Activated CdS/ sulfur doped g-C3N4 photocatalyst for dye and antibiotic degradation: Experimental and DFT verification of S-scheme heterojunction DOI
Xu Duan, Jian Yang, Jiaqing Zhu

и другие.

Environmental Research, Год журнала: 2024, Номер unknown, С. 120487 - 120487

Опубликована: Ноя. 1, 2024

Язык: Английский

Novel preparation strategy of graphdiyne (CnH2n-2): One-pot conjugation and S-Scheme heterojunctions formed with MoP characterized with in situ XPS for efficiently photocatalytic hydrogen evolution DOI
Zhiliang Jin, Youlin Wu

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 327, С. 122461 - 122461

Опубликована: Фев. 13, 2023

Язык: Английский

Процитировано

98

In Situ Formation ZnIn2S4/Mo2TiC2 Schottky Junction for Accelerating Photocatalytic Hydrogen Evolution Kinetics: Manipulation of Local Coordination and Electronic Structure DOI

Qing Xi,

Fangxia Xie,

Jianxin Liu

и другие.

Small, Год журнала: 2023, Номер 19(24)

Опубликована: Март 15, 2023

Regulating electronic structures of the active site by manipulating local coordination is one advantageous means to improve photocatalytic hydrogen evolution (PHE) kinetics. Herein, ZnIn2 S4 /Mo2 TiC2 Schottky junctions are designed be constructed through interfacial In3+ with electronegative O terminal group on Mo2 based different work functions. Kelvin probe force microscopy and charge density difference reveal that an unidirectional transport channel across interface from established formed nucleophilic/electrophilic region. The increased electron inhibits backflow electrons, boosts transfer separation, optimizes adsorption energy. Therefore, photocatalyst exhibits a superior PHE rate 3.12 mmol g-1 h-1 under visible light, reaching 3.03 times pristine . This provides some insights inspiration for preparing MXene-based catalysts accelerate

Язык: Английский

Процитировано

77

Revealing the Selective Bifunctional Electrocatalytic Sites via In Situ Irradiated X‐Ray Photoelectron Spectroscopy for Lithium–Sulfur Battery DOI Creative Commons
Pengpeng Zhang, Yige Zhao, Yukun Li

и другие.

Advanced Science, Год журнала: 2023, Номер 10(8)

Опубликована: Янв. 16, 2023

The electrocatalysts are widely applied in lithium-sulfur (Li-S) batteries to selectively accelerate the redox kinetics behavior of Li2 S, which bifunctional active sites established, thereby improving electrochemical performance battery. Considering that Li-S battery is a complex closed "black box" system, internal reaction routes and cannot be directly observed monitored especially due distribution potential active-site structures their dynamic reconstruction. Empirical evidence demonstrates traditional test methods theoretical calculations only probe net result multi-factors on an average whole scale. Herein, based amorphous TiO2-x @Ni selective model catalyst, these limitations overcome by developing system couples light field situ irradiated X-ray photoelectron spectroscopy synergistically convert into "see-through" for direct observation charge transportation, thus revealing Ni nanoparticle as oxidation reduction promote decomposition nucleation respectively. This work provides universal method achieve deeper mechanistic understanding bidirectional sulfur electrochemistry.

Язык: Английский

Процитировано

62

Understanding the unique Ohmic-junction for enhancing the photocatalytic activity of CoS2/MgIn2S4 towards hydrogen production DOI
Jiangshan Li, Jun Yao,

Qiang Yu

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 351, С. 123950 - 123950

Опубликована: Апрель 24, 2024

Язык: Английский

Процитировано

56

Interface engineering of Mn3O4/Co3O4 S-scheme heterojunctions to enhance the photothermal catalytic degradation of toluene DOI

Jungang Zhao,

Caiting Li, Yu Qi

и другие.

Journal of Hazardous Materials, Год журнала: 2023, Номер 452, С. 131249 - 131249

Опубликована: Март 22, 2023

Язык: Английский

Процитировано

51

Optimizing hydrogen production by alkaline water decomposition with transition metal-based electrocatalysts DOI Creative Commons
Jingjing Li,

Zheng‐Yin Jing,

Haotian Bai

и другие.

Environmental Chemistry Letters, Год журнала: 2023, Номер 21(5), С. 2583 - 2617

Опубликована: Июнь 3, 2023

Abstract Burning fossil fuels account for over 75% of global greenhouse gas emissions and 90% carbon dioxide emissions, calling alternative such as hydrogen. Since the hydrogen demand could reach 120 million tons in 2024, efficient large-scale production methods are required. Here we review electrocatalytic water splitting with a focus on reaction mechanisms, transition metal catalysts, optimization strategies. We discuss mechanisms decomposition evolution. Transition catalysts include alloys, sulfides, carbides, nitrides, phosphides, selenides, oxides, hydroxides, metal-organic frameworks. The can be optimized by modifying nanostructure or electronic structure. observe that metal-based electrocatalysts excellent due to their abundant sources, low cost, controllable structures. Concerning optimization, fluorine anion doping at 1 mol/L potassium hydroxide yields an overpotential 38 mV current density 10 mA/cm 2 . efficiency also enhanced adding atoms nickel sulfide framework.

Язык: Английский

Процитировано

45

Defect-Induced Synergetic Effect of Bi-Based Compounds for One-Pot Conversion of Organic Pollutants into CO via Coupling Photodegradation of Carbamazepine with Photoreduction of CO2 DOI
Lingling Zheng, Lei Tian,

Longshuai Zhang

и другие.

ACS Catalysis, Год журнала: 2024, Номер 14(4), С. 2134 - 2143

Опубликована: Янв. 25, 2024

The waste of carbon sources and greenhouse gas production during wastewater treatment have become extremely important environmental issues. Herein, the BiOBr/BiVO4 compounds with defect-induced frustrated Lewis acid–base pairs (DFLPs) internal charge transfer were fabricated to convert organic pollutants into CO nearly 100% selectivity. oxygen vacancy (Ov) induced built-in electric field in create directional from BiOBr BiVO4. Density functional theory (DFT) calculations prove that Ov combines its adjacent hydroxyls form DFLP active sites can additionally capture activate CO2. Meanwhile, reduce formation-free energy COOH* intermediates, which is key rate-limiting step CO2 high This system has achieved selective conversion value-added chemicals pollutant degradation provides a theoretical basis for actual recycling sources.

Язык: Английский

Процитировано

32

Construction of unique floating Bi2WO6/g-C3N4 S-scheme heterojunction to promote photocatalytic activity DOI

Delu Cao,

Su Ni, Xinyu Wang

и другие.

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112939 - 112939

Опубликована: Апрель 30, 2024

Язык: Английский

Процитировано

24

Rational Design of Three Dimensional Hollow Heterojunctions for Efficient Photocatalytic Hydrogen Evolution Applications DOI Creative Commons
Jingwen Pan, Dongbo Wang, Donghai Wu

и другие.

Advanced Science, Год журнала: 2024, Номер 11(13)

Опубликована: Янв. 23, 2024

Abstract The efficiency of photocatalytic hydrogen evolution is currently limited by poor light adsorption, rapid recombination photogenerated carriers, and ineffective surface reaction rate. Although heterojunctions with innovative morphologies structures can strengthen built‐in electric fields maximize the separation charges. However, how to rational design novel multidimensional simultaneously improve above three bottleneck problems still a research imperative. Herein, unique Cu 2 O─S@graphene oxide (GO)@Zn 0.67 Cd 0.33 S Three dimensional (3D) hollow heterostructure designed synthesized, which greatly extends carrier lifetime effectively promotes H production rate reached 48.5 mmol g −1 h under visible after loading Ni 2+ on heterojunction surface, 97 times higher than that pure Zn nanospheres. Furthermore, reach 77.3 without cooling, verifying effectiveness photothermal effect. Meanwhile, in situ characterization density flooding theory calculations reveal efficient charge transfer at p‐n 3D interface. This study not only reveals detailed mechanism depth but also rationalizes construction superior heterojunctions, thus providing universal strategy for materials‐by‐design high‐performance heterojunctions.

Язык: Английский

Процитировано

21

Revealing electron numbers-binding energy relationships in heterojunctions via in-situ irradiated XPS DOI
Yukun Li, Yongshang Zhang,

Ruohan Hou

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 356, С. 124223 - 124223

Опубликована: Май 22, 2024

Язык: Английский

Процитировано

20