当前位置：
X-MOL 学术
›
ACS Catal.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Development of a Lower Energy Photosensitizer for Photocatalytic CO2 Reduction: Modification of Porphyrin Dye in Hybrid Catalyst System
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-01-09 00:00:00 , DOI: 10.1021/acscatal.7b02961 Dong-Il Won 1 , Jong-Su Lee 1 , Qiankai Ba 1 , Yang-Jin Cho 1 , Ha-Yeon Cheong 1 , Sunghan Choi 1 , Chul Hoon Kim 1 , Ho-Jin Son 1 , Chyongjin Pac 1 , Sang Ook Kang 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-01-09 00:00:00 , DOI: 10.1021/acscatal.7b02961 Dong-Il Won 1 , Jong-Su Lee 1 , Qiankai Ba 1 , Yang-Jin Cho 1 , Ha-Yeon Cheong 1 , Sunghan Choi 1 , Chul Hoon Kim 1 , Ho-Jin Son 1 , Chyongjin Pac 1 , Sang Ook Kang 1
Affiliation
|
A series of Zn–porphyrin dyes was prepared and anchored onto a TiO2 surface to complete a dye-sensitized photocatalyst system, Zn–porphyrin-|TiO2|-Cat, and tested as lower energy photosensitizers for photocatalytic CO2 reduction. Three major synthetic modifications were performed on the Zn–porphyrin dye to obtain a lower energy sensitization and improve the catalyst lifetime. We found that incorporating acetylene and linear hexyl groups into the Zn–porphyrin core allowed facile lower energy sensitization, and the addition of the cyanophosphonic acid as an anchoring group gave the long-term dye stability on the TiO2 surface. Under irradiation with red light of >550 nm and a light intensity of 207 mW/cm2, the hybrid ZnPCNPA catalyst showed a TONRe of ∼800 over an extended time period of 90 h. The photocatalytic activities of porphyrin hybrids differ greatly with the binding strength of the anchoring groups of dye and spectral range of the irradiated light and its intensity.
中文翻译：
用于光催化还原CO 2的低能光敏剂的开发：杂化催化剂体系中卟啉染料的改性
制备了一系列的Zn-卟啉染料并将其固定在TiO 2表面上，以完成染料敏化的光催化剂体系Zn-卟啉-| TiO 2 | -Cat，并作为低能光敏剂进行了光催化还原CO 2的测试。对锌-卟啉染料进行了三个主要的合成修饰，以获得较低的能量敏化并提高了催化剂寿命。我们发现，将乙炔和线性己基掺入Zn-卟啉核中可以轻松实现较低的能量敏化，并且添加氰基膦酸作为锚定基团可以使TiO 2表面具有长期的染料稳定性。在> 550 nm的红光和207 mW / cm 2的光强度照射下，ZnP CNPA杂化催化剂在90小时的延长时间内显示TON Re为〜800。卟啉杂化物的光催化活性与染料的锚定基团的结合强度和照射光的光谱范围及其强度有很大的不同。
更新日期：2018-01-09
中文翻译：
用于光催化还原CO 2的低能光敏剂的开发：杂化催化剂体系中卟啉染料的改性
制备了一系列的Zn-卟啉染料并将其固定在TiO 2表面上，以完成染料敏化的光催化剂体系Zn-卟啉-| TiO 2 | -Cat，并作为低能光敏剂进行了光催化还原CO 2的测试。对锌-卟啉染料进行了三个主要的合成修饰，以获得较低的能量敏化并提高了催化剂寿命。我们发现，将乙炔和线性己基掺入Zn-卟啉核中可以轻松实现较低的能量敏化，并且添加氰基膦酸作为锚定基团可以使TiO 2表面具有长期的染料稳定性。在> 550 nm的红光和207 mW / cm 2的光强度照射下，ZnP CNPA杂化催化剂在90小时的延长时间内显示TON Re为〜800。卟啉杂化物的光催化活性与染料的锚定基团的结合强度和照射光的光谱范围及其强度有很大的不同。
京公网安备 11010802027423号