Efficient solar light-driven H-2 production: post-synthetic encapsulation of a Cu2O co-catalyst in a metal-organic framework (MOF) for boosting the effective charge carrier separation

Karthik Peramaiah; Balaraman Ekambaram; Neppolian Bernaurdshaw

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Efficient solar light-driven H-2 production: post-synthetic encapsulation of a Cu2O co-catalyst in a metal-organic framework (MOF) for boosting the effective charge carrier separation

机译：高效的太阳能light-driven 2生产:Cu2O post-synthetic封装co-catalyst在有机框架(MOF)促进有效的电荷载体分离

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The development of new and efficient catalytic systems for solar light-driven hydrogen generation is one of the prime focuses of contemporary chemical sciences. Indeed, the charge carrier separation efficiency of a photocatalyst plays a vital role in photocatalysis. Herein, we have successfully designed a Cu2O-encapsulating NH2-MIL-125(Ti) MOF by a post-synthetic encapsulation strategy. The Cu2O-encapsulating MOF material showed a remarkable enhancement in photocatalytic H-2 production activity under solar light illumination. Gratifyingly, the H-2 production activity under solar light was around approximate to 28-fold higher than that of the pristine MOF. The enhancement in photocatalytic activity may be attributed to efficient charge carrier separation through Ti3+ sites and the broad light absorption of the Cu2O-encapsulating MOF photocatalyst. The possible electron transport mechanism, potential energy diagram (V vs. NHE), and the existence of Ti3+ ions have been demonstrated by various spectroscopic studies.

机译：开发新的和有效的催化系统对太阳能light-driven氢一代的主要焦点之一现代化学科学。电荷载体的分离效率在光催化剂中起着至关重要的作用光催化作用。设计了一种Cu2O-encapsulating nh2 - mil - 125 (Ti)财政部由post-synthetic封装策略。Cu2O-encapsulating MOF材料显示在光催化2显著增强生产太阳能灯下活动照明。活动在近似附近的太阳光线28-fold高于原始MOF。光催化活性的增强归因于有效的电荷载体分离通过Ti3 +网站和广泛的光吸收Cu2O-encapsulating MOF的光催化剂。可能的电子传输机制,潜力能量图(V与新人道),的存在Ti3 +离子被各种证明光谱研究。

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来源
《Catalysis science & technology》 |2018年第13期|3286-3294|共9页
作者
Karthik Peramaiah; Balaraman Ekambaram; Neppolian Bernaurdshaw;
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作者单位

CSIR NCL, Div Organ Chem, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India;

SRM Univ, SRM Res Inst, Madras 603203, Tamil Nadu, India;

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原文格式 PDF
正文语种英语
中图分类汉语教学;
关键词
deuterium; INTERSTITIAL HYDROGEN GENERATION; encapsulationPhotocatalystsCharge carriersPrime;

机译：氢氘;间质代;encapsulationPhotocatalystsCharge;

Efficient solar light-driven H-2 production: post-synthetic encapsulation of a Cu2O co-catalyst in a metal-organic framework (MOF) for boosting the effective charge carrier separation

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