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25 Nov 09:03

Facile fabrication of 2D/2D step-scheme In2S3/Bi2O2CO3 heterojunction towards enhanced photocatalytic activity

Publication date: 28 February 2020

Source: Applied Surface Science, Volume 504

Author(s): Hongxia Fan, Hualei Zhou, Wenjun Li, Shaonan Gu, Guowei Zhou

Abstract

To fabricate step scheme (S-scheme) heterojunction is one of the newly effective approaches to promote the photocatalytic performance of coupled semiconductors. Herein, a two-dimension (2D)/2D In2S3/Bi2O2CO3 S-scheme heterojunction photocatalyst was designed and fabricated through a facile two-step precipitation method. The as-synthetized composite presented in face-to-face hierarchical structure with enhanced photocatalytic performance towards the degradation of Rhodamine B (RhB) and tetracycline (TC) under light irradiation. The 2D/2D In2S3/Bi2O2CO3 heterojunction not only enlarges the light utilization region but also effectively restrains the recombination of useful photogenerated electron-hole pairs, which was demonstrated by diffuse reflection spectra (DRS), photoluminescence spectra (PLS) and active species trapping experiments. Particularly, the optimal performance was achieved using 10% In2S3/Bi2O2CO3 heterojunction with 91% degradation capacity towards RhB in 60 min, which was about 5 and 3 times higher than that of pure Bi2O2CO3 and In2S3, respectively. Moreover, the cycling performance of the photocatalysts further confirmed the excellent stability of the heterojunction. Based upon the characterization and experimental results, the mechanism of S-scheme heterojunction was employed to illustrate the effectively enhanced photocatalytic performance of the 2D/2D In2S3/Bi2O2CO3 heterojunction.

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Graphical abstract for this article

26 Jan 07:32

Hybrid organic-inorganic zeolites: status and perspectives

Catal. Sci. Technol., 2016, 6,2502-2527
DOI: 10.1039/C5CY02057C, Perspective
Roberto Millini, Giuseppe Bellussi
This Perspective article focuses on the recent progress and research directions in the preparation of hybrid organic-inorganic zeolites for applications in heterogeneous catalysis.
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15 Sep 10:00

一个老公的检讨书

by webmaster@u148.net ( 有意思吧 - 莫陌╰→行动派 )

 来自有意思吧(www.u148.net)

 

亲爱的老婆大人:

遵照您的旨意,我在书房里反省了一个小时四十三分零七秒,喝了一杯白开水,上了一次卫生间,没有抽烟,以上事实准确无误,请审查。

附上我的检讨报告,不当之处可以协商。

经过3个月的婚姻生活,我认为老婆同志温柔贤良,勤奋聪颖,是不可多得的好妻子,而身为丈夫的我却举止乖张,态度轻狂,所作所为确有值得商榷之处。

以下是我对自己恶劣行径的剖析,请领导批阅:

1、昨天的事情是我不对。你做的红烧茄子虽然有点咸,但是香醇可口,瑕不掩瑜,我不该指责你浪费盐。我这么求全责备,完全是暗藏嫉妒之心。不过再加点水是可以的。

2、你说喜欢陆毅的时候,我不该信口雌黄说我喜欢梁咏琪,害得你两天不能理我,极其痛苦。仔细一想,我的回答确实很不妥当,因为你的花心还局限于内地,我却冲到了港台,我还是喜欢周迅好了。

3、你喜欢看韩剧里的小政哥,我不该百般阻挠,你拿我和他比较我也不该表示抗议,因为人家小政哥都没有抗议。

4、星期六的那次婚礼,我说我开会,不知道能不能去,你准备了两个红包,一个100的,一个200的,结果我没去,你不小心送出去了厚的。亲爱的,我不该笑你,你已经做得很好了,换作我,可能将两个都一块儿送出去了。

5、上次你买来黄花鱼,我不该信誓旦旦,冒充大厨,结果你帮厨时欢呼雀跃,闻味时垂涎欲滴,吃的时候却垂头丧气,对于你脆弱的心理而言,这是难以承受的。

6、你剪短了头发,问我好不好看,我说好看,你很高兴;进一步求证,我说还行;你追问到底好不好,我回答,不如以前好,使你非常难过。这是我的错,以后此类的回复均以第一次为准。

7、你在网上认识了很多优秀的朋友,一时间鸿雁传书,玉照纷飞,我不该用报纸上的报道打击你 。不过你穿白裙子的那张照片真的不好看,还是穿高领衫的那张好,旁边有我当保镖,显得气派。

8、探望你外甥那次,你回来和我讨论谁应该洗尿布,我的确不该推卸责任,惹你生气。不过亲爱的,这项任务过于遥远,我们还是讨论谁负责生好了。他们家是谁生的?

9、你指责我把袜子到处乱放时,我不应该反诬你到处放书,毕竟袜子是臭的,书是香的。

10、你请雪儿吃麦当劳的时候,我不该在桌子下面偷偷踢她,让你大发雷霆,可是她踩坏了我那么多皮鞋,你为什么都不管?

11、你说我长得不如你漂亮的时候,我不应该顽固抵赖,你说得很对,证据确凿,可以让瞎子作证。

12、我下楼倒垃圾回来,你围着我转了好几圈,问我抽了几根,我说一根,你就大生其气。亲爱的,我真不知道你的鼻子如此灵敏,其实我抽了两根。

你一直是善解人意的女孩,希望你能够原谅我,给我改过自新的机会。为了家庭安定,经济繁荣,顺便提几个小小的建议:

1、不要指着电视里的帅哥说他像你从前的男友,你第一次近距离接近男士是在大二的舞会上,慌慌张张地狂踩别人的脚,很不幸那个人是我。

2、逛商店的时候,不要总是突发奇想,比如要买一个粉碎机回去做蒜泥,你不觉得我这个机器比较经济吗?

3、吃饭的时候,你总是嫌我吃得少,照相的时候却又嫌我胖,亲爱的,这真的让我很为难。


4、不要给我出一些刁钻古怪的问题,说那是脑筋急转弯,结果让我逻辑混乱。

5、不要在我看枪战片的时候给我讲笑话,而且不笑不行。

以上种种,请老婆大人明鉴。友情提示:卧室里昨日有蜘蛛出没,如需护驾,请联系客厅西面休闲区组合沙发一号,竭诚为您服务。

(愿爱情里的我们都多些宽容,多点策略,讲究方法,经营好我们的小爱情。)

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16 Mar 14:36

In situ one-step synthesis of metal-organic framework encapsulated naked Pt nanoparticles without additional reductants

J. Mater. Chem. A, 2015, 3,8028-8033
DOI: 10.1039/C5TA00030K, Paper
Hongli Liu, Lina Chang, Liyu Chen, Yingwei Li
A general and effective one-step strategy is developed to encapsulate tiny metal nanoparticles in various kinds of MOFs without any additional protecting agents and reducing agents.
The content of this RSS Feed (c) The Royal Society of Chemistry
31 Oct 03:01

European Sustainable Chemistry Award: W. Leitner and J. Klankermayer / Advancement of the Application of Agricultural and Food Chemistry Award: T. F. Hofmann / Bohlmann Lectureship: F. Diederich

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