CuS -mediated two reaction systems enable biomimetic photocatalysis in CO2 reduction with visible light

Wang, Ling-Xiang; Wang, Zhiqiang; Wang, Liang; Yang, Zhiyuan; Zhu, Qi; Liu, Yifeng; Fang, Wei; Gong, X. G.; Liu, Yuefeng; Liu, Xiaolong; Xiao, Feng‐Shou

doi:10.1016/j.jechem.2021.06.003

Cited by 16 publications

(8 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Actually, the conversion of enol into the keto group can improve the stability of COF, beneficial to its subsequent experimental reaction . Accordingly, the peak appeared at 617 cm –1 of the Cu–S bond and featured peak for C–N (1277 cm –1 ) of TP-TA are also founded in the CuS x /TP-TA hybrid material. , All these above experimental results indicate the successful preparation of hybrid material. More than that, the major functional groups in Cu 2 S/TP-TA are also investigated by FI-IR spectra (Figure S6), and characteristic peaks of individual components are observed in the hybrid material.…”

Section: Resultsmentioning

confidence: 66%

See 1 more Smart Citation

Defect Engineering in CuS_x/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO₂ into CO

Mao

Wang

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

The photocatalytic CO2 reduction reaction (CO2RR) provides an attractive approach to tackling environmental issues. To actualize the optimal catalytic efficiency, one efficacious strategy is to rationally modulate the charge migration for the adopted heterogeneous catalysts. Herein, by virtue of a one-step hydrothermal method, Cu2S nanospheres and defect-rich Cu2S (CuS x ) nanosheets are wrapped by a triazine-containing covalent framework (TP-TA COF), resulting in CuS x /TP-TA and Cu2S/TP-TA. Owing to the heterojunction construction that suppresses the carrier recombination, both hybridized structures present enhanced charge migration in comparison to that of their corresponding sulfides and COF constituents. It is worth emphasizing that CuS x /TP-TA proffers a significantly greater photocurrent than Cu2S/TP-TA. The subsequent photocatalytic reduction of CO2 also exhibits an apparently higher CO evolution rate, about 2.8 times higher than the Cu2S/TP-TA photocatalyst. The above evident improvement owes much to the heterostructure establishment between CuS x and TP-TA COF, as well as the synergistic effect provided by the defect engineering for CuS x , both of which are able to enhance the separation efficiency of photoinduced carriers. Our work sheds light on the rational construction of heterogeneous structures between organic and inorganic photocatalysts, which emphasizes the possible synergistic effect of defect centers for enhancing photocatalytic performance.

show abstract

Section: Resultsmentioning

confidence: 66%

“…The preparation of CuS x was slightly improved according to the previous reference . Briefly, copper acetylacetonate (0.3 mmol, 78.53 mg), thiourea (0.6 mmol, 45.67 mg), hexamethylenetetramine (1.5 mmol, 210.29 mg), and ammonium fluoride (1.5 mmol, 55.50 mg) were quickly blended in a 15 mL of solution of ethylene glycol (EG).…”

Section: Methodsmentioning

confidence: 99%

Defect Engineering in CuS_x/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO₂ into CO

Mao

Wang

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…Catalysis of Carboxyl Cyclization of Alkynyl Alcohol with CO 2 . Nowadays, the policy of carbon neutral and peak carbon dioxide emissions has attracted increasing global concentration on exploring effective methods to chemically convert CO 2 into a valuable commodity, 53 mainly consisting of the photoelectric catalyzed reduction of CO 2 , carboxylate of terminal alkynes with CO 2 , cycloaddition of epoxides with CO 2 , and carboxylate cyclization of propargylic alcohols with CO 2 . 54 The coupling of propargylic alkylidene cyclic carbonates is a significant reaction and widely applied to pharmaceutical chemistry.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Constructing a Redox-Active Cu(I)-Pyridyltriazine Framework for Catalytic Photoreduction of Nitrobenzenes and Carboxylic Cyclization of Alkynol with CO₂

et al. 2022

View full text Add to dashboard Cite

A redox-active metal−organic framework, Cu(I)-TPT, was synthesized by combination of Cu(I), the halogenoid cyanide group (CN), and redox-active organic bridging ligand 2,4,6-tri(4-pyridyl)-1,3,5triazine (TPT) into one single framework. Cu(I)-TPT displays a twodimensional (2D) plane structure by 1D −Cu(I)−CN− chains connected with TPT ligands. Cu(I)-TPT exhibits intrinsic semiconductive features with a moderate bandgap energy (1.97 eV). Under irradiation, Cu(I)-TPT has an electrical conductivity of 2 × 10 −7 S cm −1 in the presence of the sacrificial electron donor ethanol under the ambient test conditions, which is owing to the π−π stacking interactions between TPT moieties, the d−π conjugation between the Cu(I) ion and the CN ligands, and the permanent microporosity. Cu(I)-TPT displayed highly efficient hole− electron separation and ordered electron transfer, which is beneficial for the photoreduction of nitrobenzene. In addition, Cu(I)-TPT displays high efficiency in carboxylic cyclization of alkynol with CO 2 because it possesses highly decentralized Cu(I) catalytic sites to the active C�C bond of alkynol and affluent N atoms on the 2D sheets to facilitate the trapping and activation of CO 2 .

show abstract

“…The peaks at 1307 and 1508 cm À 1 were assigned to monodentate carbonate group (m-CO 3 2À ). [24] With light irradiation, a new IR peak at 1627 cm À 1 attributed to COOH* was detected, which is a crucial intermediate for reduction of CO 2 into CO. [21] The prominent peaks at 1924, 1986, and 2098 cm À 1 are related to CO* formation. [25] As expected, the emergence of signals related to COOH* and CO* is accompanied by the irradiation, evidencing CO 2 reduction is triggered by light.…”

Section: Chemsuschemmentioning

confidence: 99%

A Hybrid Assembly with Nickel Poly‐Pyridine Polymer on CdS Quantum Dots for Photo‐Reducing CO₂ into Syngas with Controlled H₂/CO Ratios

et al. 2022

View full text Add to dashboard Cite

A hybrid photocatalytic assembly with Ni poly‐pyridine polymers binding on CdS quantum dots was developed via thiophene immobilization. The fabricated hybrid assembly facilitated efficient charge separation, and each component endowed great synergy. As a result, a high syngas production rate was achieved over 5500 μmol gcat−1 h−1 from photocatalytic CO2 reduction under visible‐light irradiation, accompanied by an adjustable H2/CO ratio ranging from 4 : 1 to 1 : 3. A novel hybrid assembly was described for syngas synthesis with boosted activity and controlled selectivity, which provides a profile to ingeniously understand molecular‐level design for photocatalysts.

show abstract

CuS -mediated two reaction systems enable biomimetic photocatalysis in CO2 reduction with visible light

Cited by 16 publications

References 46 publications

Defect Engineering in CuS_x/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO₂ into CO

Defect Engineering in CuS_x/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO₂ into CO

Constructing a Redox-Active Cu(I)-Pyridyltriazine Framework for Catalytic Photoreduction of Nitrobenzenes and Carboxylic Cyclization of Alkynol with CO₂

A Hybrid Assembly with Nickel Poly‐Pyridine Polymer on CdS Quantum Dots for Photo‐Reducing CO₂ into Syngas with Controlled H₂/CO Ratios

Contact Info

Product

Resources

About

CuS -mediated two reaction systems enable biomimetic photocatalysis in CO2 reduction with visible light

Cited by 16 publications

References 46 publications

Defect Engineering in CuSx/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO2 into CO

Defect Engineering in CuSx/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO2 into CO

Constructing a Redox-Active Cu(I)-Pyridyltriazine Framework for Catalytic Photoreduction of Nitrobenzenes and Carboxylic Cyclization of Alkynol with CO2

A Hybrid Assembly with Nickel Poly‐Pyridine Polymer on CdS Quantum Dots for Photo‐Reducing CO2 into Syngas with Controlled H2/CO Ratios

Contact Info

Product

Resources

About

Defect Engineering in CuS_x/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO₂ into CO

Defect Engineering in CuS_x/COF Hybridized Heterostructures: Synergistic Facilitation of the Charge Migration for an Efficacious Photocatalytic Conversion of CO₂ into CO

Constructing a Redox-Active Cu(I)-Pyridyltriazine Framework for Catalytic Photoreduction of Nitrobenzenes and Carboxylic Cyclization of Alkynol with CO₂

A Hybrid Assembly with Nickel Poly‐Pyridine Polymer on CdS Quantum Dots for Photo‐Reducing CO₂ into Syngas with Controlled H₂/CO Ratios