±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 2517  |  »Ø¸´: 12

smcg

Í­³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾ÇóÖú¡¿Fe3O4¿ÅÁ£±íÃæ°ü¸²¿Ç¾ÛÌÇ Fe3O4ÈÜÒºµÄÒªÇó£¿ ÒÑÓÐ1È˲ÎÓë

ÔÚFe3O4¿ÅÁ£±íÃæ°ü¸²¿Ç¾ÛÌÇ£¬Fe3O4¿ÅÁ£±ØÐëÈÜÓÚË®ÈÜÒºÖУ¬»¹ÊÇÖ»ÓÃÐü¸¡Òº¾ÍÐÐÁË£¿

лл
»Ø¸´´ËÂ¥

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

ËÄÑõ»¯ÈýÌúÄÉÃ׿ÅÁ£ÖƱ¸¡¢ÐÞÊμ°°ü¸² Îü¸½²ÄÁÏ

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

juanjingmiao

Òø³æ (ÕýʽдÊÖ)

¡ï
smcg(½ð±Ò+1):лл²ÎÓë
yunruirui:лл²ÎÓë 2010-10-30 12:33:54
ÔÚË®ÈÜÒºÖз´Ó¦
2Â¥2010-10-30 10:15:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wangh123

ľ³æ (ÕýʽдÊÖ)

¡ï
smcg(½ð±Ò+1):лл²ÎÓë
yunruirui:лл²ÎÓë½»Á÷ 2010-10-30 12:34:03
ÄãµÄ·´Ó¦ÌåϵʲôÑùµÄ£¿
3Â¥2010-10-30 10:48:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lleecc1

½ð³æ (СÓÐÃûÆø)

¡ï
smcg(½ð±Ò+1):лл²ÎÓë
yunruirui:лл²ÎÓë½»Á÷ 2010-10-30 12:34:09
Õã½­ ´óѧµÄ Ðìлª×ö¹ý ÄÉÃ×ËÄÑõ»¯ÈýÌúµÄ ¸ºÔØ£¬ÄãÈ¥¿´¿´ËûµÄ Ó¢ÎÄÂÛÎÄ£¬ÓÐһƪµÄ£¬ÎҼǵá£
4Â¥2010-10-30 10:56:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lleecc1

½ð³æ (СÓÐÃûÆø)

yunruirui:лл½»Á÷ 2010-10-30 12:34:18
smcg(½ð±Ò+2): 2010-10-30 15:22:26
Chromium (VI) reduction in aqueous solutions by Fe3O4-stabilized Fe0 nanoparticles  Original Research Article

Journal of Hazardous Materials, Volume 172, Issues 2-3, 30 December 2009, Pages 1640-1645

Yanjun Wu, Jinghui Zhang, Yifei Tong, Xinhua Xu
ÊÇÕâÆª
5Â¥2010-10-30 11:01:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lleecc1

½ð³æ (СÓÐÃûÆø)

yunruirui:лл²ÎÓë 2010-10-30 12:34:35
¿Ç¾ÛÌÇ ¸ºÔØÄÉÃ×Ìú£¬ÄÏ¿ª´óѧ ½ð³¯êÍ ×ö¹ýµÄ¡£
6Â¥2010-10-30 11:02:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mrzouhao

ľ³æÖ®Íõ (ÎÄ̳¾«Ó¢)

¡ï ¡ï ¡ï
smcg(½ð±Ò+1):лл²ÎÓë
yunruirui(½ð±Ò+2):лл²ÎÓë 2010-10-30 12:34:27
smcg(½ð±Ò+2): 2010-10-30 15:22:41
J Hazard Mater. 2009 Dec 30;172(2-3):1640-5. Epub 2009 Aug 18.

Chromium (VI) reduction in aqueous solutions by Fe3O4-stabilized Fe0 nanoparticles.
Wu Y, Zhang J, Tong Y, Xu X.

Department of Environmental Engineering, Zhejiang University, Zheda Road 38#, Hangzhou 310027, People's Republic of China.

Abstract
This paper describes the use of highly reactive magnetite (Fe(3)O(4)) nanoparticles-stabilized Fe(0) nanocomposites for the reduction and mitigation of hexavalent chromium Cr(VI) species in aqueous solutions. Higher proportions of Fe(3)O(4) in the nanocomposites could increase the rate of Cr(VI) reduction. In the absence of magnetite, the Cr(VI) mitigation rate was just 51.4% after 60 min of reaction, while with an initial Fe(3)O(4) mass loading of 3 g l(-1), the Cr(VI) mitigation rate was nearly 100% after 60 min. The optimal ratio of Fe(3)O(4):Fe(0) for the mitigation of Cr(VI) was found to be 40:1. Otherwise, solution pHs significantly affected the rate of Cr(VI) reduction, with reactions occurring more rapidly under acidic or neutral than basic conditions. It is hypothesized that the high efficiency of the Fe(3)O(4) nanoparticles-stabilized Fe(0) nanocomposites for Cr(VI) reduction was a direct result of the attachment of Fe(0) nanoparticles to the surface of magnetite, which prevents the aggregation of nano-Fe(0), moreover, the electron transfer during the reduction process most likely takes place via Fe(0) nanoparticles that are located at the magnetite octahedral sites, which are versatile redox centers as they can accommodate both Fe(III) and Fe(II), and this will promote the reduction of Cr(VI). Cr(VI) reduction is coupled with nano-Fe(0) oxidation. Nano-Fe(0) particles are located at the magnetite octahedral sites. Ions of Fe(II) and Fe(III) accommodated by magnetite octahedral sites are products of nano-Fe(0) oxidation. Therefore, Cr(VI) reduction is mediated either by nano-Fe(0) (direct reduction) or Fe(II) species (indirect reduction). Additionally, catalytic Cr(VI) reduction by molecular H(2) (or atomic H) is possible.
7Â¥2010-10-30 11:27:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡ï
smcg(½ð±Ò+1):лл²ÎÓë
8Â¥2010-10-30 11:31:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

smcg

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by wangh123 at 2010-10-30 10:48:17:
ÄãµÄ·´Ó¦ÌåϵʲôÑùµÄ£¿

¹²³Áµí·¨×ö
9Â¥2010-10-30 15:20:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

smcg

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by lleecc1 at 2010-10-30 10:56:11:
Õã½­ ´óѧµÄ Ðìлª×ö¹ý ÄÉÃ×ËÄÑõ»¯ÈýÌúµÄ ¸ºÔØ£¬ÄãÈ¥¿´¿´ËûµÄ Ó¢ÎÄÂÛÎÄ£¬ÓÐһƪµÄ£¬ÎҼǵá£

ллÁË
10Â¥2010-10-30 15:21:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ smcg µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085600£¬320·ÖÇóµ÷¼Á +7 ´ó²öС×Ó 2026-04-01 8/400 2026-04-05 21:19 by ѧԱ8dgXkO
[¿¼ÑÐ] Çóµ÷¼Á Ò»Ö¾Ô¸Î÷ÄϽ»Í¨´óѧ085701»·¾³¹¤³Ì 282·Ö +7 ¶à¶à°®³Ôºº±¤ 2026-04-04 7/350 2026-04-05 19:47 by ¸£Å©×Ê»·_»·¾³»ù
[¿¼ÑÐ] 308Çóµ÷¼Á +4 maverick^_^ 2026-04-03 4/200 2026-04-05 19:08 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Ò»Ö¾Ô¸Çà¿Æ085500£¬³õÊÔ295·Ö£¬¹«¹²¿Î213·Ö +3 Óöµ½µÄÈËÔ¸Íû¶¼Ä 2026-04-05 3/150 2026-04-05 18:45 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ÊýÒ»Ó¢Ò»274»úеµ÷¼Á +5 ÐÇÔÉÁ÷ϼ 2026-04-04 6/300 2026-04-05 11:38 by arrow8852
[¿¼ÑÐ] 081700»¯Ñ§¹¤³ÌÓë¼¼Êõ Ò»Ö¾Ô¸Öк£Ñó 323 Çóµ÷¼ÁѧУ +16 ÅûÐÇºÓ 2026-04-03 16/800 2026-04-05 09:00 by dick_runner
[¿¼ÑÐ] ÄÐÉú£¬Ò»Ö¾Ô¸»¦9ÉúÎïѧ071000£¬³õÊÔ308Çóµ÷¼Á +3 Áõīī 2026-04-04 3/150 2026-04-05 08:26 by barlinike
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©»¯¹¤´óѧ£¬³õÊԳɼ¨350Çóµ÷¼Á +9 ÑØ°¶?±´¿Ç 2026-04-04 14/700 2026-04-05 01:09 by ÑØ°¶?±´¿Ç
[¿¼ÑÐ] ²ÄÁÏר˶322·Ö +11 ¹þ¹þ¹þºðºðºð¹þ 2026-04-02 11/550 2026-04-04 23:37 by ÓÀ×ÖºÅ
[¿¼ÑÐ] 324Çóµ÷¼Á +14 ÏëÉÏѧÇóµ÷ 2026-04-02 15/750 2026-04-04 20:31 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 321Çóµ÷¼Á +6 ÈÏÕæÇóÉÏѧ 2026-04-03 6/300 2026-04-04 19:51 by dongzh2009
[¿¼ÑÐ] 085600£¬320·ÖÇóµ÷¼Á +14 ´ó²öС×Ó 2026-04-04 15/750 2026-04-04 16:27 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 0703Çóµ÷¼Á +6 zizimo 2026-03-31 6/300 2026-04-04 14:16 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 334Çóµ÷¼Á +9 Trying] 2026-03-31 9/450 2026-04-03 15:18 by ×ÁçíØ¼
[¿¼ÑÐ] 266·Ö£¬Ò»Ö¾Ô¸µçÆø¹¤³Ì£¬±¾¿Æ²ÄÁÏ£¬Çó²ÄÁÏרҵµ÷¼Á +9 ÍÛºôºßºôºß 2026-04-02 9/450 2026-04-03 12:05 by 1753564080
[¿¼ÑÐ] 346Çóµ÷¼Á +5 Ö£³ÏÀÖ 2026-04-02 5/250 2026-04-02 16:38 by SZW_UJN
[¿¼ÑÐ] 270µ÷¼Á +7 maxjxbsk 2026-04-02 7/350 2026-04-02 09:50 by yulian1987
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©¿Æ¼¼£¬085601×Ü·Ö305Çóµ÷¼Á +9 °ëÉú¹Ï£¡ 2026-04-01 11/550 2026-04-02 08:28 by Wang200018
[¿¼ÑÐ] ½­ËտƼ¼´óѧÕвÄÁÏÑо¿Éú +4 Su032713. 2026-04-01 5/250 2026-04-01 22:03 by cccchenso
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷µç085401ÊýÒ»Ó¢Ò»299Çóµ÷¼Á Áù¼¶521 +4 °®³Ô´óѼÀæ 2026-03-31 4/200 2026-03-31 11:51 by ²«»÷518
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û