È˲ÎÓë

ÓÐÈËÄܰïæ²éѯÕâÆªÂÛÎÄÊÇ·ñEIÒѾ­ÊÕ¼ÁËÄØ£¿½ñÄê7Ô¼û¿¯£¬µ«ÊÇѧУÕâ±ß²é²»µ½¡£¹òÇó~~~~

EIÊÕ¼²éѯ
111.jpg
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xy59135210

Í­³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
¹§Ï²  ÒѾ­¼ìË÷

Accession number:


20153501211888






Title:

Experimental and theoretical studies on photocatalytic activity of N-doped TiO<inf>2</inf> with different concentration






Authors:

Tang, Bo-Ming1 ; Liu, Xiao-Feng1 ; Cao, Xue-Juan1; He, Li-Hong1





Author affiliation:

1School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China






Corresponding author:

Liu, Xiao-Feng






Source title:

Rengong Jingti Xuebao/Journal of Synthetic Crystals






Abbreviated source title:

Rengong Jingti Xuebao






Volume:

44






Issue:

7






Issue date:

July 1, 2015






Publication year:

2015






Pages:

1885-1889 and 1896






Language:

Chinese






ISSN:

1000985X






CODEN:

RJXUEN






Document type:

Journal article (JA)






Publisher:

Chinese Ceramic Society






Abstract:

The different concentration N-doped TiO<inf>2</inf> powders were synthesized by mechano-chemical method, using urea as nitrogen source. The crystallization property of N-TiO<inf>2</inf> samples were characterized by X-ray diffraction (XRD), and its photocatalytic activity was evaluated by methylene blue photodegradation. Furthermore, based on the first-principle, the energy band structure of different concentration N-doped TiO<inf>2</inf> powders were analyzed. The experiment results indicate that all of the crystal type of N-doped TiO<inf>2</inf> samples are anatase, which have well crystallization and possess similar size; the TiO<inf>2</inf> doped with 2wt% N presents the highest degradation efficiency in methylene blue photodegradation. Theoretical analysis indicates that impurity levels are introduced to the top of the valence band because nitrogen atoms substituted oxygen, and the optical absorption threshold wavelength exhibites a red shift. As the N concentration increasing, the band gap narrows, and the valence band width increases first, then decreases, which demonstrats the existence of peak photocatalytic activity of N-doped TiO<inf>2</inf>. The theoretical analysis is in accordance with the experiment result. ©, 2015, Chinese Ceramic Society. All right reserved.






Number of references:

12






Main heading:

Doping (additives)






Controlled terms:

Aromatic compounds - Band structure - Crystal impurities - Degradation - Electromagnetic wave absorption - Energy gap - Light absorption - Nitrogen - Organic polymers - Photocatalysis - Photodegradation - Powders - Titanium dioxide - Urea - Valence bands - X ray diffraction






Uncontrolled terms:

Crystallization properties - Degradation efficiency - First principles - Mechano-chemical methods - N-Doping - Photocatalytic activities - Theoretical study - Threshold wavelengths






Classification code:

711 Electromagnetic Waves - 741.1 Light/Optics - 801 Chemistry - 802.2 Chemical Reactions - 804 Chemical Products Generally - 815.1.1 Organic Polymers - 931.3 Atomic and Molecular Physics - 933 Solid State Physics






Database:

Compendex






Compilation and indexing terms, © 2015 Elsevier Inc.
2Â¥2015-10-10 21:50:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Natsume15142

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by xy59135210 at 2015-10-10 21:50:42
¹§Ï²  ÒѾ­¼ìË÷

Accession number:


20153501211888






Title:

Experimental and theoretical studies on photocatalytic activity of N-doped TiO<inf>2</inf> with differen ...

·Ç³£¸Ðл£¡£¡£¡

·¢×ÔСľ³æAndroid¿Í»§¶Ë
3Â¥2015-10-11 00:12:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ Natsume15142 µÄÖ÷Ìâ¸üÐÂ
²»Ó¦Öú È·¶¨»ØÌûÓ¦Öú (×¢Ò⣺ӦÖú²Å¿ÉÄܱ»½±Àø£¬µ«²»ÔÊÐí¹àË®£¬±ØÐëÌîд15¸ö×Ö·ûÒÔÉÏ)
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[½Ìʦ֮¼Ò] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8.O.551.O.5.4,¿ÆÄ¿È«,¿ÉÙ¤¼± +3 LIbGuocjEEYw 2026-08-26 4/200 2026-08-27 04:33 by Ie9AyIAvGbvs
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.55.1.O.54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 LIbGuocjEEYw 2026-08-26 4/200 2026-08-27 02:01 by Ie9AyIAvGbvs
[»ù½ðÉêÇë] »ù½ð²»ÖУ¬¹²Ãã +5 eulota 2026-08-26 5/250 2026-08-26 23:33 by young90
[»ù½ðÉêÇë] ¿´°åÉÏÕâô¶àÖеģ¬ÓеãÏñ50ÈËȺÀï49¸öÈ˶¼ÊÇÆ­×ÓµÄÄÇÖָоõ¡­¡­ +3 a089 2026-08-26 3/150 2026-08-26 23:21 by young90
[»ù½ðÉêÇë] ϵͳ²é²»µ½ +10 ¶­°Ëǧ 2026-08-26 10/500 2026-08-26 16:30 by Equinoxhua
[»ù½ðÉêÇë] Ôõô²é°¡ +5 huang1991js 2026-08-26 5/250 2026-08-26 16:09 by Equinoxhua
[»ù½ðÉêÇë] 2026Äê8ÔÂ25ÈÕ¹ú×ÔÈ»·Å°ñǰͻȻÊÕµ½ÁÐÈëÆÀÉóר¼ÒÓʼþ£¬ÓйØÏµÂ𣿠+25 ľˮ˼¶¹ 2026-08-25 28/1400 2026-08-26 14:53 by draco1987
[»ù½ðÉêÇë] ÄÜ·ñÍ˳ö²ÎÓëµÄÃæÉÏÏîÄ¿½â³ýÏÞÏî +23 koalala 2026-08-24 26/1300 2026-08-26 14:29 by ±¦±´³æ×Ó
[»ù½ðÉêÇë] ³öÀ´ÁË +9 trojank 2026-08-26 9/450 2026-08-26 14:25 by ±¦±´³æ×Ó
[»ù½ðÉêÇë] ÄÄλ¸ßÈËÖÐÁË£¬°Ñ²éѯµ½µÄ½ØÍ¼Ìù³öÀ´ÈÃÎÒ¿´¿´£¬ÈÃÎÒ³¤³¤¼ûʶ +4 yuleib84 2026-08-26 5/250 2026-08-26 13:40 by yuleib84
[»ù½ðÉêÇë] ¹úºÏÀïÃæÄÜ¿´µ½ÁË +7 Ò»»³Ü°Çï 2026-08-26 7/350 2026-08-26 11:23 by zhaosm1982
[»ù½ðÉêÇë] ¹ú¼ÊºÏ×÷¿É²éÁË£¬ÖÐÁËÃæÉÏ +18 Ldrop2023 2026-08-26 18/900 2026-08-26 11:15 by cmrandy
[»ù½ðÉêÇë] ÏîÄ¿ÐÅÏ¢ºÍ¾­·ÑÐÅÏ¢ÔÚϵͳÀï¶¼¿ÉÒÔ¿´µ½ÁË +6 wittyboy 2026-08-26 14/700 2026-08-26 10:55 by wittyboy
[»ù½ðÉêÇë] ½ñÌìÎñί»á¿ªÍêÁË£¬Ã÷Ìì³ö½á¹ûÂð +19 angus9576 2026-08-25 23/1150 2026-08-26 10:03 by zp519
[Ö°³¡ÈËÉú] ѧÉúײ¼û¸¨µ¼Ô±ËÍÍâÂô£¬µÚ¶þÌìÈ«°à¶¼³ÁĬÁË +3 ¾¨ÓãÈÚ½ð_Õã½­_É 2026-08-22 3/150 2026-08-26 09:01 by zzuzxg
[»ù½ðÉêÇë] ÔÚ¼á±ù»¹¸Ç×ű±º£µÄʱºò£¬ÎÒ¿´µ½ÁËÅ­·ÅµÄ÷»¨¡£ (½ð±Ò+10) +6 ziyangfang 2026-08-25 9/450 2026-08-25 20:26 by huagongfeihu
[»ù½ðÉêÇë] ÈËÆø²»ÐÐÁË +11 fansofjerry 2026-08-21 11/550 2026-08-25 11:04 by ¹Â¶ÀµÄÓ¢ÐÛ6
[»ù½ðÉêÇë] ÈÃÎÒÖÐÒ»¸öÃæÉϰɣ¡ +13 ´óƼ1987 2026-08-20 16/800 2026-08-24 10:23 by ̫ɵÁË
[»ù½ðÉêÇë] ¿´À´½ñÌì²»»á·Å°ñÁË£¿ +8 chengyan1220 2026-08-21 11/550 2026-08-21 17:52 by dcqxinyang
[»ù½ðÉêÇë] Ó¦¸ÃÊÇÏÂÖÜÈý26ÈÕ¹«²¼Á˰ɣ¿ +4 ¹þ¹þ¸ò£¿ 2026-08-21 4/200 2026-08-21 10:58 by Vivilian
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û