通讯单位：香港中文大学，香港大学、中科院大连化学物理研究所论文DOI：10.1038/s41467-024-49168-2 人工光合作用利用太阳能生产清洁燃料的一种很有前途的方法。光催化分解水实现H2和O2的2:1的比例是一个挑战。这主要归结于它在实际中受到光生载流子迁移缓慢和电子/空穴快速复合两个问题的制约。合理设计的空间分化的二维Bi4Ti3O12（BTO）纳米片，以增强整体的水分解是一种有效的策略。这种策略实现了空间分化结构克服了单晶半导体中不同晶面间电荷转移的限制。所得光催化剂在模拟太阳光照下，以接近2:1的化学计量比并实现太阳转化氢气效率为0.1%。热点1. 盐酸特异性刻蚀钛酸铋晶面，合成了具有空间分化结构的钛酸铋单晶。 热点2. 合理设计的空间分化的二维BTO纳米片克服了单晶半导体中不同晶面间电荷转移的限制，能够有效的促进电荷载流子的重新分布，最终实现光分解水产生化学计量比的氢气与氧气。 钛酸铋是一种层状结构的二维材料，其特点是铋氧[Bi2O2]2+结构和钙钛矿样[Bi2Ti3O10]2-结构的规则堆叠，其中Bi-O键可以通过质子和卤化物离子的相互作用蚀刻。最终导致沿边缘区域形成空心结构（图1）。
SPVM研究了光生电荷分布与结构形态之间的空间相关性以及光吸收与载流子迁移和转移之间的依赖关系的有效工具，结果发现电子转移与材料的空间形态和结构有关。具有蚀刻边缘的空心区域具有丰富的光生电子，这主要是由于边缘较薄的区域可以加速电子从体和中心向表面的迁移（图2）。
在光照射下分别在光催化表面沉积析氢助催化剂Ru/CrOx和析氧助催化剂CoOx。刻蚀的BTO的光催化活性显著提高，分别达到371.8 μmol h-1 (H2)和188.8 μmol h-1 (O2)的最大值，是原始单晶BTO的212倍。最后，刻蚀的BTO的太阳能到氢(STH)能量转换效率估计为0.1%（图3）。采用一步酸蚀法合成了具有空间分异结构的钛酸铋单晶，从而实现使光激发电荷从纳米结构的中心快速迁移到其表面和边缘区域，达到有效的电荷转移和分离。空间分化的光催化剂的一步激发光催化OWS在模拟太阳光照下的总太阳能制氢效率为0.1%，比原始单晶钛酸铋高约212倍。全文链接：https://www.nature.com/articles/s41467-024-49168-2
Very shortly this site will be famous amid all blogging and site-building people, due
to it's nice content
casino en ligne francais
These are truly impressive ideas in on the topic of blogging.
You have touched some nice points here. Any way keep
up wrinting.
casino en ligne francais
Hi just wanted to give you a quick heads up and let you know a few of the images aren't loading correctly.
I'm not sure why but I think its a linking issue. I've tried it
in two different browsers and both show the same outcome.
casino en ligne francais
Wow that was unusual. I just wrote an extremely long comment but after I clicked submit
my comment didn't show up. Grrrr... well I'm not writing all that over again. Regardless, just
wanted to say great blog!
casino en ligne
Spot on with this write-up, I really believe this web site needs far more attention. I'll probably be returning to see more, thanks for the advice!
casino en ligne
Greetings! This is my 1st comment here so I just wanted to give a quick shout out
and say I really enjoy reading through your blog posts.
Can you suggest any other blogs/websites/forums that go over
the same topics? Thanks a lot!
meilleur casino en ligne
It's impressive that you are getting thoughts from this paragraph
as well as from our dialogue made here.
meilleur casino en ligne
Currently it appears like Wordpress is the preferred blogging platform available right now.
(from what I've read) Is that what you are using
on your blog?
casino en ligne
Good way of describing, and nice article to get information about my presentation subject, which i am
going to present in institution of higher education.
casino en ligne
constantly i used to read smaller posts which also clear their
motive, and that is also happening with this piece of writing which I am reading at this time.
casino en ligne France