国产在线 | 日韩,疯狂做受xxxx高潮不断,影音先锋女人aa鲁色资源,欧美丰满熟妇xxxx性大屁股

手機(jī)版

掃一掃,手機(jī)訪問

關(guān)于我們 加入收藏

麥克默瑞提克(上海)儀器有限公司

15 年金牌會(huì)員

已認(rèn)證

撥打電話
獲取底價(jià)
提交后,商家將派代表為您專人服務(wù)
立即發(fā)送
點(diǎn)擊提交代表您同意 《用戶服務(wù)協(xié)議》
當(dāng)前位置:
美國麥克儀器 >公司動(dòng)態(tài) >

每周分享2.19

每周分享2.19
美國麥克儀器  2016-02-19  |  閱讀:1288

今天給大家分享的是20158月份《RSC Advances》上發(fā)表的一篇名為:L-asparagine-assisted synthesis of flower-like -Bi2O3 and its photocatalytic performance for degradation of 4-phenylphenol under visible-light irradiation

文章摘要如下:

Synthesis of nanosized -Bi2O3 on a large-scale is a great challenge due to its metastable state. A facile L-asparagine-assisted reflux-calcination route was successfully developed for the large-scale preparation of -Bi2O3 micro/nanostructures under mild conditions (low temperature, atmospheric pressure, and wide temperature window). The composition, phase structure, morphology, surface area, and photoabsorption properties of as-synthesized -Bi2O3 and its precursor were systematically characterized. The phase transformation conditions and possible formation mechanism of flower-like -Bi2O3 were discussed. It is found that with a simple reflux process at 100 C under atmospheric pressure, uniform monodisperse bismuth-asparagine complex microspheres with average diameters of ~500 nm were produced, then flower-like -Bi2O3 micro/nanostructures were conveniently obtained after calcining the precursor at temperatures ranging from 340 to 420 C. A surface CO32- coordination effect introduced from L-asparagine was explained the formation of stabilized -Bi2O3 at low temperature (up to 420 C). The as-synthesized -Bi2O3 shows excellent photocatalytic activity toward the degradation of 4-phenylphenol under visible-light irradiation, which is 3.7 and 21.4 times faster than the removal rates of -Bi2O3 nanospheres and a commercial -Bi2O3, respectively, and allows for the elimination of 93.2% total organic carbon after 60 min of irradiation. In addition, the photogenerated reactive species were identified by radical scavenger experiments and electron paramagnetic resonance spectroscopy, then a possible visible-light-induced photocatalytic mechanisms was proposed.

該文章中材料表征采用的是美國麥克儀器ASAP 2460

詳情可參考下面鏈接:

!divAbstract


留言咨詢
(我們會(huì)第一時(shí)間聯(lián)系您)
關(guān)閉
留言類型:
     
*姓名:
*電話:
*單位:
Email:
*留言內(nèi)容:
(請(qǐng)留下您的聯(lián)系方式,以便工作人員及時(shí)與您聯(lián)系?。?/div>